Freelancers using ExpressJS in Nairobi

Freelancers using ExpressJS in NairobiFreelancers using ExpressJS in Nairobi

Projects People

proNairobi, Kenya

Turning your fintech and web3 ideas into shipped products

$50k+: Earned

45x: Hired

5.0: Rating

225: Followers

expert

expert

+2

Turning your fintech and web3 ideas into shipped products

Cover image for The Only Tip Management Platform with Built-In Compliance

The Only Tip Management Platform with Built-In Compliance

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Cover image for AI-powered Environmental Analysis Platform

AI-powered Environmental Analysis Platform

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Cover image for Fiberwave Website Redesign and SEO Migration

Fiberwave Website Redesign and SEO Migration

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Cover image for Epic Surf Discovery Platform Design

Epic Surf Discovery Platform Design

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Backend Engineer | APIs · Automation · AI Tools

New to Contra

Backend Engineer | APIs · Automation · AI Tools

Cover image for Metaverse Game is a real-time

Metaverse Game is a real-time multiplayer backend powering a 3D virtual world where users join spaces, customize avatars, and interact with each other live. It's fully tested, containerized, and enforces role-based access throughout. The problem: Multiplayer backends require solving real-time sync, access control, avatar state, and space management all at once. I built this to prove those problems are solvable cleanly — with a proper test suite to back it up. What I built: — JWT auth with role-based access control: admins create/delete spaces and elements; users join, move, and interact — Space management with full CRUD and authorization enforcement — Avatar creation, metadata storage, and customization with unauthorized deletion blocked at the route level — WebSocket-powered real-time layer: position updates broadcast to all users in a space, with graceful disconnect — Zod schema validation on all inputs — Prisma ORM + PostgreSQL for relational data across users, spaces, avatars, and elements — Docker containerization — runs anywhere — Full Jest test suite: 4 suites, 15 tests covering auth, spaces, avatars, and WebSocket edge cases Impact: 15 tests passing across 4 test suites. Role-based access enforced at route level. WebSocket broadcast confirmed end-to-end in tests. Zero environment setup friction — fully Dockerized. Stack: Node.js · TypeScript · Express.js · WebSockets · Prisma · PostgreSQL · Zod · Jest · Docker

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Cover image for Uber API is a production-ready

Uber API is a production-ready ride-hailing backend covering the full journey from authentication to ride completion. Users and captains get separate auth flows, real-time location tracking keeps drivers visible on the map, and every ride moves through a verified lifecycle — fare estimate, confirmation, OTP start, and end. The problem: Most ride-hailing tutorials fake the hard parts. I wanted to build all of them — multi-role auth, real-time location, Maps API integration, and a complete ride lifecycle — end to end, in one clean backend. What I built: — JWT + bcrypt authentication for two actor types (users and captains) with role-specific middleware — Real-time captain location broadcast via Socket.IO (http://Socket.IO) — Maps API integration: coordinate lookup, distance + ETA calculation, and address autocomplete — Full ride lifecycle: create request → get fare → captain confirms → OTP-verified start → end ride — 14 REST endpoints across 4 route groups (/users, /captain, /maps, /rides) — React (Vite) frontend for interacting with the API Impact: 14 fully functional endpoints. Two-actor auth system working end-to-end. Real-time location broadcast and OTP-secured ride handoff both verified in production. Stack: Node.js · Express.js · MongoDB Atlas · Mongoose · JWT · bcrypt · Socket.IO (http://Socket.IO) · Maps API · React

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Cover image for Devlynx is a production-ready AI

Devlynx is a production-ready AI code review platform that listens for GitHub pull request events, retrieves codebase context, and automatically generates structured, actionable feedback — posted directly back to the PR. The problem: Code reviews are a bottleneck. Developers wait hours (sometimes days) for feedback that's often inconsistent in quality. I built Devlynx to make high-quality, context-aware review available instantly on every PR. What I built: — Event-driven PR pipeline using Inngest that triggers on GitHub webhook events — AI review engine powered by Google Gemini via the ai-sdk, with codebase context retrieval for smarter, non-generic feedback — Persistent review storage with Prisma ORM + PostgreSQL — zero data loss since launch — Next.js (App Router) frontend dashboard to browse and manage reviews — Deployed on Vercel with Bun runtime for fast cold starts Impact: 50% reduction in manual PR review time. Reviews post automatically within seconds of a PR being opened. Stack: TypeScript · Next.js · Bun · Gemini AI · Inngest · Prisma ORM · PostgreSQL · Vercel · GitHub API

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Cover image for Zyra is a production-ready AI

