PostgreSQL is the world's most advanced, powerful, and efficient open source relational database management system, and some of the world’s most demanding applications rely on PostgreSQL as their primary database management system. PostgreSQL is known for its accuracy, security, and scalability. A PostgreSQL Developer creates ways to store corporate data in a reliable, secure, and efficient way. They can create scalable databases using these technologies - this means that a PostgreSQL Developer can help you keep up with the ever increasing demand for larger amounts of data. They can also develop applications to read from and write to these databases and optimize existing databases for better performance.

Compared to other database management systems, PostgreSQL boasts superior performance, reliability and security. This Database Management System is also renowned for its extensibility, meaning that it allows developers to customize their databases according to the exact needs of their application and load requirements - whether it's a simple web application or huge enterprise scale solutions.

Here's some projects our expert PostgreSQL Developer made real:

  • Developing unique solutions with Odoo Manufacturing & Maintenance Module
  • Connecting web applications with secure REST API integrations
  • Creating data extraction scripts with Nodejs
  • Developing complex SaaS solutions with Laravel/React/AWS
  • Implementing advanced authentication protocols (JWT)
  • Truckloads of migration projects from different AWS stacks & SSO integrations
  • Developing automation & no-code project pipelines leveraging nodejs and python
  • Building serverless Java applications with Springboot and other frameworks
  • Publishing/Hosting express.js & handlebars.js web apps

PostgreSQL technology has been a go-to solution for many clients when creating bespoke applications that meet the needs of their business. Our PostgreSQL Developers have built everything from small custom applications to complex enterprise solutions on Freelancer.com. You too can hire an expert developer here today to make your project happen!

De 104,664 opiniones, los clientes califican nuestro PostgreSQL Developers 4.9 de un total de 5 estrellas.
Contratar a PostgreSQL Developers

PostgreSQL is the world's most advanced, powerful, and efficient open source relational database management system, and some of the world’s most demanding applications rely on PostgreSQL as their primary database management system. PostgreSQL is known for its accuracy, security, and scalability. A PostgreSQL Developer creates ways to store corporate data in a reliable, secure, and efficient way. They can create scalable databases using these technologies - this means that a PostgreSQL Developer can help you keep up with the ever increasing demand for larger amounts of data. They can also develop applications to read from and write to these databases and optimize existing databases for better performance.

Compared to other database management systems, PostgreSQL boasts superior performance, reliability and security. This Database Management System is also renowned for its extensibility, meaning that it allows developers to customize their databases according to the exact needs of their application and load requirements - whether it's a simple web application or huge enterprise scale solutions.

Here's some projects our expert PostgreSQL Developer made real:

  • Developing unique solutions with Odoo Manufacturing & Maintenance Module
  • Connecting web applications with secure REST API integrations
  • Creating data extraction scripts with Nodejs
  • Developing complex SaaS solutions with Laravel/React/AWS
  • Implementing advanced authentication protocols (JWT)
  • Truckloads of migration projects from different AWS stacks & SSO integrations
  • Developing automation & no-code project pipelines leveraging nodejs and python
  • Building serverless Java applications with Springboot and other frameworks
  • Publishing/Hosting express.js & handlebars.js web apps

PostgreSQL technology has been a go-to solution for many clients when creating bespoke applications that meet the needs of their business. Our PostgreSQL Developers have built everything from small custom applications to complex enterprise solutions on Freelancer.com. You too can hire an expert developer here today to make your project happen!

De 104,664 opiniones, los clientes califican nuestro PostgreSQL Developers 4.9 de un total de 5 estrellas.
Contratar a PostgreSQL Developers

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    49 trabajos encontrados

    Trabajo con Odoo y necesito reforzar el esquema de seguridad y pulir algunos flujos clave: 1. Restricciones de permisos • Quiero que los usuarios normales solo vean y editen lo estrictamente necesario en los módulos de Ventas, Inventario y Proyectos. • Deberás crear grupos, reglas de acceso y record rules a nivel de modelo; nada se hará con Odoo Studio. 2. Personalización del módulo de Ventas • Ajusta la vista de creación de presupuestos para que muestre solo los campos y botones que el negocio requiere. • El cambio debe respetar las buenas prácticas de vistas heredadas y ser totalmente mantenible en futuras actualizaciones. 3. Optimización general • Revisa la configuració...

    €126 Average bid
    €126 Oferta promedio
    52 ofertas

    Desarrollador Full Stack (React/NestJS) - Importador de Excel con Imágenes y Reportes (Imprescindible Español) Descripción del Proyecto: Busco un desarrollador Senior con dominio fluido del español (imprescindible) para finalizar una calculadora de presupuestos ya avanzada en su desarrollo . La interfaz y la lógica de operaciones básicas están listas; el objetivo es integrar dos módulos críticos de gestión de datos en un plazo de 3 semanas, dividido en dos fases de entrega. Stack Tecnológico Requerido: Frontend: (TypeScript) . Backend: con PostgreSQL . Entorno: ES6 modules, Webpack, GitHub y manejo de servidores Linux . -------------------------------------------------------------------------------- Fase 1: Imp...

