The ultimate guide to hiring a web developer in 2021
If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
REST APIs are the interface between clients and servers that allows for data to be shared across platforms, providing a seamless connection between applications, databases, and other resources. A REST API Developer is the programmer who helps clients connect their applications to a certain platform and ensure data is flowing between the two in an efficient, secure manner. This can help to reduce friction, improve performance & scalability, boost security, streamline website navigation, and more.
REST API Developers build and maintain custom programming to enable automated data retrieval and communication with a client’s desired application or platform. This can encompass services such as quickly integrating third-party payment systems into an existing website, minimizing manual work and improving customer experience. They may also incorporate priority systems; for example creating different APIs for handling bulk vs single requests for heavy workloads. Ultimately a REST API Developer helps clients bridge the gap between complex platforms and transform data into valuable business insights.
Here’s some projects that our expert REST API Developers made real:
Our highly-skilled REST API Developers are experts when it comes to stitching together the critical links which connect disparate platforms together. With years of experience they have been able to tackle innumerable projects which have led to successful outcomes for our clients. If you have an issue related to connecting your application with another platform or require automated data retrieval services then you can post your own project here on Freelancer.com and hire one of our experienced developers today!
De 45,096 opiniones, los clientes califican nuestro REST API Developers 4.91 de un total de 5 estrellas.REST APIs are the interface between clients and servers that allows for data to be shared across platforms, providing a seamless connection between applications, databases, and other resources. A REST API Developer is the programmer who helps clients connect their applications to a certain platform and ensure data is flowing between the two in an efficient, secure manner. This can help to reduce friction, improve performance & scalability, boost security, streamline website navigation, and more.
REST API Developers build and maintain custom programming to enable automated data retrieval and communication with a client’s desired application or platform. This can encompass services such as quickly integrating third-party payment systems into an existing website, minimizing manual work and improving customer experience. They may also incorporate priority systems; for example creating different APIs for handling bulk vs single requests for heavy workloads. Ultimately a REST API Developer helps clients bridge the gap between complex platforms and transform data into valuable business insights.
Here’s some projects that our expert REST API Developers made real:
Our highly-skilled REST API Developers are experts when it comes to stitching together the critical links which connect disparate platforms together. With years of experience they have been able to tackle innumerable projects which have led to successful outcomes for our clients. If you have an issue related to connecting your application with another platform or require automated data retrieval services then you can post your own project here on Freelancer.com and hire one of our experienced developers today!
De 45,096 opiniones, los clientes califican nuestro REST API Developers 4.91 de un total de 5 estrellas.I’m looking for a senior Odoo developer (Python + XML + JS/OWL), preferably based in Quito, to finalize and integrate a custom production dashboards module in Odoo v16 Enterprise. Goal: Implement 8 dashboards inside Odoo, one per production-process area (operational and management views), including KPI cards, charts (bar/line/donut), tables, and filters — all powered by real data consumed from read-only REST API views. Stack / Data source: OData-style REST endpoints ($filter, $select, $orderby, $top, pagination). Each KPI/chart must be integrated with its corresponding endpoint, with robust handling of auth/token, timeouts, retries, parameter validation, no-data states, and controlled logging. Design/UI: Interfaces are already prepared in Visily → Figma → Odoo. The...
Quiero administrar desde mi panel de WordPress toda la operación que actualmente manejo en los marketplaces Riplay y Saga Falabella. El objetivo es una sincronización bidireccional completa entre ambas APIs y WooCommerce para que: • Inventarios se actualicen en tiempo real. • Pedidos fluyan en doble sentido: cuando entren en los marketplaces aparezcan como órdenes de WooCommerce y, si genero ventas propias, se reporten a Riplay y Saga. • Precios y cualquier otro dato comercial (SKU, status, descuentos) se mantengan coherentes en los tres sistemas. Busco una solución sólida que se instale como plugin o módulo personalizado, con: 1. Configuración sencilla de credenciales API y mapeo de campos. 2. Tareas programadas o we...
