Desarrollo Backend Jobs

Busco desarrollar un sitio web en el que los usuarios puedan subastar artículos físicos de manera simple y segura. La experiencia debe cubrir todo el ciclo: publicación del lote, puja en tiempo real y cierre automático cuando termine el conteo. Funcionalidades imprescindibles • Registro flexible: alta con correo electrónico, redes sociales o número de teléfono. • Pasarela de pago integrada que retenga los fondos del ganador hasta que el vendedor confirme el envío. • Mensajería interna comprador-vendedor para negociar detalles sin salir de la plataforma. • Notificaciones automáticas (correo, push o SMS) en cada etapa: nueva puja, sobrepuja, adjudicación y confirmación de pago. ...

Busco ayuda para crear un SaaS que crea sitios WordPress sobre una red Multisite de forma completamente automática. Cómo funciona • Un único formulario inicial recoge detalles del negocio y preferencias de diseño del cliente. • Tres agentes IA conversan con el usuario para afinar cada área: – SEO : solo necesita realizar análisis de palabras clave y, además, integrarse con una fuente de datos para mostrar tráfico de búsqueda. – Contenidos : gestiona los textos del sitio y las imágenes/multimedia. – Apariencia : valida la coherencia visual a partir de las preferencias indicadas. • El motor inyecta esos datos en plantillas y plugins que ya incluyen placeholders predefini...

Finalizar sistema WhatsApp Business API (Meta) + n8n + panel de control (proyecto avanzado) Estado actual del proyecto (leer primero) El proyecto ya cuenta con una base creada: VPS configurado n8n instalado Firebase creado Hosting y dominio activos Parte del sistema ya desarrollada Importante: El sistema actual puede tener errores, estar incompleto o mal estructurado. El freelancer seleccionado debe: Revisar lo existente Corregir lo necesario O rehacer parcial o totalmente si es más rápido y eficiente Puede usar la tecnología que prefiera, siempre que: Cumpla con los objetivos Sea funcional Se entregue dentro del tiempo Objetivo del proyecto Finalizar un sistema de automatización de atención y ventas por WhatsApp para una empresa de calzado. El sistema de...

Se busca un desarrollador para crear una plataforma web innovadora que soporte un modelo de coworking multifuncional orientado a servicios. El objetivo principal es establecer un ecosistema digital donde diversos profesionales independientes puedan ofrecer sus servicios, gestionar sus citas y conectar fácilmente con sus clientes. La plataforma debe permitir a profesionales como barberos, estilistas, lashistas, manicuristas, pedicuristas, masajistas, y otros proveedores de servicios de belleza, así como profesores de clases particulares (ej. Inglés, regularización académica) y profesionales que operen desde un espacio de escritorio o cabina, tener una presencia digital robusta. Esto incluye la creación de perfiles profesionales, la publicació...

I’m creating Shakke shakks, a focused social networking site where members of niche or hobby‐based communities can connect without the clutter of mainstream platforms. The very first release must centre on a smooth, real-time messaging experience—one-to-one and small group chat—because conversation is the heartbeat of these interest circles. Here’s what I need from you: • A fully functional, responsive web application that lets users register, create a profile stub, search or invite others, and exchange messages instantly. • A lightweight, intuitive UI that keeps the spotlight on chat rather than endless feeds. • A scalable back-end (tech stack is flexible) that supports WebSocket-style real-time delivery, secure authentication, and basic modera...

**Project Title:** Mobile Game Platform (MVP with 1 Simple Multiplayer Game) --- **Project Overview:** We are building a scalable mobile game platform that will host multiple casual games (similar to a game café concept). Players will have a single account, shared progression (XP), and will be able to access different games from one place. For the MVP, the goal is to keep things simple, cost-efficient, and scalable. --- **Phase 0 (MVP Scope):** We want to start with: • One simple multiplayer game (preferably Ludo or similar) • User account system (login + basic player profile) • Basic XP system (shared progression concept for future games) • Simple UI (home screen + game entry) • Clean and scalable architecture (important for future expansion) --- ...

