Senior BigCommerce Front-End Engineer
EPAM Systems
Responsibilities
- Take full ownership of BigCommerce storefront architecture, including headless and native Stencil builds, design system integration, component libraries, and performance guardrails
- Build and maintain modern front-end frameworks, API orchestration layers, and personalization hooks that drive dynamic, omnichannel experiences
- Convert UX designs into production-quality, responsive UI, ensuring accessibility and localization/internationalization compliance
- Guide code reviews, uphold engineering standards, and enable automated testing/CI pipelines for storefront repositories
- Deliver advanced BigCommerce customizations, including checkout flows, theme extensions, GraphQL storefront API usage, micro-frontend patterns, and third-party app integrations
- Coordinate CMS, DAM, and marketing tool integrations to streamline content operations, campaigns, and PIM-driven merchandising updates
- Improve site speed, SEO, and Core Web Vitals while maintaining observability dashboards for proactive issue detection
- Guide nearshore/offshore front-end engineers, manage daily tasks, remove blockers, and promote an AI-augmented development culture
- Document best practices, runbooks, and playbooks to support transitions, onboarding, and continuous improvement while maintaining BAU releases
- 5–10 years of front-end engineering experience building enterprise commerce or experience platforms
- Deep knowledge of BigCommerce, including headless implementations using Storefront GraphQL, REST Admin API, Channels API, and BigCommerce Widgets/App frameworks
- Strong proficiency in JavaScript/TypeScript, React/Next.js (or Remix), and Node.js
- Solid skills in CSS-in-JS, state management (Redux, Zustand), and component-driven development (Storybook, atomic design)
- A track record of leading client-facing engagements, translating UX and business goals into technical plans, and explaining trade-offs on the fly
- Proven ability to deliver resilient, high-performing frontend experiences integrated with MACH services (CMS, search, personalization engines, CDP/CRM, DAM)
- Strong grasp of responsive design, accessibility, SEO, analytics tagging, and A/B testing enablement
- Hands-on experience with CI/CD pipelines (GitHub Actions, Azure DevOps, CircleCI)
- Working knowledge of automated testing (Jest, Playwright/Cypress) and performance optimization tools (Lighthouse, WebPageTest)
- Exposure to cloud AI-enabled experiences, personalization engines, or conversational/agentic commerce solutions
- Familiarity with Shopify, commercetools, or SAP Commerce, along with the ability to bring composable best practices across platforms
- Understanding of retail/promotional calendars, multi-lingual content operations, and store-level digital tactics
- Background in design ops, Figma-to-code workflows, and design system governance
- Confidence using AI copilots and automation to speed up development and expand regression coverage