I am looking for a small, rock-solid web application to be used during karate kata competitions. The system must allow up to 7 judges to submit a verdict (RED or BLUE) and instantly push each vote to a central Tatami Controller screen. Roles 1) Tatami Controller (Main Screen) The only protected role (login or admin PIN required) Create/open a session Start a voting round See live connection status of judges Receive votes in real time Manually lock/close voting (with optional auto-close when all 7 votes are received) Display: Individual judge votes Total RED votes Total BLUE votes Highlight winner clearly Reset for next match without losing system stability 2) Judges No accounts required Join via QR code or short session code Assigned to a unique judge slot (1–7) See only two large...
I’m expanding an in–house mobile application that lets users register, track, and manage their physical payment cards from one place. The codebase is already in Flutter, and I want to keep the momentum going with a senior-level developer who is comfortable applying Clean Architecture and true Domain-Driven Design principles. What you’ll be diving into • A cross-platform Flutter project that must compile flawlessly on both iOS and Android. • Refactoring existing modules to align with layered, testable architecture. • Building new card-management features (activation, balance fetch, transaction lists, in-app notifications). • Integrating secure REST/GraphQL APIs, local persistence, and state management (preferably Riverpod or Bloc). How we&rsqu...
We are an early-stage fintech startup based in Canada (RewardsX Loyalty Platform International Inc.) currently developing a mobile application using Flutter & Dart with a dedicated mobile team based in Chennai, India. We are looking for a reliable and practical Back-end Developer to support our Flutter/Dart team for a one-month contract. This is a part-time support role focused on API development, debugging, and backend integration rather than building a system from scratch. Our application ecosystem includes: Flutter & Dart Mobile App Node.js Backend (existing codebase) MongoDB and PostgreSQL databases MERN-based web modules (React) Google Cloud Platform (GCP) infrastructure The selected developer will work closely with our mobile team to ensure smooth API connectivity, ba...
PROJECT TITLE: Citizen Complaint & Political CRM Website Development (Mandawar) PROJECT DESCRIPTION: We need a full-stack web developer to build a citizen engagement and complaint management system for the town of Mandawar. The system will be integrated into our existing website (). The platform will include two main sections: 1. Citizen Portal 2. Admin Dashboard CITIZEN PORTAL REQUIREMENTS: - Mobile number login with OTP verification - Simple citizen profile form (Name, Ward, Address, WhatsApp Number) - Complaint submission form - Complaint status tracking - Optional image upload - SMS notification when complaint is resolved Complaint categories: - Sanitation - Water - Drainage - Street Light - Tax - Other ADMIN DASHBOARD REQUIREMENTS: - Citizen database management - Ward-wis...
I have opened a profile with Mastercard Payment Gateway Services and now need the REST API at wired into my system so the new merchant account is fully operational. The goal is straightforward: accept and manage both credit- and debit-card transactions directly through the gateway and expose the usual lifecycle calls—authorise, capture, refund and recurring—so my application can trigger them programmatically. Here is the exact scope I need covered: • Configure the account credentials and generate the live API keys inside the gateway. • Build the server-side integration using the official Mastercard Payment Gateway (MPGS) REST endpoints for – one-time payments, – scheduled / recurring payments, and – refund processing. • ...
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I’m ready to turn a set of detailed Figma screens and a fully documented REST/GraphQL API into a fast, elegant online store, and I’m looking for a React expert to own the front-end build. The work centres on creating a production-ready React code-base that: • renders the catalogue, product detail, cart and multi-step checkout flows • consumes our API endpoints via hooks, handles loading and error states gracefully, and keeps the UI responsive at all break-points • uses modern patterns (functional components, hooks, context or Redux for state, React Router for navigation) with clean, well-commented code • applies accessible, WCAG-friendly styling (CSS-in-JS, Tailwind or plain CSS modules—your choice) exactly as in Figma • integrates payment-gatewa...
Building a secure, clinic-centric portal on Salesforce Service Cloud is the immediate priority for this life-science programme. The work sits on an existing Service Cloud and Community Cloud foundation and must comply with strict healthcare security and audit requirements. Scope of work • Configure and customise Service Cloud and Experience (Community) Cloud to surface patient-facing and clinic-facing pages behind robust login policies. • Develop Apex-based REST services and call-outs that integrate directly with external health systems; bullet-proof error-handling frameworks are the non-negotiable focus. • Write triggers and service classes that respect Platform Encryption, Field Audit Trail and all CRUD/FLS checks. • Deliver unit tests with >90 % coverage,...