Preciso que você desenvolva, do zero, um aplicativo mobile (Android e iOS) para venda de serviços e produtos, cobrindo tanto o Frontend quanto o Backend. Quero uma interface moderna e limpa, capaz de conduzir o usuário desde o cadastro até a finalização da compra sem fricção. Funcionalidades essenciais • Autenticação: e-mail/senha, recuperação de senha e token de sessão seguro. • Catálogo de produtos e serviços com filtros, busca e página de detalhe. • Checkout integrado a cartões de crédito/débito e Pix, com confirmação em tempo real. • Chat interno entre comprador e vendedor suportando mensagens de texto e de voz....

I’m ready to commission the very first playable version of Murlan Live, a cross-platform mobile card game that feels as familiar as a traditional card table yet runs flawlessly on both iOS and Android. The goal is a rock-solid MVP that proves the core mechanic, handles turns smoothly, and lets two or four players finish a match without hiccups. Scope of the MVP • Real-time multiplayer with quick matchmaking as the cornerstone • Two modes: 1 vs 1 and 2 vs 2 • Social-media login plus an optional guest entry for instant play • Lightweight token and score tracking, clear winner logic, and a basic results screen • Simple, clean UI that mirrors classic card-game layouts—no flashy animations needed yet • Basic reconnection flow so a momentary d...

Preciso de um(a) desenvolvedor(a) que assuma todo o ciclo de construção de dois sites — cada um deles deverá ser publicado também como aplicativo mobile (Android e iOS). Quero acompanhar o processo em tempo real por videoconferência ou live-coding para sugerir ideias e compreender os comandos principais, portanto disponibilidade para sessões ao vivo faz parte do trabalho. Escopo técnico • Front-end: layout responsivo, navegação clara e performance otimizada. • Back-end: APIs seguras, bancos de dados estruturados e escaláveis. • Infraestrutura: configuração de servidores, domínio, certificado SSL, CI/CD e monitoramento básico. • Lançamento: publicaç...

We are looking for an experienced developer/team to build a custom Affiliate Marketing System for our SaaS e-commerce platform. The system should allow affiliates to generate referral links, track their performance, and earn commissions based on successful subscriptions. Key Features: - Affiliate dashboard (signup/login, referral link generation, stats) - Referral tracking integrated with existing signup page - Track clicks, signups, and paid subscriptions - Commission system (percentage or fixed) - Admin dashboard to manage affiliates and commissions Tech Stack: - Frontend: React / - Backend: PHP Laravel - Database: MySQL - Authentication: JWT or token-based Requirements: - Clean, scalable code - Simple and effective system - UI matching our platform design Deliverables: - Full syst...

Title: Full Stack Developer Needed for Author Website with E-Commerce, Digital Library & Admin Dashboard (Custom VPS Build) Description: I am looking for an experienced full stack developer to build a custom author website on my own VPS server. This is not a simple website. It includes a full e-commerce system, a digital library for users, and a complete admin dashboard. The final system must be easy to manage so I can add products, content, and users myself after delivery. Project Scope: 1. Frontend Website - Home page (author introduction + featured books) - About page - Press page - Story/Storyboard section - Modern, clean, responsive design 2. E-Commerce System - Physical products (books, merchandise) - Digital products (e-books) - Cart & checkout - Payment integration ...

I need a WhatsApp-based booking system for Apex Rescue. The system should: 1. Collect customer details through WhatsApp: - service type - pickup location - drop-off location - vehicle registration - running or non-runner - optional photo - customer name - customer phone number 2. Automatically calculate an estimated quote using pricing rules: - base fee - mileage fee - non-runner surcharge - optional extra charges etc 3. Save each lead into a dashboard for admin/driver review. 4. Let the driver/admin: - confirm the estimate - adjust the quote - reject the job 5. Send the final quote back to the customer on WhatsApp. 6. If the customer replies BOOK, generate and send a Stripe deposit payment link. 7. When deposit is paid, mark the job as confirmed and send a booking confirmation and...

