# Oleksandr Kochkodan > Staff Engineer, Tech Lead at Sift Location: New York City Metropolitan Area, United States Profile: https://flows.cv/oleksandrkochkodan I am a Staff Software Engineer and Technical Lead with over 14 years of experience who bridges the gap between complex distributed systems and tangible product value. I excel at navigating ambiguity, whether it’s designing new projects from scratch, validating ideas through rapid Proofs of Concept, or evaluating emerging technologies to solve specific business problems. My passion isn't just in writing code, but in partnering with Product Managers to translate ambitious business requirements into scalable, reliable applications. I believe that engineering excellence is the foundation of product velocity. I translate clean architecture and SOLID principles into practical guidelines that help the team decouple business logic and simplify testing. By mentoring the team on these patterns, I help reduce maintenance overhead significantly. This shift has allowed us to lower the cost of changes and, most importantly, ship new features faster and with greater confidence. ## Work Experience ### Staff Engineer, Tech Lead @ Sift Jan 2024 – Present | United States ### Senior Engineer, Tech Lead @ Sift Jan 2023 – Jan 2024 | United States ### Senior Engineer @ Sift Jan 2021 – Jan 2023 ### Senior Java Software Engineer @ Lohika Jan 2020 – Jan 2021 | Kyiv, Kyiv City, Ukraine Developed features for a data verification software platform. * Implemented critical business logic for user data validation and processing. * Significantly boosted application performance by optimizing database queries and interactions. * Enhanced system reliability by identifying and resolving critical data inconsistency bugs and memory leaks. ### Senior Java Software Engineer @ FDI Ukraine Jan 2018 – Jan 2020 | Kyiv, Kyiv City, Ukraine Led a team of 5 backend developers in the design, development, and maintenance of critical software solutions. * Spearheaded the development of KyivID (id.kyivcity.gov.ua), a centralized OAuth 2.0 authorization server providing single sign-on (SSO) for municipal services used by Kyiv citizens. * Engineered a dynamic data integration platform to unify and normalize records from diverse Ukrainian national registries into a single, configurable format. * Built a multi-tenant SaaS CMS platform with features like comments, voting, and likes to accelerate the deployment of internal company projects. * Executed complex data migrations between major application versions with significant schema changes while ensuring data integrity. * Optimized application performance through systematic tuning and bottleneck analysis. * Contributed to the development of the Municipal Registry and the next-generation Child Registry, while also providing production support for the existing version. ### Java/GWT team lead, senior developer @ Luxoft Jan 2013 – Jan 2018 ### Java/GWT developer @ Luxoft Jan 2013 – Jan 2013 ### Java/GWT developer @ D8 Corporation Jan 2011 – Jan 2013 ## Education ### Master's degree in Computer Science National University of "Kyiv-Mohyla Academy" ## Contact & Social - LinkedIn: https://linkedin.com/in/oleksandr-kochkodan --- Source: https://flows.cv/oleksandrkochkodan JSON Resume: https://flows.cv/oleksandrkochkodan/resume.json Last updated: 2026-03-31