Job Title: Full Stack Developer – Angular 20+ & Spring Boot (Java 17) Experience:- 8+ years of experience in Full Stack Development Working Hours: 2 hours per day Budget: ₹24,000 per month Project Overview We are looking for a skilled Full Stack Developer to support ongoing development activities as part of the current sprint focused on AWS and Azure cloud migration. The candidate will be responsible for contributing to application development, enhancement, and migration-related tasks in a cloud-enabled environment. Key Technical Skills Frontend: Angular 20 Backend: Java 17 Framework: Spring Boot API Development: RESTful Web Services Database: MySQL, PostgreSQL, or equivalent relational databases Cloud Exposure: AWS and/or Azure (preferred) Version control using Git Roles &am...
Our SaaS platform is already live, but I want a seasoned React / and Node.js developer to give it a rigorous technical once-over so we can scale with confidence. The immediate focus is a full codebase and architectural review, making sure every module is clean, maintainable, and truly production-ready. Performance is the headline goal. Please profile and tune the areas that matter most to us: dashboard load time, API response time, and the heavier database queries that power our charts. I expect concrete, measurable gains—think quicker Time to First Byte, lower p95 latencies, and smoother UI interactions—without sacrificing code clarity. While you are in the weeds, scrutinise the onboarding flow that starts with a user’s API token and ends with an activated account. An...
We are looking for an experienced Flutter developer with strong knowledge in: REST APIs integration WebSocket (real-time communication) WebRTC Advanced JavaScript Injecting and managing JavaScript inside Flutter WebView Project Overview: Our project is built using Flutter and relies heavily on: Injecting custom JavaScript code into WebView Controlling and managing web content dynamically using JavaScript Handling communication between Flutter and JavaScript Real-time features using WebSocket WebRTC integration for live communication The ideal candidate should have: Strong experience with Flutter WebView (JavaScript channels, JS injection, callbacks) Good understanding of JavaScript execution inside WebView Experience managing two-way communication between Flutter and JS S...
We are building an Azure-native B2B SaaS solution and need an experienced Windchill API / integration specialist to help design the integration architecture and implement a lightweight proof-of-concept (POC). Scope includes: Windchill → SaaS data extraction: Extract Bills of Materials (BOMs), part metadata, revision history and related structures from Windchill Handle multi-level BOMs and parent–child relationships SaaS → Windchill data pushback (nice to have in POC, required in later phases): Push cost or other calculated data back into Windchill objects/attributes Integration architecture: Advise on best practices for integrating Windchill (on‑prem) with an Azure-native multi-tenant SaaS Recommend patterns for authentication, pagination, error handling, and versi...
My workbook already asks SerpApi for data the moment I type a model number in the “Model” sheet, and Power Query pushes the results into the “Result” sheet. Two nagging issues stop it from being production-ready: 1. The cache sheet that should store the API response has stopped working, so every look-up now triggers a new, slow call instead of re-using the last fetch. 2. On the “Result” sheet the sale price reaches the correct cell, but the regular (full) price column stays empty. I need someone who understands Power Query, Excel data model, and REST/API connections (SerpApi in particular) to: • Diagnose and restore the caching logic so the workbook re-uses previously fetched JSON. • Update the query/transform steps so the full price fi...
_______________________________________ Project Overview We want to build a real-time chat application similar to WhatsApp using React Native for mobile apps (Android and iOS) and Node.js for backend APIs and real-time communication. The app will allow users to register, chat one-to-one, create groups, send media, and receive notifications in real time. ________________________________________ Project Goals • Build a fast and scalable real-time chat app • Provide smooth and modern user experience • Ensure secure messaging system • Support large number of concurrent users • Make system scalable for future enhancements ________________________________________ User Roles User • Register and login • Manage profile • Send and receive messages • Creat...
I am a Software Developer with over 7 years of hands-on experience in Java and AWS services, and I am excited to begin my freelancing journey on Upwork. Throughout my professional career, I have designed, developed, and maintained scalable, secure, and high-performance applications while ensuring reliability and cost-efficient cloud operations. My expertise includes core Java development, Spring-based applications, REST APIs, AWS services such as Lambda, ECS, DynamoDB, S3, CloudWatch, and Infrastructure as Code using Terraform. I focus on writing clean, maintainable code, delivering production-ready solutions, and resolving issues quickly to keep systems stable and secure. As I start my freelancing career, I am fully committed to delivering high-quality work, meeting deadlines consistent...
We are building a platform that pulls information from multiple external APIs, processes and normalizes the data, and serves clean structured responses to our web and mobile applications. We also need lightweight SDKs (JavaScript + Python) so third-party developers can easily integrate with our API. What You'll Build REST API Server Node.js + Express backend with 10-15 endpoints Redis caching layer to manage rate limits and performance PostgreSQL database for user data and configurations WebSocket support for real-time data streaming Error handling with fallbacks (if one source is down, serve cached data) Deploy on with auto-deploy from GitHub JavaScript SDK npm package that wraps all API endpoints into clean one-liner methods Full documentation with examples Publish to npm Python...
Deployment + Development for RCS & Deployment for WhatsApp 1. SOW for deployment for RCS & WhatsApp This defines the requirements and scope of work for setting up, deploying, and scaling the CPaaS Dashboard. The system is a microservices architecture with PostgreSQL as the main database. Currently, the WhatsApp and RCS services have been built and integrated. Objectives & Outcome The objective is to engage a DevOps to configure infrastructure, databases, queues, monitoring, and deployment pipelines to ensure the CpaaS dashboard is production-ready, scalable. Post award of project you will be shared a Github Repo weekly or daily update to be pushed there only. The scope includes backend API development, database schema design, & webhook hooks. The service must be built a...
We are looking for a MERN specialist who can take full ownership of a production-grade web application. The immediate focus is on modelling a complex data structure: expect dense many-to-many relationships that demand rock-solid data integrity and expressive, lightning-fast queries in MongoDB. Beyond the database layer, you’ll be building and hardening REST endpoints in Express/Node, wiring in third-party services, and tying everything together with a clean React front-end. Firebase will handle authentication, real-time messaging, and push notifications, so any prior experience there is a plus. On the infrastructure side, you’ll manage Docker-based deployments to AWS or DigitalOcean, keep CI/CD pipelines humming, configure domains and SSL, and watch logs and uptime dashboa...
I’m creating a native iPhone shopping experience and need a developer who can take it from wireframes to TestFlight. The app must let customers browse a full product catalog, add items to a persistent shopping cart, and check out through a payment gateway that supports Apple Pay or Stripe. For sign-in, I only want social media options—Apple, Google, or Facebook—so users can start buying with a single tap. You’ll receive finalized UI designs plus backend REST/GraphQL endpoints; your role is to build the Swift/SwiftUI front end, integrate the APIs and payment SDKs, and make sure everything passes App Store review. Deliverables • Xcode project with clean, well-commented Swift code • Product catalog, cart, and checkout flows fully functional • Soc...
I want a complete, production-ready mobile application that runs smoothly on both iOS and Android. The core idea is a multi-resort booking platform wrapped inside a binary MLM structure: every user can reserve rooms across several partner resorts while simultaneously building a two-leg network that earns commissions from each down-line booking. Key elements to build • Resort booking engine – real-time room availability, multi-resort catalog, date/guest selectors, pricing rules and in-app payments. • Multiple bookings per user – one account may hold overlapping or future reservations, each editable or cancellable under policy constraints. • Binary MLM logic – automatic left/right placement, level-based commission calculations, secure wallet, payout re...
I currently license an expensive booking system and would like to replace it with a self-hosted version that we fully own. Your task is to analyse the existing application (access will be provided), use AI-assisted techniques where helpful, and rebuild an equivalent web app focused on cost savings without sacrificing functionality. Core functionality to replicate • Booking management for cabins and powered/unpowered sites • Real-time site availability tracking with calendar/grid views • Integrated payment processing (Windcave) API connections to all OTA's inc Airbnb, , Hipcamp, Bookeasy, Big4, G'Day Parks, etc. Email and SMS communication. Front end and back-end functional on both laptop and phones (85% on bookings are on mobile devices). Enhanced require...
I already have the complete Android source code and APK; now I need an identical iOS build targeted for iPhone only. Every screen, flow and feature must behave exactly as on Android—no additions, removals or alterations. Your job covers: • Setting up the new Xcode project and coding the app in Swift or Objective-C (your call, as long as performance and Apple guidelines are met). • Re-implementing any REST calls, local storage, push notifications and third-party SDKs present in the Android version. • Thorough testing on real iPhone hardware to make sure the build is stable and visually consistent. • Guiding me through App Store Connect, TestFlight distribution, metadata, screenshots and final submission until Apple approves the app. To move forward, please send m...
I already run a real-money, multiplayer Ludo game in production on a React (TSX) front-end with a Node.js backend. Now I want the very same experience packaged as an Android app. You will start from the existing codebase and reuse as much business logic as possible, then reshape it for a smooth mobile flow. The Android build must preserve every live feature—gameplay, wallet handling, real-time matchmaking, authentication, in-game chat, and anything else users already enjoy on the web—while also feeling truly native (push notifications, back-button behaviour, Play-Store-ready signing, etc.). I am happy to consider React Native, Kotlin, Flutter or another approach if it lets us: • call my current REST/WebSocket endpoints with minimal refactor • keep animations and ...
I need a Python-based copy-trading system focused on day trading equities and FnO instruments. My goal is to have one “master” account pushing trades in real time to multiple “slave” accounts, with latency low enough to keep fills within the same candle. Core functions I expect: • Fully automated order replication—entries, partial exits, stop-loss and target modifications. • Instant trade-signal alerts via Telegram or WebSocket so I can monitor activity even when terminals are closed. • Ongoing performance tracking that aggregates P&L by symbol and by account, exports to CSV and displays a quick dashboard in a lightweight web UI. The code should be clean, modular and well-commented so I can extend it later. I already have API ke...
I need a versatile full-stack Java developer who can dedicate a full 8-hour shift aligned with Pacific Standard Time. The work revolves around a new enterprise platform we are rolling out internally, and I expect you to be comfortable owning both back-end Java code and the corresponding front-end layer. Scope of the build The application’s first release must cover three core capabilities: • User management • Data analytics • Workflow automation We will tackle these features in two-week Agile sprints, with planning, daily stand-ups, and sprint reviews held on my calendar in PST. You will demo working software at the end of every sprint so we can decide together what to refine next. Your day-to-day – Write clean, tested Java code and wire it to a modern fr...
I need my existing app wired up to an existing external REST API so it can securely fetch data, submit updates, handle authentication, and allow users to upload files. Most endpoints accept/return JSON, and uploads are sent as multipart/form-data — your code must handle both cleanly and reliably. Deliverables: A small, reusable, well-typed API client layer (e.g., /lib/api or similar) using fetch or Axios Authentication integration (bearer tokens / OAuth details provided). Requests should be signed correctly and handled consistently across the app Example usage: at least one working flow for: data retrieval data submission login/session handling file upload (multipart/form-data) Robust error handling (including loading + failure states) and a short README explaining patterns...
I need a clean, modern, minimalist frontend that guides mobile users through four key moments: logging in, opening the phone camera from the browser, sending each capture to my backend for both OCR and AI image recognition, and finally displaying a running points balance that can be exchanged in a small reward catalogue. The project is strictly front-end: I will expose REST/GraphQL endpoints for authentication, image upload/analysis, point bookkeeping and catalogue data. You wire the UI, handle state, and ensure a smooth hand-off of images taken with the mobile camera (desktop fallback is a plus but not essential). Feel free to recommend the stack—React + , Vue 3, or a similarly lightweight SPA framework are all acceptable as long as it stays performant on mobile. Core deliverables...