    €209 Average bid
    €209 Oferta promedio
    70 ofertas

    Estoy iniciando el desarrollo de un ERP contable y necesito un desarrollador senior full-stack que lidere tanto el backend como el frontend. La solución se construirá con Java (Spring Boot), arquitectura de microservicios, Angular para la interfaz y PostgreSQL como base de datos. Qué espero de tu perfil • Experiencia experta en contabilidad aplicada al software: plan de cuentas, asientos, conciliaciones y estados financieros. • Dominio comprobado de Java, Angular y PostgreSQL; manejo sólido de microservicios y APIs REST seguras. • Residencia preferente en Ecuador, Colombia o México para coincidir en zona horaria. Alcance inicial del trabajo 1. Módulo de Facturación electrónica y tradicional con gestión ...

    €11343 Average bid
    €11343 Oferta promedio
    49 ofertas
    Finish JS Budget Calculator
    2 días left
    Verificado

    Tengo casi lista mi calculadora de presupuestos desarrollada en JavaScript; las operaciones básicas funcionan y la interfaz ya está diseñada. Solo faltan dos piezas clave antes de poder lanzarla: • Integrar un importador CSV que permita al usuario subir su archivo, validar la estructura de datos y asignar cada columna al campo correspondiente. Quiero una experiencia sencilla (drag-and-drop), mensajes de error claros y pruebas unitarias que aseguren su estabilidad. • Añadir un generador de informes. La lógica de cálculo ya expone toda la información necesaria; tu tarea será formatear esos datos y ofrecerlos para descarga (PDF y/o HTML) desde la misma interfaz, dejando el código listo para que pueda ampliarse con gr&a...

    €564 Average bid
    €564 Oferta promedio
    104 ofertas

    3. FRONTEND – ESPECIFICACIONES El frontend deberá desarrollarse en React (preferentemente ) e incluir un editor visual basado en canvas ( o ). El estilo de la plataforma web es similar a la Web Pixory Funcionalidades: - Editor de páginas con vista doble (spread) con tamaño de hoja formato A4 - Drag & drop de imágenes - Redimensionamiento, rotación y recorte - Inserción de texto y formas - Sistema de capas - Zoom y navegación - Indicadores visuales de sangrado, margen de seguridad y centro del libro - Soporte para imágenes que ocupen doble página - Validación de calidad de imagen (DPI en tiempo real) - Sistema de plantillas editables - Organización automática básica de fotos (por fecha EXI...

    €409 Average bid
    €409 Oferta promedio
    112 ofertas

    **Project Description:** I am looking for an experienced full-stack developer to build a web-based tool that identifies severe weather events across the United States and generates contractor leads in the affected areas. The goal is to create a system that turns real-time storm data into actionable business opportunities. --- **Core Functionality:** **1. Real-Time Storm Tracking** * Integrate weather APIs (NOAA, National Weather Service, or similar) * Track storms based on: * Wind speed (60–70+ mph) * Hail size (priority metric) * Precipitation * Rank storms by severity --- **2. Storm Ranking & Filtering** * Display a dashboard of active storms ranked by severity * Filters for: * Wind speed * Hail size * Location (state, region, ZIP) * Time range (last 24...

    €1810 Average bid
    €1810 Oferta promedio
    109 ofertas

    I am looking for a strong App Router developer to assist with productionising an existing full-stack application. The system already has: defined route structure Prisma-based data model OAuth (Google) authentication approach API route pattern established frontend interaction flow I am not looking for system design or a rebuild, but for someone who can work within an existing architecture and implement cleanly. Initial scope (for discussion) Prisma + PostgreSQL integration / OAuth session handling API route implementation and validation ensuring a clean end-to-end interaction loop Please answer the following (required) How would you structure Prisma + in a App Router project using server routes? How would you connect OAuth authentication to an existing user table? What are the most ...

    €949 Average bid
    €949 Oferta promedio
    135 ofertas

    Full-Stack Software Engineer — Sherpa Teknologi Lokasi: Jakarta (hybrid / fleksibel) · Tipe: Full-time · Mulai: Secepatnya Tentang kami Sherpa Teknologi mentransformasi bisnis partner kami dengan mengidentifikasi dan mengimplementasikan solusi teknologi yang berdampak komersial. Kami sedang membangun platform olahraga dengan memperluas technology stack kami saat ini, yang sudah mencakup automated upload, face recognition, sistem booking-to-payment yang sepenuhnya online, dan integrasi dengan payment provider. Kami mencari Full-Stack Engineer untuk membantu mewujudkan hal ini. Kami senang membangun hal-hal inovatif yang berdampak positif bagi bisnis, orang, dan Indonesia. Kami self-driven, kami ambisius, kami mampu bekerja mandiri sekaligus berkolaborasi dengan baik, kam...

