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Full-Stack Engineer with 4 years of commercial experience in React and TypeScript, building and maintaining production-grade web applications. Over 2 years of hands-on experience with Next.js, delivering 5+ production projects ranging from MVPs to scalable admin platforms. 2 years of backend development experience with Node.js, designing REST APIs, implementing authentication and RBAC, integrating third-party services (Stripe, Google APIs), and optimizing server-side performance with caching and query tuning.…Full-Stack Engineer with 4 years of commercial experience in React and TypeScript, building and maintaining production-grade web applications. Over 2 years of hands-on experience with Next.js, delivering 5+ production projects ranging from MVPs to scalable admin platforms. 2 years of backend development experience with Node.js, designing REST APIs, implementing authentication and RBAC, integrating third-party services (Stripe, Google APIs), and optimizing server-side performance with caching and query tuning.

Denis Vishchuk

Front-End Developer, Full Stack Developer, Back-End Developer, +1

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Full-Stack Engineer with 4 years of commercial experience in React and TypeScript, building and maintaining production-grade web applications. Over 2 years of hands-on experience with Next.js, delivering 5+ production projects ranging from MVPs to scalable admin platforms. 2 years of backend development experience with Node.js, designing REST APIs, implementing authentication and RBAC, integrating third-party services (Stripe, Google APIs), and optimizing server-side performance with caching and query tuning.…Full-Stack Engineer with 4 years of commercial experience in React and TypeScript, building and maintaining production-grade web applications. Over 2 years of hands-on experience with Next.js, delivering 5+ production projects ranging from MVPs to scalable admin platforms. 2 years of backend development experience with Node.js, designing REST APIs, implementing authentication and RBAC, integrating third-party services (Stripe, Google APIs), and optimizing server-side performance with caching and query tuning.

Available to hire

Full-Stack Engineer with 4 years of commercial experience in React and TypeScript, building and maintaining
production-grade web applications. Over 2 years of hands-on experience with Next.js, delivering 5+ production
projects ranging from MVPs to scalable admin platforms.
2 years of backend development experience with Node.js, designing REST APIs, implementing authentication
and RBAC, integrating third-party services (Stripe, Google APIs), and optimizing server-side performance with
caching and query tuning.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

German

Fluent

English

Advanced

Ukrainian

Fluent

Russian

Fluent

Polish

Beginner

Work Experience

Full-Stack Developer at Wenite Information Technology

February 20, 2025 - Present

Built complex PowerShell scripts for Microsoft 365 automation, reducing manual admin work by 80%.

Full-Stack Developer at KW Technology GmbH

February 20, 2025 - September 23, 2025

Navigation Tools for Logistics & Parking; developed seamless integration between Google Sheets API and mobile application, automating 90% of manual data syncing; built a unified admin panel with dynamic reporting and Azure SQL dashboards.

Full-Stack Developer at Krochas GmbH

August 20, 2024 - September 23, 2025

B2B E-commerce Platform; designed and implemented backend architecture from scratch using Node.js and MongoDB; created an advanced admin panel with reporting to support future development.

Frontend Developer at DevelopsToday

December 20, 2023 - September 23, 2025

Frontend role for Fintech Mobile App + Marketing Website; built multiple key screens in the React Native application and contributed to front-end architecture.

Frontend Developer at Jellyfish.tech

July 20, 2023 - September 23, 2025

Several E-commerce projects; refactored and optimized component logic, reducing render time through memoization and lazy loading.

Frontend Developer at Termit Ltd

January 20, 2023 - September 23, 2025

Construction Materials E-commerce Platform; implemented scalable state management with MobX, fixed UI bugs, and collaborated with designers to ensure cross-browser compatibility and design fidelity.

Frontend Developer at Termit Ltd.

April 1, 2022 - January 1, 2023

Frontend Developer on an E-commerce platform; built responsive UI components, maintained performance and accessibility; Full-time.

Full-Stack Developer at Krochas GmbH

August 1, 2023 - December 1, 2023

Full-Stack Developer on MVP launch for B2B e-commerce platform; 9 months contract; Remote/Hybrid.

Full-Stack Developer at Onsite KW Technology GmbH

September 1, 2024 - February 1, 2025

Full-Stack Developer for Tools for Logistics MVP; project-based contract; onsite.

Full-Stack Developer at Hybrid Website IT

February 1, 2025 - Present

Full-Stack development on Microsoft 365 Admin Platform; automation pipelines; centralized Next.js admin; caching; CI/CD.