Roman Bilak
@romanbilak
Lead Backend Engineer at YellowStone, contributing to a high-load platform after leading Docker migration and CI/CD implementation.
SpainWhat I'm looking for
At YellowStone (part of EVOPlay), I contribute to the core of a high-load, multi-site platform, developing backend features and supporting production reliability. I also work on performance improvements and join architecture and database design discussions.
From April 2022 to January 2026, I led a backend team of 3 and coordinated 5 cross-functional specialists on ggbet.co.uk. I handled hiring, onboarding, technical planning, releases, and production support, and led Docker migration and CI/CD implementation.
Earlier, at TourHunter.com, I supported a tourism SaaS platform through backend feature development, REST APIs, performance optimization, and early-stage unit testing. Across my work, I reduced database storage from 190 GB to 110 GB and infrastructure costs by approximately $1,000–1,500 per month.
Experience
Work history, roles, and key accomplishments
Senior Backend Developer
YellowStone (part of EVOPlay)
Feb 2026 - Present (8 months)
Continuing development of a high-load modular platform, maintaining ownership of backend features, production support, performance improvements, and architecture and database design discussions.
Team Lead Backend Developer
YellowStone (part of EVOPlay)
Apr 2022 - Jan 2026 (3 years 9 months)
Led a backend team of 3 and coordinated 5 cross-functional specialists, owning hiring, interviews, onboarding, 1-to-1s, technical planning, release management, and production support for a high-load platform.
Backend Developer
TourHunter.com
Jan 2016 - Jan 2020 (4 years)
Supported a SaaS platform for the tourism industry through backend feature delivery, REST API development, performance optimization, and early-stage testing.
Education
Degrees, certifications, and relevant coursework
European University of Financing, Information Systems, Management and Business
Master's Degree, Accounting
2004 - 2006
Completed a Master's degree in Accounting, focusing on financial accounting and management principles.
European University of Financing, Information Systems, Management and Business
Master's Degree, Computer Science
1999 - 2004
Pursued a Master's degree in Computer Science, covering advanced topics in computing and information systems.
Availability
Location
SpainAuthorized to work in
Salary expectations
Social media
Job categories
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