• Worked on the authorization strategy for payment-card transactions.

• Refactoring and bugfixing.

• Designed the API and the database.

• Developed 3 core services.

• Provided expertise on authentication protocols, nginx configuration and deployment strategies.

• Participated in negotiations with third party service providers.

• Built number of micro-services that introduced new features and functionality to the company's IoT platform: push notifications, sensor alerts, integration with virtual assistants.

• Maintained legacy codebase, including fixing of critical issues.

• Provided production support.

• Handled basic DevOps tasks.

• Provided integration support for third party vendors.

• Interviewed and onboarded new engineers to the team.

• Android OS vendor customization and country adaptation to the environment of CIS and Baltic mobile network operators.

• Developed testing tools and service utilities.

• Prepared firmware releases.

• Led a team of 4 engineers.

• Facilitated communication with overseas teams.

• Worked on several smartphone models, including LG Optimus 2X – world's first smartphone with dual-core processor.