Available to hire
I’m Viktor Lytvynenko, a seasoned full stack developer specializing in building performant, scalable web apps. I leverage React/Next.js, TypeScript, Node.js, and full-stack JavaScript ecosystems to deliver real-time dashboards, data visualizations, and responsive UI. I enjoy architecting cloud-native solutions with containerization, CI/CD, and serverless patterns, and I’m passionate about developer tooling, observability, and UX.
I lead end-to-end development, define architecture, collaborate across cross-functional teams, and mentor peers to maintain engineering excellence. My work blends technical rigor with product-minded thinking to drive measurable business impact and high user satisfaction.
Skills
Experience Level
Work Experience
Full Stack Developer at The Clicks
July 1, 2024 - PresentOwned end-to-end delivery of four production-grade applications, including a real-time hockey team management platform with live stats, schedules, and notifications; a scalable multi-location beauty clinic platform with booking, payments, and CMS; a cross-platform taxi app with geolocation integration and low-latency ride tracking; and the corporate marketing website built with Next.js 14 and Contentful. Integrated Stripe for payments, Clerk for authentication/roles, and Cloudinary for media optimization. Led architecture discussions, connected backend APIs (Node.js/Express/Strapi) to PostgreSQL and MongoDB, and implemented CI/CD pipelines with GitHub Actions and Docker deployments on VPS with Nginx.
Full Stack Developer at PROMADE INN
October 1, 2024 - September 26, 2025Developed a scalable web platform to centralize access to services for Canadian immigrants. Built modular front-end with Next.js and TypeScript (SSR) to optimize API calls and improve performance. Architected backend services with Express.js and MongoDB/Mongoose, implemented Clerk-based authentication and RBAC, and set up CI/CD pipelines with GitHub Actions and Docker deployments to AWS. Driving QA with automated unit and integration tests, improving deployment speed and reliability.
JavaScript Developer | Mentor at LECTRUM
July 1, 2023 - September 26, 2025Mentored 20+ students in JavaScript/TypeScript, guiding real-world coding practices, debugging, and architectural decisions; delivered 4 advanced applications focusing on runtime performance, efficient DOM manipulation, and responsive UI. Integrated RESTful APIs and WebSockets to teach real-time data handling and frontend-backend communication; led hands-on workshops and established coding standards and testing practices to improve project quality and scalability.
Full Stack Developer (React/React Native) at FESTOENTERTAINMENT
April 1, 2023 - September 26, 2025Built a responsive company website and a cross-platform mobile app using React Native and Redux, delivering a consistent UX across devices and boosting engagement. Integrated Firebase for real-time data syncing, push notifications, and authentication; architected frontend state management and ensured robust backend synchronization with Node.js/Firebase.
Full Stack Developer at FREELANCE
March 1, 2022 - September 26, 2025Developed 30+ custom websites and landing pages across industries (e-commerce, healthcare, services) with a focus on performance, accessibility, and maintainability. Built backend services with Node.js and MongoDB, designed APIs and server-side logic, and delivered end-to-end ownership from requirements to deployment and post-launch support.
Full Stack Developer at THE CLICKS
July 1, 2024 - PresentEnd-to-end ownership of four production-level applications: a real-time hockey team management platform with live stats, schedules, and notifications; a scalable multi-location beauty clinic platform with booking and payments; a cross-platform taxi app with low-latency ride tracking; and the corporate marketing website built with Next.js 14 and Contentful. Integrated Stripe for payments, Clerk for authentication and role management, and Cloudinary for media optimization; mentored two junior developers; architected backend APIs with Node.js/Express/Strapi; created CI/CD pipelines with GitHub Actions; deployed on VPS with Nginx; achieved sub-1s TTFB and improved Core Web Vitals; collaborated with product and design to drive business outcomes, including a 30% lift in lead conversions for the clinic platform.
Full Stack Developer at PROMADE INN
October 1, 2024 - October 2, 2025Developed a scalable web platform to centralize access to services for Canadian immigrants; built modular front-end with Next.js and TypeScript leveraging SSR and optimized API calls; architected backend services with Express.js and MongoDB; implemented Clerk authentication and RBAC; set up CI/CD pipelines with GitHub Actions, containerized with Docker, and deployed to AWS; introduced automated testing workflows and QA processes that reduced bugs by 40%.
JavaScript Developer | Mentor at LECTRUM
July 1, 2023 - October 2, 2025Mentored 20+ students in JavaScript and TypeScript, guiding them through real-world coding practices; delivered 4 advanced applications focusing on runtime performance, DOM efficiency, and responsive UI; integrated RESTful APIs and WebSockets to teach real-time data handling and frontend–backend communication; led hands-on workshops on API consumption, error handling, and testing; introduced structured coding standards and testing practices for scalable projects.
