Lead Shopify Developer / Senior Full Stack Engineer (E-commerce, Subscriptions, Scale)

Hybrid (2-3 days in office, UK, commutable to London)

We're working with a high-growth, founder-led DTC brand that has scaled rapidly and is now entering the next phase of its technology evolution. The business is migrating its commerce platform from a custom stack to Shopify and is looking for a hands-on Lead Developer / Senior Full Stack Engineer to take ownership of this critical transition and help shape the future of its e-commerce platform.

This is a role for someone who wants real ownership, commercial impact, and the chance to build at scale – not just deliver tickets.

The Opportunity

You'll be the technical lead on a fast-growing commerce platform, working across:

  • Shopify storefront and theme architecture (Online Store 2.0, Liquid, performance)
  • APIs, integrations, and subscription flows
  • Third-party services (payments, fulfilment, analytics, marketing tools)
  • Platform reliability, scalability, and conversion optimisation

You'll work closely with founders and commercial teams, helping translate business goals into robust, scalable technical solutions.

What You'll Be Doing

  • Leading development across a Shopify-based commerce platform
  • Building and evolving frontend experiences with a strong focus on performance and conversion
  • Designing and maintaining integrations with payments, subscriptions, fulfilment, and analytics platforms
  • Contributing to architectural decisions as the platform scales
  • Supporting and shaping the ongoing migration from a custom stack to Shopify
  • Acting as a senior technical partner to non-technical stakeholders

What We're Looking For

  • Strong experience building and scaling production e-commerce platforms
  • Solid Shopify expertise (Liquid, Online Store 2.0, theme architecture, APIs, apps)
  • Full-stack capability, with good frontend skills (JavaScript, HTML, CSS) and backend / integration experience (Node.js or similar)
  • Experience working with subscriptions, promotions, checkout flows, and performance optimisation
  • Comfortable working in a fast-moving, ambiguous environment with high ownership
  • Commercially minded – you understand how technology choices impact conversion and revenue
  • Clear communicator who can work closely with founders and non-technical teams

Why This Role?

  • A chance to own a core platform at a major growth inflection point
  • High autonomy and influence over technical direction
  • Real commercial impact in a scaling DTC business
  • A small, driven team with a bias for action and quality

If you're a senior Shopify or full-stack engineer who enjoys building at scale, solving real commercial problems, and taking true ownership, we'd love to hear from you.

Interview Process

We aim to keep the process focused and respectful of your time:

  • CV Review - we'll review your CV (and github/portfolio if available) to get a view of your experience to date
  • Technical Interview (45–60 mins) - a structured discussion covering Shopify, full-stack experience, migrations, and real-world e-commerce scenarios.
  • Live Pair Programming / Problem Solving Session (60 mins) - collaborative session working through a practical Shopify and commerce-focused challenge with one of our senior engineers.
  • Final Conversation with Founders (45 mins) - culture and leadership discussion, focused on ownership, communication style, and how you'd operate in a fast-growing, founder-led environment.

We move quickly and aim to give clear feedback at each interview stage.

So if you're a senior Shopify or full-stack engineer who enjoys building at scale, solving real commercial problems, and taking true ownership, we'd love to hear from you.

Job Details

Company
Launch Lab
Location
Slough, Berkshire, UK
Employment Type
Full-time
Posted