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sfat/README.md

Andrei Sfat

Principal engineer and independent consultant in Cluj-Napoca, Romania. Backend systems, cloud infrastructure and production performance since 2011.

Recent work

  • A platform built from zero. AWS, Terraform and EKS for a real-money sports product in the US, with CI on GitHub Actions. I led the DevOps team that runs it.
  • Latency, traced end to end. Followed slow requests from the phone to the database on a live sports app and lined up the few fixes that matter: query patterns, payload size, caching.
  • A hacked publication, recovered. Brought back every deleted article after a CMS exploit, then patched the servers and put them behind Cloudflare.

How I help teams: get more out of AI with agentic coding and review gates 路 cut latency 路 harden infrastructure 路 automate manual work 路 CI/CD you can trust. Details at sfat.me.

Things I built

  • Voyagen: a travel packing app for iOS with real-time sync. React Native, Hono, Postgres.
  • Meal Plan: a weekly meal planner with recipes and calories, in English and Romanian.

Before: lead developer on a crypto exchange, open-source developer at Snyk, team lead at iWelcome (identity platform), Java developer at 3Pillar Global.

Writing: sfat.me/blog, on building software, running it in production, and staying private online.

Contact: sfat.me 路 LinkedIn

Pinned Loading

  1. raspberry-pi-server-essentials raspberry-pi-server-essentials Public

    Essential scripts to setup on raspberry pi. WoL, ping to check if internet is down, etc.

    Shell

  2. elixir-passphrase-diceware-generator elixir-passphrase-diceware-generator Public

    Passphrase/password generator using diceware written in Elixir

    Elixir 7

  3. hardhat-tutorial hardhat-tutorial Public

    hardhat tutorial based on https://hardhat.org/tutorial

    JavaScript

  4. programming-elixir-exercises programming-elixir-exercises Public

    Exercises from Programming Elixir >= 1.6 while reading the book

    Elixir

  5. craft-graphql-apis-in-elixir-with-absinthe-exercises craft-graphql-apis-in-elixir-with-absinthe-exercises Public

    Exercises from Craft GraphQL APIs in Elixir with Absinthe book

    1

  6. cacheable-redis-spring-presentation cacheable-redis-spring-presentation Public

    Cacheable and Redis Spring Presentation

    Vue