Vadim Permiakov
Senior Java Developer @Unlimit
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WORK HISTORY
Senior Java Developer @Unlimit
Limassol, CY
I engineered key features for a high-volume payment system processing transactions/minute, including third-party integrations and complex calculation engines. Leading a full platform modernization, I migrated legacy microservices and built new cloud-native services on AWS, while upgrading the tech stack to Java 19 to boost developer productivity by 75%. My strategic optimizations resulted in a 90% database performance gain, 120% faster response times, and a 400% increase in system durability and availability.
EDUCATION
Saint Petersburg State Electrotechnical University "LETI"
Master of Computer Applications - MCA, Automation Engineer Technology/Technician
ABOUT VADIM PERMIAKOV
Senior Java Developer with 15+ years of experience architecting high-scale distributed systems. Core expertise includes Microservices, Spring Boot, AWS, and SQL optimization, with a strong focus on CI/CD pipelines utilizing Kubernetes (K8s). I focus on writing clean, maintainable code by applying SOLID, DRY, KISS, and YAGNI principles, design patterns, and clean architecture. Experienced in test-driven development using JUnit and leveraging AI tools to boost code quality and productivity.I\'m an engineer who believes in building practical solutions that truly help people. I value clean code and thoughtful design because they make projects easier to maintain and evolve over time. I take a hands-on, pragmatic approach - focusing on simplicity and avoiding unnecessary complexity. With broad experience across the Java ecosystem, I\'m focused on problem solving first - finding the right solution.
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