    €4 / hr Average bid
    €4 / hr Oferta promedio
    6 ofertas

    We are looking to hire a freelancer to develop a secure and fully functional Online Examination Platform with Candidate Login and Admin Dashboard. Project Overview: The system should allow conducting online exams with proper user management, secure exam environment, and automatic evaluation. Key Features Required: 1. User Login System Candidate login using email and password Admin login for managing the platform Role-based access (Admin / Candidate) 2. Candidate Management Bulk upload candidates using CSV file (name, email, password) Manual add/edit/delete candidates Auto-generated login credentials 3. Online Examination System Secure exam interface for candidates MCQ-based exams with auto-evaluation Real-time submission and scoring Exam security features: Detect/limit tab switchi...

    €161 Average bid
    €161 Oferta promedio
    69 ofertas

    Looking for Resource with expertise in Node Js, Next js, PostgreSQL, Railway platform. Should be able to do the fast development with Claude. Tight Deadline- need dedicated resource available for next two months. Need individual resource, no agencies at all

    €399 Average bid
    €399 Oferta promedio
    194 ofertas

    Senior Geospatial Engineer (Python + PostGIS) Overview We’re building a high-performance mapping platform that allows users to draw areas on a map and instantly return accurate address counts. We hold a dataset of 30M+ UK addresses (lat/lng) and need to ensure queries are fast, scalable and highly accurate. What we need We’re looking for a senior geospatial engineer to work alongside our developer and help refine the architecture and implementation. Scope of work Optimise spatial queries across large datasets (30M+ points) Ensure near-instant response times Implement best practices for spatial indexing (PostGIS / GiST) Support handling of: Polygons Radius queries Buffers (routes) Boundaries GIS uploads (GeoJSON / shapefiles) Ensure consistent accuracy across all query type...

    €177 Average bid
    €177 Oferta promedio
    80 ofertas

    Laravel + Filament Backend Developer — Reservation System Project Overview We are building a reservation management dashboard using Laravel and Filament, and we're looking for an experienced backend developer to join us for this task.. The system handles reservations, customers, organizations, deposits, and payments — and we need help extending it with new integrations and features.. Tech Stack Backend: Laravel (PHP) Admin Panel: Filament Database: PostgreSQL Scope of Work 1. Onboarding Get familiar with the existing system architecture, codebase, and conventions. Review current modules: reservations, customers, organizations, deposits, payments. Set up the local development environment. 2. Paymob Payment Integration Implement Paymob authentication (API key exchange...

    €415 Average bid
    €415 Oferta promedio
    190 ofertas

    I need a complete, production-ready e-commerce website built from the ground up. The project covers everything from setting up the back-end architecture to delivering a polished, responsive front-end that works flawlessly on desktop and mobile. You’re free to recommend the platform—whether that ends up being Shopify, WooCommerce, Magento, or another stack that better fits the brief—but your choice must balance scalability, ease of management, and long-term cost efficiency. I’m looking for clean, maintainable code, modern UI/UX standards, and a checkout flow that converts smoothly. Key deliverables • Full storefront with product catalog, search, filtering, and variant handling • Secure payment gateway integration (major cards + PayPal/Apple Pay/Go...

    €36 / hr Average bid
    €36 / hr Oferta promedio
    110 ofertas

    We are looking for a skilled React and Developer to join our remote engineering team. You will be responsible for building scalable, high-performance features across our ticketing and event management platform using modern web technologies. Responsibilities • Develop and maintain web applications using and React • Build scalable backend integrations with PostgreSQL • Integrate and deploy applications using AWS infrastructure • Write clean, maintainable, and well-documented code • Collaborate with product managers, designers, and backend engineers • Optimise application performance and ensure responsiveness • Participate in code reviews and technical planning Required Skills • Strong experience with NestJs and React • Solid understan...

    €6 / hr Average bid
    €6 / hr Oferta promedio
    59 ofertas

    1. Project Overview Vertex Suite is a Smart Business Management ERP built specifically for Indian SMBs. It replaces legacy tools and Excel-based workflows with a modern, cloud-based platform. The application is fully functional, deployed, and actively used by early adopters. We are looking for an experienced developer to join the project to fix known issues, optimize database performance, and build out new modules to scale it into a comprehensive SaaS product. 2. Tech Stack Requirements Frontend Framework: 14/15 (App Router) with TypeScript (Non-negotiable) Backend & Database: Supabase (PostgreSQL, Auth, Row Level Security, Edge Functions) Styling: Vanilla CSS (Custom design system with dark mode/glassmorphism—We do not use Tailwind) Components/Libraries: React hooks, Recha...

