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Senior Software Engineer

Job in Manchester, Greater Manchester, M9, England, UK
Listing for: MRJ Recruitment
Full Time position
Listed on 2026-01-13
Job specializations:
  • Software Development
    Senior Developer, Software Engineer, Full Stack Developer, Cloud Engineer - Software
Job Description & How to Apply Below

Senior Backend Developer

We aren’t just building an app; we are building a global gateway. Our platform is currently utilized by over 5 million users worldwide, and with our user base growing by 250,000 every single month, the stakes have never been higher.

To sustain this trajectory, we need a senior backend developer to join our award-winning team who is obsessed with stability, scalability, and technical excellence. You will join the core engineering team responsible for the heavy lifting, ensuring our services are performant, our data is secure, and our architecture is ready for the next 10 million users.

What You’ll Do
  • Engineered for Scale
    :
    Design and develop high-throughput, low-latency backend services using .NET Core / .NET 8.
  • Cloud Architecture
    :
    Optimize and manage our Azure environment (App Services, Functions, Service Bus, Cosmos

    DB) to ensure 99.9% availability for a global user base.
  • Test-Driven Excellence
    :
    Lead the way in TDD practices. You believe in writing tests before code to ensure our rapid deployment cycles never compromise on quality.
  • Legacy to Leading-Edge
    :
    Help migrate existing services into a modern microservices architecture while maintaining the integrity of our global live environment.
  • Collaborative Leadership
    :
    Mentor junior and mid-weight developers, promoting clean code principles, SOLID design, and a proactive approach to technical debt.
The person we’re looking for

Are you a senior engineer tired of slow release cycles and eager to use the latest AI tools to build something meaningful?

  • .NET Core Mastery
    :
    Extensive experience building complex, distributed systems using C# and .NET Core.
  • Azure Expertise
    :
    Deep familiarity with the Azure cloud platform and how to leverage its services to build scalable, cloud-native applications.
  • TDD Evangelist
    : A “test-first” mindset and proven track record of maintaining high code coverage and quality through automated testing.
  • Performance Mindset
    :
    Ability to profile code, optimize database queries, and manage distributed state across global regions.
  • Product-Led Spirit
    :
    Care about the business impact of your code. You want to understand why a feature is needed and how it benefits our 5m+ users.
Next steps

If you are a Senior Backend Developer who believes that great software starts with great tests and ends with a seamless user experience, we’d love to meet you.

Seniority level
  • Mid-Senior level
Employment type
  • Full-time
Job function
  • Information Technology
Industries
  • Technology, Information and Media
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Position Requirements
10+ Years work experience
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