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Principal Recruitment Consultant Building Dev teams across the UK - MRJ Recruitment
Senior .NET Developer — Build Fast. Solve Problems. See the Impact.
Manchester | Hybrid (2 days a week onsite) | UK Only
If you like your days predictable, this isn’t it.
This team thrives on pace, they’re scaling fast, solving real-time challenges daily, and pushing their platform forward with no sign of slowing down. Priorities shift, problems pop up, and new ideas get built, tested, and shipped at speed.
They need a .NET Developer who enjoys jumping in, figuring things out, and making sure things just work, whether that’s connecting critical systems, optimising performance on the fly, or helping roll out new features that matter to millions.
What you’ll be doing:
* Develop and integrate modern web interfaces with backend services and external systems.
* Work closely with fellow developers and QA to apply robust software design principles, best practices, and proven architectural patterns.
* Build new features and enhancements, producing clean, maintainable, and reusable code.
* Take full ownership of your work from development through to production deployment and provide ongoing support post-launch.
* Partner with the platform engineering team to help build and refine a genuine CI/CD pipeline.
* Write code that’s thoroughly testable, covering unit, integration, UI, and performance scenarios where needed.
Tech you’ll get your hands on:
* .NET Core & C#, the bedrock of what they build.
* SQL & NoSQL databases, the right tool for the job.
* WebAPI, WCF, messaging services, for seamless connections across systems.
* A healthy mix of modern cloud tools and proven legacy tech that still keeps the wheels turning, WinForms, WPF, Microsoft Orleans.
What makes you a fit:
* Strong .NET development experience and confidence with C#.
* You’re solid on design patterns, OOP, and building reliable APIs.
* You can juggle priorities, adapt quickly, and stay calm when things move fast.
* You’re hands-on with version control (Git) and best practices.
* You’re collaborative and open-minded, ready to chip in wherever needed.
* Real ownership, you’ll see the direct impact of your code every day.
* A work culture built on trust, speed, and collaboration.
* No stale bureaucracy, just a team that gets things done, learns fast, and solves problems in real time.
If you want a role where no two days are the same, and you love the buzz of solving problems at pace, hit apply. We’ll guide you every step of the way.
Apply now and let’s talk!
Seniority level
* Seniority level
Not Applicable
Employment type
* Employment type
Full-time
Job function
* Job function
Engineering and Information Technology
* Industries
IT Services and IT Consulting and IT System Custom Software Development
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