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Henry User

@henryuser2

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Full-stack engineer building AI-powered web and mobile apps, turning designs into production-ready features.

Kenya

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What I'm looking for

I seek a user-focused role where I can build and architect production-grade web/mobile apps, mentor teams, adopt modern AI tools, and grow in a collaborative, fast-moving startup environment.

I am a full-stack engineer with hands-on experience building AI-powered web and mobile applications for startups, focused on delivering user-first products. I translate UI/UX designs into production-ready features using modern stacks like React, Next.js, React Native, FastAPI and Django.

I have led and contributed across backend and frontend responsibilities, from architecting APIs and database integrations to optimizing performance and containerizing services with Docker. I introduced OpenAI LLM features into mobile apps and implemented robust API documentation and developer onboarding processes.

As a team lead and first-hire engineer, I established code standards, workflows, and architecture for scalable products, mentored junior developers, and ran code reviews to raise quality. I’ve shipped cross-platform apps with Expo, embedded widgets into Shopify, and integrated multiple external APIs to expand product capabilities.

I thrive in dynamic, remote environments where I can both contribute hands-on code and set technical direction, continuously learning and iterating to produce reliable, maintainable systems that prioritize user experience.

Experience

Work history, roles, and key accomplishments

Full Stack Engineer

Dustid

Mar 2025 - Aug 2025 (5 months)

Built a responsive React + Tailwind web widget, converted it into a JS bundle for Shopify Liquid integration, and developed Express.js backend APIs to integrate widget functionality and reduce checkout latency.

React TailwindCSS Vercel Shopify Liquid Performance Optimization API Design

Backend Developer

Coach Tribe

Feb 2025 - Jul 2025 (5 months)

Engineered and implemented REST APIs in Laravel for an e-learning coaching platform, optimized MySQL queries to reduce latency, and containerized services with Docker to streamline deployments.

Laravel REST APIs MySQL Docker API Documentation Performance Optimization

Lead Full Stack Engineer

Prana

Feb 2025 - Jun 2025 (4 months)

Led development of a cross-platform Expo (React Native) app with a FastAPI backend, integrated OpenAI LLMs for AI features, and mentored junior developers while owning app delivery and architecture.

React Native fastAPI OpenAI API Expo API Documentation Mentorship Python

Lead Full Stack Engineer

Rainy Refunds

Jan 2024 - Jun 2025 (1 year 5 months)

Built the startup tech stack as the first engineer, developed Next.js + React UIs with a Django backend, integrated multiple external APIs, and defined code standards and architecture for scalable engineering.

Next.js React TailwindCSS Django API Integration Coding Standards PostgreSQL

Full Stack Engineer Team Lead

One Sky Collective

Mar 2024 - May 2025 (1 year 2 months)

Resolved critical Android Expo build failures and migrated the repo, integrated Supabase for auth and data, converted Figma designs into production React Native UIs, and led onboarding and technical direction as Lead Engineer.

React Native Supabase Android Build Fixes Figma Repo Migration Team Leadership API Development JavaScript

Education

Degrees, certifications, and relevant coursework

ALX Africa

Certificate, Software Engineering

2022 - 2023

Activities and societies: Program coursework and practical projects in web and mobile development; preparation for software engineering roles.

Completed a Software Engineering program covering full-stack development, software fundamentals, and job-ready engineering skills from Jan 2022 to Mar 2023.