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I'm a full-stack software engineer with over five years of contract and freelance experience building production web applications in JavaScript, TypeScript and Python. Recently Ive focused on AI features. On an e-commerce platform for a premium paint retailer, I built product recommendations, an AI customer-service assistant and AI quick-reply support, and spent a lot of time testing the assistant's responses against real customer questions and refining them until they were reliable. Before that, I worked as a frontend developer at Fellor, where I helped cut critical bugs by 25% and page load times by 35%, and as a freelance MERN developer, where I owned delivery from requirements to deployment. I read specs and designs closely, work well with product, design and QA teams, and write clearly. I'm comfortable working remotely and independently to meet deadlines. Stack: React, Next.js, Node.js, Express, FastAPI, PHP, MongoDB, PostgreSQL, Supabase, Git, Jest.…I'm a full-stack software engineer with over five years of contract and freelance experience building production web applications in JavaScript, TypeScript and Python. Recently Ive focused on AI features. On an e-commerce platform for a premium paint retailer, I built product recommendations, an AI customer-service assistant and AI quick-reply support, and spent a lot of time testing the assistant's responses against real customer questions and refining them until they were reliable. Before that, I worked as a frontend developer at Fellor, where I helped cut critical bugs by 25% and page load times by 35%, and as a freelance MERN developer, where I owned delivery from requirements to deployment. I read specs and designs closely, work well with product, design and QA teams, and write clearly. I'm comfortable working remotely and independently to meet deadlines. Stack: React, Next.js, Node.js, Express, FastAPI, PHP, MongoDB, PostgreSQL, Supabase, Git, Jest.

Umar Usman

Full Stack Developer, Back-End Developer, Front-End Developer, +5

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I'm a full-stack software engineer with over five years of contract and freelance experience building production web applications in JavaScript, TypeScript and Python. Recently Ive focused on AI features. On an e-commerce platform for a premium paint retailer, I built product recommendations, an AI customer-service assistant and AI quick-reply support, and spent a lot of time testing the assistant's responses against real customer questions and refining them until they were reliable. Before that, I worked as a frontend developer at Fellor, where I helped cut critical bugs by 25% and page load times by 35%, and as a freelance MERN developer, where I owned delivery from requirements to deployment. I read specs and designs closely, work well with product, design and QA teams, and write clearly. I'm comfortable working remotely and independently to meet deadlines. Stack: React, Next.js, Node.js, Express, FastAPI, PHP, MongoDB, PostgreSQL, Supabase, Git, Jest.…I'm a full-stack software engineer with over five years of contract and freelance experience building production web applications in JavaScript, TypeScript and Python. Recently Ive focused on AI features. On an e-commerce platform for a premium paint retailer, I built product recommendations, an AI customer-service assistant and AI quick-reply support, and spent a lot of time testing the assistant's responses against real customer questions and refining them until they were reliable. Before that, I worked as a frontend developer at Fellor, where I helped cut critical bugs by 25% and page load times by 35%, and as a freelance MERN developer, where I owned delivery from requirements to deployment. I read specs and designs closely, work well with product, design and QA teams, and write clearly. I'm comfortable working remotely and independently to meet deadlines. Stack: React, Next.js, Node.js, Express, FastAPI, PHP, MongoDB, PostgreSQL, Supabase, Git, Jest.

Available to hire

I’m a full-stack software engineer with over five years of contract and freelance experience building production web applications in JavaScript, TypeScript and Python. Recently Ive focused on AI features. On an e-commerce platform for a premium paint retailer, I built product recommendations, an AI customer-service assistant and AI quick-reply support, and spent a lot of time testing the assistant’s responses against real customer questions and refining them until they were reliable. Before that, I worked as a frontend developer at Fellor, where I helped cut critical bugs by 25% and page load times by 35%, and as a freelance MERN developer, where I owned delivery from requirements to deployment. I read specs and designs closely, work well with product, design and QA teams, and write clearly. I’m comfortable working remotely and independently to meet deadlines. Stack: React, Next.js, Node.js, Express, FastAPI, PHP, MongoDB, PostgreSQL, Supabase, Git, Jest.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

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Expert

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Expert

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Intermediate

Intermediate

Intermediate

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Intermediate

Language

English

Fluent

Work Experience

Full-Stack Developer at Berger Paint E-Commerce Platform (Equity / Profit-Share)

March 1, 2026 - Present

Built a complete e-commerce platform for a premium paint retailer, covering the marketplace, admin dashboard, and public website. Implemented AI product recommendations and an AI customer-service assistant with AI quick-reply support, including response testing against realistic customer questions before release. Developed the frontend with Next.js, Tailwind CSS, Mantine, React Query, and Zod, and contributed to a PHP backend API using WebSockets for real-time notifications, live chat, and order tracking. Also supported additional client projects under NDA.

