Hi, I’m Anatolii Sydorenko, a frontend developer with over 10 years of experience delivering scalable and performant web applications using React and Next.js. I excel at turning complex requirements into clean, accessible interfaces and collaborating with cross-functional teams to ship features that drive business results. I’ve built expertise across e-commerce, food delivery, and real-time platforms, and I bring an entrepreneurial mindset from founding and leading a wholesale business. I’m proficient with modern tooling, Agile methodologies, and payment integrations, and I’m passionate about creating delightful user experiences while keeping performance and maintainability at the core.

Anatolii Sydorenko

Hi, I’m Anatolii Sydorenko, a frontend developer with over 10 years of experience delivering scalable and performant web applications using React and Next.js. I excel at turning complex requirements into clean, accessible interfaces and collaborating with cross-functional teams to ship features that drive business results. I’ve built expertise across e-commerce, food delivery, and real-time platforms, and I bring an entrepreneurial mindset from founding and leading a wholesale business. I’m proficient with modern tooling, Agile methodologies, and payment integrations, and I’m passionate about creating delightful user experiences while keeping performance and maintainability at the core.

Available to hire

Hi, I’m Anatolii Sydorenko, a frontend developer with over 10 years of experience delivering scalable and performant web applications using React and Next.js. I excel at turning complex requirements into clean, accessible interfaces and collaborating with cross-functional teams to ship features that drive business results.

I’ve built expertise across e-commerce, food delivery, and real-time platforms, and I bring an entrepreneurial mindset from founding and leading a wholesale business. I’m proficient with modern tooling, Agile methodologies, and payment integrations, and I’m passionate about creating delightful user experiences while keeping performance and maintainability at the core.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
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Language

Russian
Fluent
Ukrainian
Fluent
English
Intermediate
German
Intermediate

Work Experience

Frontend Developer at blitzessen.de
September 1, 2025 - Present
Launched in September 2025 as a restaurant aggregator based on geolocation; enabled custom restaurant domains; built with Next.js 15+ and PostgreSQL; payments via Stripe Connect; deployed on a VPS using Docker and Dokploy.
Frontend Web Developer at Beliani
November 1, 2023 - September 1, 2024
Developed and optimized interfaces for an e-commerce platform; reduced page load time by 30% using code splitting and lazy loading; built reusable UI components and responsive layouts for multiple devices.
Frontend Developer at Beliani
November 1, 2023 - September 1, 2024
Developed and optimized interfaces for an e-commerce platform; Reduced page load time by 30% using code splitting and lazy loading; Built reusable UI components and responsive layouts for multiple devices.
Full Stack Developer at ImmCanadaHelp
January 1, 2020 - Present
Immigration scoring and application platform; Built with PHP, JavaScript, and MySQL (2020); Provided point-based eligibility system and document submission flow.
Frontend Developer at Mimish
January 1, 2018 - Present
Online stationery store (5000+ products); Developed in 2018 using PHP, JavaScript, and MySQL; Included product catalog, filtering, cart, and checkout functionality.
Frontend Developer at Self-Employed
January 1, 2014 - Present
Delivered multiple client projects across e-commerce, food delivery, and service platforms. Specialized in React/Next.js with full-stack integration, real-time features, and payment system integration (Stripe/Stripe Connect). Led frontend architecture and implementation for projects including Blitzessen.de, SushiKo, Wörterbuch AI submission, Daenemark wedding services, Reifenservice landing pages, ImmCanadaHelp scoring platform, and Mimish online store; focused on performance, accessibility, and responsive design.
Frontend Developer at Beliani
November 1, 2020 - September 30, 2021
Developed and optimized ecommerce platform interfaces; reduced page load time by 30% via code splitting and lazy loading; built reusable UI components and responsive layouts; contributed in an Agile team to deliver features and improvements.
Founder & Director at Partner Office (LLC)
January 1, 2008 - December 31, 2016
Founded and managed wholesale B2B company supplying stationery and household chemicals to enterprises in Ukraine. Built online store shop-pen.com (PHP/JavaScript/MySQL) with full product catalog, ordering, and client management; led a team, managed supplier and client relationships, and handled financial reporting.

Education

Frontend Web Developer Course at Tel-Ran.de
October 1, 2022 - August 1, 2023
at Institute of Psychology and Entrepreneurship
January 1, 2002 - January 1, 2007
Frontend Web Developer Course at Tel-Ran.de
October 1, 2022 - August 1, 2023
Online course: JavaScript at Udemy
January 11, 2030 - March 17, 2026
Institute of Psychology and Entrepreneurship at Donetsk, Ukraine
January 1, 2002 - January 1, 2007
Bachelor's Degree in Foreign Economic Management at Institute of Psychology and Entrepreneurship
January 1, 2001 - December 31, 2007
Frontend Developer Certification at Tel - Ran Programming School
October 1, 2022 - August 1, 2023
German Language Course - B1 Certification at Diakonisches Werk an der Saar
June 1, 2024 - August 1, 2025

Qualifications

Frontend Web Development Course Certificate (Tel-Ran.de)
August 1, 2023 - March 17, 2026
Frontend Web Development Online Course (Tel-Ran.de, Tel-Ran.de GmbH)
August 1, 2023 - March 17, 2026
Teilnahme Zertifikat: Frontend Web Development (Online)
August 1, 2023 - March 17, 2026
Frontend Developer Certification
October 1, 2022 - August 1, 2023
German Language Course - B1 Certification
June 1, 2024 - August 1, 2025

Industry Experience

Software & Internet, Professional Services, Media & Entertainment, Retail, Education, Other

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
See more