Finance API & Mobile App
I need a robust, well-documented RESTful API that can 1) pull live and historical stock quotes, 2) ingest and process personal-finance transactions (CSV, Plaid...
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Remote Java + React Full Stack Developer
Full Stack Developer (Java + React) - Remote Contract Position We are looking for an experienced Full Stack Developer with expertise in Java and React for a rem...
Read moreSpring Boot E-commerce API Development
I’m building a B2C mobile & web app focused on e-commerce and I need a solid back-end foundation. Your task is to craft a Spring Boot REST API and the accompany...
Read moreWebapp Maintenance & Feature Growth
I’m taking back control of a web application that was built through an external IT firm and now need a technically hands-on partner to own it day-to-day. The im...
Read moreBubble Customer Portal with API Integrations
I’m building a customer-facing portal for accounting practice in Bubble that streamlines document handling and support while exchanging data with several extern...
Read moreMeta API Marketplace Connector
Project Overview: We are looking for an experienced Meta API developer to build a marketplace connector that links our existing API Hub to Facebook and Instagra...
Read moreFull-Stack Java Web Update
I have an existing Java-based web application that needs a thorough refresh on both the frontend and backend. My goal is to bring the codebase up to current sta...
Read moreLaravel API Authentication Bug Fix
My /api/place-order route in Laravel has suddenly begun throwing error messages whenever it’s hit with the usual Bearer token in the Authorization header. Every...
Read moreBudgeting Web App & Integrations
I’m building a budgeting-focused web application and need a seasoned full-stack developer to take it from concept to a functional, hosted MVP. Core scope • Budg...
Read moreLaravel JSON API Backend Development
I’m looking for a Laravel specialist to build a clean, well-documented JSON API backend. The core goal is to expose RESTful endpoints that my front-end team can...
Read moreMatter-Gateway Development in Python/C++
Technical Specification — Matter Gateway With Virtual Devices (python/c++) Project Title: Matter Gateway with Virtual Devices (Python or C++) Description: We ne...
Read moreExperienced APIGEE Developer Needed
I have a portfolio of REST-based services that I’m ready to expose through Google Apigee, and I need an expert who can jump in right away and stand everything u...
Read moren8n Workflow Automation & Alerts
I need an experienced n8n developer to connect App1, App2, and App3 so that critical events trigger reliable in-app notifications sourced from App1. The scope i...
Read moreZATCA E-Invoice API Integration
I need a production-ready API layer that lets our existing Microsoft Dynamics ERP push sales invoices to ZATCA in Saudi Arabia, retrieve the clearance response,...
Read moreMulti-Role Service Portal Development
I need a full-stack web portal that supports three separate log-in experiences—admin, vendor, and end user—within one cohesive service-based platform. The core...
Read moreJava Senior Developer / Software Architect — Microservices Spring Boot Webhooks + Auto-Updating Desktop Client
We’re looking an experienced Java engineer (or small team) to build two coordinated pieces: A Spring Boot microservice (Tomcat) that exposes/consumes webhooks a...
Read moreExperienced Back-End Developer Needed for APIs
Back-End Developer (PHP / Laravel / Symfony) Company Overview: We are a contract and outsourcing specialist group providing full-stack development services for...
Read moreEnterprise Java Application Build
I’m launching a new enterprise-grade software initiative and need a senior-level Java professional to take ownership of the core build. The goal is to deliver a...
Read moreWordPress to React Migration
We’re migrating an existing WordPress website to a modern React frontend and need an experienced Backend Engineer to handle the backend transition. You’ll work...
Read moreJava Full-Stack Web Integration (US/CA)
The core of this project is a production-grade web application powered by a Java back end and a React front end. All major features are already scoped; what I n...
Read moreAI Engineer for Industrial Digital Twin Platform
We’re building an Industrial Digital Twin & Generative AI platform that connects real-world operations with intelligent conversational systems. We’re looking fo...
Read moreCulturally Tuned Multilingual AI Infrastructure
I’m assembling a cross-functional team to build a multilingual AI infrastructure, taking inspiration from models such as Deepseek but pushing much further on cu...
Read moreMobile App Backend Integration
I’m looking for a backend developer who can quickly wire up the core services for my mobile app. The frontend design is ready with us. The stack I have in mind...
Read moreSaaS Email Deliverability Web App
Objective Build a web-based SaaS platform that helps users create and manage pre-warmed mailboxes with automated domain setup (SPF, DKIM, DMARC) and integration...
Read moreGo & TypeScript API Engineer
I’m looking for a hands-on developer who can take the lead on API development in Go while also handling the TypeScript side of the stack. The back-end is the pr...
Read moreDon't bid unusually - Full Time CodeIgniter CMS Developer
It's a full time job. So bid monthly salary wise. I need an experienced CodeIgniter specialist (5+ years) to take ownership of the content-management systems th...
Read moreIntegración ERP con SAT México
Necesito orientación clara y concisa para enlazar nuestro ERP con el Servicio de Administración Tributaria (SAT) de México, enfocándonos en facturación electrón...
Read moreReact-Node UI & Feature Upgrade
Our small team is entering the next sprint to polish and extend an established web app built with React.js on the front-end and Node.js on the back-end. The cod...
Read moreVersatile Web API Development
We are seeking 1 - 2 experienced web API developers proficient in C# and .NET to join our project. The ideal candidate will possess a strong background in build...
Read moreSistema de controle de abastecimento (TCC)
Preciso migrar uma sistema atual desenvolvido em Java desktop para Web utilizando Springboot + frontend. O sistema tem com objetivo, uma tela de login para iden...
Read moreToken & Smart Contract Backend Development
Project: Ethereum Token & Smart Contract Backend Development Objective Develop and deliver a secure, production-ready backend and smart contract system for an E...
Read moreAndroid Sealed Bid Auction
I’m building a sealed-bid auction platform focused on Android and I need the full solution—from the mobile app that bidders use to a secure, browser-based admin...
Read moreSenior Java Developer Needed
Senior Java Developer – US Work Support Experience Required: 7+ Years Work Mode: 100% Remote (Work from Home) Engagement Type: Part-Time (2–3 Hours per Day) Con...
Read moreGo Backend Developer – Microservices & API Development for Scalable App
Summary We’re looking for a Go (Golang) Developer to build modular backend services and APIs for a modern, scalable platform. The backend will follow a clean ar...
Read moreGo Backend Developer – Microservices & API Development for Scalable App -- 2
Summary We’re looking for a Go (Golang) Developer to build modular backend services and APIs for a modern, scalable platform. The backend will follow a clean ar...
Read moreMercado Pago AWS Integration
I need a GeneXus developer who works in Java/Tomcat to wire my application to Mercado Pago using the official SDK and expose the logic as a secure REST service...
Read moreSistema Contable ERP
The project is a ground-up ERP build that will run on a Java (Spring Boot) backend with an Angular front end and a PostgreSQL database. Ultimately the system wi...
Read moreCron and the Rugby API
English: I need to set up cron jobs along with a trusted API to automatically update scores for my rugby website. Each time a match ends, the cron will call the...
Read morePython API Backend Development
The front-end is already in motion; what I am missing is a solid, production-ready backend that speaks to it through clean, well-structured APIs. I want this la...
Read moreSpring Boot Specialist for Healthcare AI SaaS
Spring Boot Developer for AI-Driven Health SaaS Platform (Next.js Frontend) - About the Project We’re developing a digital health platform that uses AI to deliv...
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