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Андрей Гетманенко
@andrew_hetman
Principal Frontend Engineer, 10+ years in React & TypeScript. I build high-quality UIs — moved Core Web Vitals into Google's 'good' zone. Remote EU.
PolandWhat I'm looking for
I'm a frontend engineer with 10+ years of experience, focused on React and TypeScript. What I care about most is building products that are fast, reliable, and genuinely good to use.
Most recently, as a Principal Software Engineer at Vista (a global design and print platform), I owned the product gallery — its performance, architecture, and user experience. I moved our Core Web Vitals (LCP and CLS) into Google's "good" range, and built an observability system that catches performance regressions early, before they reach users.
Earlier in my career I also led engineering teams: I took over a large product originally built by 60+ engineers, and after a restructuring I led three teams, stabilized the system, and kept delivery on track. That experience taught me how large systems and organizations really work — but it also made clear that my energy comes from hands-on engineering.
That's why I'm now focused on a senior/principal individual-contributor role where I can go deep technically — solving hard performance and architecture problems and shipping high-quality frontend. I work fully remote and I'm looking for a long-term collaboration with a strong engineering team.
Experience
Work history, roles, and key accomplishments
- Led a performance overhaul of the product gallery, moving mobile CLS and LCP into Google's "Good" zone and INP out of the "Poor"
- Fixed a memory leak in a shared color-localization utility used across the site (owned by another team) that was crashing mobile browsers.
- Built Core Web Vitals observability in New Relic
- Standardized the team's performance practices
Senior Engineering Manager
VistaCreate
May 2023 - May 2024 (1 year)
- Initiated and delivered a dormant-user storage-cleanup program ($84K/year savings)
- Cut full-system outages from ~5% to under 1%.
- Owned the technical delivery of a Microsoft deal, to close at $1.4M.
- Stepped in after a reorganization - restructured the remainder into 3 teams with clear ownership and hit the platform's annual financial targets together with product and marketing.
Team Lead
VistaCreate
Jul 2022 - May 2023 (10 months)
- Integrated Optimizely into VistaCreate and launched 10+ A/B experiments in six months, feeding UX improvements and data-driven roadmap decisions.
- Led a frontend team through a period of rapid change; mentored several engineers into promotion.
Senior Frontend Developer (React)
VistaCreate
Feb 2022 - Jun 2022 (4 months)
Built and maintained a browser-based graphic editor in React — UI, server integration, performance optimization, and stack
modernization
Senior Frontend Developer (React)
Upland
Feb 2020 - Dec 2021 (1 year 10 months)
Develop mobile game using ReactJS+Redux, TypeScript, PixiJS, MapBoxGL
LL
Frontend Developer
Lexico Telecom LTD
Jan 2019 - Jan 2020 (1 year)
Developed and supported a web application built with React and Redux.
FL
Technical Project Manager
Fleetko
Jan 2017 - Jan 2019 (2 years)
Founded and led the development department for a US-trucks eCommerce project, managing hiring, mentoring, planning, delivery, and client communication. Coded when needed for a Laravel/MySQL and Vue 2 stack.
PI
Full-Stack / Frontend Developer
Postindustria, IQRIA
Jan 2015 - Jan 2017 (2 years)
Built full-stack and frontend features including PHP/Symfony eCommerce, RESTful APIs for mobile apps with Salesforce integration, and frontend development with Backbone.js and AngularJS.
Education
Degrees, certifications, and relevant coursework
PU
Petro Mohyla Black Sea National University
Bachelor of Science, Computer Science
2012 - 2016
Grade: 96/100 (US Equivalent: 4.0/4.0)
Activities and societies: Honours degree
Tech stack
Software and tools used professionally
Availability
Looking for a job
Location
Poland
UkraineSalary expectations
7k-9k USD
Social media
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