01 — Contact
Let's build something
Open to full-time roles and freelance projects. The fastest way to reach me is Telegram or email — I usually reply within a day.
02 — About
What I bring to the table
- Back-end developer in Java, Kotlin and Python — high-load services on Spring / Spring Boot and Django / DRF, designed from scratch: service boundaries, data model, API contracts.
- REST APIs documented with OpenAPI; event-driven processing with Apache Kafka and RabbitMQ; OAuth2 / JWT auth with custom Spring Security filters and Keycloak.
- End-to-end integrations with payment, delivery, credit and CRM providers: IPay / WebPay / EPay, Yandex Go, Credit Registry, IDCheck, ERIP, 1C, Bitrix24, QUIK.
- Database design and query optimisation (EXPLAIN ANALYZE, indexes, N+1 fixes), schema versioning with Liquibase / Flyway and safe production migrations.
- DevOps: Docker, GitLab CI/CD, Nginx, Linux; monitoring and logging with Prometheus, Grafana, ELK / Sentry.
- Testing: JUnit, Mockito, PyTest and integration tests with Testcontainers — 65% of services covered.
- Mentoring and onboarding of juniors, technical interviews; introduced AI agents (Claude Code / Codex) into the team.
03 — Skills
Tech stack
Languages
Frameworks & Libraries
Databases
Messaging & APIs
DevOps & CI/CD
Monitoring & Logging
Testing
Build & Tools
Experience matrix
Years of hands-on experience and the year each was last used.
04 — Experience