Omelian Levkovych Email & Phone Number

Germany

Berlin, Germany

As a member of Team Account, I actively participate in the development process while maintaining a customer-centric mindset to ensure our initiatives are aligned with the needs and expectations of our clients:- Drove performance optimizations: After aligning with customer needs, transitioned to daily asynchronous processing for datasets with hundreds of millions of records, enhancing p95 page load speeds by more than 500% to under 100 milliseconds.- Led the creation of a customer-focused public API for data sources, enhancing client data access and improving platform adaptability.- Implemented access control features: Contributed to updating access control and space management, enhancing security and user experience across the platform.

Poland, Remote

1. Migrated from legacy codebase to microservices:- Upgraded and migrated critical .NET applications from AWS Lambda and Windows Services (on-prem) to GKE, achieving a 150% improvement in performance (resolving cold start problems, queries optimization, adding caching, etc) while incurring an increase in minor maintenance costs as a necessary tradeoff to mature the system and provide long-term benefits.- Adopted a hexagonal architecture approach during the migration, placing a strong emphasis on domain-driven design to create a loosely coupled and scalable system.- Achieved a more maintainable architecture by decoupling various components post-migration, making it easier to troubleshoot and update in the future.2. Search improvements- Improved site SEO resulting in a 10% increase in organic website visits from search engines.

Lviv, Ukraine

- Responsible for Notification, SMTP, Statistics service design and implementation- Implement data-retention flow segment to ensure compliance with GDPR policies- Improve CI/CD pipeline making them run a few times as fast using caching, pre-storing NuGet packages on workers, optimizing tests

Lviv, Ukraine