Skills

C# SQL NoSQL CI/CD DevOps Docker Kubernetes Architecture Autonomy SQL Server Azure AWS .NET GCP CI/CD Pipelines Kafka Terraform Microservices

Job Specifications

Senior C# Software Engineer (Contract)

Location: London (Hybrid)

Rate: £500 per day

IR35 Status: Outside IR35

Duration: 6 Months (Initial)

The Opportunity

Join a high-performing engineering team within a London-based powerhouse that is currently dominating its sector. This company has moved past the "startup" phase into a period of sophisticated, sustainable growth, and they are now maturing their global platform to be truly cloud-agnostic.

This role is perfect for a Senior Engineer who thrives on architectural variety. You won’t just be maintaining a single environment; you will be building high-throughput systems that leverage the best features across AWS, Azure, and GCP.

The Role

As a Senior C# Engineer, you will lead the development of mission-critical services that form the backbone of a rapidly scaling infrastructure. Your focus will be:

Backend Development: Writing clean, testable, and high-performance code using the latest versions of .NET / C#.
Cloud Strategy: Designing and implementing services across a multi-cloud environment, ensuring seamless integration and high availability.
Architecture: Moving beyond simple CRUD apps to build complex, event-driven microservices and distributed systems.
Engineering Excellence: Mentoring mid-level developers and driving the adoption of modern practices like TDD, Domain-Driven Design (DDD), and automated CI/CD pipelines.
Scalability: Identifying bottlenecks in existing services and re-engineering them to handle massive surges in global traffic.

Your Tech Stack

Core: Expert-level C# and .NET 6/8+.
Cloud: Hands-on experience with at least two major providers (AWS, Azure, or GCP).
Data & Messaging: Experience with SQL Server, NoSQL, and message brokers like RabbitMQ or Kafka.
DevOps: Proficiency with Docker, