API RESTful Jobs

I am seeking an expert PHP Laravel developer to build a secure, high-performance API ecosystem to sync regional, demographic, and business metrics across our network of web platforms. While the initial use case is strictly internal data integration between our own domains, the system must be architected for a future subscription model from day one. This will allow us to seamlessly transition into selling API access to third-party developers and partners down the road without requiring a major structural code rewrite. Core Requirements 1. Scalable API Architecture (Source Platform): - Modular Endpoint Design: Build clean RESTful endpoints to serve regional statistics, economic metrics, and industry data. - Multi-Tenant Foundation: Design the backend security layer to easily scale from a s...

I’m building out the backend for a new product-oriented platform and need a Django specialist to craft a clean, scalable REST API. The core stack is Django + Django REST Framework with JWT for stateless authentication, all backed by MySQL. Scope of work • Authentication: implement registration and login strictly via email + password, issuing JWT access and refresh tokens. • Resources: expose a Products model with full CRUD endpoints secured behind the JWT layer. • Code quality: follow DRF best practices, modular app structure, environment-based settings, and thorough error handling so the codebase is easy to extend for upcoming mobile clients. • Documentation: auto-generate endpoint docs (Swagger or Redoc) straight from the code so future teams can onboar...

I need a cloud-based Transport Management System that works seamlessly on desktop browsers and mobile devices. The heart of the platform is a comprehensive load board, so shippers and carriers must be able to post loads, search and filter available freight, book instantly, and monitor status from pickup through delivery. Real-time GPS data has to feed straight into the interface so every booking shows live location updates. Beyond the load board, the system should include the typical TMS essentials—dispatcher dashboard, driver portal, customer portal, role-based permissions, and clear audit trails. Clean, responsive UI/UX is critical; the same codebase should adapt fluidly to phones, tablets, and large screens without losing functionality or speed. Needs to be hosted on vercel + su...

I have an enterprise mobility project that hinges on solid Mobile Device Management for a fleet of Android tablets and phones. I need one person who can move comfortably between hands-on Android coding and backend systems integration. On the Android side, you will work with Device Owner APIs, Android Enterprise, and the latest SDK features to create (or extend) an agent that handles enrollment, remote configuration, policy enforcement, and secure app distribution. Custom UI work is minimal; the focus is on reliable background services, zero-touch enrollment, kiosk mode, remote wipe, and compliance checks. On the integration side, you will stitch this agent into our existing infrastructure through RESTful APIs and webhooks. That includes authenticating against our identity provider, pushi...

I already have an IPO tracking app in production and now need a dedicated backend service that can fetch allotment results from the 30-plus Indian registrars the moment they go live. The entire service must be written in Node.js, since the rest of my stack is JavaScript based. Core expectations • Connect to every major registrar (KFintech, Link Intime, Bigshare, Cameo, Skyline, etc.) and return real-time allotment status using the usual identifiers—PAN, application number, DP/Client ID, or combination thereof. • Normalise the various HTML, CSV, PDF, and basic API outputs into a single clean JSON response. • Build a set of REST endpoints with simple auth, comprehensive error handling, and logs I can pipe into my existing monitoring. • Provide clear deploym...

I’m building a full-featured website for our new pickleball league and need an experienced backend developer to bring the real-time pieces to life. The stack is already chosen: Node.js (Express or NestJS) with PostgreSQL as the primary database. Core tasks • Live player auctions – real-time bidding, instant bid notifications, and a full auction history log powered by Socket.IO. • Live match scoring – endpoints that push each team’s score and stats seconds after every rally so the front-end can update instantly. • Secure auth – JWT sessions plus OTP or token-based magic-link login for captains, admins, and bidders. • Media handling – upload player photos and team assets straight to AWS S3 (or Cloudinary if you prefer) and stor...

I need a skilled backend developer to build and deploy a secure user-authentication and management service written in Node.js and hosted on Google Cloud Platform. The project is green-field, so you’ll be setting up everything from the ground up: server environment, database connection, and the authentication flow itself. What I expect • A clean, well-structured Node.js codebase that exposes REST (or GraphQL, if you prefer) endpoints for sign-up, login, password reset, refresh tokens and role-based access. • Deployment to GCP using the service you judge best (Cloud Run, App Engine, GKE, etc.) with environment variables managed safely and logs viewable in Cloud Logging. • A small, automated CI/CD pipeline so updates go live with minimal downtime. • Clear, d...

My inventory management SaaS already works well once a user is inside, but everything around it still relies on manual steps. I need a developer who can remove every bit of human intervention from the subscription flow and add a few accounting-focused upgrades at the same time. User onboarding automation • The system must let new customers create an account, choose a subscription, set their username and password, pay, and land inside their dashboard automatically. • No staff touch-points: after payment, access should be provisioned instantly, including any trial logic or plan limits. • Please include email verification, forgotten-password flow, and basic subscription management (upgrade, downgrade, cancel). Inventory add-on priority The immediate module I want wove...

