Junior Full Stack Developer (.NET / React)

Step Into a High-Impact Developer Role with a Thriving, Innovative Business

Steelx is looking for a capable and passionate Junior Full Stack Developer

to join our efforts in the next evolution of our engineering and business platforms. Be part of our small, nimble team, owning a diverse range of projects, from our cutting-edge 3D app and comprehensive engineering backend to a mature supportive business platform that handles CRM and automates interactions with our supplier partners.

And here’s the kicker:

we work a full-time week of four days most weeks!

Enjoy a genuine long weekend—most weekends—while doing work that matters.

What You’ll Do

Contribute to features from design through to production

Write clean, maintainable code with well-scoped unit tests

Fix bugs, and handle support issues across teams

Collaborate directly with product, engineering, and business teams to shape requirements

Use AI-assisted dev tools and modern workflows to accelerate delivery

What You’ll Bring

A relevant degree such as in Computer Science or Software Engineering (graduates encouraged to apply)

Demonstrable skills with

C# / .NET

and

React.js

(by existing industry experience, or a sample of work that you can share with your application)

Excellent communication and teamwork skills, with a readiness to contribute ideas

Interest in emerging agentic coding tools, but not reliant on them

Our Stack Includes

C# / .NET

JavaScript, React, Typescript

Primarily MySQL databases

AWS hosting and Azure-driven development

Why Join Steelx?

We’re an independent, family-owned company in the Steel Building industry, with over 20 years of success and a growing international footprint. Our culture is grounded in innovation, trust, and balance.

4-day work week – talk to us about how this works!

The role is in-office only, promoting a close-knit, high-performing team

Career progression and technical ownership

Opportunity to learn new skills as the software industry evolves

Mentoring from developers of 3+, 5+, 10+, even 15+ years’ experience

A business that genuinely values its people

Ready to Make Your Mark?

This is no typical graduate program. It’s your chance to shape real products used by real people—at scale—and help us redefine an entire industry. Join us and develop your full potential.

Applicants should include a link to a GitHub repository, personal project or code sample. We review submitted code as part of the screening process.