> Markdown version of [/jobs/ext/332453-full-stack-developer-mid-senior](https://www.wearedevelopers.com/jobs/ext/332453-full-stack-developer-mid-senior). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Full Stack Developer (Mid-Senior)

- **Company:** Agency51
- **Location:** UK (Remote available)
- **Experience:** Experienced
- **Salary:** £45,000.0 - £55,000.0
- **Contract:** Permanent contract
- **Skills:** HTML, JavaScript (Programming Language), Amazon Web Services, Cascading Style Sheets (CSS), Cloud Computing, Cursor (Graphical User Interface Elements), Middleware, Node.Js, BigCommerce, Next.js, Shopify, ReactJS, Backend, Magento, Codebase, Front End Software Development, Api Management
- **Published:** June 6, 2026
- **Apply:** https://uk.indeed.com/viewjob?jk=057e36480598e8ed

## About the Role

Do you have experience in SCSS?, Essential

 * Solid full stack development experience (Node.js back-end, modern JS/HTML/SCSS front-end)
 * Comfortable picking up unfamiliar platforms, codebases, and tooling quickly - no fear of the unknown
 * Strong communicator - able to hold your own in a client call without hand-holding
 * Self-directed and delivery-focused; you don't need to be told twice
 * Pragmatic attitude to problem-solving - done well beats perfect and late

Strong Advantage

 * Experience working in or with e-commerce platforms (any - BigCommerce, Shopify, Magento, etc.)
 * Cloud platform experience - GCP, AWS, or Vercel; we run on GCP but the underlying concepts transfer and we care more about comfort in cloud-deployed environments than which logo is on your CV
 * Hands-on experience with AI coding tools (Copilot, Cursor, or similar) as part of your day-to-day workflow
 * Any involvement in defining or building AI-assisted development processes - prompt frameworks, agentic workflows, internal tooling

Bonus

 * Strong front-end focus with solid CSS and React experience
 * Familiarity with ERP or middleware integrations, * Development: 2 years (required)

## Description

We're looking for a mid-senior full stack developer to join us permanently and remotely. This is a hands-on role with real variety - you'll work across front-end, back-end, and integrations, often within the same week.

You'll be client-facing from day one, contributing to technical conversations, scoping discussions, and occasionally leading them. You'll be trusted to manage your own workload with minimal oversight. That means knowing when to ask and when to just get on with it.

What You'll Work On

 * Front-end development: HTML, SCSS, JavaScript - building and customising storefronts
 * Back-end development: Node.js middleware and integration services running on GCP
 * API integrations - connecting platforms, ERPs, and third-party services
 * Technical client communication - scoping, clarifying requirements, and managing expectations directly
 * E-commerce implementations across varying scales and complexity

We work heavily in the BigCommerce ecosystem, but platform experience matters less than the ability to hit the ground running in an unfamiliar stack.


## Related Videos

- [WeAreDevelopers LIVE – AI, Freelancing, Keeping Up with Tech and More](https://www.wearedevelopers.com/videos/1786-wearedevelopers-live-ai-freelancing-keeping-up-with-tech-and-more)
- [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web)
- [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock)
- [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape)
- [NoLoJS - Avoiding JavaScript Cruft with HTML and CSS - Aaron T. Grogg](https://www.wearedevelopers.com/videos/1806-nolojs-avoiding-javascript-cruft-with-html-and-css-aaron-t-grogg)
- [Nest.js - TypeScript in the backend can also be clean](https://www.wearedevelopers.com/videos/1033-nest-js-typescript-in-the-backend-can-also-be-clean)

## Related Articles

- [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers)
- [Fullstack Developer Salary UK](https://www.wearedevelopers.com/magazine/251-fullstack-developer-salary-uk)
- [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers)
- [What’s the Difference Between Frontend and Backend Development?](https://www.wearedevelopers.com/magazine/240-what-s-the-difference-between-frontend-and-backend-development)
- [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline)
- [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers)