Володимир

VOLODYMYR OLESKO
Full Stack Developer

Location: Odessa, Ukraine
Age: 38 years old
Email: [open contact info](look above in the "contact info" section)
Phone: [open contact info](look above in the "contact info" section)

PROFESSIONAL SUMMARY

Full stack developer with 9 years of commercial experience in web development, including 5+ years specializing in the React ecosystem
(Next.js, React Router, Redux, TanStack Query). Design and implement end-to-end features using React, PHP and Node.js. Delivered
enterprise e-commerce solutions on Salesforce Commerce Cloud (headless PWA Kit, SFRA) for world-famous brands, working with
distributed teams worldwide. Applying this headless-commerce background to Shopify: Liquid themes on Online Store 2.0, Storefront and
Admin GraphQL APIs, and Hydrogen storefronts. Mentor developers and use AI-assisted tools (Claude Code, Copilot) to speed up high-
quality delivery.

SKILLS

Core Technologies:
HTML5, CSS3, JavaScript/ES6+, TypeScript

Shopify Core:
Liquid (sections, blocks, snippets), Online Store 2.0 (JSON templates, app blocks), Dawn theme customization, metafields & metaobjects, Shopify
CLI, Theme Check, Ajax Cart API, Admin API (GraphQL), webhooks, Web Components, Markets (multi-language / multi-currency)

Shopify Headless:
Hydrogen (React Router), Oxygen, Storefront API (GraphQL), Customer Account API, Cart API, Next.js + Storefront API, Shopify Functions,
Checkout UI Extensions, custom apps (Node.js, Polaris, App Bridge), headless CMS (Contentful, Contentstack)

Frontend Stack:
React, Next.js, Redux, Zustand, Context API, React Router, TanStack Query, Hooks, JSX, Chakra UI, Tailwind CSS, Styled Components, Vue.js

Backend Stack:
Node.js, Express.js, NestJS, PHP, Laravel, MySQL, PostgreSQL, Prisma ORM, GraphQL, REST APIs

E-commerce & CMS:
Shopify, Salesforce Commerce Cloud (PWA Kit, SFRA, Commerce Cloud APIs), WordPress

Build & Development Tools:
Webpack, Vite, Babel, Docker, Postman, Shopify CLI

Testing & Quality:
Jest

Version Control & Collaboration:
Git, GitHub, Bitbucket, JIRA

Design & Prototyping:
Adobe XD, Figma, Sketch, Photoshop, Zeplin

AI & Development Tools - Claude Code & Copilot:
• Code generation and refactoring – Automated code improvements, bug fixes, and architectural refactoring using AI-assisted analysis
• Documentation and knowledge capture – Automatic generation of technical documentation, README files, and architecture guides for
complex projects
• Code review and optimization – AI-powered code quality analysis, performance optimization suggestions, and best practices implementation
• Testing & debugging – Automated test generation, debugging assistance, and error analysis for faster problem resolution
• Multi-file coordination – Simultaneous editing and refactoring across multiple files with intelligent context management
• TypeScript and type safety – Automated type definition generation and enforcement for improved code reliability
• VS Code Copilot integration – Leveraging GitHub Copilot for intelligent code completion, suggesting context-aware code snippets, and
accelerating development workflows within VS Code

SHOPIFY & HEADLESS COMMERCE

• Headless storefront architecture: built API-driven React storefronts with server-side rendering on Salesforce PWA Kit for enterprise brands,
the same pattern as Hydrogen with the Storefront API
• Shopify theme development: Liquid sections and blocks, JSON templates, metafield-driven content and Ajax cart on Dawn / Online Store 2.0
• Hydrogen storefronts: route loaders, Storefront API GraphQL queries, cart handling, streaming and caching strategies on Oxygen

WORK EXPERIENCE

2021 - Present | Valtech
Full Stack Developer

• Designed and implemented end-to-end features, covering both front-end and back-end, from requirements and architecture through to
delivery
• Lead technical discussions and architectural decisions for complex front-end solutions with enterprise clients
• Participated in workshops with clients and provided front-end estimates for migrating projects from e-commerce platforms to PWA Kit
• Mentor and guide junior and mid-level developers, establishing coding standards and best practices
• Design and develop scalable front-end solutions from scratch and optimize existing implementations
• Collaborate with cross-functional teams including product managers, designers, and QA to deliver high-quality solutions
• Conduct code reviews and implement performance optimization strategies for improved user experience
• Communicate technical requirements with clients and provide accurate development estimates

2018-2021 | OSF Digital
Front-End Developer

• Developed front-end components from scratch for 10+ websites
• Improved overall code quality and development practices
• Managed and updated 30+ WordPress websites
• Designed and implemented website speed optimization checklist

2017-2018 | Previous Company
Front-End Developer

• Developed front-end components from scratch for 10+ websites
• Improved overall code quality and development practices

LANGUAGES

English: Upper intermediate
Ukrainian: Native