I’m ready to launch an end-to-end digital platform that lets clients request service-based consultations and receive my response as a concise set of bullet-point assessments—no live video, audio, or chat sessions required. Here’s the experience I’m after: a visitor lands on a clean, responsive website or opens the companion iOS/Android app, creates an account, fills out a guided form, pays (if we decide to add payments later), and then gets notified when their personalised bullet-point report is ready. From my side I need an admin console where I can review each request, draft the assessment, and publish it with a single click. Key build requirements • Unified back-end powering both the website and mobile apps. • Secure sign-up/login, profile man...

I need an experienced next js and backend developer to iron out a handful of issues inside my résumé builder solutoon The most urgent blocker is registration: the OTP never reaches the user, so the Firebase phone-auth flow stops before verification even begins. Once that is reliable I can move on to polishing the core résumé screen. Users must be able to open an existing résumé and freely edit its current sections; no adding or deleting is required, just clean in-place edits. While you are in that view, please standardise typography—style, size and colour—so every heading, sub-heading and body line looks consistent across devices. Page-break logic also needs attention; long résumés should split predictably rather than ...

I’m ready to get a job board online fast, so I need a fully-developed PHP & MySQL script that I can drop onto my server, run the installer, and start accepting employer listings right away. The front end should feel modern and minimalist on both desktop and mobile, with secure user authentication already wired in. Core functions must include: employers creating and managing postings, candidates submitting applications, and an admin section that gives me clear summaries of how many jobs are live and how many applications each has received. A responsive layout is essential, and I don’t want to spend time tweaking breakpoints—please have that sorted. On top of the basics, I also want three extras baked in from the start: • a simple resume builder so candidates c...

We are looking for an experienced developer or team to help us set up and integrate a WeChat Official Account (Corporate/Service Account) and connect it with our internal systems. The main goals: 1. Successfully create and verify a WeChat Official Account 2. Enable a web-based interface (similar to WhatsApp Web) for message handling 3. Integrate WeChat messaging into our Odoo CRM system ⸻ Current Situation / Problems • We do not currently have a properly verified WeChat Official Account • We are facing difficulties with: • Account registration (Chinese requirements, verification, etc.) • Accessing or building a web interface for message management • We need a scalable solution for customer communication (mainly Chinese market) ⸻ Scope of Work 1. WeCha...

Saya ingin membangun sebuah platform pasar yang mampu bersaing di kancah internasional. Platform ini harus hadir sebagai website responsif sekaligus aplikasi mobile native (iOS dan Android) agar pengguna dapat bertransaksi di mana pun. Target utama saya adalah perusahaan besar, sehingga performa, keamanan, dan skalabilitas harus berada di level enterprise. Fitur inti yang wajib tersedia: • Pencarian produk yang cepat dan akurat—lengkap dengan filter kategori, harga, dan popularitas, serta tampilan hasil real-time berisi gambar, harga, dan status stok. Selain itu, saya membutuhkan: • Arsitektur back-end yang mudah diperluas untuk modul pembayaran online dan ulasan pengguna di tahap berikutnya. • Dashboard admin terintegrasi untuk manajemen produk, pengguna, da...

Tender is the SaaS platform I’m bringing to market to simplify government-tender discovery and bid consultancy across India. The public-facing site must be a modern, fully responsive React / application with a premium dashboard experience. Core screens include a live tender feed, rich search with filters (state, department, category, budget, closing date), and dedicated areas for both suppliers and contractors. Clicking a listing should open the official government portal in a new tab, while users can also preview or download the attached documents directly inside the app. Account management will cover signup, login and paid access. I plan to monetise through Razorpay subscription plans, so the paywall, webhook handling, invoices and graceful downgrade/upgrade flows all need wiring...

