We're looking for a hands-on Lead Shopify Software Engineer to oversee technical execution, maintain code quality, and manage engineering delivery for complex e-commerce solutions built on Shopify Plus. You'll collaborate closely with Solution Architects and Product Managers to turn architectural plans into production-ready, high-performing systems. This role involves guiding development teams through an AI-enhanced software development lifecycle, which includes writing essential code, developing custom apps and headless storefronts, promoting agentic engineering practices, and coaching developers on the modern Shopify stack.

Kindly note that this role supports remote work, but only from within Ukraine.

Responsibilities

• Spearhead the build-out of custom Shopify Plus solutions, including headless storefronts (Hydrogen and Remix), custom middleware apps, and Liquid-based Online Store 2.0 themes where appropriate
• Create and ship custom platform extensions using Shopify Functions, Checkout UI Extensions, Customer Account UI Extensions, and Shopify Admin extensions
• Build solid backend services, webhook consumers, and data sync pipelines that connect Shopify with third-party enterprise systems (ERP, PIM, OMS, CRM)
• Work alongside the Shopify Solution Architect to translate high-level system designs into concrete engineering tasks, technical specs, and sprint deliverables
• Set and enforce engineering standards, covering thorough PR/code reviews, automated testing (unit, integration, E2E), and CI/CD pipelines (e.g., GitHub Actions, Shopify CLI workflows)
• Push forward storefront and API performance improvements, handling edge caching strategies on Shopify Oxygen, optimizing GraphQL query costs, and keeping Core Web Vitals green
• Advocate for AI-native development workflows across the team (e.g., Claude Code, Cursor, GitHub Copilot) to speed up feature delivery, scaffolding, and complex refactoring
• Define codebase-level context rules, custom prompts, and project guidelines so AI-generated code stays within Shopify API boundaries, TypeScript standards, and architectural patterns
• Use AI tooling to automate unit/E2E test generation, GraphQL schema validation, PR pre-reviews, and living technical documentation
• Apply strict quality, security, and verification guardrails to AI-assisted code generation to avoid hallucinations, performance regressions, or security vulnerabilities
• Take charge of technical debugging, root-cause analysis, and incident resolution across storefront, middleware, and integration layers
• Make sure all deliverables meet security standards, data privacy regulations, and Shopify API rate-limit constraints
• Proactively manage technical debt and steer refactoring efforts to keep the codebase maintainable long-term
• Coach and develop mid-level and senior engineers in modern TypeScript, React/Remix patterns, Shopify extensibility frameworks, and strong AI-assisted engineering practices
• Partner with QA engineers, UI/UX designers, and delivery managers to support accurate estimation, smooth sprint execution, and predictable releases
• Serve as the main engineering contact during technical standups, client demos, and release readiness reviews
  
  

Requirements

• 5+ years of professional software engineering experience in e-commerce or web application development, including 2+ years in a Lead or Senior role on Shopify Plus projects
• Strong hands-on skills in TypeScript, JavaScript, React, Remix, and Node.js, plus modern build tools (Vite) and styling frameworks (e.g., Tailwind CSS)
• Solid, hands-on experience with the Shopify GraphQL Admin API and Storefront API, including bulk operations, reliable webhook handling, and Shopify's data models (Metafields, Metaobjects)
• A track record of building Shopify Functions, Checkout UI Extensions, custom Shopify apps (using Shopify App Bridge / Polaris), and high-performance Online Store 2.0 architectures
• Real-world experience weaving AI coding assistants and agentic CLI/IDE tools into daily workflows, including context management, prompt engineering for code generation, AI-assisted testing, and reviewing AI-authored pull requests
• Strong grasp of Git workflows, automated testing frameworks (e.g., Vitest, Jest, Playwright), CI/CD automation, and application observability/logging
• Shown ability to lead engineering pods, run constructive code reviews, and clearly communicate technical progress and blockers to both technical and non-technical stakeholders
• English proficiency at B2 Upper-Intermediate level
  
  

Nice to have

• Official Shopify certifications (e.g., Shopify App Developer or Theme Developer Certification)
• Experience building custom Model Context Protocol (MCP) servers, agentic workflows, or automated CI/CD quality gates using LLM SDKs
• Experience with Rust or WebAssembly (Wasm) for building high-performance Shopify Functions
• Hands-on experience with middleware services, message queues, or containerized applications
• Familiarity with enterprise B2B e-commerce features, multi-currency/multi-market localization (Shopify Markets), and complex catalog migrations
  
  

We offer

• With us you can:
• Work on a flexible schedule remotely or from any of our comfortable offices or coworking spaces in Ukraine
• Receive the necessary equipment to perform your work tasks
• Change projects and technology stacks within EPAM
• Gain experience in various business domains (Insurance, E-commerce, Healthcare, Finance, Travelling, Media, Artificial Intelligence, and more)
• Relocation opportunities may be available for eligible candidates, depending on the role and openings at other EPAM locations
• Participate in volunteer, charity programs and communities (both technical and interest-based)
• We focus on your professional growth:
• You can plan your individual career path together with your manager
• Receive regular feedback from colleagues
• Improve your English for free with certified teachers (Speaking Clubs, client interview preparation courses, etc.)
• Get the opportunity to undergo free training and certification in AWS, GCP, or Azure Clouds
• Use the internal E-learn training program (18,200+ specialized training and mentoring programs)
• Access corporate accounts on LinkedIn Learning, Get Abstract and other partner resources
• Study at EPAM Solution Architecture School with the instructors who are practicing architects
• Develop as a leader, join Delivery Management, Resource Management, Leadership Essentials school and more
• Participate in internal communities (500+ meetups, technical discussions, brainstorming sessions, online events and conferences annually)
• What we offer:
• Vacation and sick leave (including a sick leave without a medical certificate)
• A wide range of Voluntary Medical Insurance programs providing both medical treatment and various preventive options (including sports activities)

Kindly be advised that the set of benefits, including learning, certification, and other opportunities, may vary depending on the role you apply for. Our recruiter will be able to share more details about the specific opportunity during your general interview.

EPAM strives to provide its global team of over 62,350 professionals in more than 55 countries with opportunities for professional growth from day one of collaboration. Our colleagues are the source of EPAM's success, so we value cooperation, strive to always understand our clients' business and aim for the highest quality standards. No matter where you are, you will join a dedicated, diverse community that will help you realize your potential to the fullest.