Lead / Senior Full Stack Software Engineer in Leeds

Lead / Senior Full Stack Software Engineer in Leeds

Leeds Full-Time 60000 - 75000 £ / year (est.) Home office (partial)
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At a Glance

  • Tasks: Lead and architect innovative Shopify solutions while collaborating with diverse teams.
  • Company: Onstate, a dynamic Shopify agency in Leeds with a hybrid work culture.
  • Benefits: Competitive salary, cash back medical care, generous holiday, and flexible remote work.
  • Other info: Exciting projects, continuous learning, and excellent career growth opportunities await you.
  • Why this job: Join us to push the limits of e-commerce technology and make a real impact.
  • Qualifications: 5+ years in JavaScript, strong Shopify knowledge, and experience with cloud platforms.

The predicted salary is between 60000 - 75000 £ per year.

Requirements

  • We are looking for a Lead/Senior Full Stack Shopify Developer who understands the commercial realities of e-commerce and takes pride in the quality of our engineering.
  • Strong knowledge of Shopify, including its capabilities, quirks, and how to build custom workarounds when it hits its limits.
  • 5+ years experience in Java Script.
  • Strong knowledge of Node JS and Vanilla Java Script (ES6+).
  • Experience with serverless technology and deploying cloud functions.
  • Experience with AI tools and knowing when and where to use them effectively.
  • Experience with cloud platforms such as AWS, GCP, or Azure.
  • Experience working with enterprise CMS platforms such as Drupal or Umbraco.
  • A solid understanding of User Stories and agile workflows.
  • Experience with Test Automation, TDD, or BDD.

Responsibilities

  • Architect and build solutions that push Shopify to its limits.
  • Define our technical approach and take ownership of our processes.
  • Ensure we deliver reliable, scalable, and maintainable systems.
  • Work within multidisciplinary teams across multiple high-stakes projects.
  • Lead the technical delivery of projects while keeping a close eye on our strategy.
  • Design robust technology solutions and maintainable codebases.
  • Convert complex scope into clear technical briefs and comprehensive project documentation.
  • Champion new technologies and standards.
  • Educate yourself and your team on bleeding-edge technology.
  • Collaborate cross-functionally with project management, design, and data & insight.
  • Manage team sprint burndowns, communicate budget impacts, and refine project scope with the PMs.
  • Provide constructive feedback on UI/UX, suggest innovations, and guide designs around Shopifys technical limitations.
  • Champion user value by defining what data we need to collect, how we collect it, and why it matters.
  • Define, refine, and communicate our core development processes and best practices across the agency.

Technologies

  • AI
  • AWS
  • Architect
  • Azure
  • Cloud
  • CMS
  • Drupal
  • GCP
  • Java Script
  • Node JS
  • REST
  • Serverless
  • Shopify
  • TDD
  • Umbraco
  • UX UI Design
  • Support
  • Fullstack

More

We are Onstate, a specialist Shopify agency based in Leeds with a hybrid approach, and most of our team works in the office two to three days a week with flexibility to work remotely the rest of the time.

We take on complex, high-scale Shopify projects, including large product catalogues, custom systems, and highly personalised customer journeys.

We deliver work through Discover, Define, Deliver, and Deploy, and we continually refine how we work.

We offer a salary of £60,000 to £75,000, cash back medical care, a 5%/3% pension contribution, 25 days holiday plus your birthday off, a Mac or PC based on preference, dedicated time for process development and R&D, company events, on-site parking, and work from home flexibility.

  • last updated 36 week of 2026
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Lead / Senior Full Stack Software Engineer in Leeds employer: Onstate Ltd

At Onstate, we pride ourselves on being a leading Shopify agency in Leeds, offering a dynamic work culture that balances collaboration and flexibility. Our commitment to employee growth is evident through dedicated time for R&D and process development, alongside competitive benefits such as cash back medical care, generous holiday allowances, and a supportive environment for innovation. Join us to work on complex e-commerce projects while enjoying the perks of a hybrid working model that values both in-office teamwork and remote flexibility.

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Contact Details:

Onstate Ltd Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Lead / Senior Full Stack Software Engineer in Leeds

Join Local Tech Meetups

Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Onstate Ltd or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!

Contribute to Open Source Projects

Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Onstate Ltd.

Tap into Online Developer Communities

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Explore Job Boards Specifically for Tech Roles

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We think you need these skills to ace Lead / Senior Full Stack Software Engineer in Leeds

Shopify
JavaScript
NodeJS
Serverless Technology
Cloud Functions
AI Tools
AWS

Some tips for your application 🫡

Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.

Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Onstate Ltd.

Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Onstate Ltd and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!

Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!

How to prepare for a job interview at Onstate Ltd

Brush Up on Your Coding Skills

For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.

Know Your Tools and Frameworks

Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Onstate Ltd uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.

Showcase Your Projects

Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.

Prepare for Behavioural Questions

While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.