RESTful Jobs

I have a GoHighLevel account that needs deeper, code-level adjustments so it can talk seamlessly with my own community system, which I use as a CRM. The native “Integrations” module won’t cover what I want, so I’m after a developer who can dive into the GHL API, webhooks and any necessary middleware to build a reliable two-way sync—contacts, tags, pipeline stages, notes and basic custom fields. The work is limited to the Integrations portion only; no changes to Dashboards or Automations are required right now. Although premade connectors exist for Salesforce, HubSpot and Zoho CRM, my goal is to replicate that same smooth experience for my proprietary platform. What I expect from you • Map out the data flow between GoHighLevel and my community system, hi...

I already have the core of an ERP SaaS platform in place, built with Java 17, Spring Boot, Spring Data JPA, RESTful APIs, and a MySQL backend. What I need now is a fully-featured Customer Relationship Management module that my employees can use day-to-day inside the same application. The scope of this engagement is limited to CRM functions only, but they must plug seamlessly into the existing codebase and follow its clean-architecture approach: • Lead Management – endpoints, UI pages, and persistence layers that let staff capture, qualify, score, and assign leads. • Sales Tracking – pipeline views, deal stages, and automated status updates tied to existing authentication and role policies. • Customer Support – ticket creation, SLA timers, comment thre...

I’m enhancing a custom web application built on the Laravel framework and need robust API integration completed. The core goal is to connect the app to a specific third-party API, handle authentication, map and store responses, and expose clean endpoints in our codebase. Here’s what I’m looking for: • Solid PHP and Laravel (v9 or v10) skills with at least one year of professional web-development experience. • Experience designing and consuming RESTful services, including error handling, rate-limit management, and data sanitisation. • Ability to write modular, well-documented code and create concise migration or seeding scripts where needed. • Familiarity with testing tools such as PHPUnit or Pest to cover critical integration logic. Key tasks...

We need an experienced backend developer to bring our customer-facing mobile web app (PWA) live for a package-forwarding business in Trinidad. The frontend is already built; we need the backend API, the wiring, and deployment. ═══════════════════════════════════════ WHAT'S ALREADY DONE (provided to you) ═══════════════════════════════════════ - Complete React PWA prototype — 9 fully designed and tappable screens (login, dashboard, package detail, invoices, pre-alert form, profile, notifications, account settings, help & support). Loading, error, and empty states all designed. ~1,400 lines of clean, documented code. - Complete API specification — 7 endpoints fully documented with request/response shapes, status enums, error handling, CORS requirements, and code-level...

My FastAPI-powered backend has started failing under load: some requests crash outright while others return inconsistent data. All problem routes interact heavily with our database layer, so I suspect the issue sits somewhere between the ORM and the request handlers, but I need an experienced set of eyes to confirm and patch it. Here is what I need from you within the next six hours: • Pinpoint the exact cause of the crashes and inconsistent responses • Implement a clean, tested fix so every endpoint behaves predictably again • Provide a concise write-up explaining what went wrong and how you resolved it You’ll be debugging a Python 3.x + FastAPI codebase that uses standard logging and REST conventions. If additional tooling—pdb, ipdb, pytest, or any profi...

Je souhaite créer une application e-commerce performante bâtie sur React pour le front-end et Node.js pour le back-end. Objectif : proposer une expérience professionnelle et épurée, rapide à charger, facile à faire évoluer. Fonctionnalités clés attendues • Catalogue produits complet avec interface d’administration (ajout, modification, suppression, organisation par catégories). • Panier d’achat dynamique : ajout, suppression, mise à jour des quantités, calcul automatique des totaux. • Interface utilisateur responsive, design clair et sobre, cohérent sur desktop comme mobile. • Architecture scalable et code bien structuré pour faciliter l’a...

I need a sharp-eyed manual tester to run our new REST API through its paces in Postman and confirm that it works exactly as designed. Your mission is pure functional testing—no load or regression work this time—so the goal is to prove that every call in the collection behaves correctly and fails gracefully when it should. Here’s what matters most to me: • Endpoint functionality: each URL must return the right status code and payload. • Data validation: responses must match the schema and respect field rules, including boundary values and required/optional attributes. • Error handling: bad inputs, missing tokens or malformed JSON should trigger the correct error codes and meaningful messages. You’ll get the Postman collection and enviornmen...

I am ready to publish a new integration on the OrbisAPI marketplace and need a production-ready RESTful API built from scratch. The service will act as a bridge between OrbisAPI and a small set of third-party APIs that I will specify once the project starts. No local database or file system storage is required—every request will simply fetch, transform, and return data coming from those external providers. Core scope • Design clean, versioned REST endpoints that follow standard HTTP semantics (GET, POST, PUT/PATCH, DELETE). • Handle authentication to the external providers using their preferred schemes (mostly Bearer tokens and OAuth2). • Normalise the responses so OrbisAPI users receive a consistent JSON structure regardless of which upstream service is queried...

I need a secure, fully-functional online banking system whose first release focuses on smooth, real-time fund transfers. The platform should let registered users move money between their own accounts and to third-party beneficiaries with the usual safeguards—two-factor authentication, transfer-limit logic, OTP confirmation, and an auditable trail. Here is what I expect: • Core feature: fund transfers (intra-bank and inter-bank) working end-to-end. • Web-based administrator dashboard to manage users, view logs, and set limits. • RESTful API that a future mobile app can consume. • Clean, modern front-end where customers can log in, see available accounts and execute transfers in a few clicks. • PCI-DSS-aligned security practices, encrypted data at res...

I’m ready to connect our SmartOLT provisioning platform with our in-house Netzur CRM through their respective REST APIs. The goal is to keep customer data perfectly aligned, fire automated actions the moment an event occurs on either side, and push instant SMS or WhatsApp notifications where required. Core scope • Data syncing – SmartOLT customer records (name, address, service plan, ONU details) must stay in two-way sync with the corresponding customer objects in Netzur. • PPPoE credentials – username and password fields need to travel alongside the standard customer information so new activations or credential changes propagate automatically. • Trigger-based actions – when a new ONU is provisioned, a plan is upgraded, or a customer is suspend...

I’m setting up centralized authentication on our Kong API gateway and want to enable the built-in JWT plugin. The goal is straightforward: every request to our protected routes should be validated through Kong’s native JWT support, then routed onward to our existing internal microservices once the token checks out. Here’s the current state and what I need from you: • Kong is already running in our staging Kubernetes cluster, fronting several REST services. • No auth is active yet—routes are open. • I have a list of internal consumer apps that will need their own key pairs or shared secrets. • Our services already issue JWTs; payload and signing algorithm follow the standard RFC, so we only need Kong configured to recognise and verify them...

I need a complete inventory ingestion and synchronisation layer for my B2B mobile application. The core of the project is a set of secure, well-documented REST APIs that can pull stock data from DRC and other external sources, as well as from custom third-party inventory platforms we already work with. Key requirements • Real-time and incremental sync of product details, supplier information and stock levels. • Custom validation rules plus structured error handling and logging so any bad payloads are quarantined and surfaced with clear messages. • Field-by-field data mapping and normalisation to keep SKUs, supplier IDs and quantity formats consistent across all sources. • A supplier access pipeline that relies on API keys or tokens, supports role-based permis...