Hi, I'm Sergei Romanchuk

Backend Engineer · Python · Rust · High-load systems

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About me

Backend engineer based in Malta, focused on building reliable, observable and high-performance backend systems.

I have strong experience with Python backend development, asynchronous processing, database design, service architecture and production systems.
Currently learning and actively exploring Rust for performance-critical infrastructure, networking and developer tooling.

• Backend engineering with Python for 15+ years
• Experience with Django, FastAPI, LiteStar and async Python
• Working with PostgreSQL, ClickHouse, Redis, MongoDB and SQLAlchemy
• Interested in Rust, distributed systems, observability and high-load APIs
• Currently working at Altenar

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Tech Stack

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What I care about

Clean architecture      ███████████████████░
Async backend systems   ███████████████████░
Database performance    ██████████████████░░
Observability           █████████████████░░░
Rust infrastructure     ███████████████░░░░░
Developer tooling       ████████████████░░░░

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Focus Areas

• Backend architecture
• Async Python services
• API design
• High-load systems
• Event-driven architecture
• Data pipelines
• ClickHouse and analytical workloads
• Rust-powered Python tooling
• Open-source development

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GitHub Stats

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Open Source

I am interested in building practical developer tools, backend infrastructure and libraries that solve real engineering problems.

Current interests:

• Python libraries powered by Rust
• Async HTTP clients
• Queue workers and task processing
• Observability tools
• High-performance data services

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Contact