I'm Sifen, a full-stack engineer based in Addis Ababa, Ethiopia. I help companies build production TypeScript applications that ship on time, scale cleanly, and hold up under real users.
I started writing code to figure out how things actually worked: small servers, scrapers, half-finished games. That curiosity turned into a career. Today I build full-stack TypeScript products with the same instinct: understand the moving parts, focus on what matters, and ship something that holds up in production.
I build products from first commit to production. Frontend, backend, integrations, deployment, and the small details that make software reliable. I care about fast systems, clean architecture, and solving the messy problems that usually show up right before launch.
what i'm focused on
loading live GitHub data…
No buzzword soup. These are the things I've actually shipped to production this year, organized so you can scan the layer that matters to you.
Languages
Frontend
Backend
Data & infra
Workflow
Six projects I'd point a recruiter or future collaborator at first. Each one shipped, and each one has the engineering decision I'm proudest of called out in the case study.
play store submission auditor.
An AI skill that runs strict pre-submission audits of Android apps against Google Play policies, surfacing rejections before they reach reviewers.
plus.
A modern blog client with full auth, social interactions and search. My proving ground for the React data-layer playbook I now ship by default.
attio crm: landing rebuild.
A Figma design rebuilt pixel-tight in Next.js with Framer Motion. A study in how marketing pages should actually feel under your finger.
auth: express middleware.
A production-ready authentication middleware for Express that gives you sessions, JWTs, password reset and role gates without building the same plumbing for the eighth time.
mov to mp4.
A local-first .mov to .mp4 converter. Drop a QuickTime file in the browser, watch real progress, download the result — nothing leaves your machine that doesn't have to.
blog api.
A RESTful blogging backend with auth, search, filtering, sort and pagination. The kind of API I wish more tutorials actually shipped.
Long-form writing on the engineering decisions I keep making: auth as a library, client state vs. server cache, runtime-aware tooling. Updated whenever I notice a pattern repeat across projects.
I'm currently open to full-stack roles, freelance engagements and product collaborations. Fastest replies come through email or Telegram.
A year of commits, pull requests and reviews on GitHub.