Senior .NET Developer

Lorien; Manchester; Hybrid; GBP 55,000 - 65,000; Full time

Job summary

A leading technology solutions provider is seeking a Senior .NET Developer for a hybrid role in Manchester. You will contribute to building scalable systems and work with modern microservices architecture. The ideal candidate has strong experience in C#, .NET Core, and both SQL and NoSQL databases. This position offers a salary of up to £65,000 plus bonuses, emphasizing team collaboration and technical leadership.

Qualifications

• Experience working on large commercial systems.
• Strong skills in C#, .NET Core, and Web APIs.
• Database experience with SQL and NoSQL.
• Performance tuning and optimization expertise.

Responsibilities

• Advocating TDD and solid development practices.
• Providing technical leadership and peer development.
• Designing, building, and maintaining scalable software applications.
• Writing clean, efficient, and maintainable code.
• Debugging and resolving complex technical issues.

Skills

C#

.NET Core

Web APIs

Performance tuning

Database (SQL and NoSQL)

Tools

Docker

Kubernetes

Job description

Senior .NET Developer - Manchester (Hybrid)

Join high-performing development teams of 250+ building Real Time, large-scale systems used by millions of users across the UK, North America and South Africa. This is a chance to work on business-critical software that directly drives user engagement and revenue.

• Hybrid role based in Manchester city centre (2 days per week onsite)
• Salary: up to £65,000 + bonus

About the Role:

The company is transitioning from monolithic architecture to microservices, with full application rebuilds and containerised deployments. As decisions get made at team level, you will have a say in the tech stack and development approach, with a strong emphasis on team collaboration.

This is a stimulating environment where systems must operate in Real Time, requiring robust event-driven architectures, streaming data pipelines, and reactive programming. You'll tackle complex scalability challenges across distributed systems, ensuring speed and reliability under heavy user loads.

Security and compliance are central to the platform, so you'll be involved in building secure systems with strong authentication, encryption, and adherence to regulatory standards.

What You'll Get to Work With:

• Modern microservices architecture powering high-volume systems
• Containerisation using Docker and Kubernetes for scalable deployments
• Cloud-native platforms and automated CI/CD pipelines
• Real Time performance engineering and distributed computing challenges
• Secure development practices with a focus on system architecture and compliance

Key Responsibilities:

• Advocating TDD and solid development practices
• Providing technical leadership and peer development
• Peer code reviews and effort estimations
• Designing, building, and maintaining scalable software applications
• Writing clean, efficient, and maintainable code
• Debugging and resolving complex technical issues
• Collaborate with end-users to gather requirements and provide support

What You'll Need:

• Experience working on large commercial systems
• Strong skills in C#, .NET Core, and Web APIs
• Database experience, working with both SQL and NoSQL
• Performance tuning and optimisation expertise

Contact Philip Boltt at Lorien Global for more information.