About Andrii
I am a Senior developer with 9+ years of production ReactJs experience and 11+ years of Web Development in total.
Right now I am a contractor / freelancer in Berlin, Germany. I am helping my clients to build robust solutions with focus on user experience. For some clients I have also builded sharable UI components (UI Library) that can be used across different projects using NPM registry.
I have been working with Redux for 5 years, also I am working right now with Apollo / GraphQL. I have been using TS for more than 6 years. For testing I am using Cypress.io for E2E and Jest for unit, visual regression, snapshot testing.
German
Fluent
English
Fluent
Ukrainian
Native or bilingual
Can work on-site
Berlin (up to 50km)
Experience
- Mehrwerk GmbHFrontend LeadBANKING AND INSURANCESeptember 2021 - December 2025 (4 years and 2 months)Bielefeld, GermanyLed a team of 5 developers and architected a scalable React application framework that reduced client onboardingfrom 4 months to 30 minutes. Built a UI Editor enabling real-time content updates across web and native platforms,serving 1M+ monthly active users. Designed and owned a full load-testing suite (smoke, stress, soak, spike) for SSR andGraphQL services using k6 and Grafana Cloud.
- Adevinta Product & techSenior ReactJs DeveloperAUTOMOBILEFebruary 2022 - December 2022 (11 months)Berlin, GermanyPart of the dealer retail team on Kijiji Autos — Canada's largest online auto platform. Delivered React features acrossthe dealer-facing product surface.
- AccentureSenior ReactJs DeveloperDIGITAL AND ITNovember 2020 - January 2022 (1 year and 2 months)Hamburg, GermanyImplemented a White Label Dealer Search app for VW and integrated it into Audi using a micro-frontend approach.Supported Audi.de across 90+ markets.Implemented the new smart IAA landing page with immersive, animated React components for the brand's futureproduct reveal.
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Education
- Master in Computer ScienceLviv, Ukraine2015Lviv Polytechnic National University Diploma thesis: Context-aware web service for booking personal services. During education I wrote a compiler as coursework using C and Assembler, created Virtual Desktops for Windows 7, using C and WinAPI.
Certifications
- Certified Secure ProgrammereBay Deutschland2022