Technologies: Java 8-21, C++, AWS, Async Profiler, Amazon Profiler, JCK, JTreg, JUnit, internal Amazon tools.

• Developed a runtime enabling 4.5K services across more than 2.6MM hosts to run on the latest LTS JVM without any code change;
• Secured upgrade of services handling 350MM+ requests per day, increasing TPS by 13-20%, reducing GC time by 30-80%, CPU utilization by 10-30% and latency by 15-25%;
• Maintained operational excellence by performing Correction of Error (CoE) and Operational Readiness Review (ORR) processes;
• Coached junior engineers through pair-programming and delivered technical documentation improving onboarding for new members;
• Enhanced automated testing solutions and improved build infrastructure;

Technologies: Java 11, Spring Boot, TypeScript, React, Oracle SQL, JDBC, JPA, Liquibase, Keycloak, Junit, Mockito, Docker.

• Delivered and maintained document handling service (processing 500K documents/year), recruitment systems, CERN phone book (1500+ unique daily visits);
• Automated HR and recruitment processes, handling 3,000+ registrations per year;
• Enhanced software quality and processes through agile practices, pair programming, refactoring etc;
• Mentored junior engineers and colleagues;

Technologies: C#, .NET, C++, TypeScript, WPF, Entity Framework, MEF, CEF (Chromium Embedded Framework)/CEFSharp, Microsoft Media Foundation, SharpDX, NUnit, NSubstitute.

• Developed Tobii Pro Lab - a world-leading eye-tracking software application.
• Delivered core features that enabled multiple market segments including early autism research, web UX research.
• Participated in and led decision-making processes related to software architecture, delivery strategy, and UX;
• Presented at the Develop Beyond 2019 eye-tracking/R&D conference in Stockholm, Sweden;

Technologies: C#, .NET, Java, WPF, Xamarin, VSTO, COM, Entity Framework, SQLite, MySQL, NUnit.

• Designed and delivered solutions including Outlook AddIns, desktop/mobile applications, data aggregation and security tools;

• Mentored and supported the mobile development team;