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About

Full-stack engineer, systems builder, lifelong learner.

Mark Otuya

I'm a senior full-stack & AI engineer with 4+ years building and shipping production systems. I'm currently at Purple, where I own end-to-end architecture for self-hosted Node.js/TypeScript applications and build Wix CLI marketplace apps on the Wix SDK. Before that, I led the Vue-to-React migration at Jobin.cloud and solo-built ProxySock, a B2B SaaS platform handling 3,000+ daily transactions at 99.9% uptime โ€” architecture, backend, and infrastructure, end to end.

My core stack is React, Next.js, TypeScript, Node.js, FastAPI, and PostgreSQL, with a deep focus on AI/LLM systems โ€” RAG pipelines, structured output enforcement, and multi-agent orchestration across OpenAI, Claude, Gemini, and Groq. Claude Code and Cursor are part of my daily workflow, not a novelty. I care about correctness and failure modes as much as shipping speed.

Currently open to new opportunities.

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4+ Years Shipping

From solo-owned B2B SaaS platforms to team-scale migrations โ€” production systems, not demos.

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AI/LLM Systems

RAG pipelines, structured output enforcement, and multi-agent orchestration with OpenAI, Claude, Gemini, and Groq.

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Computer Science

BSc (Hons) at Edinburgh Napier University, plus a 1,500+ hour full-stack bootcamp at Microverse.

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Remote-First

Worked across teams in Israel, Ireland, Canada, and Nigeria โ€” fully remote, fully async.

Education

Edinburgh Napier University logo

Edinburgh Napier University

BSc (Hons), Computer Science

2022 โ€“ 2026 ยท Scotland

๐Ÿ’ป

Microverse

Full-Stack Software Development Bootcamp

2022 - 2023 ยท Delaware, USA ยท Remote Bootcamp

Let's Connect

Open to new opportunities and interesting freelance work. My inbox is always open.

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