Principal .NET Engineer
Posted Today by djr
£80 Per hour
Outside
Hybrid
Manchester Area, United Kingdom
Summary: The Principal .NET Engineer role is a contract position focused on designing and delivering scalable backend services within a modern AWS-based platform. This principal-level engineering role combines hands-on engineering with architectural influence and technical leadership. The position involves working on a cloud-native platform and contributing to key technical decisions while addressing scale challenges. The contract is for 12 months, emphasizing long-term strategic initiatives.
Key Responsibilities:
- Designing and building high-performance backend services using C# / .NET
- Driving modern architecture patterns including microservices and event-driven systems
- Helping define technical strategy and backend architecture
- Building and evolving cloud-native services within AWS
- Implementing Infrastructure as Code using Terraform
- Working with DynamoDB and distributed data models
- Collaborating with engineering leadership and product teams to scale the platform
Key Skills:
- Experience with C# / .NET
- Proficiency in AWS and cloud-native architectures
- Knowledge of Infrastructure as Code, specifically Terraform
- Experience with DynamoDB and distributed systems
- Understanding of microservices and event-driven architecture
- Strong technical leadership and architectural influence
Salary (Rate): £80.00/hr
City: Manchester
Country: United Kingdom
Working Arrangements: hybrid
IR35 Status: outside IR35
Seniority Level: Senior
Industry: IT
Principal .NET Engineer - Contract Up to £650/day Outside IR35 Manchester (Hybrid) 12 Months
We’re partnering with a rapidly scaling technology platform that is heavily investing in its next-generation cloud architecture. They are looking for a Principal .NET Engineer to play a key role in designing and delivering highly scalable backend services within a modern AWS-based platform. This is a principal-level engineering role, not just another development position. You will operate at the intersection of hands-on engineering, architecture, and technical leadership, helping shape how core systems evolve as the platform scales.
Why This Contract Is Interesting
- Greenfield & Modern Architecture – Work on a cloud-native platform built around modern microservices and event-driven patterns.
- Architectural Influence – Contribute to key technical decisions and shape backend engineering standards across teams.
- Principal-Level Engineering – Remain hands-on while guiding architectural direction and best practice.
- Scale Challenges – Design services capable of handling high throughput and distributed workloads.
- Long-Term Programme – 12-month engagement on a strategic platform initiative.
What You’ll Be Doing
- Designing and building high-performance backend services using C# / .NET
- Driving modern architecture patterns including microservices and event-driven systems
- Helping define technical strategy and backend architecture
- Building and evolving cloud-native services within AWS
- Implementing Infrastructure as Code using Terraform
- Working with DynamoDB and distributed data models
- Collaborating with engineering leadership and product teams to scale the platform
Technology Environment
- C# / .NET
- AWS
- Terraform (Infrastructure as Code)
- DynamoDB
- Microservices & Event-Driven Architecture
- Distributed Systems
If you’ve built and scaled high-performance backend systems in AWS using .NET, this is a contract where you can have real architectural impact.