stephenobumonah@gmail.com

Available for opportunities

Hi, I'm Onah Stephen. I build things
for the web.

Full-stack engineer specializing in Node.js, React, Python and cloud architectures. I design and build scalable digital experiences — from elegant UIs to high-performance APIs.

See my work Download CV
6+ Years Experience
15+ Projects Shipped
5+ Companies Served
01. About Me

I'm a full-stack engineer based in Lagos, Nigeria, passionate about building products that live at the intersection of great engineering and great UX.

I thrive in end-to-end development — architecting REST & GraphQL APIs, crafting responsive React/Next.js frontends, and deploying production-grade systems on AWS and modern cloud platforms. I bring a strong bias for clean code, performance, and reliability.

Outside of work, I'm constantly learning — contributing to open-source projects, building side products, and exploring new tools in the JavaScript and Python ecosystems.

Node.js React / Next.js Python / Django TypeScript PostgreSQL MongoDB AWS Docker
Onah Stephen
02. Where I've Worked

Fullstack Engineer @ HTM Hydro Technology Motors

August 2025 — Present · Frankfurt, Germany

  • Designed and maintained RESTful + GraphQL APIs with NestJS, Node.js, and Python to streamline system integrations.
  • Implemented Dockerized CI/CD pipelines backed by Git-based workflows, improving deployment reliability and compliance.
  • Optimized backend services reducing API response latency by 30%.
  • Deployed resilient workloads on AWS (S3, Lambda, EC2, RDS) delivering 99.9% availability.
  • Automated quality gates with GitHub Actions, Jest, and integration tests to secure every release.

NestJS · Node.js · Python · Django · AWS · Docker · GraphQL · MongoDB · PostgreSQL · GitHub Actions

Fullstack Engineer @ Gurugeeks

April 2025 — August 2025 · Contract, Remote Nigeria

  • Co-created a feature-rich LMS with Next.js, Tailwind CSS, Node.js, and TypeScript serving 500+ active users.
  • Launched scalable HRM and CRM SaaS products anchored in cloud-native best practices.
  • Defined system architecture and database schemas ensuring consistently high throughput.
  • Championed Agile rituals and fast iterations to keep milestones on track.

Python · FastAPI · Next.js · TypeScript · AWS S3 · Paystack · PostgreSQL · MongoDB · Tortoise ORM

Fullstack Developer @ Thirdwish

November 2024 — January 2025 · Remote, Spain

  • Designed and implemented RESTful and GraphQL APIs using NestJS, Node.js, and Python.
  • Built serverless and containerized solutions on AWS Lambda, S3, and EC2 reducing operational costs.
  • Managed SQL and NoSQL databases (PostgreSQL, MySQL, MongoDB) for optimal performance.

NestJS · Node.js · Python · AWS · PostgreSQL · MySQL · MongoDB · GraphQL

Backend Developer @ Hupdev

June 2022 — November 2024 · Remote, Nigeria

  • Developed and optimized backend systems using Python, Django, and Node.js — reducing API response time by 30%.
  • Designed and integrated RESTful APIs and GraphQL endpoints enhancing frontend-backend communication.
  • Optimized database performance for SQL, PostgreSQL, and MongoDB — improving query efficiency by 50%.

Python · Django · Node.js · GraphQL · MongoDB · PostgreSQL · MySQL

Backend Developer @ Brimble

April 2023 — February 2024 · Remote

  • Engineered robust backend solutions using Node.js and TypeScript, ensuring optimal performance and scalability.
  • Built and maintained RESTful and GraphQL APIs with seamless frontend integrations.
  • Managed SQL and NoSQL databases — improving data retrieval speed by 40% through indexing strategies.

Node.js · TypeScript · GraphQL · MongoDB · PostgreSQL · MySQL

Backend Developer @ RE Land

February 2022 — August 2023 · Remote, United States

  • Led backend development using TypeScript — improving code maintainability and reducing bugs by 40%.
  • Built CI/CD pipelines for automated deployment, reducing deployment time by 60%.
  • Developed a microservices-based architecture improving system scalability and modularity.

TypeScript · Node.js · Microservices · CI/CD · PostgreSQL

03. Skills & Tools

Frontend

ReactNext.jsTypeScript JavaScriptHTML5CSS3 Tailwind CSS

Backend

Node.jsNestJSExpress.js PythonDjangoFastAPI FlaskGraphQLREST APIs

Databases

MongoDBPostgreSQL MySQLRedis

Cloud & DevOps

AWS S3 / Lambda / EC2 / RDS DockerGitHub Actions CI/CDVercelRender

Tools

GitGitHubJest PostmanSocket.IO
04. Featured Work
Featured Project

Synapse — Architecture Design Platform

A production-grade, real-time collaborative architecture design system with live canvas editing, Socket.IO-powered real-time sync across users, AI-driven canvas manipulation via Gemini API, and Infrastructure-as-Code blueprint generation (Docker Compose & Terraform). Features resilient error boundaries, JWT authentication, and deploys seamlessly on Vercel + Render with MongoDB Atlas. Phase 13 production-ready with compression, security hardening, and comprehensive error handling.

React 18 Vite TypeScript Node.js Express MongoDB Socket.IO Tailwind CSS Helmet Docker
synapse.ts
// Real-time canvas architecture sync
const socket = io(SOCKET_URL);
socket.on('nodeAdded', (payload) => {
canvas.addNode(payload);
});
 
// Generate infrastructure blueprint
const blueprint = generateDockerCompose(nodes);
blueprint.export('docker-compose.yml');
 
// 13 phases complete ✓

NemApp — Social Media Platform

Real-time social media app with post feeds, story reels, notifications via Socket.IO, following system, and JWT authentication deployed on Vercel + Render.

Next.js 14Node.jsSocket.IOMongoDB

Speedly

Real estate management app featuring property listing, management, and transactions. Live on Google Play.

FastAPIPythonPostgreSQL

Abamade

E-commerce platform for buying and selling products — with listings, cart, checkout, and seller management.

Next.jsNode.jsExpressMongoDB

LinkMeUp

Identity and access management system with advanced security, multi-factor authentication, and user access control.

Node.jsExpressPostgreSQL

Hope4Dliving

Non-profit website for a ministry organization — mobile-responsive with sermon content and donation integrations.

ReactNext.jsNode.js
View More on GitHub
05. Certifications
Fullstack Web Development — TechForge Academy

Earned a comprehensive Fullstack Web Development certification covering end-to-end development, front-end & back-end technologies, database management, and modern development practices.

Fullstack Web Development

TechForge Academy May 2026
Advanced Backend Development — CodeMasters Academy

Validates advanced mastery in backend engineering — scalable system architecture, microservices, database optimisation, advanced API security, and cloud-native infrastructure management.

Advanced Backend Development

CodeMasters Academy Feb 2026
View Certificate

Actively participated in HNG Internship 11 (2024) as a Back End Development intern. Demonstrated a high level of proficiency and added measurable value throughout the programme.

Backend Track Certificate

HNG Tech Aug 2024

JavaScript Essential Training

LinkedIn Jun 2025 JavaScript

Succeeding in Web Development: Full Stack & Front End

LinkedIn Jun 2025 Full-Stack · Front-End

Advanced Node.js

LinkedIn Jun 2025 Node.js

Relational Databases Essential Training

LinkedIn Jun 2025 Relational Databases

Node.js Backend Developer

Femtech Solutions Sep 2020 REST APIs · Node.js
06. Get In Touch

Let's Work Together

Whether you have a project in mind, a role to fill, or just want to talk shop — my inbox is always open.

Say Hello
Location Lagos, Nigeria · Open to Remote