I have a custom coded woocommerce website and need to integrate this API into the website

I have a two-week window to enhance our client dashboard and need a JavaScript specialist who works comfortably with React, hooks, and modern state management. The scope is clear: • Build a set of interactive charts based on basic, industry-standard templates (think Victory, Recharts, or —whatever you’re fastest with, as long as it is responsive and themable). • Implement a user-management module that lets admins view, create, edit, and deactivate accounts, wired to our existing REST endpoints. Everything must be fully responsive and tested across modern browsers. You will work about 20 hours a week, starting immediately, and deliver production-ready code through a GitHub pull request. I can review and merge daily. The total project compensation is US $750, re...

Project Overview We are developing a Construction Company Management System (ERP) to manage the complete workflow of a construction and interior business from lead generation to project completion, accounting, employee management, and reporting. The system is being built as a centralized platform where management, accountants, project managers, HR, sales teams, and employees can perform their day-to-day operations from a single application. Current Modules CRM & Client Management • Lead management • Client database • Follow-up tracking • Inquiry management Project Management • Project creation and tracking • Site visit records • Project status monitoring • Task assignment and tracking • Project documentation HR & Employee Management &bu...

I need a full-stack inventory management application that lets me create, read, update and delete every core entity—products, suppliers, categories and locations—through a clean web interface and a documented Web API. Real-time stock updates are critical, so I expect live quantity adjustments pushed instantly to connected users (SignalR or an equivalent WebSocket approach is fine). The workflow must also support barcode scanning from either handheld scanners or a device camera, immediately pulling up the matching SKU for fast check-in / check-out. Reporting and analytics round out the must-haves: dashboards that show current stock, low-level alerts, turnover rates and exportable PDF/CSV summaries. A straightforward filter/search experience should let me slice data by date ra...

I need a full-stack inventory management application that lets me create, read, update and delete every core entity—products, suppliers, categories and locations—through a clean web interface and a documented Web API. Real-time stock updates are critical, so I expect live quantity adjustments pushed instantly to connected users (SignalR or an equivalent WebSocket approach is fine). The workflow must also support barcode scanning from either handheld scanners or a device camera, immediately pulling up the matching SKU for fast check-in / check-out. Reporting and analytics round out the must-haves: dashboards that show current stock, low-level alerts, turnover rates and exportable PDF/CSV summaries. A straightforward filter/search experience should let me slice data by date ra...

Our React Native mobile app depends on a Java 17+/Spring Boot backend built with Spring WebFlux. I need new REST endpoints created and existing ones refactored so that latency stays low even under heavy load. PostgreSQL is the primary datastore; JWT secures each call. What you will actually do • Design and code reactive REST APIs, container-ready with Docker • Tune performance with non-blocking patterns, Redis caching (nice to have), and proper connection sizing • Write unit and integration tests, then document everything in Swagger/OpenAPI • Push code through GitHub and keep the pipeline Kubernetes-friendly for future cloud rollout Acceptance is based on: 1. Endpoints meeting functional specs and returning <150 ms p99 in benchmark tests I provide. ...

I’m ready to retire the old PHP backend that powers my website and rebuild it in Node.js so the platform can scale without strain. Today the app runs on MySQL, authenticates users, performs a mix of simple and complex database queries, and talks to several external services through REST APIs. I need every one of those capabilities transferred to the new stack with behaviour, data, and response formats unchanged. You will have full access to the existing PHP codebase, database schema, and the live API keys. Using Node.js—Express, Koa, or a framework you’re comfortable with—your task is to mirror the current functionality and leave room for future horizontal scaling. Deliverables • User authentication flow reproduced in Node.js, maintaining current password-h...

I already have a working prototype, a tested PostgreSQL backend with a REST API, and a complete clickable UI design (web + mobile) with a written style guide. I need a developer to take it over the finish line so our date-palm farm runs entirely from one platform. The core still missing is the operational layer wired end-to-end. Each palm must move through registry → daily operations → harvest → sales without a hiccup, recording every step of the cycle (pollination, thinning, bagging, harvest, sorting) while keeping data consistent across browser, Android and iOS on ONE PostgreSQL database. The system is unified by two shared keys: a Tree ID (before harvest) and a Lot ID (after harvest); harvest hands the key from tree to lot. Pollination, harvest and sorting are the most ...

Tengo una aplicación Android desarrollada en .NET MAUI que almacena información en una base de datos Azure mediante REALM y se sincroniza a través de una API propia. La app funciona en producción, pero: • aparecen errores de sincronización de datos • se producen caídas inesperadas de la APP • detectamos ciertos problemas de rendimiento Suceden raramente y casi siempre durante la sincronización de datos. Contamos con Sentry instalado para capturar stack-traces y logs; aun así, no hemos localizado el origen exacto. Busco a alguien que: 1. Revise el código MAUI, el esquema REALM y la lógica de la API. 2. Reproduzca los fallos a partir de los eventos registrados en Sentry. 3. Identifique y corrij...

You will dive into Java-based services built with Spring, JEE, and JPA, exposing functionality through both REST and legacy SOAP endpoints. Clean, reusable, and thoroughly tested code is essential because these services feed a Spartacus-driven storefront as well as multiple third-party integrations. Key objectives for this engagement • Analyze current implementations, identify pain points, and propose technical improvements that align with Hybris best practices. • Implement those improvements in modular, maintainable code, following the platform’s extension structure. • Keep unit and integration test coverage meaningful so future upgrades happen smoothly. • Document changes clearly for the in-house team that will maintain the platform long-term. Acce...