Senior Backend / Platform Engineer
Aleksandr
Protasenya.
Backend systems, cloud infrastructure, and AI-assisted developer workflows — built to stay up.
Profile
Seven years at the seam of backend and infrastructure.
Senior software engineer with strong expertise in Python, PostgreSQL, AWS, Terraform, Docker, Kubernetes and CI/CD. Experienced in designing backend services, managing infrastructure as code, improving deployment reliability, working with authentication systems, and integrating AI-assisted tools into engineering workflows.
Core expertise
A stack chosen for durability, not novelty.
Years of compounding work on backend services, cloud platforms, databases and developer tooling — picked, tuned, and kept honest under load.
Python services that hold up.
AWS, Terraform, repeat.
PostgreSQL, handled.
Just enough, well-built.
Agents in the loop.
Engineering impact
Eight things actually shipped.
- Designed and maintained backend services using Python, FastAPI, Django, SQLAlchemy and PostgreSQL.Backend · Architecture
- Managed AWS infrastructure with Terraform across ECS/Fargate, ALB, WAF, IAM, Aurora PostgreSQL, and CloudWatch.Cloud · IaC
- Built and maintained CI/CD workflows with GitHub Actions and self-hosted runners.Delivery · DevEx
- Worked on PostgreSQL schema design, Alembic migrations, logical replication, materialized views, and performance troubleshooting.Databases · Perf
- Troubleshot production issues across Docker, Kubernetes, Linux, networking, authentication, and database layers.Reliability · Incidents
- Implemented and debugged OIDC / OAuth2 authentication flows using IAM Identity Center, NextAuth and Zitadel.Identity · Security
- Automated operational workflows — log export, decompression, sorting, infrastructure updates, and database maintenance.Automation
- Explored and integrated AI-assisted development workflows using Claude Code, OpenAI Codex, and coding-agent tools.AI · Tooling
Engineering ownership
What I take responsibility for.
Featured articles
Things I've been writing about.
News 6
**August 2025 has been a whirlwind month in AI.** Major players rolled out cutting-edge products, unveiled powerful new models, and struck bold business deals. In this post, we’ll narrate the most imp...
Read the piece ›Как писать асинхронный код, который не «блокирует» event-loop
**Как писать асинхронный код, который не блокирует event-loop** ## **Принципы работы event loop в Python (asyncio)** В основе любой асинхронной программы на Python лежит **цикл событ...
Read the piece ›News 5
**AI Developer News Roundup – June 2025** ## **Cursor: Massive Funding and a New Ultra Plan** Cursor, the AI-augmented code editor by Anysphere, announced a staggering **$900 million...
Read the piece ›Let's talk.
Interested in collaboration, backend / platform engineering roles, or technical consulting? Happy to chat about systems design, infrastructure, or AI-assisted engineering.