Full Stack Developer (React/React-Native) at FESTOENTERTAINMENT
April 1, 2023 - October 2, 2025Built a responsive company website and a cross-platform mobile app (Android) using React/React Native; integrated Firebase for real-time data syncing, push notifications, and secure authentication; architected frontend state management with Redux and optimized asynchronous flows; collaborated with design and backend teams to improve iteration speed and reduce deployment friction; contributed to CI/CD workflows for web and mobile apps.
Full Stack Developer at FREELANCE
March 1, 2022 - October 2, 2025Developed 30+ custom websites and landing pages for clients across industries, delivering fully responsive, cross-browser compatible solutions with strong performance and accessibility; architected backend services with Node.js and MongoDB, including API design and data modeling; established version control and basic CI/CD pipelines; owned end-to-end project delivery and mentored junior developers when needed.
Full Stack Developer at The Clicks
July 1, 2024 - October 28, 2025Own end-to-end development of 4 production-grade applications: a real-time hockey team management platform with live stats, schedules, and notifications; a scalable multi-location beauty clinic platform with booking, payments, and content management; a cross-platform taxi app built with React Native with geolocation-based ride tracking; and the company marketing site built with Next.js 14 and Contentful. Integrated Stripe, Clerk, and Cloudinary for payments, auth, and media optimization. Led two junior developers, instituted TS best practices, and improved sprint velocity by ~20%. Architected backend APIs with Node.js/Express/Strapi, connected to PostgreSQL and MongoDB. Implemented CI/CD with GitHub Actions, Docker, and Nginx on VPS, achieving 99.9% uptime. Employed server components, React Server Actions, and Tailwind/Nativewind for fast load times and strong Core Web Vitals. Collaborated with product and design teams to deliver business-value features, including a 30% lead-conversion
Full Stack Developer at PROMADE INN
October 1, 2024 - October 1, 2024Developed a scalable web platform to centralize access to services for Canadian immigrants, building modular front-end architecture with Next.js and TypeScript (SSR) and backend services with Express.js and MongoDB/Mongoose. Implemented Clerk-based authentication, set up CI/CD pipelines, containerized with Docker, and deployed on AWS. Introduced automated unit and integration tests, reducing QA bugs by 40%. Collaborated across design, product, and non-technical stakeholders to ensure accessibility and smooth user flows.
JavaScript Developer | Mentor at LECTRUM
July 1, 2023 - July 1, 2023Mentored 20+ students in JavaScript and TypeScript, guiding real-world coding practices, debugging, and architectural decision-making. Delivered 4 advanced native JS/TS applications focused on runtime performance and responsive UI. Integrated RESTful APIs and WebSockets to teach real-time data handling and frontend-backend communication. Led workshops on API usage, error handling, and state management, establishing coding standards and testing practices to improve student proficiency and project quality.
Full Stack Developer (React/React-Native) at FESTOENTERTAINMENT
April 1, 2023 - April 1, 2023Built a responsive company website and a cross-platform mobile app (Android) using React Native and Redux, delivering consistent experience across devices and boosting engagement by 25%. Integrated Firebase for real-time data sync, push notifications, and secure auth. Architected frontend state management and optimized asynchronous flows; contributed to CI/CD workflows for web and mobile apps; participated in Agile cycles with code reviews and retrospectives.
Full Stack Developer at FREELANCE
March 1, 2022 - March 1, 2022Developed 30+ custom websites and landing pages across industries (e-commerce, healthcare, services), maintaining a 95% client satisfaction rate. Built backend services with Node.js and MongoDB, designed APIs and server-side logic, deployed with basic CI/CD pipelines, and ensured performance and accessibility. Mentored junior developers on projects, sharing best practices and review feedback.
Education
PhD at Institute of World Economy and International Relations, Kyiv, Ukraine
January 11, 2030 - January 1, 2002Master’s Degree (with honors) at Kyiv National Economic University
July 1, 1994 - July 1, 1999PhD, Economics at Institute of World Economy and International Relations, Kyiv, Ukraine
January 1, 2002 - October 2, 2025Master’s Degree (with honors) at Kyiv National Economic University
January 1, 1999 - October 2, 2025PhD, Economics at Institute of World Economy and International Relations, Kyiv, Ukraine
January 11, 2030 - January 1, 2002Master’s Degree (with honors) at Kyiv National Economic University
January 11, 2030 - January 1, 1999Qualifications
Python Intermediate
June 1, 2025 - July 1, 2025SQL Intermediate
January 1, 2025 - October 2, 2025Full Stack Web Development, Mate Academy
May 1, 2022 - August 31, 2022Python Intermediate
January 1, 2025 - October 2, 2025SQL Intermediate
January 1, 2025 - October 2, 2025Full Stack Web Development
January 1, 2022 - October 2, 2025Python Intermediate
January 1, 2025 - October 28, 2025Angular
January 1, 2025 - October 28, 2025SQL Intermediate
January 1, 2025 - October 28, 2025Introduction to LLMs
January 1, 2025 - October 28, 2025Full Stack Web Development
January 1, 2022 - October 28, 2025Industry Experience
Software & Internet, Professional Services, Education, Media & Entertainment, Other
Skills
Experience Level
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