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IDHL career site
Web & eCommerce - Front End · Leeds · Hybrid

Senior 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.

Your role as Senior UI Engineer:

As a Senior UI Engineer, you’ll operate as a technical leader across multiple projects and teams, shaping frontend architecture, enforcing platform-wide standards, and mentoring developers at all levels. You’ll play a critical role in ensuring code quality, consistency, and performance across the frontend practice, while collaborating with designers, backend developers, and stakeholders to deliver user-focused digital experiences. This is a senior technical role for developers who combine deep expertise with strong communication and leadership skills.

What You’ll Do

  • Build high-quality, scalable Shopify solutions across themes, apps, checkout, and headless builds

  • Own features end-to-end — from technical design to delivery and support

  • Collaborate closely with designers, PMs, and clients to deliver excellent ecommerce experiences

  • Champion clean code, performance, testing, and documentation

  • Mentor teammates and contribute to better development standards and tooling

What You’ll Bring

  • Strong experience with Shopify (themes, apps, APIs, checkout, Markets, and GraphQL)

  • Advanced JavaScript / TypeScript skills and solid OOP fundamentals

  • Experience with headless commerce (Hydrogen, Oxygen, or React-based frameworks)

  • Performance-focused mindset, including Lighthouse optimisation

  • Confident Git workflow and experience with CI/CD pipelines

Nice to Have

  • Experience with Gadget.dev, Shopify POS, or B2B features

  • Knowledge of modern build tools (Webpack, Yarn, Gulp, etc.)

  • Shopify certifications (or willingness to work toward them)

Why Join Us

  • Work on varied, high-impact ecommerce projects

  • Real ownership, trust, and autonomy

  • Strong focus on quality, learning, and career progression

Full Job Spec Available Upon Request

Department
Web & eCommerce - Front End
Role
Senior UI Engineer
Locations
Leeds
Remote status
Hybrid
Yearly salary
£40,000 - £55,000
Picture of Sophia Robinson
Contact Sophia Robinson Senior Talent Acquisition Specialist – Central Ops - People

Perks of the job

  • Hybrid working

    Prefer WFH or in the office? Enjoy the best of both with our hybrid working policy.

  • Extra time off

    Buy up to an additional week of leave or trade leave for extra salary.

  • Flexi time

    Early bird or night owl? Adjust your hours to fit your lifestyle, whether that's starting earlier or finishing later.

  • Time4You days

    Take up to four half-days a year for your wellbeing, so you can focus on you.

  • Financial & mortgage support

    Our partnerships with Salary Finance and Charles Cameron provide you with financial support and mortgage advice.

  • Health & wellbeing

    Access a wealth of resources to help and support you depending on your situation, including counselling and legal support.

  • Discounts & savings

    An employee portal offering discounts and cashback for supermarkets, gym memberships, and more.

  • 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.

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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.

Founded in 2000
Co-workers About 500
Web & eCommerce - Front End · Leeds · Hybrid

Senior UI Engineer (Shopify)

Do the work you’re proud of, with support at every step.

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