Developer Experience Engineer focused on building tools, workflows, and AI-powered systems that help teams ship better software faster.

I work across JavaScript, TypeScript, Python, React, Next.js, Node.js, and AI engineering to improve how developers build, test, automate, and deliver products. I care about clean interfaces, reliable systems, clear documentation, and tooling that removes friction from engineering teams.

• Developer experience: Internal tools, automation, documentation, workflows, and engineering systems that make teams more effective.
• Frontend engineering: React, Next.js, TypeScript, responsive UI, reusable components, and accessible user experiences.
• Backend development: Node.js, Express, GraphQL, REST APIs, authentication flows, and data-driven applications.
• AI engineering: Practical use of LLMs, AI-assisted development workflows, OpenAI Codex, Claude, Cursor, and automation-first engineering.
• Product mindset: I build with usability, maintainability, performance, and real-world business value in mind.
• Collaboration: Open to DX, developer tools, AI tooling, SaaS, web platform, startup, and product-focused engineering opportunities.

• 🌍 Based in Nairobi, Kenya
• 🖥️ Portfolio: mulumia.com
• ✉️ Email: barakamulumia@gmail.com
• 🤝 Open to collaboration on developer tools, AI tooling, SaaS products, and platforms that solve practical problems
• ⚡ Favorite work: developer experience, automation, AI-assisted engineering, JavaScript, TypeScript, Python, React, Next.js, and Node.js

Languages

AI Engineering

Frontend

Backend and Data

Tooling