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Stephen Juma

@stephenjuma1

Full-Stack & Applied AI Software Engineer at SelfAwareTech, building multi-tenant AI operations products with permission-aware retrieval and citations.

Kenya

Message

At Cell Collective / University of Nebraska-Lincoln, I delivered 20+ production features for a scientific modelling platform supporting 10,000+ researchers and users. I also reduced monorepo build times by approximately 40% and supported biological modelling and simulation workflows.

At SelfAwareTech, I build and operate products including Tasko, a multi-tenant AI operations platform with permission-aware retrieval, citations and approval flows. I’ve also built products across logistics, marketplaces and offline-first retail, including Haulio, Nyumba Services and Stok.

Experience

Work history, roles, and key accomplishments

Current

Founder & Independent Software Engineer

Current

SelfAwareTech

Feb 2021 - Present (5 years 8 months)

Build and operate production products end to end across AI, logistics, marketplaces, mobile and offline-first retail. Built Tasko, Haulio, Nyumba Services and Stok.

Angular TypeScript Supabase PostgreSQL Pgvector RAG OpenAI Ollama OAuth Vercel React Native Expo Firebase Next.js Socket.IO NestJS PostGIS CI CD Observability

Full-Stack Software Engineer

Cell Collective / University of Nebraska-Lincoln

Jan 2023 - May 2026 (3 years 4 months)

Delivered 20+ production features for a scientific modelling platform supporting 10,000+ researchers and users. Worked across a large monorepo and reduced build times by approximately 40%.

React TypeScript Vite Storybook NodeJS Python fastAPI Celery Redis Docker Gitlab CI TurboRepo NPM Workspaces

Senior Software Developer

EnigmaScore

Feb 2019 - Nov 2022 (3 years 9 months)

Led full-stack development of an enterprise recruitment platform using Angular, TypeScript, Java/Spring Boot and PostgreSQL. Worked with GPT-3 on AI-assisted interview scoring and supported junior developer training.