TallyPrime Sync Plugin Developer — TDL + REST API Integration Project Overview We are building a TallyPrime plugin (TDL with optional COM DLL) that synchronizes data bi-directionally between TallyPrime and our cloud-based system via REST APIs (JSON over HTTPS). We are seeking an experienced Tally developer with strong expertise in TDL and modern API integrations to implement a production-ready synchronization solution inside TallyPrime. Project Scope The plugin will run within TallyPrime and support the following capabilities: 1. Initial Data Migration On first setup, the plugin must export existing masters and recent transactions from Tally to our cloud system in batches. Requirements: Progress UI for real-time visibility Scope selection (Current Financial Year, Last N Months, ...
I want a complete, production-ready mobile application that runs smoothly on both iOS and Android. The core idea is a multi-resort booking platform wrapped inside a binary MLM structure: every user can reserve rooms across several partner resorts while simultaneously building a two-leg network that earns commissions from each down-line booking. Key elements to build • Resort booking engine – real-time room availability, multi-resort catalog, date/guest selectors, pricing rules and in-app payments. • Multiple bookings per user – one account may hold overlapping or future reservations, each editable or cancellable under policy constraints. • Binary MLM logic – automatic left/right placement, level-based commission calculations, secure wallet, payout re...
I need a developer who can connect my eCommerce store to SAP Business One through the official API so that stock levels and order details move automatically between the two systems. The focus is on two-way, near-real-time synchronisation of: • Inventory updates (SKU, quantity, warehouse) • Order processing data (new sales, status changes, fulfilment info) The goal is to eliminate manual CSV uploads and give our team live visibility inside SAP B1 while keeping the web shop accurate for customers. You are free to choose the most efficient approach—Service Layer REST endpoints, DI API, webhooks or a middleware layer—as long as it is robust, well-documented and can handle our current daily volume of roughly a thousand SKUs and several hundred orders. Deliverables ...
The project covers two linked assets—a marketing website and an interactive web application—built as a single, cohesive code-base. Everything must be modern, fully responsive, and branded with a clean, intuitive UI/UX. Tech stack is already set: Angular on the frontend and a Node.js (Express) backend. Expect secure, stateless authentication (JWT or OAuth, whichever you judge best), role-based access, and a well-structured REST API that can later expand to GraphQL if needed. Data will live in either MySQL, PostgreSQL, or MongoDB; I’m open to whichever you recommend once requirements are refined. Core functionality • Public-facing pages for visitors • A logged-in web app with real-time notifications • Separate admin dashboard for user, content, and sett...
I want to replicate the smooth, quick-credit experience that apps such as KreditBee and Money View deliver, but with my own branding and flow. The build is strictly for Android and must be submitted to – and accepted by – Google Play, so every screen, permission request, and data-handling practice has to comply with the latest Play Store lending and personal-loan policies. Core flow • Registration → basic details • KYC verification – Aadhaar/PAN capture, selfie match, secure API hand-off to a third-party service of your choice • Loan application and approval dashboard • Before loan disbursement, the app must harvest and store the user’s full contact list (names, phone numbers, email where available) after an explicit consent prompt ...
I am seeking a skilled PHP Ecommerce developer to build a custom module for a third party ecommerce shopping cart. This module will maintain full sync with an external product source via API. Scope of work - Develop a custom PHP module for ecommerce site. - Implement full sync with external product source via API. - Ensure reliable data transfer and synchronization between the source and module. Developer expertise: Performance, Security, Testing procedures Programming language: PHP Ideal candidate Skills and experience: - Skilled in PHP development. - Experience with API integrations. - Knowledge of ecommerce platforms.
I need a full‑stack developer or small dev team to integrate the Roku Ads / Demand API and build a white‑labeled advertising dashboard for my broadcasting business. The goal is to have a self‑serve style interface where we can manage campaigns, view performance, and provide reporting to clients. Key requirements: Strong experience with REST APIs and OAuth Experience integrating advertising or analytics APIs (Roku Ads, Google Ads, Meta Ads, or similar) Backend in Node.js, Python, or similar modern stack Frontend dashboard with authentication, user management, and role‑based access Reporting views for impressions, spend, conversions, and other key metrics Ability to pull and aggregate data from Roku and potentially other ad platforms into a single UI Nice to have: Experience with Ro...
need billing software with android and ios app based just like vyapar software urgent basis if ready is there kindly provide me, can make quotation, letter head, invoice with gst and without gst, auto calculate gst as selection.