I need an end-to-end Android application, plus a web-based admin panel, that serves two clear purposes for users in Tamil Nadu. First, it must act as a mini job-marketplace for drivers. Within this space users should be able to browse live job listings, apply directly from the phone, and receive real-time job alerts pushed to their device. Second, the same app should double as a travel companion. Travellers have to plan routes, book trips (seats, cabs, or packaged tours), and read a concise guide to nearby local attractions—all without leaving the app. Authentication is OTP-based: a phone number is entered, an SMS code is sent, and the user is in. No email or social logins are required. From the admin panel I want to: • post, edit, or remove driver jobs • re...

I’m putting together a new web application and want one experienced pair of hands to own it end-to-end. The stack is set: React with on the frontend, Python on the backend using Django or the Django REST Framework for the API layer. You’ll start by helping me pin down a clean component architecture in React, then wire it to a Django REST API that you’ll also design and code. Expect to handle routing (), state management, authentication, database modelling, and the usual testing and CI touches so we can deploy with confidence. Once the core features are in place, I’d like performance tuned, edge cases covered with unit and integration tests, and a straightforward deployment pipeline—Docker or something equally solid—so code moves smoothly from repo...

I’m scheduling one-hour, real-time coding sessions every night from 10 pm to 11 pm EST so I can build small, end-to-end features while you guide me step-by-step. My goal is to strengthen fundamentals in both and React.js; at the moment I’m a complete beginner in each, so clear explanations and patient pacing are essential. During each call we will share a screen, discuss a concise problem, and code the solution together—nothing pre-recorded. Think along the lines of spinning up a simple Express API, wiring it to a lightweight React front end, then gradually layering concepts such as routing, state management, and basic CRUD. By the end of every session I want a working mini-project committed to a GitHub repo plus a short recap of what we covered. I work best when: &bu...

Enhance Existing Fundraiser App The Fundraiser App (Mobile responsive and Android/iOS) helps schools, alumni, and groups worldwide raise money quickly and easily. Users can create personalized fundraising campaigns and accept donations effortlessly. The application is completed, but a few things are outstanding. The Android shares the same code base with IOS About the project The Cron jobs, which we term "AI feature," basically keep the process and participants engaged throughout the fundraising effort by: Reminding those who registered and have yet to donate Reminding the admin who created a group fundraising account but has yet to launch Basically, it's a feature that checks activity status and reminds them via mobile notifications and email. This feature is not co...

**Project Title:** Mobile Game Platform (Uno, Ludo + Mini Puzzle Game) --- **Project Overview:** We are building a scalable mobile game platform that combines casual multiplayer games with a mini puzzle system to improve player retention and engagement. The goal is to create a long-term gaming platform where players can enjoy both competitive multiplayer and single-player progression. --- **Initial Games (MVP):** * Uno (multiplayer) * Ludo (multiplayer) * Mini Puzzle Game (simple level-based game) Future expansions will include games like Tarneeb, Estimation, Billiards, etc. --- **Core Features:** * User account system (login/signup) * Shared player profile across all games * Online multiplayer (rooms or matchmaking) * Basic offline mode (AI if possible) * Shared XP system acros...

I am looking for a high-level Technical Lead to design and implement a complex AI infrastructure. This is for an enterprise-grade system that needs to be scalable, robust, and cost-efficient. ​The Technical Requirements: ​Tiered Graph Architecture: You must implement intelligent routing logic that switches between 'Small' models (for speed/cost) and 'Frontier' models (for complex reasoning) based on task classification. ​Persistent Multi-Agent Memory: The system requires multiple AI agents to collaborate and share a global state. All memory and agent findings must be persisted in a PostgreSQL database (not session-based). ​Token Telemetry: Real-time token tracking and cost monitoring per execution route/task. ​The Stack: Vercel (Node.js), Postgres, Stripe, and SMTP. The...

I am extending my AzuraCast installation and need a developer who already speaks the language of radio clocks. Your task is to create a fully-functional “clock wheel” module that slots seamlessly into AzuraCast’s existing interface and Docker stack. You must have background experience with radio stations and radio software and either have created a clock wheel in past or set one up before. having worked with liquid soap and icecast shoutcast streaming is a plus. Having ai say you have experience for you ain't always true. please use ur own words when saying u have radio experience. i prefer clockwheel page and events scheduler. I want the same built for AzuraCast. I prefer form based UI over drag and drop. You can build this feature directly into azura cast mai...

