Principal Software Engineer

Job description

Principal Software Engineer (Back End)

Hybrid working – 3 days in office

Do you love designing scalable back-end systems and mentoring talented engineers? Want to shape the technical direction of a growing team while building cloud-native platforms using C#/.NET and AWS?

As our Principal Software Engineer, you’ll:

• Lead critical technical decisions and promote engineering excellence across teams.
• Design and build scalable, secure back-end services using C#/.NET, following SOLID principles and clean architecture patterns.
• Architect cloud-native solutions on AWS, leveraging services such as Lambda, ECS/EKS, API Gateway, SQS/SNS, DynamoDB, RDS, and S3.
• Own the full software lifecycle—from system design and implementation to deployment, monitoring, and optimisation in production.
• Drive reliability, performance, and security using CloudWatch, X-Ray, IAM, and well-architected best practices.
• Mentor engineers, raise the bar on code quality, and influence the technical and product roadmap.

We’re looking for someone with:

• Deep expertise in C#/.NET and building distributed, cloud-native systems on AWS.
• Strong experience with microservices, event-driven architectures, and RESTful APIs.
• Hands-on knowledge of CI/CD pipelines (e.g. GitHub Actions, Azure DevOps, or similar).
• Experience with infrastructure as code using CloudFormation, CDK, or Terraform.
• A passion for SOLID design principles, clean code, mentoring, and continuous improvement.

Join a friendly, agile, and innovative team where your technical leadership makes a real impact—and your growth never stops.

Think big. Build resilient systems. Lead by example. Apply today!

Extra information

Status

Open

Education Level

Secondary School

Location

Manchester Area

Type of Contract

Full-time jobs

Published at

09-02-2026

Full UK/EU driving license preferred

No

Car Preferred

No

Must be eligible to work in the EU

No

Cover Letter Required

No

Languages

English