About the role We’re building a Security SaaS platform used by customers who depend on reliability, performance, and strong security foundations. As a Backend Developer, you’ll design and implement APIs and backend services that power our product—covering everything from data pipelines and integrations to authentication, auditing, and system scalability. You’ll work closely with Product, Security, and Operations teams to deliver secure-by-default services with great developer ergonomics. Tech stack (current & relevant) • Python (Django / Django REST Framework) • Go (services, high-performance workloads) • C++ / C# (agents, performance-critical components, integrations) • REST APIs, OpenAPI/Swagger • PostgreSQL / Redis (typical), m...
Product Overview P2P Crypto Marketplace for Digital Goods A decentralized, escrow-backed peer-to-peer marketplace enabling users to safely trade digital goods (subscriptions, gift cards, licenses, accounts) using cryptocurrency, launched as a Telegram Mini App for instant global reach. The platform eliminates trust issues in digital goods trading by combining KYC verification, smart-contract escrow, and multi-step trade validation. Core Value Proposition Trade digital goods globally with crypto—without trust, fraud, or delays. No chargebacks No middleman holding funds No long onboarding Built for crypto users, not adapted for them How It Works (Trade Flow) User Verification Telegram login (one-tap) Mandatory KYC (basic → advanced tiers) Wallet connection (EVM-comp...
I’ve reached the point where our Salesforce org needs deeper tailoring to match our internal processes. My immediate priority is system configuration—specifically building out custom objects and fields that reflect our data model, then automating routine actions with Workflows, Process Builder or Flows (whichever proves most efficient). Beyond that core setup, I also need the environment ready for integrations with at least one external system. Exact platforms will be discussed once we connect, but expect REST- or SOAP-based API work, authentication setup, and field-level mappings to bring data in and out of Salesforce smoothly. Deliverables • New custom objects, fields and relationships fully deployed to production • Automation logic (Workflow Rules, Proces...
I’m launching a start-up and need a seasoned full-stack partner to take the product from concept to production. The core idea is a three-sided, AI-powered marketplace and lets me manage everything from one place. Scope in a nutshell • Build the public-facing user portal with , Tailwind and Framer Motion. It must feel lightning-fast and modern, with smooth page-transition animations. • Develop a dedicated dashboard where owners can manage bookings, see real-time analytics and handle payouts. • Create an admin portal so I can approve applications, oversee users, tweak fees and pull platform reports without touching the codebase. • Stand up an + MongoDB backend, expose clean REST APIs and keep things modular for future micro-services. • Train or inte...
FlutterFlow API Integration & UI Logic Wiring This project is strictly frontend logic wiring in FlutterFlow. Backend is already deployed on Railway and fully functional. All required APIs are live and returning 200 OK when tested. No backend changes are allowed. Tech Stack Frontend: FlutterFlow Backend: Existing REST APIs (already connected & tested) Method: POST Response format: JSON Screens & UI Elements (Already Created) Questionnaire page with inputs Q1 – Q10 “Submit Questionnaire” button Result page with Text Widget (output display) “Ask Any Question” input field “Ask” button Loading indicator widget Error display (Snackbar / Text) Tasks to Implement 1. Questionnaire Submission Flow Collect values from Q1–Q10 Combine them int...
FlutterFlow API Integration & UI Logic Wiring This project is strictly frontend logic wiring in FlutterFlow. Backend is already deployed on Railway and fully functional. All required APIs are live and returning 200 OK when tested. No backend changes are allowed. Tech Stack Frontend: FlutterFlow Backend: Existing REST APIs (already connected & tested) Method: POST Response format: JSON Screens & UI Elements (Already Created) Questionnaire page with inputs Q1 – Q10 “Submit Questionnaire” button Result page with Text Widget (output display) “Ask Any Question” input field “Ask” button Loading indicator widget Error display (Snackbar / Text) Tasks to Implement 1. Questionnaire Submission Flow Collect values from Q1–Q10 Combine them int...