We are looking for a developer to make improvements to our existing Qbank (question bank) admin panel and backend system made in react, node js and mongodb. Project Scope: Rich Text Support for Options: Currently, our question and explanation fields already use a rich text editor. We need to extend the same functionality to the answer options (A, B, C, D). The solution should support formatting such as tables, bold text, images, and basic styling. Ensure proper rendering of formatted content on the frontend. Video Feature Integration: Add support for video content in questions. Preferred approach: allow embedding via video URL (YouTube/Vimeo or similar). Optional: simple video upload feature if feasible within budget. Display videos properly in the frontend question view. Requi...

I need a web-based donation platform aimed at individual donors. At its core the app must let visitors register, create a personal profile, make a contribution seamlessly, and then return any time to view a clear history of everything they have given. Key features I must see working end-to-end: • Secure payment processing that supports major cards and wallets, with clear error handling and confirmation receipts. • Persistent user profiles so donors can log in, edit details, and store preferred payment methods. • Real-time donation tracking: each gift shows up instantly in the user’s dashboard and in an admin view for reconciliation. A clean, mobile-first interface is important, and I expect common security best practices (HTTPS, hashed passwords, CSRF protectio...

I need a complete website designed and built for my manufacturing business that produces and supplies roughly 100,000 distinct mechanical components. The core of the site is a large product database, so performance and usability are critical. Scope of work • Design a modern, sleek, fully responsive interface that feels effortless on desktop, tablet and mobile. • Build a back-end structure capable of storing and serving about one hundred thousand SKUs without lag. A relational database is fine if it scales well; if you prefer NoSQL or a hybrid approach, explain your reasoning. • Implement advanced search and filtering so visitors can pinpoint parts by dimensions, material, tolerance, finish, or any other attribute we load. • Provide detailed product categorizati...

The goal is to launch a real-time audio and video chat application, similar in feel to SUGO or Chamet, built with Flutter so the same codebase reaches both iOS and Android users. Key modules I need delivered are: • Live audio/video chat rooms that stay smooth even with heavy traffic • User profile system with avatar, bio, and basic social features • In-app coin wallet, purchase flow, and virtual gifting logic • Web-based admin panel to review content, manage users, and view analytics • Host management dashboard for vetting hosts, setting rates, and tracking performance Please base your architecture on Flutter with a scalable backend of your choice; feel free to suggest what you know will handle streaming loads efficiently. All source code, build scr...

The project is to create a full-featured Muslim matrimony mobile application that runs smoothly on both iOS and Android. The core objective is a clean, intuitive user experience that makes it easy for Muslims to discover compatible matches while maintaining privacy and authenticity throughout the process. Scope of work • Build native (or well-optimised cross-platform) apps that launch from a single codebase yet feel at home on each platform. • Implement secure account creation with phone or email verification, profile setup, and a modern matchmaking flow. • Enable real-time chat so matches can converse safely inside the app, with the necessary moderation hooks in place. • Design a scalable backend (Firebase, Node, or similar) that handles user data, media uploa...

We’re working on an accounting platform and are currently looking for a freelance Tally developer/consultant to help us with integration work. We’ve reached a stage where we need someone who understands Tally deeply and can help us connect it properly with our system — especially around syncing data and handling accounting logic correctly. What you’ll be working on: -Integrating Tally with our web platform -Handling data sync between Tally and our system -Mapping ledgers, vouchers, and financial data accurately -Working on TDL for required customizations -Debugging and fixing integration issues -Coordinating with our backend team where needed -Supporting reconciliation and validation logic What we’re looking for: -Solid experience wit...

I need a skilled developer to create a social networking application for both iOS and Android platforms. The application should facilitate user interaction and content sharing. Essential features include: - User profiles - Messaging system - News feed Payment getaway Ideal skills and experience: - Proven experience in developing social networking apps - Expertise in cross-platform mobile app development - Strong UI/UX design skills - Familiarity with backend technologies to support real-time messaging and content updates Please provide examples of similar projects you've completed.