Zyra is a production-ready AI assistant CLI that turns the terminal into a full-featured coding environment. Instead of context-switching between tools, developers can chat with AI, search codebases, generate entire applications, and execute code without leaving the command line. The problem: Developer tools are fragmented. I wanted a single, intelligent interface that could think, write code, and run it — authenticated and persistent across sessions. What I built: — Conversational AI agent backed by Google Gemini with full chat history — OAuth device flow authentication — secure login without storing credentials in plaintext — PostgreSQL session and history storage so conversations persist across restarts — Autonomous coding agent mode: generates and executes code in response to natural language prompts — Full-stack architecture: Node.js/TypeScript backend CLI + lightweight client frontend — Global CLI install (zyra --help, zyra login, zyra wakeup) via npm link Impact: Scaled to 100+ authenticated sessions. Adopted across 3+ active projects. Cuts developer setup and prototyping time by 40%. Stack: Node.js · TypeScript · Google Gemini · OAuth Device Flow · PostgreSQL · Express

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Full-Stack Developer React · Next.js · Node.js · TypeScript

New to Contra

Full-Stack Developer React · Next.js · Node.js · TypeScript

Cover image for Mern Shop — Full-Stack E-Commerce

Mern Shop — Full-Stack E-Commerce Platform A complete online shopping experience, built from the ground up. Mern Shop covers the full customer journey — product browsing, reviews, wishlists, cart, and real-time order tracking — backed by a powerful admin dashboard for inventory and order management. Secure JWT authentication keeps every user and transaction protected. Clean UI, solid architecture, and everything a real e-commerce business needs to launch and scale.

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Cover image for ToDoList — Task Management App
Productivity,

ToDoList — Task Management App Productivity, kept simple. A clean, intuitive to-do list app with drag-to-reorder tasks, inline editing, local data storage, and import/export support — all in a single HTML file with zero installation needed. Built for people who just want to get things done without the bloat. Small app, thoughtful details.

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Cover image for NexusChat — Real-Time Messaging Platform
Communication,

NexusChat — Real-Time Messaging Platform Communication, reimagined. NexusChat is a full-featured messaging platform built for real connections — not just text. One-on-one chats, group conversations, voice notes, file sharing, and calling — all in one place, all in real time. Built with a scalable architecture designed to handle growth without breaking a sweat. Think WhatsApp meets Discord, engineered from the ground up.

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Cover image for 📈 Built a real-time stock

📈 Built a real-time stock market dashboard — live data, heatmaps, and more. Signalist gives investors a full market overview at a glance — sector heatmaps, live price tracking, top stories, and detailed stock tables across Financial, Technology & Services. Built with a clean dark UI that makes complex data feel effortless to read. 🔗 Live Demo (https://signalist-stockmarket-app.vercel.app/) · GitHub (https://github.com/EllyCarlos/stockmarket-app)

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React.js Next.js Shadcn Ui developer

React.js Next.js Shadcn Ui developer

Cover image for I am currently building a

I am currently building a company review system using Next.js and MERN stack. The front-end is fully responsive and shows clean and intuitive interface designs of the components

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Cover image for I will build a

I will build a Next .js AI image generator website landing page for your business or you personal needs. The web app will be fully responsive and will meet all your business needs

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Cover image for Blog Haven is a blogging application built with React.js, Ty...

Blog Haven is a blogging application built with React.js, TypeScript, TailwindCSS, and Firebase for backend services. The application allows users to authenticate, create blog posts, and display them within the app.

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Cover image for A simple Amazon landing page clone built using React.js and ...

A simple Amazon landing page clone built using React.js and plain CSS. This project is designed for learning purposes and mimics the layout and structure of Amazon’s homepage by displaying a set of products in a clean and responsive UI.

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Digital Experience specialist

Digital Experience specialist

Cover image for zoe worship centre church website

zoe worship centre church website

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Cover image for kashio bubbles a laundromat website

kashio bubbles a laundromat website

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Cover image for Built a clean, responsive website for a photographer to show...

Built a clean, responsive website for a photographer to showcase their portfolio and attract clients. Mobile-friendly and easy to navigate. #ContraDesign

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Cover image for afc kiamba website

afc kiamba website

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Fullstack Software Engineer

Fullstack Software Engineer

Cover image for Climate Data API Documentation (clierozigy) | RapidAPI

Climate Data API Documentation (clierozigy) | RapidAPI

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Cover image for JS Bits

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Cover image for Famolit

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Cover image for droidconKe

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Full-Stack Apps: React, Node.js & More

Full-Stack Apps: React, Node.js & More

Cover image for Talent App

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Cover image for Talent (Powered by Jobzy)

Talent (Powered by Jobzy)

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Cover image for PDF Pal

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WordPress & Framer Development Done Right First Time

WordPress & Framer Development Done Right First Time

Cover image for Node Js PDF Generator Web Application

Node Js PDF Generator Web Application

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Cover image for Web Design/Development Web Crafting Forge

Web Design/Development Web Crafting Forge

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Cover image for Web Design and Development | GVL Digital Solutions

Web Design and Development | GVL Digital Solutions

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Cover image for WordPress Website Gardening Company

WordPress Website Gardening Company

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