Product Overview P2P Crypto Marketplace for Digital Goods A decentralized, escrow-backed peer-to-peer marketplace enabling users to safely trade digital goods (subscriptions, gift cards, licenses, accounts) using cryptocurrency, launched as a Telegram Mini App for instant global reach. The platform eliminates trust issues in digital goods trading by combining KYC verification, smart-contract escrow, and multi-step trade validation. Core Value Proposition Trade digital goods globally with crypto—without trust, fraud, or delays. No chargebacks No middleman holding funds No long onboarding Built for crypto users, not adapted for them How It Works (Trade Flow) User Verification Telegram login (one-tap) Mandatory KYC (basic → advanced tiers) Wallet connection (EVM-comp...
NOTE - This position is for full-time freelancers, No Agencies please !! Apply with you Resume. Once the resume is shortlisted, you will have 2 rounds of interviews. Per hour rate - INR 750 Max. We’re looking for a strong full-stack developer for one of our Clients with deep experience in Node.js + TypeScript to own the end-to-end delivery of complex applications. You will move beyond standard CLI builds to architect self-hosted applications and robust backend services that integrate seamlessly with the Wix ecosystem and other platforms to follow We are a forward-thinking team that embraces modern efficiency: you will be expected to leverage AI tools like Claude Code and Cursor to accelerate development speed, streamline refactoring, and maintain high-velocity output without sacrif...
I’m ready to turn a fresh idea into a fully-functional web-based e-commerce application. The goal is straightforward: build a fast, secure storefront that lets shoppers browse products, add them to a cart, and check out seamlessly on any modern browser. What I already have: the product concept, user flow sketches, and a clear list of must-have features. What I still need is the complete application—front end, back end, database, and payment integration—delivered as clean, well-documented code that I can host on my own server. Key expectations • Responsive interface that works smoothly on desktop and mobile browsers • Intuitive product catalog, search, and filter tools • Secure user accounts with password reset, email verification, and order history ...
I’m building Curacare, a full-stack web app that lets people handle medical emergencies without scrambling for information. The heart of the platform is a seamless doctor-consultation flow, so the appointment-scheduling module has to feel effortless on both mobile and desktop. Alongside that core feature, users must be able to reach hospitals instantly through a dedicated “Contact Hospital” pathway—click-to-call, email, or any direct channel you suggest—surfaced within one tap from the dashboard. Speed and reliability matter more than bells and whistles: every interaction should load in under a second, and every piece of patient data must be encrypted at rest and in transit. Tech-stack choices are open, though I’m leaning toward a React front-end, ...
.NET Developer – Production Support & Evolutionary Maintenance We are looking for a .NET Developer to actively participate in technical support, evolutionary maintenance, and continuous improvement of production systems. This role combines incident resolution, analysis of existing systems, and the development of functional and technical enhancements, working on both standalone solutions and SaaS products used by real clients and operating on platforms with high operational impact. Required Technical Skills - Backend / Microsoft Platform - Strong knowledge of .NET Framework 4.8 or higher, with experience developing, maintaining, and improving applications in production environments - Experience with Entity Framework (Code First and/or Database First), including relationship han...
I am building a single-page, online performance management system that leans heavily on dashboards and analytics rather than e-commerce or social networking flows. The back-end REST APIs are already in place; what I need is a focused front-end expert who can translate those endpoints into an elegant, fully responsive user experience using three core tools: Angular (latest stable version), Tailwind CSS v4, and the Progress UI component suite. The product scope covers employee evaluations, goal tracking, ongoing feedback, KPI and KRA monitoring, and periodic assessments. Each of these areas will require data-driven views—tables, forms, modals, and interactive charts—tied seamlessly to the API layer. You will also set up routing, state management, and role-based access so that ma...
I’m building a fully native mobile application that lets drivers book automotive services The core flow is simple: users create an account (email, phone, or social login),check real-time availability, reserve a time, then pay securely without ever leaving the app. Both iOS and Android need to feel identical in look and speed, so I’m expecting Swift/SwiftUI on the Apple side and Kotlin with Jetpack on Android, backed by a single REST or GraphQL API. South African gateway must handle payments, supporting saved cards and one-touch checkout via Credit Card (VISA) or selected electronic transfers as well as PayPal etc. Please show me past work that demonstrates: • native builds (no hybrid wrappers) • secure login implementation • a live payment gateway...
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