Lead Software Engineer - .NET 8 | £600/day Outside IR35 | Manchester (Hybrid/Remote – 2x per week maximum onsite)
We’re looking for a Lead Engineer (Contract) to drive the development of scalable, secure, and high-performance cloud-native applications using .NET 8 and AWS. This is a hands-on leadership role, ideal for someone who thrives in a microservices-driven environment, mentors teams effectively, and brings deep technical expertise across design, architecture, and cloud platforms.
Key Responsibilities
* Lead a development team, ensuring technical excellence and adherence to best practices
* Architect and build cloud-native applications using .NET 8, AWS, Docker, and Terraform
* Design and implement secure authentication and authorisation systems (OAuth, OIDC) using tools such as Okta, Auth0, Passport, or IdentityServer
* Promote and implement CI/CD, TDD, and DevOps methodologies to streamline delivery
* Collaborate closely with architects, product managers, and stakeholders to shape technical strategy
* Solve complex engineering challenges to enhance scalability, resilience, and performance
Technical Stack
Backend: .NET 8, C#, AWS Lambda, ECS Fargate, EKS
Databases: DynamoDB, Aurora, DocumentDB (MongoDB experience a bonus)
Auth/Identity: OAuth, OIDC, Okta, Auth0, Passport, IdentityServer
DevOps & Infrastructure: Terraform, GitHub Actions, Docker
Event Systems: Kafka, AWS MSK, EventBridge, SNS/SQS
Frontend: React
Must Have
* Proven track record of integrating or building authentication and authorisation solutions (OAuth, OIDC)
* Experience with AWS (DynamoDB, ECS Fargate)
* Strong ASP.NET and C# development experience
* Excellent software design skills (design patterns, application design for scalability and resilience)
Good to Have
* Infrastructure as Code experience (Terraform, Ansible, etc.)
* Containerisation knowledge (Docker, Kubernetes)
* Previous software architecture experience
* Familiarity with observability tools (CloudWatch, Sentry, Splunk, New Relic)
This is a fantastic opportunity to take ownership of a high-impact project, lead a skilled engineering team, and shape modern, cloud-first systems using the latest Microsoft and AWS technologies.
Apply now for immediate consideration.