    €114 Average bid
    €114 Oferta promedio
    56 ofertas

    I’m building a full-scale, multi-tenant SaaS platform and need an experienced developer who can take the idea from architecture through deployment. The core requirement is true multi-tenancy: a single code-base and shared infrastructure that isolates data and configuration for each customer while still letting me roll out updates globally. Access control must combine both role-based and feature-based permissions so that I can define granular user roles inside each tenant and also toggle modules or premium features per account without redeploying. I want the data layer designed around a hybrid model—relational tables for structured, transactional data alongside a NoSQL store for high-volume or schemaless collections—so familiarity with both SQL (PostgreSQL or MySQL) and s...

    €246 Average bid
    €246 Oferta promedio
    165 ofertas

    I already have a **premium multi-vendor marketplace MVP fully built locally** and I need a senior full-stack developer to **productionize, secure, and deploy it live**. This is NOT a build-from-scratch project. The codebase is already complete and built with: ## Current Stack * 15 * React * TypeScript * Tailwind CSS * Prisma ORM * PostgreSQL-ready schema * REST API routes * Stripe + Stripe Connect placeholders * Vercel-ready architecture ## What is already built * premium homepage * dynamic product pages * buyer auth pages * buyer dashboard * checkout flow foundation * seller dashboard * payout foundation * seller upload wizard * public seller storefronts * marketplace search + categories + filters * admin moderation dashboard * responsive luxury UI * mobile layouts * Prisma schem...

    €12 / hr Average bid
    €12 / hr Oferta promedio
    172 ofertas

    The Role We're looking for a software engineer to join our team. You'll work across the stack on real problems that matter to our clients. This is an environment where good judgment, smart trade-offs, and quick learning matter more than checking boxes. What You'll Work On • Building and maintaining the dashboard used by our client. • Writing, maintaining and optimizing database queries and functions. • Extending and maintaining our automation workflows. • Writing tests to ensure reliability as the platform grows What We're Looking For Must Have: 2-3 years of professional software development experience Strong problem-solving skills, you can break down ambiguous problems, evaluate trade-offs, and make sound technical decisions with incomplete infor...

    €462 Average bid
    €462 Oferta promedio
    158 ofertas

    I need a cloud-ready School ERP written in ASP.NET MVC (C#) that can host several schools under the same deployment while keeping data strictly isolated per client. Core scope • Modular design: Attendance Management, Fee Management, Examination Management with printable Marksheet, Library Management and real-time Bus Tracking must ship in the first release. • Role-based access: Students, Teachers, Admins and Parents each see their own dashboards, reports and notifications. • Secure login: the platform must enforce Multi-Factor Authentication (MFA) out of the box. • Multi-tenant control panel: I should be able to onboard a new school in minutes, assign a custom sub-domain/logo/theme and manage licence limits without touching code. • Clean UI built on Bo...

    €988 Average bid
    €988 Oferta promedio
    50 ofertas

    We are looking for an experienced developer to build an MVP of an internal AI-powered tool for hotel asset management. This is not a chatbot project. The goal is to build a structured application that: - analyzes hotel performance data (KPIs vs budget/forecast) - reads and searches documents (monthly reports, contracts) - generates owner-side analysis and challenge memos Scope of work (MVP): You will build a simple web-based tool that: 1) Data ingestion Upload PDFs (monthly reports, contracts) Upload Excel files (KPIs, budgets, forecasts) Uploads PPT files (commentary) 2) Data storage PostgreSQL database (structured KPI data) Document storage + parsing Vector search using embeddings (pgvector preferred) 3) AI integration Use OpenAI API (Responses API + embeddings) Implement: KPI ...

    €1172 Average bid
    Acuerdo de Confidencialidad
    €1172 Oferta promedio
    100 ofertas

    We are building a multi-seller marketplace as a Telegram Mini App. Full project details shared after NDA signing. TECH STACK — OUR PREFERENCE (OPEN TO DISCUSSION): 15 + TypeScript (Telegram WebApp SDK) Node.js + Express or Python FastAPI PostgreSQL + Redis Docker + Vercel or Hetzner deployment Custom payment API integration (local mobile payment + international payment) AI integration experience (OpenAI API or equivalent) for search, fraud detection, and support bot We are open to discussing the architecture and tech stack during the design phase. If you have a better approach for our use case, we want to hear it. ARCHITECTURE REQUIREMENT: The backend must be API-first and fully decoupled from the Telegram layer. The same API must support web and mobile clients in the future wit...

    €495 Average bid
    €495 Oferta promedio
    237 ofertas

    Summary I am building an SEO-driven education discovery platform that helps students find and compare university programs across 30 countries. It will generate leads for my existing education consultancy business. This is not a brochure website. It is a data-heavy, search-first product with monetization tiers and payment integration. Please visit (reference website) to understand the project before applying. What Already Exists 100,000 programs across 1,000 universities in 30 countries – structured Excel data ready for migration. ------------------------------------------------------------ Core Features Required: - 1. Search & Discovery: - Filtered search – country, degree level, fees, duration, intake month. (Suggest a search engine similar to Elasticsearch) - All filt...

