Built and maintained enterprise-grade backend systems using Java and Spring, with hands-on experience in relational databases, cloud deployment, and game engine technologies for electronic gaming platforms.
Senior Java developer with 18+ years of experience building enterprise-grade backend systems using Java and Spring. Experienced in designing transactional, database-driven applications with strong focus on reliability, performance, and maintainability in production environments.
Experience: 10+ years
Extensive experience using Git for version control in collaborative environments, including branching strategies, pull request workflows, code reviews, and conflict resolution across distributed teams.
Experience: 10+ years
Over 10 years of experience working with PostgreSQL in enterprise environments, including schema design, query optimization, indexing strategies, and transactional data management. Familiar with internal mechanisms such as WAL (Write-Ahead Logging), concurrency behavior, and performance considerations in production systems.
Experience: 10+ years
Extensive experience developing microservice and monolithic applications using Spring Boot, including REST API design, data access with JPA, transaction management, validation, exception handling, and secure authentication mechanisms. Emphasizes performance, reliability, and production readiness.
Experience: 5 - 10 years
Working experience with JavaScript for frontend development, API integration, and interactive web application features.
Experience: 5 - 10 years
Experience using HTML to structure and develop web interfaces, ensuring clean markup, semantic structure, and proper integration with CSS and JavaScript in full-stack applications.
Experience: 1 - 2 years
Experience using Subversion (SVN) for version control in legacy and enterprise environments, including branch management, merging, and collaborative development workflows.
Experience: 10+ years
Throughout my 18+ years of experience, I have written and optimized SQL queries to support large-scale, production-grade systems, with a strong focus on performance, indexing strategy, and data integrity.
Extensive hands-on experience with SQLite in production environments, designing efficient schemas, optimizing queries, and managing embedded transactional data stores for high-reliability applications. Applied performance tuning and indexing strategies to ensure fast, lightweight data access in constrained or distributed environments.
Experience: 1 - 2 years
Provisioned and managed AWS EC2 instances running Ubuntu, handling server configuration, storage allocation, DNS setup, and deployment of application environments. Experienced in configuring production-ready virtual machines, networking basics, and system-level administration.
Experience: 1 - 2 years
Configured and maintained Azure VM environments, handling network settings, access controls, and application deployments. Supported production deployments by managing virtual machine resources and ensuring reliable system connectivity.
Experience: 5 - 10 years
Extensive experience working in Linux environments for server administration, application deployment, system configuration, and troubleshooting. Comfortable with command-line operations, process management, networking basics, and performance-oriented system tasks in production environments.
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