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Achievement: Pull Sharkx3Achievement: YOLOAchievement: QuickdrawAchievement: Arctic Code Vault Contributor

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andy-takker/README.md

Sergey Natalenko — @andy-takker

Role Location

Backend reliability, performance and event-driven systems in Python & Go.
I work across architecture, implementation, integration testing and production troubleshooting,
and I prefer decisions that can be checked: a benchmark, a failure test, a measured change.
I write about backend engineering on Habr.

📫 How To Reach Me

Email LinkedIn Habr

🧰 Tech Stack

Languages Python Go SQL
Backend Litestar FastAPI FastStream aiohttp asyncio
Databases PostgreSQL Redis ClickHouse
Messaging NATS Apache Kafka RabbitMQ
Infra / DevOps Docker Docker Swarm Kubernetes Nginx GitHub Actions GitLab CI
Observability Prometheus Grafana OpenTelemetry
Frontend React Next.js TypeScript
Tools / OS Linux Neovim Git

🔬 Selected Engineering Work

⚡ asyncly
stars language

Typed HTTP clients and realistic integration-test servers: retries, timeouts, observable HTTP behaviour.

 🚀 example-litestar-service
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Reference backend service: layered architecture, Dishka DI, JWT auth + RBAC, NATS via FastStream, integration tests, observability.
📏 slow-tests-benchmark
stars language

Scripts and raw results behind the Habr series on speeding up pytest integration suites (3,316 tests: 30 min → under 2 min locally).

 🐘 pg-optimization
stars language

PostgreSQL 18 tuning experiments: OS/DB settings, pooling, replication, WAL, autovacuum, query plans — stands, measurements, graphs.
🧱 example-web-service
stars language

Example async Python web service (Litestar + FastStream/NATS) with clean layered architecture, DI and import-linter.

📝 Latest Articles on Habr

➡️ Read more on Habr

👨‍🏭 Recently Worked On

  • andy-takker/asyncly - Typed aiohttp HTTP clients + pytest fixtures for realistic mock servers
  • aldem2k00/rag-reliability - Assessing the Reliability of Responses in RAG Systems @SMILES-2026
  • andy-takker/example-web-service - Example async Python web service (Litestar + FastStream/NATS) with clean layered architecture, DI and import-linter
  • andy-takker/pg-optimization - PostgreSQL 18 tuning experiments: OS/DB settings, pooling, replication, WAL, autovacuum, query plans — stands, measurements, graphs, conclusions
  • andy-takker/slow-tests-benchmark - Benchmark scripts and raw results for an article on speeding up pytest integration tests (session-scope fixtures, TRUNCATE vs DELETE, argon2)

🔨 Recent Pull Requests

📊 Statistics
Inspired by

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  1. example-web-service example-web-service Public

    Example async Python web service (Litestar + FastStream/NATS) with clean layered architecture, DI and import-linter

    Python 11 1

  2. asyncly asyncly Public

    Typed aiohttp HTTP clients + pytest fixtures for realistic mock servers

    Python 6 2

  3. example-litestar-service example-litestar-service Public

    Production-ready Python web service template on Litestar — clean architecture, dishka DI, JWT auth + RBAC, NATS via FastStream, observability out of the box

    Python 5

  4. pg-optimization pg-optimization Public

    PostgreSQL 18 tuning experiments: OS/DB settings, pooling, replication, WAL, autovacuum, query plans — stands, measurements, graphs, conclusions

    Shell

  5. slow-tests-benchmark slow-tests-benchmark Public

    Benchmark scripts and raw results for an article on speeding up pytest integration tests (session-scope fixtures, TRUNCATE vs DELETE, argon2)

    Shell