Arman G.

Senior Java/Kotlin Engineer with 7+ years delivering production-grade systems at EPAM and Moscow Exchange including a 40% API response improvement, Kafka event processing under 200ms, and growing unit test coverage from 45% to 90%. I specialize in building high-performance, cloud-native backends using Java 21, Spring Boot, and AWS and increasingly integrating AI/LLM capabilities (LangChain, RAG, Vector Search) into enterprise systems. What I bring to your project: — Backend architecture: Spring Boot, Spring Cloud, Spring Microservices, gRPC, Kafka, RabbitMQ — Cloud & DevOps: AWS (EC2, S3, Kinesis, CloudWatch), Docker, Kubernetes, Terraform, GitLab CI/CD — AI integration: LangChain, RAG pipelines, Vector Search, OpenAI/Claude APIs — Frontend: Angular 17, ReactJS, Thymeleaf (full-stack delivery when needed) — Databases: PostgreSQL, MongoDB, OracleDB, Redis, Elasticsearch I've worked across fintech (Moscow Exchange clearing systems, trade processing), healthcare enterprise (EPIC integrations), and commercial SaaS (EPAM) industries where reliability and security are non-negotiable. I follow OWASP security standards, write tests first (JUnit, Mockito, Rest Assured), lead code reviews, and communicate clearly in English throughout the project. If you need a senior engineer who can take a feature from architecture to production — independently and reliably let's talk.