Junior Full-Stack Software Developer

Tewkesbury (UK) - Hybrid Remote (in-office on Tuesdays) - UK Applicants Only

Posted 6/9/2025

mmtm (pronounced momentum ) is a UK-based digital agency that designs and builds bespoke web apps for clients across industries. We're a small (but growing), remote-first team that cares about clean design, smart strategy, and code that actually gets used.

As long-term partners to our clients, we play a critical role in their growth through the products we build and manage. Right now, we're also growing our own in-house product suite - so it's an exciting time to get on board.

The Role

We're looking for a full-stack Ruby on Rails developer to join our friendly, fast-moving team. You'll be working closely alongside our lead developers to deliver high-quality digital solutions for our clients and their customers. You'll be learning on the job and our aim will be for you to progress quickly in a wide range of technical areas. We want to provide you with well rounded full-stack knowledge that you can apply to great success.

You'll be joining a close-knit squad of developers and PMs, helping shape and ship features from start to finish - working with Ruby on Rails and Stimulus , as well as some interaction with React , Typescript , NestJS , and much more.

We're collaborative, not siloed - so even if you're focused on one client, you'll always be part of the wider mmtm team.

What We're Looking For

• Foundation in Ruby on Rails , with an eagerness to learn more.
• Solid grasp of HTML5, CSS3, and SASS .
• Some experience or interest in learning React , NestJS , NodeJS and/or TypeScript .
• UK-based and happy to join us in our Tewkesbury office on Tuesdays.
• A collaborative, positive mindset - someone who thrives in an agile team.
• Enthusiasm for clean code, learning new tools, and a focus on practical solutions.
• Friendly, upbeat attitude, and an ability to keep up with our terrible puns and GIFs.
• Previous agency experience or professional experience as a developer.
• Familiarity with Agile and Sprint methodologies.
• Understanding of Git version control and code reviewing practices.

What You'll Get

• £23k-£30k salary , based on experience, with regular reviews.
• Remote-first culture with hybrid working (just one in-office day per week).
• Shorter 35-hour week , generous holiday allowance (24 days + bank holidays), plus your birthday off as an extra free day
• Annual learning budget for courses, books, or conferences.
• Latest MacBook and any gear you need.
• Career development support: regular check-ins, annual reviews, and space to grow.

How We Hire

We keep things friendly, fast, and human:

• Apply: Send us your CV.
• Intro Chat: 30-minute video call with our founders.
• Tech Interview: A live coding session and technical conversation.
• Offer: If it's a fit on both sides, we'll make an offer right away.

We're open to either full-time employment or an initial 6-12 month contract - just let us know what works best for you.

Ready to Apply?

We'd love to hear from you. Email your CV to us and tell us why this role feels like a good fit.