Dan

Daniil Korzh | Senior Frontend Engineer
Lviv, Ukraine | [open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section)

SUMMARY

Over 8 years of commercial experience building enterprise and start-up web
platforms. Expert in TypeScript, React, Vue, Next.js, Nuxt, Node.js and AI Agents.
I'm focusing on AI integration, scalable architecture, and user experience.

PROFESSIONAL EXPERIENCE

Lemberg Solutions | 2021 - 2026 | Lviv, Ukraine
1. Dealership platform, Austria, Lead / Senior Frontend Engineer
Multi-tenant communication platform connecting Volkswagen Group
manufacturers with dealerships and service organizations worldwide.
Cursor, TypeScript, React, Next.js, Vue, Nuxt, Node.js, MongoDB, TanStack Query, Vue
Router, Tailwind CSS, Zustand, Docker, vite, Jest, Playwright

● Supporting company’s Web components lib, for organization consumers
● Developed SVG Chart library, standardizing leverage of Gantt charts between
organizations
● Owned migration from Vue 2 to Vue 3
● Implemented Playwright visual tests ( VRT ) which increased bug detection by 30%
● Contributions to searching and filtering functionality via OpenSearch
● Implemented RBAC + ABAC and maker-checker flow via UI + BFF layer for
compliance heavy system
● Designed API’s with OpenAPI

2. Marketplace, Netherlands, Tech Lead
Software review and comparison platform.
TypeScript, React, Next.js, Storyblok, Jest, React Testing Library, Vercel

● Built AI agents/skills/ADR’s and MCP/CLI integrations to give AI access to
project-specific tools, documentation, codebases, automating Playwright testing and
git workflow
● Mentored engineers to adopt and integrate AI tooling into their daily workflows
rather than using it only for code generation
● Hit a project launch with limited budget by translating business requirements into
technical solutions, designing system architecture, and establishing development
workflows

3. Hotel Management system, Germany, Senior Full-stack Engineer
SaaS solution for hotels
Claude Code, TypeScript, React, TanStack Query, Jest

● Integrated Agentic GitHub MCP workflow along with skills/rules for AI guidance,
automating PR creation, review, approve, and comments.

● Integrated PayByLink payment, achieving +20% transaction volume
● Developed a reservation embedded widget for smaller hotels support, driving
additional revenue
● Profiling React codebase, improving app security & optimizing rendering

4. Talent Acquisition platform, USA, Senior Frontend Engineer
Hiring management platform
TypeScript, React, Redux Toolkit, Ant Desing, RTK Query, React Hook Form,
Storybook, MUI, Jest, GraphQL, Go, Fiber, Docker

● Led a talent pipeline feature with an AI-powered virtual assistant
● Integrated testing from scratch, cutting down non-catched errors by 20%

Caspio | 2020 - 2021 | Dnipro, Ukraine
Low-code platform, USA, Frontend Engineer
The AI Platform for Custom Business Applications
TypeScript, React, Redux, Context API, NX, Storybook, Jest, C#, .NET, SQL Server

● Responsible for Billing application, ensuring correct work with numbers in payments,
components, testing, and data-flow within platform
● Built custom i18n utility for NX monorepo, improving reusability & consistency across
system
● Contributed to real-time WebSocket drag & drop functionality, achieving +10% user
activity

Freelance | 2017 - 2020 | Dnipro, Ukraine
Financial application, Ukraine, Frontend Engineer
Web & Desktop finance tracker application
JavaScript, TypeScript, React, Electron

● Developed new features for the Electron app, which contributed to +20% increase in
daily active feature users.

SIDE PROJECT

Rule 20-20-20 | 2026
iOS & iPad eye care mobile app | Link to AppStore
Claude Code, TypeScript, React Native, Expo

● Designed and implemented architecture for mobile app, reached a 100+ downloads
● Integrated Google AdMob, for in-app monetization

EDUCATION

Master’s degree in Internet marketing at Collegium Humanum
Warsaw, Poland, 2022-2024

Bachelor’s degree in Computer Science at the University of Customs and Finance
Dnipro, Ukraine, 2018-2022

SKILLS

Claude Code, Cursor, HTML5, CSS3, BEM, Bootstrap, JavaScript, TypeScript, Vue, Composition
API, Options API, Nuxt, React, Redux, React Native, Next.js, webpack, Axios, Fetch, Core Web
Vitals, Pinia, Golang, Ruby/RoR, Python, GraphQL, REST API, Serverless, MongoDB, Vercel,
Firebase, MCP, redis, pnpm, yarn, npm, OOP, SOLID, Git, AWS, GCP, Vite, XSS, CSP, CSRF,
OWASP and Security, Axios, Stylelint