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Senior Dotnet Developer

Job in Manchester, Greater Manchester, M9, England, UK
Listing for: Lorien
Full Time position
Listed on 2026-10-17
Job specializations:
  • Software Development
    .NET Developer, Backend Developer, SQL Developer
Salary/Wage Range or Industry Benchmark: 65000 - 85000 GBP Yearly GBP 65000.00 85000.00 YEAR
Job Description & How to Apply Below

Job Title:

Senior .Net Developer in Betting and Gambling Firm

Job Type: Perm

Location:

2 Days in a Week in Manchester M2 4JG

This role does not offer sponsorship

A major digital consumer-facing platform in Manchester is hiring a Senior .NET Developer to help improve and evolve a live, business-critical technology estate.

This is not babysitting a legacy estate with no roadmap. The platform is live, commercially important and actively being improved, with a real focus on performance, reliability, scalability and technical quality.

You’ll be working across C#/.NET, Web API, WCF, SQL/No

SQL, caching, messaging, Windows Services and performance optimisation, with a healthy mix of new feature development and improvement work across existing systems.

The role suits someone who enjoys proper backend/platform engineering. Someone who can take ownership of work from development through to production, improve what already exists, and work closely with Lead Developers to raise the quality of how software is built and supported.

What you’ll be doing
  • Building and improving features across C#/.NET applications
  • Working with Web API, WCF, SQL/No

    SQL and backend services
  • Improving performance, reliability and maintainability across live systems
  • Supporting integrations, internal services and platform improvements
  • Working with Lead Developers on standards, design and technical quality
  • Owning developments through testing, release and production support
What they’re looking for
  • Strong commercial experience with C#/.NET
  • Experience with Web API, REST services and WCF
  • Strong database experience across SQL Server, MySQL or No

    SQL
  • Comfortable working with legacy systems, Windows Services or established .NET estates
  • Exposure to caching, messaging, distributed systems or performance tuning
  • Git, Agile/Kanban and a practical delivery mindset
  • Someone who improves systems properly, rather than trying to rewrite everything because they got bored
The honest sell

This is not shiny greenfield fantasy land, and that is exactly why it is interesting.

It is a stable, high-volume platform where the work is about improving systems that already matter commercially. If someone likes .NET, APIs, performance, legacy improvement and production ownership, this is a strong move.

Position Requirements
10+ Years work experience
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