Руслан

RUSLAN CHMYR
Senior Frontend Engineer | React · TypeScript · AI-Assisted Development
[open contact info](look above in the "contact info" section) | LinkedIn | [open contact info](look above in the "contact info" section) | 📍Valencia, Spain
PROFESSIONAL SUMMARY

Senior Frontend Engineer with 7+ years of commercial experience building scalable,
high-performance web applications using React, Next.js, TypeScript, and JavaScript. Specialized in
complex Admin Panels, Back Office systems, and data-intensive interfaces, with strong expertise in
frontend architecture, system design, performance optimization, CI/CD, and technical ownership.

Additional hands-on commercial experience building AI-powered automation workflows using n8n,
LLM integrations, and external APIs, including code review automation, data enrichment, and
recruitment workflows. Experienced with AI-assisted development tools such as Cursor, GitHub
Copilot, and Claude Code.

TECHNICAL SKILLS

Core: React, Next.js, TypeScript, JavaScript (ES6+), HTML5, CSS3
State & Data: Redux Toolkit, RTK Query, REST APIs, WebSockets, GraphQL
Architecture & Tooling: System Design, Micro Frontends, Module Federation, Monorepos, Nx, Vite,
Webpack, Docker, Git, CI/CD
Performance: Rendering Optimization, Virtualization, Code Splitting, Performance Profiling
AI-Assisted Development: Cursor, GitHub Copilot, Claude Code, MCP
AI & Automation: n8n, LLM API Integrations, Workflow Automation, Data Extraction & Enrichment
Testing: Jest, React Testing Library
UI & Styling: Material UI, Ant Design, SASS
Additional: React Native, Svelte, Vue

PROFESSIONAL EXPERIENCE

Brain Rocket | Senior Frontend Engineer Mar 2026 – Oct 2026
Valencia, Spain
● Designed and implemented a shared JavaScript core to consolidate duplicated business logic
across web and mobile applications, enabling code reuse and consistent behavior.
● Owned the system design for the shared core, evaluating integration approaches, architectural
trade-offs, potential bottlenecks, and documenting the proposed solution.
● Developed 10+ standalone UI widgets powered by the shared JavaScript core, implementing
interactive interfaces, state management, and API integrations.
● Developed and maintained Back Office features and administrative interfaces for internal business
applications.
● Introduced unit tests for shared business logic and contributed to monorepo infrastructure and
CI/CD workflows, including builds, tests, linting, type checking, and deployments.

PROFESSIONAL EXPERIENCE (CONTINUED)

Mindtech Studio | Frontend Engineer (AI Automation Projects) Feb 2023 – Mar 2026
Cherkasy, Ukraine
● Owned end-to-end frontend development across multiple web and cross-platform projects using
React, Next.js, React Native, Svelte, and TypeScript.
● Improved performance of data-intensive React applications through virtualization, rendering
optimization, and reduction of unnecessary re-renders.
● Built AI-powered automation workflows using n8n and LLM integrations, including automated
GitHub code review and conference attendee research.
● Developed recruitment automation workflows integrating email processing, Monday.com,
candidate data extraction, applicant screening support, and AI-assisted response drafting.
● Designed and developed an Azure cloud cost estimation solution and a cross-platform business
meeting scheduling application.

Titanium Technologies | Frontend Engineer Nov 2020 – Feb 2023
Cherkasy, Ukraine
● Developed React-based Web3 applications, including a trading bot management platform with
cryptocurrency wallet integrations and an NFT platform featuring an Admin Panel and gallery
functionality.
● Designed and implemented a Micro Frontend architecture using Webpack Module Federation,
establishing a modular application structure and reusable frontend packages.
● Built reusable React components and implemented state management, business logic, and API
integrations across applications.

Axels | Frontend Developer Aug 2019 – Nov 2020
Kyiv, Ukraine
● Developed and maintained React applications, including migrating a legacy JavaScript application
to React and modernizing its frontend architecture.
● Built an internal project management platform and reusable React-based statistical widgets
integrated into an existing Angular application.

EDUCATION

Master’s Degree - Cherkasy State Technological University | Automation and Computer-Integrated
Technologies | 2019 – 2021
Bachelor’s Degree - Cherkasy State Technological University | Information Security Management |
2015 – 2019

LANGUAGES

Ukrainian (Native) | English (B2)