• Managed the largest equestrian competition platform in the US and Canadian markets.• Led the re-architecture of a 15-year-old system, enabling a smooth transition to a new tech stack withzero downtime.• Developed a multi-tenant finance system, empowering users to initiate refunds independently,streamlining money transfers and improving overall efficiency in financial processes. This resulted insubstantial reductions in accounting expenses.

• Recruited the team, led the tech side of a discovery phase, and provided final proposal outliningmilestones, the chosen tech stack and application flow.• Established development and production infrastructure.• Ensured seamless project execution, meeting all milestones on schedule.• Implemented features include evidence-based dispute setup, video conferences with breakout rooms,screen sharing, real-time private/group chat, Ethereum integration for blockchain storage… Show more • Recruited the team, led the tech side of a discovery phase, and provided final proposal outliningmilestones, the chosen tech stack and application flow.• Established development and production infrastructure.• Ensured seamless project execution, meeting all milestones on schedule.• Implemented features include evidence-based dispute setup, video conferences with breakout rooms,screen sharing, real-time private/group chat, Ethereum integration for blockchain storage, real-timedocument signing, email notifications, subscription-based payment. Show less

• Developed the architecture for building Domain Name registration API on large scale using OpenSRS API.• Implemented the Behavior Driven Development (BDD) testing approach.

• Contributed to the development of the next generation HR platform emphasizing communication andcandidate engagement as core features.• Implemented a campaign scheduler microservice for managing SMS, MMS, and email campaigns.

• Oversaw project delivery, team management and recruiting new team members.• Contributed to the development of a search retargeting platform for online advertising, integrating it with several major third-party companies.• Built a platforms' engine microservice capable of receiving 2000 requests/sec with auto-scaling capabilities.• Developed many PHP services as background processes performing various tasks from data collecting and processing to synchronization with third-party… Show more • Oversaw project delivery, team management and recruiting new team members.• Contributed to the development of a search retargeting platform for online advertising, integrating it with several major third-party companies.• Built a platforms' engine microservice capable of receiving 2000 requests/sec with auto-scaling capabilities.• Developed many PHP services as background processes performing various tasks from data collecting and processing to synchronization with third-party services.• Built a system for monitoring various parts of a platform like comprehensive tests simulating real users as a part of a production monitoring system using Selenium.• Developed a user tracking system that was used for profiling and behavioral ad targeting. Show less

• Oversaw project delivery, team management and recruiting new team members.• Contributed to the development of a real-time bidding and product retargeting platform for advertising following the iAB standards.

• Developed a system capable of deciding whether to bid and if so choosing the appropriate ad and delivering it in under 80ms (the available time window).• Created a custom, fully-featured auto-scaling system to optimize the costs of the running platform.• Built a user tracking system that was used for profiling and behavioral ad targeting.

• Oversaw project delivery, team management and recruiting new team members.

• Led the DokoDare project, a mobile/web social networking application.• Led the Ticketing project, providing a mobile solution for selling and validating event tickets.

• Developed a software for real-time management of taxi vehicles.

• Contributed to the development of various small-scale web applications.