Halyna Bereznytska

Built and scaled a unified design system, increasing reusability and reducing development time by 25%. Designed responsive booking and CRM workflows that cut task completion time by 20% and raised conversion by 15%. Led 50+ usability tests to reach WCAG AAA, improving task success by 30%. Delivered touch-optimized UI components, reducing inconsistencies by 60%, and ran UX audits that lowered support tickets by 20%. Facilitated UX workshops to improve cross-team alignment and backlog clarity.

UK Government Education Platform Built mobile UX architecture and CMS UI → enabled 10,000+ monthly student users; publishing time ↓ 35%. Integrated analytics and UX-MIS workflows → increased feature adoption by 25%. Conducted 30+ user tests → reduced errors; increased user satisfaction by 15%.

projects tasks: creating a UX architecture for a mobile application from scratch - development of the CMS system interface from scratch -UX MIS - product data integration - working with data analytics -testing design solutions on users

Investment & Trading Platforms Investment Platform Simplified onboarding and registration flows → first-investment rate ↑ 20%, onboarding time ↓. Introduced ESG tags + impact-return visuals → user engagement ↑ 40%, improved investor trust. Trading App Designed full end-to-end UX (research → prototypes → testing) with 50+ active traders. Translated complex trading data into clear dashboards → time-to-decision ↓ 25%, buy/sell errors ↓.

Optimized alert logic for a remote patient monitoring admin panel, reducing clinician alert overload by 30%, and designed modular tablet and desktop dashboards to speed up time-to-insight. Led design sprints with clinicians, adding three validated workflows to the roadmap. Conducted research with 40+ seniors to uncover digital anxiety triggers, created personas and journeys that cut onboarding drop-offs by 15%, and designed accessible flows that increased usability scores by 20%

Enterprise Web & Mobile Platform Designed enterprise UI + automation flows → data-entry speed ↑ 20%, user errors ↓ 30%. Conducted 100+ usability tests → feature adoption ↑, task speed ↑ 15%. Delivered UX for enterprise web and mobile modules used across multiple industries