    €3276 Average bid
    €3276 Oferta promedio
    73 ofertas

    I have an AI-powered accounting web app that already runs on Supabase and a Lovable-based frontend. My co-founder and I are now racing toward launch and need an experienced full-stack developer who can jump straight into our existing codebase, clear out lingering bugs, refine a few rough UI edges, and finish two critical integrations: 1. Cashfree – wire up payment processing and subscription management so new users can pay and activate plans seamlessly inside the app. 2. GST Portal – connect through our chosen Suvidha provider, letting Indian businesses push GST returns directly from their dashboard. Scope of work • Frontend bug fixes and small UI polish (Supabase Auth flows, dashboard widgets, responsive tweaks). • Backend bug fixes in our Supabase functions,...

    €15 / hr Average bid
    €15 / hr Oferta promedio
    57 ofertas

    I already have a fully built SaaS: Django on the backend, React on the frontend, PostgreSQL hosted in Supabase, Celery workers, Razorpay payments, and Anthropic API calls. All source code, a step-by-step handbook, and an up-to-date README are ready for you; nothing needs to be coded from scratch. Your mission is to bring the project to life on Replit (or a VPS if that proves smoother) so that I can share a live URL with users today. The workflow I’m expecting is straightforward: • Spin up two Repls—one for the Django API/Celery worker and one for the React client. • Copy , add real keys, and verify every variable (Django secret, Supabase creds, Razorpay keys, Anthropic key, Celery broker/redis URL, etc.). • Point the Django settings to the existing Supabase...

    €68 Average bid
    €68 Oferta promedio
    40 ofertas

    Need Automation QA expert for the next two months. (7+ year exp ) No Agencies, Indian based resource Preferred. Exp working on project like Node Js, Next Js and PostgreSQL AI tool exp for testing must

    €967 Average bid
    €967 Oferta promedio
    52 ofertas

    Looking for Resource with expertise in Node Js, Next js, PostgreSQL, Railway platform. Should be able to do the fast development with Claude. Tight Deadline- need dedicated resource available for next two months. Need individual resource, no agencies at all

    €1021 Average bid
    €1021 Oferta promedio
    99 ofertas

    I’m have built a green-field enterprise platform and need an experienced full-stack developer who lives and breathes TypeScript, React, NodeJS, and modern API design to validate the architecture, suggest practical improvements to take it to the next level of maturity. The core of the work is validating what is built, measure the maturity, come up with practical steps to scale it to SaaS scale for implementation on a cloud provider. If you’re comfortable taking ownership across the stack—from polished React UIs to secure, scalable APIs—let’s push this enterprise product forward together.

    €14 / hr Average bid
    €14 / hr Oferta promedio
    137 ofertas
    Cargo Service CRM Development
    4 días left
    Verificado

    **Project Description: CRM System for Cargo Service** I am looking for an experienced developer or team to build a custom CRM system tailored for a cargo/logistics service. The system should be user-friendly, efficient, and support multiple call agents handling bookings simultaneously. **Key Requirements:** * **Multi-Agent Booking System:** Multiple call center agents should be able to create bookings at the same time without conflicts. * **Customer Booking Process:** * Booking initiated using the customer’s mobile number * Capture essential sender details (name, address, contact info, etc.) * Fast and simple data entry interface * **Customer History:** * Maintain complete booking history for each customer using their mobile number * View past shipments, frequency,...

    €231 Average bid
    €231 Oferta promedio
    243 ofertas

    I need a developer for a cloud-based pilot project for political media monitoring and communication workflow support. The pilot should: - collect public content from selected news portals, public Facebook pages, YouTube channels, and political/institutional websites - clean, deduplicate, and store content in a database - classify content by topic, tone, target, and urgency - generate short summaries and suggested response drafts using a cloud LLM - provide an internal command board where a user can approve, reject, edit, and route content - integrate with WordPress to create drafts, assign categories/tags, and prepare content for publication - support internal distribution by email / Telegram / WhatsApp only after manual approval - include audit logs showing who logged in, what they revie...

    €1120 Average bid
    €1120 Oferta promedio
    132 ofertas

    The spec is done. The data model, every API route, all 9 screens, and a 46-step build sequence are written out in full. You will never wonder what to build next. I need a React Native developer to turn that document into a working iOS and Android MVP in two weeks. The stack is already decided: React Native + Expo, Fastify backend, Postgres, Cloudflare R2 for photo storage, RevenueCat for subscriptions. This is a Claude Code project. I expect you to use it. If you know how to work with AI-assisted development at speed — feed a spec, review output, iterate fast — you will move through this quickly. If you prefer to write every line manually, this is not the right fit. At the end of two weeks I need: - Working camera flow on both iOS and Android simulators - Photos uploading an...

