Senior Shopify Developer (Contract)

Location: Fully remote (worldwide, minimum 80% crossover with UK business hours)

Contract: Freelance, 3–6 month initial contract (extension likely)

Rate: £220 - £250 pd (40 hours per week)

Start: ASAP

About UWP

Underwaterpistol is an independent Shopify Plus agency built on a simple belief: real impact comes from tight-knit, senior teams who own outcomes end-to-end.

We’ve never tried to become the biggest agency in the room. Instead, we’ve focused on building a team of experienced people who think independently, challenge assumptions, and move quickly when it matters.

Our clients come to us when they want more than a website build. They want a partner who will challenge the brief, bring better ideas, and help them make confident decisions about how their eCommerce should evolve.

Inside the agency, that means we trust people to take ownership of their roles and contribute to the momentum of the business.

Role Overview

You’ll be responsible for building and delivering high-quality ecommerce experiences across Shopify projects.

You’ll work closely with designers, PMs and other developers to bring ideas to life, while owning your own output and contributing to overall delivery quality.

This is a hands-on role where you’re expected to:

• Take ownership of tasks

• Manage your time effectively

• Deliver clean, maintainable code

• Flag risks early and communicate clearly

Key Responsibilities

• Build out design comps accurately and efficiently

• Write structured, well-organised, reusable code

• Inspect, debug and troubleshoot bugs and QA issues

• Ensure technical feasibility of UI/UX designs

• Collaborate with designers, PMs and developers

• Deliver Shopify builds, enhancements and integrations

• Contribute to internal standards and best practices

• Communicate progress clearly, flagging blockers early

Skills & Experience

Essential

• Strong experience with Shopify

• Proficiency in HTML5, CSS3 and JavaScript

• Experience working with Liquid

• Experience with Shopify APIs and integrations

• Strong understanding of responsive development and cross-browser compatibility

• Experience with version control (Git or similar)

• Strong attention to detail and eye for design

• Good communication skills and ability to work remotely

Nice to have

• Experience with React, Vue or similar frameworks

• Experience with Node.js or backend development

• Experience working across multiple client projects

• Exposure to app development or off-platform builds

What we’re looking for

• Someone who can hit the ground running

• Comfortable working across multiple projects

• Strong ownership mindset

• Able to work autonomously without heavy oversight

• High standards when it comes to quality and delivery