Senior Developer Job Manchester area,England UK,Software Development

Senior Software Engineer – C# / .NET / SQL

We're looking for an experienced Senior Software Engineer to join a growing technology team working on the development and modernisation of a large-scale software platform.

This is a genuinely hands-on engineering role for someone who enjoys solving complex technical problems, cares about clean and maintainable code, and wants to contribute to architectural decisions rather than simply work through a backlog.

You'll work across a modern Microsoft-focused environment, developing new functionality while helping evolve and modernise existing systems.

What you'll be doing

Building and modernising applications using .NET 8+
Writing and optimising SQL Server queries, with a strong focus on performance
Designing solutions across distributed and event-driven architectures
Improving search, data processing and application performance
Helping modernise existing platform components
Working with containerised applications and cloud infrastructure
Contributing to architecture and technical design discussions
Participating in code reviews and helping maintain strong engineering standards
Using AI-assisted development tools to improve engineering productivity and quality
Working collaboratively with other experienced engineers to solve complex problems

What we're looking for

You'll ideally have strong commercial experience with:

C# / .NET
SQL Server
, including query optimisation, indexing, execution plans and performance tuning
Async/await, memory management and resource handling
RESTful/web-based applications
Distributed systems, microservices and/or complex monolithic applications
Clean Code, OOP and common software design patterns
Automated testing and good software engineering practices
Git and modern CI/CD environments

Experience with
Azure would be beneficial.

Exposure to technologies such as Elasticsearch, Event Store, Svelte.js, Pulumi, Neo4j, InfluxDB, Seq or Power BI would also be useful, but isn't essential.

What we're really looking for

This isn't about ticking every technology box.

We're looking for an experienced engineer who:

Enjoys getting into complex technical problems
Has particularly strong C#/.NET and SQL fundamentals
Thinks about performance, scalability and maintainability
Can explain the reasoning behind technical decisions
Enjoys collaborating and sharing ideas with other engineers
Is curious and continually looking to improve
Has a positive attitude towards AI-assisted software engineering
Wants to contribute to how systems are designed, not just how tickets are delivered

Package

Location: Manchester

Hybrid: 2 days per week in the Manchester office

Benefits: Strong overall benefits package alongside opportunities for continued technical development.

If you're an experienced C#/.NET Engineer looking for a role where you'll have the opportunity to work on challenging systems, influence technical decisions and contribute to the ongoing modernisation of a substantial software platform, please get in touch.