Senior.NET Migration Engineer (Cloud Modernization)

Senior.NET Migration Engineer (Cloud Modernization)

Full-Time 60000 - 80000 Β£ / year (est.) No working from home possible
Randstad Technologies

At a Glance

  • Tasks: Lead migration of Back End services to AWS K8s and design shared libraries.
  • Company: Join a forward-thinking team focused on modernising their Back End estate.
  • Benefits: Enjoy a hybrid work model in London with opportunities for innovation.
  • Other info: Work with AI coding agents for automated refactoring.
  • Why this job: Be at the forefront of cloud modernization using cutting-edge technologies.
  • Qualifications: Requires 8+ years of C# experience and strong AWS and Terraform skills.

The predicted salary is between 60000 - 80000 Β£ per year.

Permanent | London (Hybrid) | Tech: .NET 10, Kubernetes, AWS, Terraform, AI Agents

The Mission

Forget standard "lift-and-shift." We are completely modernizing our Back End estate, moving from a Legacy London Datacentre straight into AWS and Kubernetes using .NET 10 as our target runtime. You will build the "golden paths," shared templates, and automated pipelines to migrate applications at scale. Best of all? You will be pairing traditional automation with AI coding agents (like Claude Code) to drive massive, automated refactoring.

What You'll Do

  • Lead the application-layer migration of Back End services to AWS K8s.
  • Design shared libraries and service templates to ensure architectural consistency.
  • Build migration pipelines combining Terraform, CI/CD, and agentic AI tools.
  • Partner with the Platform team on observability, networking, and security.

What You Need

Mandatory: Deep C# experience (8+ years) across .NET Core and Legacy .NET Framework, plus production Kubernetes experience. Cloud IaC: Strong AWS and Terraform skills.

Senior.NET Migration Engineer (Cloud Modernization) employer: Randstad Technologies

This London-based company is transforming its infrastructure by moving from a legacy datacentre to AWS. Employees benefit from a hybrid work environment and the chance to work with innovative technologies like AI coding agents. The team is dedicated to architectural consistency and modernisation.

Randstad Technologies

Contact Details:

Randstad Technologies Recruitment Team

We think you need these skills to ace Senior.NET Migration Engineer (Cloud Modernization)

C#
.NET Core
Legacy .NET Framework
Kubernetes
AWS
Terraform
CI/CD