Ich möchte eine mobile App entwickeln lassen, mit der Stadttaubenvereine ihre betreuten und neue bekannte Brutplätze unkompliziert registrieren können .Herzstück der Anwendung ist die QR-Registrierung: Jede Eiertauschstelle erhält einen QR-Code, der sowohl Standortdetails als auch Daten der letzten Tauschvorgänge enthält. Nach dem Scannen soll die App den Fund oder Tauschvorgang sofort in einer zentralen Datenbank speichern. Wichtige Funktionen • Öffentliche Standortmarkierungen auf einer interaktiven Karte – Nutzer sehen sofort, wo aktuell getauscht oder abgeholt werden kann. • QR-Erfassung inklusive automatischer Validierung und Speicherung der beiden Datensätze (Standort + Tausch-Information). • Ergebnis- u...

我想要一套专注后台管理的电商程序，首要目标是让运营人员能够轻松完成用户管理工作。核心需求如下： • 用户管理：实现用户资料的增删改查、分组与权限控制，支持批量导入导出以及基本的搜索筛选。 • 预留客户端接口：程序需提供规范化的 RESTful API，便于我后续接入不同客户端。 我更倾向于使用主流的 Web 技术栈，代码结构清晰、注释完善，数据库设计满足扩展性。请在交付时提供： 1. 完整源代码与依赖清单 2. 数据库脚本或迁移文件 3. 部署说明（本地与生产环境） 4. 简短的操作手册 如有成熟的用户权限模块或后台模板可复用，也欢迎提出。希望你在开始前概述技术方案与开发周期，让我们快速进入实施阶段。

Live System Current Stage The platform is already built and running in production, with: Laravel backend (MySQL + Redis) Payment integrations implemented (partially functional) Token system in place Admin panel available Frontend completed However, based on the attached audit reports, the system is: Structurally complete, but not fully functional Some modules are partially implemented Some flows do not work correctly in real production The reports clearly identify issues such as: Incomplete financial logic (ledger inconsistencies) Escrow lifecycle not fully implemented Subscription logic incomplete Boost system not working correctly Security gaps in admin/financial routes Project Objective The goal is straightforward: Make the existing system fully functional, stable, optimized,...

I want a web based application suite which can be use to manage multiple test centre. The component are 1. Web base appointment scheduling system for all centre 2. A Registration application 3. A Test Monitoring system 4. A Reporting System 5. Webservice to interface with other system This need to link to a web based appointment management application so user can prefix the slot seeing the availability. I want a web based application which allows for user registartion where we capture face and other details and after that the user undertake some tests where IOT devices send data and which need to be correlated to user with date time. The system need a sensor IOT application also that listens to live sensor data arriving over MQTT (a raw TCP socket fallback is acceptable), stores ...

I want to turn my existing educational videos, interactive exercises, and text-based lessons into a fully functional, child-friendly learning management system that runs entirely in the browser. Students and teachers will each have their own accounts so progress tracking, assignment creation, and basic messaging are all possible within the same interface. The core of the job is to design and code the web platform, import my current materials, and give me an admin dashboard where I can upload new content, manage classes, and monitor student performance without touching code. The look and feel must stay playful and intuitive for young learners while remaining responsive on tablets and laptops. Please build with a mainstream framework you’re comfortable maintaining long term (Laravel,...

# AI-Based Football Pitch Video Analytics System – Freelancer Project Brief ## Project Overview We are looking for a freelancer or team to develop an AI-powered computer vision and player performance analysis system for indoor football / mini football pitches. The system will be used in multiple football pitch locations across Türkiye. The software must: * Track every player during the match * Analyze player and team performance * Automatically generate statistics and ratings * Upload the match analysis to a website shortly after the match ends A complete hardware setup is already available for the first pitch: * 6 cameras installed * 1 high-performance PC * NVIDIA RTX 5080 GPU * Remote access via Tailscale is already configured The first implementation will be done on t...

