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Senior Software Engineer (.NET / AWS / DOCKER)

Leeds, UK
C# / .Net Developer DevOps Engineer Full Stack C# / .Net Developer Cloud Engineer
Actively hiring

Senior Software Engineer (.NET / AWS / DOCKER)

Cox Automotive
Leeds, UK
C# / .Net Developer DevOps Engineer Full Stack C# / .Net Developer Cloud Engineer
Cox Automotive
Actively hiring

hackajob is partnering with Cox Automotive to fill this position. Create a profile to be automatically considered for this role—and others that match your experience.

 

Senior Software Engineer (.NET / AWS / DOCKER)

📍 Leeds, Manchester or Bruntingthorpe (Hybrid X2 A Week)

Help Transform a Business Processing 200,000+ Vehicles Every Year

Manheim Vehicle Services (MVS), part of Cox Automotive Europe, is on an ambitious engineering transformation journey.

We're modernising a large-scale legacy .NET platform into a cloud-native ecosystem built on AWS, modern .NET, event-driven architecture and AI-enabled engineering practices. Our systems support one of the UK's largest vehicle preparation and storage operations, processing more than 200,000 vehicles annually for manufacturers, finance providers and rental businesses.

As a Senior Software Engineer, you'll play a key role in shaping the future of our technology platform while helping define how modern software engineering and AI-assisted development are applied across the business. 

What You'll Be Doing

You'll work within a collaborative engineering team to:

  • Design, build and deploy scalable applications using modern .NET technologies.
  • Help migrate a legacy .NET Framework monolith into AWS-native services and microservices.
  • Develop robust APIs and event-driven solutions.
  • Contribute to architectural discussions and technical decision-making.
  • Champion engineering excellence through automated testing, CI/CD and modern development practices.
  • Leverage AI-assisted development tools to improve delivery speed, quality and consistency.
  • Take ownership from design through to production support and continuous improvement. 

Our Technology Stack

You'll have the opportunity to work with:

AWS ¦ .NET ¦ Docker ¦ ECS ¦ Lambda ¦ Terraform ¦ SQL Server ¦ PostgreSQL ¦ DynamoDB ¦ SNS/SQS ¦ EventBridge ¦ GitHub Actions ¦ React ¦ New Relic

What We're Looking For

We're keen to speak with engineers who have:

✅ Strong commercial experience with .NET / .NET Core & Docker

✅ Experience building applications in cloud environments (AWS preferred)

✅ Knowledge of Infrastructure as Code (Terraform or similar)

✅ A passion for clean code, testing and engineering best practice

✅ Experience with APIs, distributed systems and event-driven architectures

✅ An understanding of CI/CD, Agile delivery, BDD and/or TDD

✅ The ability to balance technical quality with pragmatic delivery outcomes [

Why Join Us?

This is more than another Senior Developer role.

You'll be joining a team at a pivotal moment, helping modernise a business-critical platform while influencing engineering practices, cloud adoption and the use of AI within software delivery. You'll work on meaningful challenges, collaborate with talented engineers and have a genuine opportunity to shape the future direction of our technology landscape.

If you're excited by cloud transformation, modern software engineering and solving complex real-world problems at scale, we'd love to hear from you. 🚀

hackajob is partnering with Cox Automotive to fill this position. Create a profile to be automatically considered for this role—and others that match your experience.

 

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