Magomed Dakhkilgov

enior Java Backend Engineer (6+ years) | Spring Boot / Kafka / Kubernetes Built and scaled Spring/Kafka platforms to 40k req/min at <70ms p95 and 99.98% uptime. Led zero-downtime Postgres migrations (11 to 15), cut p95 by 20–30%, introduced SLO-based alerting and exactly-once. Key wins: • Handled 8× peak traffic with Redis rate limiter & PostgreSQL partitioning, no SLA drop. •-30% latency on a telco core service after re-architecting to Spring Boot 3 + PostgreSQL 15. • +30% throughput during zero-downtime blue/green migration (PostgreSQL 11 → 15). •-35% heavy SQL load via deep-index tuning & query refactor. • Removed 12 critical CVEs while migrating legacy Spring Boot 2, yielding -20% p95. Tech stack: • Backend & Frameworks: Java 11/17, Spring Boot 3, Spring Framework, Spring Cloud, GraphQL, REST, gRPC • Data & Messaging: PostgreSQL, Redis, Hibernate/JPA, Liquibase, JDBC, Apache Kafka (+Streams), RabbitMQ • Cloud & DevOps: Kubernetes, Docker, AWS, GitLab CI/CD, Bash/Linux, Prometheus, Grafana • Security & Quality: Spring Security, OAuth2/JWT, Keycloak, TLS/SSL, JUnit, Mockito