Senior .NET (C#) Developer with WEBRTC and HLS Live Streaming Experience (Freelance) We are building a live streaming and creator engagement platform. The platform allows creators to: go live (public broadcast using HLS) host private 1-to-1 sessions (WebRTC) host group sessions (WebRTC) interact with users via chat(SignalR) receive tips and payments We are looking for an experienced developer who can build scalable live streaming infrastructure using HLS for broadcast and WebRTC for private sessions. Key Responsibilities Develop backend APIs using ASP.NET Core (.NET) Implement HLS-based live streaming pipeline for public broadcasts Integrate video pipeline (FFmpeg / RTMP ingest → HLS output) Work with streaming servers/CDN (NGINX RTMP, AWS Media Services, or similar) Implement We...

I need an experienced developer to wire Meta’s official WhatsApp Cloud API into our existing CRM so that chats, documents and status updates flow both ways without manual effort. Here is what I expect when the job is complete: • Two-way webhook: every incoming WhatsApp message (text, media, document) is captured instantly and written to the matching contact record inside the CRM. • Event-based automation: the system must fire outbound WhatsApp messages whenever a lead status changes, a booking status updates, a new customer registers, or we trigger a reminder. I should be able to add more events later through simple configuration, not code. • Document push: quotations and invoices generated in the CRM must be sent directly to the client on WhatsApp in the correct...

Panchang Website Developer Needed (Swiss Ephemeris | No API) Job Overview We are looking for an experienced developer to build a Panchang (Hindu Calendar) website from scratch, using Swiss Ephemeris for accurate astronomical calculations. Important: This project must be built without using any external Panchang APIs. All calculations should be done internally. Project Goal To develop a highly accurate, fast, and scalable Panchang system that generates daily Panchang details based on location and date. Key Responsibilities Panchang Calculation Engine Implement Panchang logic using Swiss Ephemeris Handle: Latitude / Longitude Time zones (IST + scalable for other regions) Generate Daily Panchang Data System should calculate and display: Tithi Nakshatra Yoga Karana Sunrise & Sunset Mo...

We brought in this developer to debug a production RAG pipeline that had quietly degraded after a dependency bump. The pipeline — built on LangChain, FastAPI, and Supabase pgvector — was still returning results, but retrieval quality had clearly dropped: wrong chunks, wrong document sections, irrelevant context making it into answers. The scope was well-defined: audit our chunking config, confirm embedding model consistency between ingestion and query time, check our pgvector distance/index setup, and run live test queries to surface exactly where retrieval was going wrong. He delivered on every point. The root cause turned out to be a silent embedding model mismatch introduced during a langchain-openai upgrade — something easy to miss and painful to debug without knowin...

Cześć, szukam osoby do stworzenia prostego prototypu urządzenia safety (IoT) dla pracowników pracujących na wysokości (np. turbiny wiatrowe). Chodzi o szybkie MVP, nie finalny produkt. Zakres projektu: 1. Hardware (ESP32): - odczyt danych z akcelerometru (wykrywanie ruchu / brak ruchu) - integracja GPS (NEO-6M lub podobny) - obsługa przycisku SOS - wysyłanie danych przez Bluetooth lub WiFi 2. Logika: - wykrycie braku ruchu przez określony czas (np. 2–3 min) - wysłanie alertu (status + lokalizacja) 3. Prosty backend / komunikacja: - może być Firebase lub coś podobnego 4. (opcjonalnie) prosta aplikacja / dashboard: - mapa (lokalizacja) - status: OK / brak ruchu / SOS Cel: Chcę mieć działający prototyp do testów z firmą (demo), nie potrzebuję jeszcze perfekcyjneg...

