Hi, I'm
Gregory Temwa
Award-winning Software Engineering student at USIU with 3+ years of experience building responsive websites, AI chatbots, and full-stack applications using React, Python, and modern web technologies.
Who I am
About me
I'm Gregory Temwa, a motivated Software Engineering student at United States International University (USIU) with 3+ years of working experience. I'm an award-winning participant in multiple hackathons with a strong foundation in software development, artificial intelligence, machine learning, and web technologies.
Currently based in Nairobi, Kenya, I lead technical strategy as Chief Software Engineer at WebTech Solutions Limited, building production SaaS platforms, AI-powered tools, and developer infrastructure end to end. I also contribute to open source projects at Canonical and Google.
Languages
Frameworks & tools
Systems & infrastructure
Career
Experience
Chief Software Engineer
WebTech Solutions Limited, Nairobi, KenyaFeb 2026 – Present
Lead technical strategy and architecture across client projects, owning CI/CD pipelines, code quality standards, and mentoring engineers while delivering production SaaS platforms and AI-powered tools.
Open Source Developer
Independent — Canonical, Google, ApacheJun 2025 – Present
Contribute Python fixes and features to Canonical's Observability Stack — charm operators tempo-operators and cos-alerter — alongside contributions to Google's sbsim and Apache RocketMQ-Rust, working through code review with upstream maintainers.
Full Stack Software Developer
WebTech Solutions Limited, Nairobi, KenyaDec 2024 – Jan 2026
Built client-facing applications with React, Next.js, TypeScript, and Node.js, designing databases and REST APIs end-to-end and shipping production deployments on Vercel and Railway.
Selected work
Projects
A practice management system for a Kenyan law firm — matters, court diary, trust accounting, billing, documents, and a client portal — with the domain modelled from actual Kenyan statute and its architecture enforced by the linter.
An 11-module personal finance suite — transactions, accounts, budgets, bills, savings goals, debts, loans, assets, wishlist, and habits — with an analytics dashboard visualizing income and expenses.
AI-powered mental health chatbot with multi-LLM support (OpenAI + Mistral), mood tracking, journaling, and mini-games. NextAuth authentication with NeonDB serverless Postgres and Prisma ORM.
Loan management and investment prototype built with Next.js and Supabase for authentication and secure financial interactions.
Writing
From the blog
A rule enforced in one place is not enforced
One rule about client money ended up in four places — the domain, a database trigger, a repository translation, and the ordering of two writes. Each answers a different question, and removing any one leaves a system that passes its tests and is wrong on a busy afternoon.
The failures that cost the most are the silent ones
Two chart bars drew in nothing on a page whose figures had already been checked in a browser. A sign-in refusal rendered as ordinary body text. Neither threw, neither logged, and neither was findable by looking — so I started parsing the stylesheet in a test.
Random fact generator
Click the button to get a random fact from a public API. It's the little moments that make interfaces memorable.
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Get in touch
Let's build something amazing
Based in Nairobi, Kenya. Tell me about your project, and I'll get back to you soon!