    €1002 Average bid
    €1002 Oferta promedio
    209 ofertas

    Job Description We are looking for a Senior Technical Lead / Architect Developer to help audit, improve, and lead the technical development of our international automotive marketplace platform. Our company exports used cars from Japan to customers worldwide. Our website currently contains 100,000+ vehicle listings and integrates with Japanese vehicle auctions and dealer inventory feeds. This role is ideal for an experienced engineer who can both design system architecture and actively contribute to coding. You will work directly with the business owner and help guide future development of the platform. About Our Platform Our system includes two main components: 1. Public Website (SEO Marketplace) Used by international customers to: browse fixed-price vehicle inventory search and f...

    €45 / hr Average bid
    €45 / hr Oferta promedio
    100 ofertas

    I need a Cyclos-certified system administrator to perform a clean installation of Cyclos 4 on my server and configure it specifically for a community-currency environment. The job goes beyond simply spinning up the software: once the core platform is running, I want the Payment systems, Member management, and Marketplace modules fully enabled, tested, and ready for real-world use. Please secure the installation, connect any required dependencies (Java, PostgreSQL, reverse proxy, HTTPS, mail service, etc.), and walk me through basic administrative tasks so I can manage users and currencies on my own. SSH access to a fresh VPS can be provided immediately. I will consider the work complete when the portal is accessible over HTTPS, all three modules operate without errors, and I have a brie...

    €843 Average bid
    €843 Oferta promedio
    92 ofertas

    Project Overview I am looking for an experienced developer/devops professional to help me set up and deploy Listmonk using Docker and Docker Compose, and take it live for production use. The objective is to build a fully functional, self-hosted email marketing system that is stable, secure, and optimized for sending outbound campaigns. Scope of Work 1. Docker-Based Installation Set up Listmonk using Docker and Docker Compose Configure PostgreSQL database correctly Ensure all services run reliably 2. Server & Deployment Setup Deploy on VPS (AWS / DigitalOcean / similar) Configure domain (e.g. ) Set up reverse proxy (Nginx or similar) Install SSL certificate (Let’s Encrypt) 3. Email Configuration (Critical) Configure SMTP (Gmail / Amazon SES / SendGrid / other) Ensure proper ema...

    €216 Average bid
    €216 Oferta promedio
    28 ofertas

    “Only apply if you have built dashboard/MIS systems earlier” Title: Build Government MIS Dashboard + Website (Full Stack Developer Required) Description: We are looking for an experienced Full Stack Developer to build a Government-style MIS Dashboard and Website similar to an existing prototype. Project Overview: The system will include: * MIS Dashboard (data analytics, charts, KPIs) * Public website portal * Role-based login system (Admin, State, District users) * Reports (PDF/Excel download) * Mobile responsive interface * Clean and modern UI Scope of Work: * Convert provided HTML prototype into production-ready system * Develop frontend + backend * Create database and APIs * Build dashboard with charts ( or similar) * Implement authentication and role-based access * E...

    €1151 Average bid
    €1151 Oferta promedio
    79 ofertas

    I want a web platform that lets Murder Mystery 2 players stake their Roblox items in real-time games—coin flip, jackpot and an upgrader—modelled as closely as possible on the look, feel and flow of bloxybet.com. Coin Flip • Any number of coin-flip rooms can run in parallel. Players should be able to open a room, set the wager, share the link and wait for an opponent, or instantly join an open room. The interface needs the same fast, casino-style experience Bloxybet offers, with live status updates through WebSockets or a similar solution. Jackpot & Upgrader Both games must mirror Bloxybet’s mechanics: tier-based jackpot pools that roll on a timer, and an upgrader where players select an item, choose a percentage chance and see an animation revealing suc...

    €423 Average bid
    €423 Oferta promedio
    71 ofertas

    我需要一位靠谱的全栈开发者,为我的餐饮连锁店完成一套基于 Web 的门店管理系统,并部署到云服务器。下面是核心范围: • 收银模块 —— 对接支付宝、微信等主流支付,并尽量实现自动分账; • 会员管理 —— 会员档案、储值、等级、优惠券; • 预约管理 —— 在线预订座位与包厢,实时更新状态; • 积分商城 ——   - 积分获取规则   - 积分兑换商品 • 数据看板 —— 日常营业额、客流、菜品排名等关键指标可视化; • 包厢管理 —— 包厢排期、状态、最低消费; • 小程序端 —— 为顾客提供下单、预约及积分查询入口。 我们已完成后台的部分前端页面,代码与设计稿可供参考;你需要对接接口或在现有框架上补全功能。请使用常见技术栈(如 Node.js / Java / Python + MySQL/PostgreSQL)并预留 RESTful API,以便后续扩展。 交付要求: 1. 代码托管在 Git(含规范的 README 与部署文档); 2. 基本单元测试与简单性能测试; 3. 云服务器部署脚本及环境说明; 4. 简短视频或文档演示主要操作流程。 项目时间并不非常紧,但质量必须可靠、结构清晰、易于维护。我倾向于分阶段验收:原型 → 核心功能 → 全量上线。请在提案中说明你过往的相关案例、拟用技术、预计周期以及任何对接所需的前置条件。