Full-Stack Developer at Converso

February 1, 2026 - May 31, 2026

Developed a full SaaS learning platform where students learn from personal AI assistants, including a separate AI tutor agent for each course. Added assessments after every class to let students verify learning and track progress over time. Implemented authentication, session tracking, personalization, and subscription billing so the platform could operate as a paid SaaS.

Back End Developer at My-Web3Pal

July 1, 2024 - September 30, 2024

Designed and maintained REST and GraphQL APIs for web, mobile, and third-party integrations, connecting traditional services with Web3 functionality. Created database schemas across PostgreSQL, MongoDB, and Supabase, and integrated decentralized storage using Ceramic and IPFS for Web3 features. Implemented secure authentication and session tracking with rate limiting and caching for performance. Wrote unit, integration, and end-to-end tests, handled migrations and backups, and contributed to CI/CD.

Frontend Developer at Fellor

January 1, 2024 - November 30, 2025

Integrated third-party APIs and shipped end-to-end features with over 95% on-time sprint delivery, reducing manual workflows by 30%. Reworked React component architecture and Redux state management, improving stability by reducing critical bugs by 25% and cutting page load times by 35%. Translated high-fidelity UX/UI designs into responsive, accessible production interfaces while working closely with product, design, and QA teams.

Senior MERN Stack Developer at Fellor

January 1, 2024 - January 1, 2025

Expanded platform capabilities by integrating multiple third-party APIs and delivering end-to-end features. Achieved 95%+ on-time sprint delivery and reduced manual workflows by 30%. Improved system reliability by optimizing algorithms and data models (MongoDB, SQL), reducing critical bugs by 25%, improving query performance by 20%, and cutting page load times by 35%. Delivered pixel-perfect UI through Redux and UI/UX translation, collaborated with cross-functional teams, and implemented scalable, production-ready features.

Full-Stack Developer (MERN) at DCAN Real Estate LLC

February 1, 2023 - July 31, 2023

Built a full-stack MERN platform that supports property listing to sale, rental, or investment online, including payment flows and investor planning tools. Developed verification and documentation flows including paid, secure access to original Certificate of Occupancy (C of O) documents. Implemented role-based access control (Super Admin, Admin, Landlord, Investor) and onboarding for first-time users. Added subscription tiers and pay-per-view document access, which became the platform’s main revenue stream.

MERN Stack Developer (Freelance) at Ryan Watts

January 1, 2023 - December 31, 2025

Built and maintained full-stack features using MongoDB, Express, React, and Node.js as the sole developer, owning delivery from requirements through deployment. Optimized algorithms, frontend code, and MongoDB data models, improving query performance by 20%. Automated workflows and added product functionality by integrating third-party APIs across the stack.

Frontend Web Developer at Dowell Research Institutes

January 1, 2023 - January 1, 2025

Developed scalable, user-focused web applications using JavaScript, TypeScript, React, and Python. Built and integrated RESTful APIs, designed responsive interfaces, and translated UX/UI designs into production-ready components. Implemented test-driven development, CI/CD workflows, and agile processes using Jira and Git. Collaborated with backend engineers to optimize frontend performance, improved user experience, and reduced production issues. Drove rapid development of features via robust debugging and code review, shipping features on time with high quality.

Frontend Developer at DoWell Research Institute

May 1, 2022 - November 30, 2022

Built responsive, pixel-perfect interfaces from Figma and Adobe XD designs with cross-browser compatibility and accessibility in mind. Managed application state using React Hooks, Redux, and useContext, coordinating API integration work with backend engineers using Supabase and Prisma/Postgres. Used Next.js SSR, SSG, and API routes for improved performance and SEO, and debugged using Sentry, Chrome DevTools, and LogRocket.

Education

Bachelor of Computer Science at Kwara State University, Malete

January 1, 2022 - January 1, 2026

B.Sc. Computer Science at Kwara State University, Malete, Nigeria

January 1, 2022 - January 1, 2026

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Healthcare, Retail, Real Estate & Construction, Professional Services, Media & Entertainment, Education, Financial Services, Computers & Electronics