Project Title: Build MVP for Real Estate Investment Platform (Bunyan) Description: I want to build an MVP for a platform called “Bunyan” that connects real estate developers with investors. The platform focuses on funding real estate projects and managing the relationship between developer and investor during the construction phase. Core Features: * User roles: Investor / Developer / Admin * Developers can list real estate projects (with details, cost, timeline) * Investors can view and invest in projects (simulation is fine for MVP) * Milestone-based project tracking (construction stages) * Dashboard for investors (investment amount, progress, expected return) * Dashboard for developers (funding status, project updates) * Admin panel to monitor and control all activities ...

I need someone experienced with Twilio WhatsApp. I already have a working script that sends alerts. I only need to adjust the message text (wording + format). No other changes — everything else must stay the same. ⚡ This job is for right now. If you cannot start immediately, please do not apply. I’ll give access and test live together.

We are building a platform focused on gaming, prediction systems, and decentralized infrastructure. We are looking for an experienced developer who can take a leading role in system architecture and core development. Scope of work: - Design and develop backend systems - Build and integrate smart contracts - Contribute to overall system architecture - Ensure scalability, security, and performance Requirements: - Strong experience in backend or fullstack development - Experience with Web3 / blockchain technologies - Experience with smart contract development (e.g. Solidity) - Familiarity with distributed systems - Ability to work independently and take ownership - World wide location developers(except India, Pakistan, Bangladesh, Africa: will skip developers on these locations) Nice to h...

Looking for App Developer (AI Girlfriend App - Phase 1) We are building an AI Girlfriend / AI Companion App focused on emotional chat experience (Hindi + English). Currently hiring a freelance developer/team for Phase 1 (MVP). Scope (App Only - Phase 1) We need a **mobile app (Android/iOS)** with the following core features: 1. AI Chat System * Real-time chat interface * Persona-based replies (Romantic, Friendly, Bold, etc.) * Short, human-like responses 2. Voice Chat * Voice input (speech-to-text) * AI voice response (text-to-speech) * Smooth conversation flow 3. Image Generator * AI-generated images based on user prompts * Fast generation + in-app display Tech Expectations * Flutter / React Native (preferred) * Backend + API integration (LLM, Voice, Image AI) * Clean UI/UX ...

Je cherche un développeur capable de créer une application web optimisée pour Android. L’objectif est d’offrir aux utilisateurs Android une expérience fluide, accessible directement depuis leur navigateur, avec la possibilité d’ajouter l’application à l’écran d’accueil comme une PWA. Voici ce dont j’ai besoin : • Conception de l’architecture front-end et back-end adaptée aux contraintes mobiles. • Interface responsive qui s’adapte à toutes les tailles d’écran Android. • Fonctionnalités hors-ligne de base et notifications push si possible. • Tests sur différents appareils Android pour garantir performance et compatibilit...

I’m building a mobile application that lets two users connect over a live video call on Android. The goal is a smooth, low-latency experience that feels as immediate as a phone call, only with video. Here’s the flow I have in mind: a user logs in, selects a contact, hits “Call,” and the peer instantly receives an incoming-call screen. Once connected, both parties can mute audio, switch cameras, or end the session. The call must automatically adapt to changing network conditions and recover gracefully from brief drops. WebRTC is my preferred technology stack, but if you can justify another approach with equal or better quality and device support, I’m open to it. Please leverage native Android (Kotlin/Java) rather than a cross-platform wrapper; I want full...

Saya sedang mengerjakan aplikasi Python berbasis Flask dan membutuhkan panduan praktis agar proses coding berjalan lebih cepat dan rapi. Fokusnya hanya pada integrasi database: • Menyiapkan koneksi dan konfigurasi awal (SQLAlchemy atau solusi lain yang Anda rekomendasikan). • Merancang skema tabel sederhana, migration, serta relasi dasar. • Membuat contoh CRUD yang bersih dan mudah diperluas. • Memberi tips performa dan keamanan dasar agar query tetap efisien. Saya sudah familiar dengan Python dan Flask, namun butuh pendampingan singkat—bisa melalui sesi screen-sharing atau contoh kode terkomentar—hingga fungsi database berjalan stabil di proyek saya. Jika Anda berpengalaman memakai Flask untuk integrasi database, saya menantikan bantuan ringkas d...