# Volodymyr Zubko > Lead Full-Stack Engineer, GenAI Location: Mountain View, California, United States Profile: https://flows.cv/volodymyrzubko I’m a Tech Lead and Full-Stack Engineer with over 19 years of experience, combining deep technical expertise with strong leadership across teams, products, and AI-powered systems. My current focus is on building LLM-integrated applications using technologies like MCP (Model Context Protocol), retrieval-augmented generation (RAG), and cloud-native AI services (e.g., Amazon Bedrock). I lead development efforts that bring together Python, TypeScript, Next.js, and modern backend services to deliver intelligent, scalable, and secure solutions. Throughout my career, I’ve successfully led cross-functional teams, driven technical vision, and delivered high-impact applications in education, fintech, eCommerce, and enterprise SaaS. Leadership Highlights: 🔹 Defined architecture and led implementation of full-stack platforms powered by LLMs and vector search 🔹 Mentored developers and shaped high-performing, autonomous engineering teams 🔹 Bridged communication between product, business, and technical teams to align on goals and outcomes 🔹 Advocated and implemented best practices in system design, scalability, and code quality Core Technical Skills: 🔹 AI / LLM / NLP • RAG, Vector Stores, Text-to-SQL • Model Context Protocol (MCP), Bedrock • Integration of custom AI tools into applications 🔹 Full-Stack Development • TypeScript, React, Next.js, Node.js, Express • Python, FastAPI, Django 🔹 Cloud & Infrastructure • AWS (EC2, S3, Lambda, RDS, Bedrock, Redshift) • Firebase, Twilio, 3rd-party APIs 🔹 Data & Backend • PostgreSQL, MongoDB, MySQL • REST APIs, WebSocket, Realtime Systems 🔹 Frontend & Tooling • Component Libraries (Cloudscape, Material UI, Bootstrap) • Webpack, npm, CI/CD pipelines My approach blends hands-on engineering with strategic technical leadership, enabling teams to build robust, future-ready products. I thrive in dynamic environments where AI meets real-world applications, and where thoughtful engineering leads to meaningful impact. Let’s connect and build the future of intelligent systems. ## Work Experience ### Senior Full-Stack Engineer, GenAI @ Amazon Jan 2024 – Present | Mountain View, CA ### Lead Full-Stack Engineer, GenAI @ Makeen Custom Software Development & Technology Services Jan 2024 – Present | Mountain View, CA ### Tech Lead Full-Stack Frontend / Backend WEB Developer @ Upwork Jan 2023 – Jan 2024 | Freeport, New York, United States I'm a top-rated freelancer in the web development category. 100% Job Success. ### Tech Lead / Frontend React Tech Architect @ nu. Jan 2022 – Jan 2023 | Zurich, Switzerland ### Technical Lead @ Student Marketing Agency Jan 2020 – Jan 2021 | Los Angeles, California, United States • Designing the architecture of the time tracking platform for employees. • Creation of microservice architecture of the server part. • Contributed to the development of a design system to promote consistency and reusability across the application. • Employed React, React Hooks, Vue.JS, Node.JS, TypeScript / JS ES6, SWR, Redux, and HTML5, CSS, DOM Tailwind CSS to create intuitive and high-performance user interfaces. • I designed a tailored API layer to manage all Create, Read, Update, and Delete (CRUD) operations, efficiently handled JWT token management (Auth0), and incorporated interceptors to include custom headers. • Creating a cross-platform desktop application using React, Socket.io, Node.js and Electron. • Wrote the API server with Express and GraphQL, integrating it with the data source PostgreSQL, defining the GraphQL application schema and type system, as well as writing SQL queries to pull data from the DB. • I possess the skill to create EC2 instances and successfully deploy Single Page Applications (SPAs) on Amazon Web Services (AWS) S3 buckets. • Participated in code reviews, provided feedback, and ensured adherence to best practices • Collaborated with QA engineers to ensure that features were thoroughly tested and met quality standards ### Senior Full Stack Engineer @ Student Marketing Agency Jan 2018 – Jan 2020 ### Senior Full Stack Engineer @ IntelliSoft Jan 2013 – Jan 2018 | Kharkiv, Ukraine • SPA application development with React, Redux, React Router, and Node.js. • Demonstrated expertise in end-to-end development of e-commerce platforms and