Principal UI Engineer (Shopify)
Do the work you’re proud of, with support at every step.
Who are IDHL?
At IDHL, we’re more than a digital agency, we’re a strategic partner to ambitious brands, helping them accelerate growth in the digital economy.
Our expertise is delivered through three core divisions: Performance, Web & eCommerce, and Intelligence – all working closely together to create impact across channels.
We’re also home to Fostr, a Shopify Plus agency for luxury and lifestyle brands, and The MTM Agency, specialists in integrated marketing and audience engagement.
What connects it all is our focus on outcomes, not just outputs. We back each other, take pride in what we do, and make sure the way we work works for everyone.
Key Highlights
Lead the technical delivery of complex Shopify projects across themes, apps, checkout, and headless builds
Own architecture decisions, code quality, performance, and long-term maintainability
Act as the go-to technical authority and escalation point for teams and clients
Drive best practices in JavaScript/TypeScript, OOP, testing, and documentation
Shape and improve development tooling, CI/CD pipelines, and local environments
Mentor developers and set high standards for delivery across the team
Partner closely with PMs, designers, and clients to deliver exceptional ecommerce solutions
Work with cutting-edge Shopify features including GraphQL, Markets, Hydrogen/Oxygen, and checkout customisation
Ideal For Someone Who
Is an expert in Shopify development and ecommerce architecture
Enjoys solving complex technical challenges and leading by example
Cares deeply about performance, code quality, and scalability
Thrives in a client-facing, collaborative agency environment
Wants real ownership, influence, and progression
Full Job Spec Available Upon Request
- Department
- Web & eCommerce - Front End
- Role
- Frontend Principal Developer
- Locations
- Leeds
- Remote status
- Hybrid
- Yearly salary
- £50,000 - £75,000
Perks of the job
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Hybrid working
Prefer WFH or in the office? Enjoy the best of both with our hybrid working policy.
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Extra time off
Buy up to an additional week of leave or trade leave for extra salary.
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Flexi time
Early bird or night owl? Adjust your hours to fit your lifestyle, whether that's starting earlier or finishing later.
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Time4You days
Take up to four half-days a year for your wellbeing, so you can focus on you.
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Financial & mortgage support
Our partnerships with Salary Finance and Charles Cameron provide you with financial support and mortgage advice.
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Health & wellbeing
Access a wealth of resources to help and support you depending on your situation, including counselling and legal support.
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Discounts & savings
An employee portal offering discounts and cashback for supermarkets, gym memberships, and more.
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Customise bank holidays
Swap religious-based bank holidays for those that matter to you.
Invested in your growth
Personal and professional development are core to life at IDHL. Harnessing potential, we’ll endeavour to support your career aspirations with our training programmes and personalised development plans.
Inclusivity matters to us
We want our workplace to reflect the diversity of the world we live in. At IDHL, we foster an inclusive environment where every team member feels heard, supported, and valued. We aim to attract, develop, and retain the very best people irrespective of background, beliefs, or personal characteristics.
Our jobs
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Paid Social Technical Account DirectorPerformance - Paid Social · Leeds · Hybrid
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Principal UI Engineer (Shopify)Web & eCommerce - Front End · Leeds · Hybrid
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Senior UI Engineer (Shopify)Web & eCommerce - Front End · Leeds · Hybrid
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Client Services ExecutiveWeb & eCommerce - Client Services · Leeds · Hybrid
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Paid Social Technical Account ManagerPerformance - Paid Social · Leeds, Manchester · Hybrid
Leeds
About IDHL
We're more than just a digital agency; we're our client's key partner in growth. Our superpower is helping ambitious brands accelerate their growth in the digital economy.
Already working at IDHL?
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