    €384 Average bid
    €384 Oferta promedio
    23 ofertas

    # AI Data Provenance & Compliance Platform ## Overview We are building a digital provenance platform focused on AI training data compliance. The platform enables organizations to: * Track the origin of datasets used in AI systems * Verify licensing and usage rights * Maintain an immutable audit trail of data usage * Generate compliance-ready reports for regulators (e.g. EU AI Act) This is not a general-purpose ML platform—it is a compliance and provenance layer for AI systems. --- ## Core Scope (MVP → Already Implemented) The system must: * Maintain a dataset registry with metadata (source, license, owner) * Automatically assign risk levels and compliance signals * Track relationships between datasets and AI models * Record audit logs for every action * Generate com...

    €557 Average bid
    €557 Oferta promedio
    203 ofertas

    Title: Study Center Seat & Fee Management Web Application (Custom Build) Description: I am looking for a developer to build a custom web-based management system for my study center (reading room / library seating business). This is NOT a traditional library system (no books). It is a seat-based system where students come to study using their own books. Project Overview: - Total seats: 140 - 110 normal seats (non-locker) - 30 locker seats (premium) Shift System: - Morning: 8:00 AM – 3:00 PM - Evening: 3:00 PM – 10:00 PM - Full Day: 8:00 AM – 10:00 PM Core Requirement (IMPORTANT LOGIC): 1. Normal seats (1–110): - Can be assigned to: a) One Morning student AND one Evening student (different users) OR b) One Full Day student (blocks both Morn...

    €76 Average bid
    €76 Oferta promedio
    52 ofertas

    Verified Review Platform – Product & Technical Specification 1. Product Overview Platform Type: Verified Review Marketplace Core Idea: Users submit reviews with proof of purchase, which are manually verified before contributing to brand ratings. Key Differentiator: Reviews without proof have limited credibility Verified reviews contribute to ratings and user credibility 2. User Roles Visitor (Not Logged In) Browse brands View reviews Cannot post reviews Registered User Submit reviews Upload proof of purchase Track review status (Pending / Approved / Rejected) Build profile and verified status Admin Approve/reject reviews Verify proof authenticity Approve/reject brand submissions Manage users and reports 3. Core Features A. Authentication System Google OAuth login Phone number l...

    €95 Average bid
    €95 Oferta promedio
    34 ofertas

    We are looking for an experienced QGIS developer to implement a custom solution for QGIS Server. The goal is to make a custom WMS request parameter available inside the QGIS data provider layer (e.g. PostGIS) so that it can be directly used in SQL queries. Background: We are using QGIS Server to serve WMS layers backed by a PostGIS database. We need to dynamically filter or modify data at the database level based on parameters passed in the WMS request. Example: Incoming WMS request: ...&SERVICE=WMS&REQUEST=GetMap&MY_PARAM=123 Required functionality: Extract custom parameter (e.g. MY_PARAM) from the WMS request in QGIS Server Make this parameter available within the QGIS execution context Ensure the parameter can be used inside the data provider (PostgreSQL/PostGIS) Pass t...

    €967 Average bid
    €967 Oferta promedio
    140 ofertas
    Resume App Env Bug Fixes
    2 días left
    Verificado

    Our online résumé builder is throwing small errors that all trace back to a mis-configured .env file. Because of this, users relying on the standard email-and-password flow can’t log in, and once they do manage to get past that hurdle, the template selector occasionally fails to load the chosen layout. Also we need to update the job API to the right API so users are able to select the right job and it redirects to the right job... Here’s what I need from you: • Audit the current environment variables, spot the mismatches, and put them in the correct format for both local and production builds. • Restore reliable email-and-password authentication so that login failures disappear. • Track down and fix the template-selection glitch (it currently ...

    €142 Average bid
    €142 Oferta promedio
    156 ofertas

    We are looking for an experienced full-stack developer (or small team) based in Hyderabad to design and develop a high-quality, scalable web and mobile application platform. The platform will function as a discovery and booking marketplace, enabling users to search, compare, and connect with relevant service providers through structured profiles, search filters, and booking functionality. The concept is broadly similar to a fitness discovery and booking platform, but detailed functional requirements will be shared only with shortlisted candidates after NDA. We are looking for a developer who can build a production-ready, scalable architecture using modern technologies similar to those used by leading platforms such as Urban Company, Airbnb, Zomato, Practo, etc. Preference will be given...

    €415 Average bid
    €415 Oferta promedio
    62 ofertas

    I want a web platform that lets Murder Mystery 2 players stake their Roblox items in real-time games—coin flip, jackpot and an upgrader—modelled as closely as possible on the look, feel and flow of bloxybet.com. Coin Flip • Any number of coin-flip rooms can run in parallel. Players should be able to open a room, set the wager, share the link and wait for an opponent, or instantly join an open room. The interface needs the same fast, casino-style experience Bloxybet offers, with live status updates through WebSockets or a similar solution. Jackpot & Upgrader Both games must mirror Bloxybet’s mechanics: tier-based jackpot pools that roll on a timer, and an upgrader where players select an item, choose a percentage chance and see an animation revealing suc...