marketplaces, incorporating TypeScript, HTML5, CSS3, DOM, SASS, LESS, Bootstrap 4, Vue.JS and other frontend technologies. • Backend micro-services development using Express.js with databases PostgreSQL and MongoDB. • Designed GraphQL to build client applications (WEB/Electron) by providing an intuitive and flexible syntax and system for describing their‚ data requirements and interactions. • Worked with OAuth, Auth0 and JSON web tokens for authentication and authorization security configurations using Node.js. • Crafted a CRM system for goods accounting, API for commercial use, and an efficient database search feature. • Focused on delivering innovative CRM solutions to enhance efficiency, data accuracy, and commercial operations. • Skillfully managed the full development cycle, from conceptualization to deployment, in collaboration with cross-functional teams. • Experienced professional with a proven track record in designing and implementing employee entry systems. My objective is to develop and deploy innovative solutions that streamline entry processes, enhance security, and foster a welcoming work environment. ### Full Stack / E-commerce Developer @ NIX Tech Jan 2012 – Jan 2013 | Kharkiv, Ukraine • Led the development and maintenance of E-commerce websites, ensuring seamless functionality, high security, and exceptional user experiences. • Collaborated closely with design teams to implement responsive and visually appealing UI/UX designs, optimizing conversion rates and customer satisfaction. • Customized and configured E-commerce platforms such as Shopify, WooCommerce, Opencart and Magento to meet specific business requirements. • Integrated payment gateways, enabling secure online transactions and a wide range of payment options. • Implemented shopping cart functionality, streamlined checkout processes, and developed user-friendly product catalog management systems. • Managed inventory systems to track stock levels, trigger restocks, and prevent over-selling of products. • Conducted SEO optimizations to improve search engine rankings, driving organic traffic and revenue growth. • Optimized website performance, reducing load times and enhancing the overall shopping experience. • Ensured the highest level of security by implementing best practices, regular security audits, and SSL certifications. • Integrated third-party APIs to expand functionality, such as shipping and order tracking. • Collaborated with cross-functional teams to plan and execute A/B tests, analyze user behavior, and enhance website usability. ### Full Stack Developer / DevOps Networking Engineer @ Sloboda Solutions Jan 2008 – Jan 2012 | Kharkiv, Ukraine • Played a pivotal role in the development and maintenance of the internet provider's customer-facing web applications and portals. • Collaborated closely with UI/UX designers, backend developers, and product managers to create visually appealing and user-friendly interfaces that align with brand guidelines. • Managed network infrastructure, including routers, switches, and firewalls, ensuring optimal performance and uptime. • Implemented network security measures, including firewall rule configurations and intrusion detection systems. • Participated in the planning and execution of network upgrades and migrations. • Collaborated with cross-functional teams to troubleshoot and resolve network-related issues. • Conducted network capacity planning to accommodate future growth and increased traffic demands. • Documented network configurations, diagrams, and standard operating procedures. • Assisted in the evaluation and selection of networking hardware and software solutions. ### Web Developer / System Administrator @ oDesk Jan 2005 – Jan 2008 | Kharkiv, Ukraine I have created websites using CMS systems. Created responsive web pages using PSD files. We have implemented e-commerce and payment integrations. Set up LAMP on Debian / CentOS / Gentoo servers. Made sites look similar on different browsers. ## Education ### Master's degree in Computer Science National Technical University "Kharkiv Polytechnic Institute" ### Bachelor's degree in Computer Science National Technical University "Kharkiv Polytechnic Institute" ## Contact & Social - LinkedIn: https://linkedin.com/in/vova-zubko --- Source: https://flows.cv/volodymyrzubko JSON Resume: https://flows.cv/volodymyrzubko/resume.json Last updated: 2026-04-05