Backend & infra engineer
for systems
that can't fail_
I'm Temkin Mengistu. I build the backend your company runs on — trusted with banking, healthcare, and telecom infrastructure.
Toptal top-3% · Co-founder & Tech Lead at Snapwre · 7+ years end-to-end.
Where I've shipped.
Real employment and lead roles, most recent first. Tap to expand each.
Builds, tools, open source.
Side projects, founder-mode builds, and OSS — ordered by impact.
Open-source initiative building AI training data for 80+ Ethiopian languages. Crowdsourced voice, text, and translation via Telegram bot. 1M+ sentences collected across Amharic, Afaan Oromo, Somali, Tigrinya.
Booking platform with dynamic pricing + no-show penalty for salons, dental clinics, wellness, med spa, personal training. Free tool live.
Batteries-included auth framework: JWT + session + OAuth + email/phone verification. For developers who don't want to wire auth from scratch.
Shipped 130+ production scrapers for an AI search engine (Amazon, eBay, Walmart, Nike, Adidas). Self-healing 24h drift detection. SQS → vector DB pipeline.
Wrote the official Python SDK for Ethiopia's largest payment gateway. Invited by Chapa to present Telegram-payment integration to their developer audience.
Built the bank's public website and serverless infrastructure for adjacent services. Banking-grade reliability, audit-ready.
Open-source Telegram bot for Google Translate. 10,000+ users in the first 3 months.
Open-source Python SDK for HahuSMS (Ethiopian SMS API). Published on PyPI.
Four things, done deeply.
Regulated & mission-critical backend
HIPAA-aware healthcare systems, banking-grade infra, national payment infrastructure (Chapa SDK), telecom billing pipelines. Work where money, health data, or uptime are on the line.
Backend systems that scale
APIs, data pipelines, async workers, multi-tenant SaaS architecture. Python (FastAPI, Django), Go (Fiber, Gin), Node/TS (Hono, Nest).
Cloud infrastructure & DevOps
AWS (Lambda, Fargate, Batch, Glue, Athena, S3, DynamoDB, CloudFormation), Cloudflare Workers, Docker, CI/CD. Also GCP, Azure, Hetzner. I've cut AWS bills by 25% on real production workloads.
Tech leadership
Lead Developer on multi-tenant platforms across 10+ teams at Snapwre. Architecture, engineering standards, team code quality, 30+ live deployments. Ran a 3-track mentorship program — 120+ mentees.
Tools I reach for.
Transparent by default.
What they say.
User-driven gallery — tap the arrows, not a timer.
“Temkin is an exceptional developer and AWS expert, known for his ability to handle full end-to-end projects with expertise in Python and serverless technologies. One standout momen…”
“Chapi has made a significant impact on our startup. He set up and managed our development environment, architected our entire backend ingestion infrastructure, and optimized our in…”
Off the job.
Latest writing.
Notes on backend, cloud, and the things I wish someone had written down before I ran into them.