    €400 Average bid
    €400 Oferta promedio
    114 ofertas

    We are seeking a senior development agency or highly experienced full-stack architect to build a highly secure, complex B2B SaaS platform. To protect our intellectual property, specific business logic will only be shared under an NDA. At a high level, this is a heavy data-processing and workflow automation platform. It features a dual-sided architecture: Admin Control Plane: An internal portal for our team to manage global master datasets, provision new tenants, and oversee infrastructure. Secure Tenant Workspace: Isolated environments for our enterprise clients to interact with data, manage internal workflows, process documents, and connect their own third-party tools. Architectural & Tech Stack Requirements The platform must be built with a strict focus on loose coupling, high pe...

    €225 Average bid
    €225 Oferta promedio
    27 ofertas

    Our SaaS platform already serves millions of visitors across 300+ branches, and new features keep piling up. I need a reliable developer who can stay with us for the long haul, taking ownership of backend work in Laravel and Python while pushing new UI pieces in React. You’ll also help wire advanced AI/LLM functionality into existing services, so being comfortable with tools like ChatGPT and Claude is important. Day-to-day you’ll: • Extend and refactor APIs, queues, and micro-services in Laravel or Python. • Build or enhance React components that consume those endpoints. • Prototype and integrate AI/LLM features (content generation, semantic search, agent workflows). • Ship to Ubuntu 22.04 VPS instances and keep an eye on performance, ideally with Pos...

    €17 / hr Average bid
    €17 / hr Oferta promedio
    309 ofertas

    We're a translation services company building an AI-powered management system. The platform will connect translation agencies with clients, automate project estimation using AI, manage translator assignments, and handle quality assurance through an intelligent review system. Document analysis AI-powered document upload and processing (Word, PDF, Excel, PowerPoint) Automatic word count, language pair detection, and complexity assessment Intelligent quote generation based on document type, subject matter, and deadline Real-time cost estimation with breakdown by language pair and service type Project Management Client portal for uploading documents and tracking project status Automated translator matching based on language pairs, specialization, and availability Deadline management w...

    €17 / hr Average bid
    €17 / hr Oferta promedio
    340 ofertas

    Project Title: Build Holiday Rental Platform (Airbnb-like) – T3 Stack (, tRPC, Directus) Project Description: We are looking for an experienced developer to help build a modern holiday property rental platform similar to Airbnb, using our predefined tech stack. Current Tech Stack: - T3 Stack (, TypeScript, Tailwind) - tRPC (end-to-end typesafe APIs) - Directus (Headless CMS) - SQLite (WAL Mode) – separate DBs for app & logs - Data Studio integration - Observability tooling - Deployment on Planned Future Stack: - PostgreSQL (scaling) - Redis (caching & AI features) - AI-powered features (recommendations, automation) Core Features Required: - User accounts (Hosts & Guests) - Property listings & management - Booking & availability calendar - Secure pay...

    €7216 Average bid
    €7216 Oferta promedio
    189 ofertas

    Project Title: Vehicle Transport Load Board (MVP) Project Overview: A custom-built B2B marketplace (No CMS/WordPress) connecting vehicle Shippers/Brokers with Auto Transport Carriers. The core value of the platform is a manual verification workflow performed by our internal operations team to ensure trust and safety. 1. User Roles & Permissions • Carrier (Transporter): Registration requires Company Name, MC/DOT#, and document uploads (Cargo Insurance, W-9, ID). Account is "Locked" by default and cannot view load details until manually verified. • Shipper / Broker: Can post, edit, and manage vehicle listings. • Admin (Internal Team): Private dashboard to manage users and verify credentials. 2. Manual Verification Module (High Priority) • Pending Queue: A re...

    €64 Average bid
    €64 Oferta promedio
    81 ofertas
    Build Data Ingestion Pipeline
    1 hora left
    Verificado

    Senior Data Pipeline / ETL Engineer (FastAPI, PostgreSQL, OpenSearch) – Build MVP Data Ingestion Pipeline for Financial Intelligence Platform Overview We are building a financial intelligence infrastructure platform that aggregates global corporate registries, sanctions lists, and ownership data to produce compliance-grade investigative reports. The GitHub repository, architecture documentation, and core backend services already exist. What we need now is a senior data pipeline engineer who can complete the data ingestion and normalization pipeline so that our MVP feature works perfectly. The primary MVP workflow is: Search a person or company → resolve the entity → check sanctions exposure → reconstruct ownership relationships → produce an evidence-backed re...

    €433 Average bid
    €433 Oferta promedio
    141 ofertas

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