Senior Backend Engineer with 8+ years of experience

• 🏗️ Built core banking systems from scratch: end-to-end ownership of transactions service, PostgreSQL schema design, microservices architecture
• 💳 Payment & high-load services expert: sagas, idempotency, PCI DSS/KYT compliance
• 🔧 Kotlin SDK development and complex production integrations
• 👨‍🏫 Mentoring & leadership: code reviews, system design, team guidance

Languages & Frameworks:

• Kotlin (Coroutines, Virtual Threads) | Java 17+ | Spring Boot | Micronaut

Databases & Tools:

• PostgreSQL (jOOQ, Liquibase) | MongoDB | Redis | MySQL

DevOps & Infrastructure:

• Docker | Kubernetes | GitLab CI | Jenkins | TeamCity

Testing & Quality:

• JUnit | Testcontainers | MockK | 90%+ test coverage

Observability:

• Grafana | Loki | Elasticsearch | Sentry | Metrics & Tracing