Senior Software Developer in London

SalamanderSoft builds user identity and account lifecycle management for the education sector. Our software manages 3 million accounts daily across 4,000+ schools, colleges and universities in 34 countries, integrating with Azure, Microsoft 365, Google Workspace and more. When it breaks, schools notice. When it works, they don’t, which means reliability, correctness and security aren’t aspirations, they’re requirements.

We’re hiring a Senior Developer to take real ownership of parts of this platform: designing solutions, leading delivery, and raising the bar for how the team builds software. This is not a seat-warmer role.

How We Work

We’re a mid-sized engineering team who care about how software is built, not just that it ships. We work in an iterative, Agile way: small changes, regular feedback, and a bias towards shipping improvements early rather than late. We do code reviews to spread knowledge and find real mistakes, not to tick a box. We write automated tests because we’ve seen what happens when you don’t. We think carefully about design because maintaining poorly designed code is expensive and demoralising. You’ll be expected to do the same, and to help others do it better. Senior here means you let your work speak for itself and push the team to keep improving, not just that you have the years on a CV.

The Tech Stack

• Backend: C#/.NET, our primary language; the majority of our services live here
• Cloud: Azure (Functions, Storage, and related services)
• Frontend: TypeScript, Vue, PrimeVue
• Testing: Automated testing is standard; TDD experience is valued
• Comms: Remote-first, async-first; written communication matters as much as code
• Delivery: Git-based workflows, CI/CD pipelines, and infrastructure managed as code where it makes sense

What You’ll Do

• Own feature delivery end-to-end: from understanding the problem through to production, including build, deployment, and operational considerations
• Lead and participate in code reviews focused on correctness, clarity, and maintainability
• Mentor and unblock engineers on the team
• Maintain and improve existing .NET solutions by reducing risk, technical debt, improving reliability and expanding features
• Contribute to technical direction on new capabilities, not just implementation
• Set and champion pragmatic engineering standards across the team

What We’re Looking For

• Strong C#/.NET: 5+ years shipping and owning production software in C#
• Real Azure experience: you’ve built and operated services there and you understand the failure modes
• Sound design thinking: you break down ambiguous problems, make sensible trade-offs, and can articulate why
• A quality mindset: automated testing, careful code review, and maintainable design are habits, not aspirations
• Clear written communication: we’re fully remote, so your ability to write clearly matters as much as your ability to code
• Full-stack comfort: you can work across the stack when the job calls for it

Nice to Have

• Vue / PrimeVue experience
• ASP.NET Core experience
• Knowledge of the education sector

What We Offer

• Salary: £45,000–£60,000 depending on experience
• Fully remote: work from anywhere in the UK
• 5 weeks paid holiday plus bank holidays; more holidays added through years of service
• Premium training resources and paid certification attempts
• Annual team meetup and a budget to attend conferences and events each year
• Good hardware and software: we won’t make you fight your tools

How to Apply

Apply via the listing and tell us what caught your eye. We read every application and will get back to you within a few days.

Job Type: Full-time

Work Location: Fully Remote

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