Artem Puzikov Email & Phone Number

Jakarta, Indonesia

Jakarta, Indonesia

At OpenWay, I focus on developing ACS (Access Control Server) and 3D Secure Server solutions aligned with EMVCo certifications. My role involves not only writing robust, maintainable code to pass these certifications but also delivering new features that enhance our products. I'm passionate about ensuring the highest quality of code, which is why I always cover my work with comprehensive tests.Key Achievements: - Built an internal library to streamline EMVCo message validation, significantly boosting efficiency. - Modernized the project by upgrading 15-year-old dependencies, resulting in better performance and maintainability. - Actively shared my knowledge of clean code principles and design patterns with the team, leading to a cleaner, more maintainable codebase.I thrive in collaborative environments where continuous improvement and knowledge-sharing drive both the product and the team forward.

As a key member of a team managing six billing-related services, I played a critical role in enhancing system reliability and performance: - Designed, developed, and launched advanced features with comprehensive test coverage, thorough documentation, and real-time monitoring alerts. - Refactored complex business logic by migrating Kafka topics, introducing batch processing, improved error handling, and detailed documentation. - Resolved race conditions in API methods, ensuring smoother and more reliable data handling. - Developed and optimized complex SQL queries to enhance data processing efficiency. - Integrated with multiple external services through APIs, expanding system capabilities and interoperability. - Diagnosed and corrected various Spring configuration issues, significantly improving application stability.

Санкт-Петербург, Санкт-Петербург, Россия

Contributed to a fintech startup as an outstaff developer, collaborating closely with a senior programmer to deliver high-quality code in both Java and Kotlin: - Boosted test coverage to 90%, significantly enhancing code reliability and reducing potential errors. - Diagnosed and resolved complex bugs, improving overall system stability. - Optimized application performance by profiling and refining methods, resulting in faster execution times. - Integrated third-party APIs, expanding the platform’s functionality and enhancing user experience. - Designed and implemented a cache layer for frequently used methods, reducing response times and improving efficiency.

Москва, Москва, Россия

Developed MVP for the yandex ecosystem. Made a project from scratch in a team of 12 people.- Implemented multiple roles security;- Reviewed code;- Designed top-level architecture;- Added continuous deployment for the product.