Shopify Developer - Mid-Weight - Up to £45k

Haslo Digital; Manchester; Hybrid; GBP 42,000 - 64,000; Full time

Benefits offered by this job

Private health insurance

Mentorship from founder

Leadership path in team

Job summary

Haslo Digital, a Manchester-based eCommerce agency, is seeking a Mid-Weight Shopify Developer to own development delivery across a growing client portfolio. You won't be a cog in a ticket queue—you'll build features and fixes with genuine autonomy from day one, collaborating directly with the founder.

You will craft and maintain Shopify themes, integrate AI tooling, and help shape our development standards, processes, and the future team as we scale.

Qualifications

• Backend development experience is essential.
• Experience with Vercel / Cloudflare / WordPress / Webflow.
• Comfort with APIs, integrations and tracking.
• Ambition to lead and shape development.

Responsibilities

• Build and maintain Shopify themes for premium clients.
• Integrate AI tooling to accelerate delivery.
• Scope, implement and deliver features end-to-end with client communication.
• Shape Haslo's development processes and tooling.
• Lead A/B testing with client teams to improve performance.
• Collaborate with founder on AI infrastructure.

Skills

Backend development

Vercel

Cloudflare

WordPress

Webflow

APIs

Integrations

Tracking

Ambition

Tools

Vercel

Cloudflare

WordPress

Webflow

Job description

About Haslo

We're a Manchester-based eCommerce agency specialising in Shopify development and paid media for premium Fashion, Beauty and Jewellery brands. We've grown 40% net year-on-year for two consecutive years, with 100% of our work coming through referrals. We're small, profitable, and building something with real momentum.

The Opportunity

We're hiring a Mid-Weight Shopify Developer to own development delivery across our client portfolio. You won't be a cog in a ticket queue - you'll be running builds, features and fixes for established brands with genuine autonomy from day one, working directly with the founder.

In line with modern AI development, we use Claude Code to turn around client requirements at pace - while making sure everything we ship meets our standards for coding style, languages and structure. We want someone who genuinely cares about their code and their work, but who also knows how to integrate AI - Claude Code or other tooling - into their day-to-day to make client work better and deliver it efficiently.

This is an early hire into a growing team, and you'd have real influence over how we build the development function - our tooling, our standards, and eventually the people who join after you. There's a genuine leadership path here, not just a title bump down the road.

What You'll Do

Build and maintain Shopify themes for high-end eCommerce clients - custom Liquid sections, performance work, third-party integrations, and app configuration. Use Claude and Claude Code as part of your daily workflow to move faster and take on more ambitious work. Scope and deliver features end-to-end, communicating directly with clients where needed. Shape how we scale development at Haslo - the processes, the tooling, and the team.

Run and direct A/B tests with the wider Haslo team and client teams on client stores, improving performance, conversion rates and site behaviour consistently to help our clients grow.

Help develop more AI infrastructure into the business alongside the founder to help us make processes more efficient, and give the whole team a clearer view over the business, what's on, and where we're going.

What We're Looking For

Highly valued: Backend development experience. Exposure to Vercel, Cloudflare, WordPress or Webflow. Comfort across the wider stack - APIs, integrations, tracking. Ambition beyond the day-to-day of theme work.

Why Haslo?

Flexibility and autonomy - flexible hours (start 8–10am, finish 4–6pm), genuine ownership of your projects and your development.

Hybrid working - 3 days in our Manchester city centre office, 2 days remote.

Premium clients - established brands that invest properly in their eCommerce.

Clients that stay - over 90% of our site builds become retainer clients. Our retainer clients have an average lifespan of over 3 years with us.

Growth - you'll be one of the first hires, with direct influence over how we build the team and the services.

Small team, big exposure - you'll learn fast because you'll be hands-on with everything. Fail fast, learn faster.

Package

Private health insurance through Vitality.

Direct mentorship from the founder.

Clear path into team leadership.

Location

Based within 30 minutes of Manchester city centre.