Oleksii Bondar
nnI've shipped features for high-scale production systems (Cisco Webex ~8B calls/month).
About
I’m a Senior Software Engineer with 7+ years building full-stack products end to end, specializing in backend APIs, real-time systems, and user-facing apps using TypeScript, React/Next.js, Node/Nest, Go, and PostgreSQL on AWS.\n\nI’ve shipped features for high-scale production systems (Cisco Webex ~8B calls/month). I focus on performance, reliability, and revenue impact, delivering integrations and improvements that cut page load times, reduce incident-resolution time, and uplift revenue.
- 6 years' experience
- Joined June 2026
Languages
- EnglishAdvanced
- PolishAdvanced
- UkrainianFluent
- RussianFluent
Industry experience
- Software & Internet
- Media & Entertainment
- Professional Services
Work experience
Debugged and resolved reliability issues across frontend, backend, and real-time service boundaries under live production traffic; repaired simulcast negotiation/fallback, improving video quality under fluctuating bandwidth. Designed VDI-aware Step Away / Auto-Away React flows and added telemetry, observability, and automated test coverage, contributing to a ~40% reduction in incident-resolution time.
Built full-stack enterprise apps and a centralized authentication platform reused across multiple products, improving secure access and cross-system integration. Cut page load time ~20% through caching and efficient data access; delivered a banking integration contributing a ~15% revenue uplift with multi-language support. Reduced new-product integration time ~40% via REST API design, reusable service boundaries, and secure legacy-system modernization.
Delivered responsive websites and custom web apps with React, Node.js, and PostgreSQL; gathered requirements directly from international clients and shipped across the full stack.
Education
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