Володимир

Volodymyr Malynoshevskyi
Front-End Developer | React.js / TypeScript / Next.js
[open contact info](look above in the "contact info" section) · [open contact info](look above in the "contact info" section) · Telegram · LinkedIn · Remote / Full-time / Contract

SUMMARY

Front-End Developer with 10+ years of experience in web development and 5+ years of commercial React production
experience. Specialized in React, TypeScript, and Next.js — with a proven track record of building analytics platforms,
complex admin interfaces, and marketing tools in AdTech and e-commerce domains. Delivered measurable results:
reduced campaign setup and launch time from ~40 to ~12 minutes, 20% increase in checkout conversion, 40% faster UI
rendering. Experienced in legacy system migrations, SSR architecture, performance optimization, mentoring, and AI-
assisted development workflows. English — Upper-Intermediate (B2).

SKILLS

Core: JavaScript (ES6+), TypeScript, HTML5, CSS3/SCSS, BEM
Frameworks & Libraries: React.js (incl. React 19), Next.js, React Router, Vue.js 2
State Management: Redux, Redux Toolkit, Redux Saga, Zustand, Context API
Data & Queries: TanStack Query (React Query), React Hook Form, GraphQL, REST API, Axios
UI / UX: Material UI (MUI), Bootstrap, Styled Components, Responsive Design, Figma
Testing: Jest, Vitest, React Testing Library, Cypress, Unit & Integration Testing, E2E
Tooling & Build: Vite, Webpack, ESLint, Prettier, Git, GitLab CI/CD, Docker, NPM
Backend & APIs: Node.js, Express, MySQL, MongoDB, PHP — integration & REST API development
Monitoring: Sentry, Kibana, Grafana
Practices: Agile, Scrum, Code Review, Mentoring, Technical Planning, Cross-team Collaboration
AI Tools: Cursor AI, GitHub Copilot, ChatGPT, Claude

WORK EXPERIENCE

Front-End Developer / React Engineer · Together Networks Limited · Jul 2021 – May 2026
Stack: React.js, React 19, TypeScript, Next.js, React Query, Redux, Redux Saga, MUI, Recharts, Node.js, MySQL, Vite, Jest, React
Testing Library, Docker, GitLab CI/CD, Cursor AI
• Developed internal analytics platforms for marketing teams: traffic attribution systems, ad funnel management
tools, budget distribution dashboards, and client administration panels.
• Built an interactive data visualization module using Recharts — conversion graphs, acquisition funnels, traffic
heatmaps, and cross-channel comparison reports — reducing campaign analysis time for the marketing team by
~35%.
• Designed and implemented a real-time data filtering and aggregation system supporting tables with 100k+
records, multi-level filtering, and CSV/Excel export — replacing manual data processing in external spreadsheets.
• Took full architectural ownership of new modules within a large-scale migration from Marko.js / PHP / MongoDB
to React 19 / TypeScript / React Query / Node.js / MySQL — incrementally replacing legacy functionality with
maintainable React modules.
• Introduced SSR via Next.js to improve platform scalability and Core Web Vitals scores.
• Optimized performance of complex screens through memoization, list virtualization, React Query caching, and
render profiling — reduced UI rendering time by ~40%.
• Covered new and migrated functionality with unit and integration tests using Jest and React Testing Library —
significantly reduced regression rate during active refactoring.
• Implemented OAuth 2.0 authorization flow based on JWT — configured access/refresh token issuance, automatic
session renewal on the client side, and route protection at the API level.
• Mentored junior developers, led code reviews, participated in technical discussions and sprint planning.

• Built internal AI-powered automation tools for documentation generation, legacy code analysis, and test writing
— reduced feature delivery time by ~25%.

HTML / CSS / JavaScript Developer · NOOSPHERE · Mar 2017 – Jul 2021
Stack: HTML5, CSS3, SCSS/SASS, JavaScript (ES6+), jQuery, Responsive Design, Cross-browser Development
• Developed pixel-perfect responsive and cross-browser interfaces for corporate web products, landing pages, and
marketing modules.
• Implemented complex JavaScript functionality: interactive forms with validation, dynamic content loading,
animated components, client-side routing, and third-party API integrations.
• Developed internal JavaScript libraries and reusable UI components to standardize development across projects —
reduced new page implementation time by ~30%.
• Built complex HTML email templates with support for all major email clients (Gmail, Outlook, Apple Mail) for
company marketing campaigns.
• Collaborated with designers, marketing team, and QA throughout the full cycle of product page launches and
advertising campaigns.

EDUCATION

Specialist Degree in Software for Automated Systems · Zaporizhzhia National Technical University · 2006 – 2011

LANGUAGES

English — Upper-Intermediate (B2, actively developing)
Ukrainian — Native