Mykola Masiuk
@mykolamasiuk
I build scalable fintech and SaaS frontend platforms with React, Next.js, and TypeScript.
UkraineWhat I'm looking for
I've spent more than five years building connected US fintech and SaaS products at Globaldev Group, including lending lifecycle systems, payment operations, onboarding applications, reporting platforms, and AI-powered interview tools.
I improve performance and maintainability in data-heavy operational products. I raised a Lighthouse score from 68 to 90 and migrated more than 100 legacy API integrations to a typed React Query architecture.
I build reusable UI foundations, DataGrid infrastructure, validation and filtering systems, realtime workflows, and transactional interfaces using React, Next.js, TypeScript, Redux Toolkit, TanStack Query, WebSockets, and SignalR.
I work closely with backend engineers, QA, designers, and product managers in distributed Agile teams, delivering end-to-end functionality across web and React Native applications.
Experience
Work history, roles, and key accomplishments
Senior Frontend Engineer
Globaldev Group
Jan 2022 - Present (4 years 7 months)
Contributed to a large US fintech ecosystem of 10+ interconnected frontend applications, improving performance and modernizing data flows. Delivered realtime operational systems, AI-powered interview platforms, and a React Native borrower app.
Frontend Engineer
Globaldev Group
Sep 2020 - Jan 2022 (1 year 4 months)
Developed reusable frontend modules and operational UI systems for internal enterprise products. Integrated REST APIs, authentication flows, and responsive interfaces, collaborating within Agile teams.
Education
Degrees, certifications, and relevant coursework
Woolf University
Master of Science, Computer Science
2025 -
Pursuing a Master of Science in Computer Science with a focus on Software Engineering.
National University of Life and Environmental Sciences of Ukraine
Master of Power Engineering, Power Engineering
Earned a Master of Power Engineering with a focus on Technical Systems.
Availability
Location
UkraineAuthorized to work in
Job categories
Skills
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