May 2021 – Feb 2024 · 2 yrs 9 mos · Seattle, Washington, United States · Hybrid

• Web and Javascript Developer Experience in Office365 and E+D
• Delivered infrastructure tooling, services, and configurations in mono and multi repos; supported 6 teams across North America, EU, Africa, and Asia, bootstrapping processes and uncovering true requirements between internal and external customers to align engineering and product organizations without direct reporting lines.
• Defined and delivered the vision and technical strategy for improving web engineering systems and standards; created, aligned, and tuned the CI/CD lifecycle for various JavaScript applications (installing, building, shipping packages/bundles to the feed for engineers within E+D).
• Designed and implemented a package manager to provide deterministic package installations; drove engineering system stability, follow-the-sun support, and developer satisfaction for a hugely diverse set of engineers.
• Managed a high-caliber software engineering team, ensuring timely feature delivery, championing project and development excellence, fostering career growth, and building a strong culture of customer passion, collaboration, diversity, and inclusion.
• Tech stack: Azure CI/CD system (ADO pipelines), Azure resource management (functions, storage, compute), monitoring (Grafana, IcM), package management (yarn, npm), source control (git, scalar), AI integrations (Copilot).

Jan 2020 – Jan 2021 · 1 yr · Stockholm, Stockholm County, Sweden

• Financial Engineering - Royalties and Reporting area
• Collaborated between engineering and product teams in EU and U.S. to create blueprints and roadmap.
• Enabled delivery of the Royalty Platform — a complex web app for finance stakeholders to configure contracts and perform changes, including running experiments to assess profitability of contract amendments before implementation.
• Provided technical hands-on management of backend, full stack, data engineers, and designers; collaborated with 2 product managers.
• Led a high-visibility project with tight deadlines, overseen by the CEO.

Jan 2016 – Jan 2020 · 4 yrs · Amsterdam Area, Netherlands

• Developer Experience – Core Infrastructure Department
• Managed engineering and product organization of 35 FTEs (Engineering & Product Managers, Engineers, SREs, Designers) across 7 agile cross-functional teams, with 12 direct and 3 functional reports. Served 2000+ engineers (backend, frontend, data, reliability) in the world’s largest travel company, delivering world-class tools and owning the internal development workflow & ecosystem, including Git, GitLab, Artifactory, CI (GitLab runners, Bazel), deployments (bare metal, k8s), UX of developer tooling, and Java/Perl/Node.js frameworks.
• Defined organizational purpose, vision, and objectives; drove change management for top-down and bottom-up changes; planned and delivered technical and non-technical initiatives; reviewed architectural designs; ensured system health (SLOs, RFOs, continuity, failovers, backups, capacity planning); and managed resources, including pivoting/disbanding teams and requesting allocations for new teams.
• Identified and developed talent through mentoring/coaching; mediated conflicts between managers and engineers; addressed underperformance; and conducted fit interviews for Site Reliability Engineers, Software Engineers, Engineering Managers, and Product Managers.

Jan 2012 – Jan 2016 · 4 yrs · Amsterdam Area, Netherlands

• Working over this period in 4 departments:
• Machine Learning (Visitor Profiling) – Senior Full Stack Developer using NLP to analyse user behaviours, recording customer interactions for model training. Organised initiatives to reduce technical debt and executed multiple PWA projects to improve customer experience.
• Business Bookers (B2B) – Built solutions for direct/indirect reservation channels in a Scrum cross-functional team (BE/FE, Designer, Copywriter, PO). Integrated with a new payment provider for business partners and implemented A/B testing.
• Onboarding – Coordinated mass onboarding of new engineers, providing diverse backlogs across Booking.com business areas, ensuring optimal department placement, and performing first-line expectation checks for new joiners.
• Mobile (m.booking.com) – Created and improved mobile site architecture, mentored developers/designers, conducted interviews, and implemented hundreds of A/B tests to boost UX and conversion through client-side performance improvements.

Jan 2011 – Jan 2012 · 1 yr · Kyiv, Ukraine

• Engineering of AVID Interplay Central, a web-oriented software for TV journalists, focusing on JavaScript/CSS/HTML coding, refactoring, bug fixing, and debugging using ExtJS and jQuery.
• Conducted code reviews, provided JavaScript, HTML, and CSS training, and mentored junior developers, while also writing architectural design documents and optimizing code performance.
• Engaged in task planning and coordination, requirement analysis, and utilized technologies such as SCRUM, JIRA, and AccuRev for project management.

Jan 2009 – Jan 2011 · 2 yrs · Kyiv, Ukraine

• Key engineer in development, rollout, and bug fixes for over 40 web projects, utilizing PHP5, MySQL, MSSQL, ColdFusion, ASP, jQuery, AJAX, and worked with CMSs like Magento, WordPress, and Drupal.
• Architected and supported new and existing projects, implemented template engine Smarty, and managed server configurations, including website transfers, backups, and restorations.
• Integrated and managed APIs for payment systems such as PayPal and Authorize.net, and collaborated with web services like Flickr and Apple Store, ensuring quick bug resolution and thorough testing.

Jan 2008 – Jan 2009 · 1 yr · Kyiv, Ukraine

• Developed together with 2 programmers PHP website http://obzor.ua from scratch. Actively participated in forming requirements and planning shipping. Was a part of a launch and added features after getting a boost of traffic from PPC.

Jan 2005 – Jan 2008 · 3 yrs · Kyiv, Ukraine

• Engineer in the IT Department. Duties: creation of web-sites, installing and tuning of OS, software, changing the hardware configuration of computers.
• Finished projects: websystem of the NAU – http://websystem.nau.edu.ua, which includes information and analysis system for the transforming university paper information from paper into the web environment, the student administration site – http://studrada.nau.edu.ua. Created special CMS for websites.