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Volodymyr Ustilkin | Frontend Developer

Cherkasy, Ukraine

LinkedIn: [open contact info](look above in the "contact info" section)
Email: [open contact info](look above in the "contact info" section)

Summary:
Frontend Engineer with 5+ years of experience (including 4.5 years of commercial)
in JavaScript, Vue, and React. Focusing on opportunities within the React ecosystem.
Also have backend experience for efficient frontend-backend integration.

Skills:
• Languages: JavaScript (ES6+), TypeScript, HTML5, SCSS/CSS, SQL
• Frontend: React, Next.js, Redux, Zustand, TanStack Query (React Query),
Vue.js, Vuex, i18n, Tailwind CSS
• Backend: Node.js, Express.js
• APIs: REST API, Axios, WebSockets, JWT, OAuth
• Testing: Jest, Cypress
• Tools: Figma, Docker, Git, Webpack, Vite, Jira, Sentry
• Databases: PostgreSQL, SQLite
• Methodologies: Agile (Scrum, Kanban)
• Soft Skills: Problem Solving, Ownership, Analytical Thinking, Communication,
Teamwork, Mentoring, Time Management

Experience:
Frontend Developer – Master Of Code Global
Jul 2021 – Oct 2025 (4.5 years)
• Developed components in Vue.js and React; worked with JavaScript (ES6+),
HTML5, SCSS/CSS
• Implemented business logic and UI for a Shopify-integrated application (One Click
Upsell – Zipify OCU) and internal enterprise tools
• Reduced average first-render time through component refactoring and lazy-loading
• Improving Time-to-Interactive and lowering bounce rates
• Integrated frontend with REST APIs, including authentication and handling
asynchronous requests and errors
• Optimized interface and UX performance by reducing render time and interaction
lags when navigating lists and tables
• Maintained and refactored the existing codebase, participated in code reviews
 • Wrote unit tests using Jest to improve code coverage
• Mentored JavaScript courses at Masters Academy (2022–2023)

Java Developer – SPD Technology
Apr 2020 – Oct 2020 (6 months)
• Developed and maintained server-side modules and microservices for the
PitchBook platform (a leading global financial data platform)
• Resolved bugs and issues. Participated in code reviews to ensure code quality

System Administrator – Civil Service
Oct 2008 – Nov 2019 (11 years)
• Automated complex infrastructure tasks by developing scripts (Python, VBA),
including tools with 1000+ lines of logic for data processing
• Administered servers and networks; configured backups and monitoring
• Collaborated with development teams to ensure service stability
• Diagnosed and resolved complex infrastructure issues to ensure high availability

Laboratory Assistant – KNUTD
Sep 2005 – May 2006 (9 months)
• Prepared documentation and provided lab support

Education:
• Master’s Degree in Systems Programming (with Honors) – Kyiv National University
of Technologies and Design | 2016 – 2017
• Specialist Degree in Systems Programming (with Honors) – Kyiv National University
of Technologies and Design | 2003 – 2007

Additional education and certificates:
• Career Essentials in Generative AI by Microsoft and LinkedIn / 2023 / Cert: LinkedIn
• Frontend Advanced (Angular & Architecture) – Master Of Code Global / 2021
◦ Role: Team Lead & Frontend Developer
◦ Led a cross-functional team (Angular & Ruby on Rails) and coordinated with
backend developers; 100% of the team was successfully hired
• JavaScript Advanced (React, Node.js) – Geekhub / 2021 / Cert: gh21js003
• Java For Web – Geekhub / 2020 / Cert: gh20jw012

Languages:
• Ukrainian: native speaker
• English: B1

Recommendations:
• Reference from previous employer: [open contact info](look above in the "contact info" section)