Specialized in database migrations, query optimization, and performance tuning for enterprise-scale systems.
Senior software engineer with 10+ years of experience specializing in database optimization, migration strategies, and backend system architecture.
Proven expertise in transforming legacy database systems, reducing query execution times by up to 90%, and implementing zero-downtime migration strategies for enterprise fintech platforms handling millions of daily transactions.
Wordpress and Drupal sites
E-commerce sites
Paramedic
Governmental software in Estonian Ministry of the Interior
Banking & Fintech Solutions
10+ years designing and optimizing relational databases. Expert in PostgreSQL, MySQL with focus on query performance and data integrity.
Specialized in identifying bottlenecks, optimizing slow queries, and implementing caching strategies for high-throughput systems.
Designing RESTful APIs and event-driven architectures that handle millions of transactions in fintech environments.
Deep proficiency in JVM ecosystems, building scalable microservices with Spring Boot, Hibernate, and modern design patterns.
5 years crafting native Android applications with Kotlin, Jetpack Compose, and modern MVVM architecture.
Proven track record of executing complex database migrations on production systems without service interruption.
Deep expertise in database technologies and JVM ecosystem, with proven results in enterprise environments.
Highlights from enterprise projects in fintech and banking sectors, demonstrating expertise in database architecture and system optimization.
Architected database layer for a payment platform processing millions of daily transactions. Implemented query optimizations that reduced average response times by 55%.
Led database migration projects for major banking institutions, transitioning legacy systems to modern architectures while maintaining 100% uptime.
Developed native Android applications for banking clients, implementing secure transaction handling and real-time synchronization with backend systems.
Note: Project details generalized for confidentiality. Experience includes work with leading European fintech companies and banking institutions. Full project portfolio and references available upon request.
Looking for a senior developer to help with your database architecture, backend systems, or Android application? I'm open to new opportunities and collaborations.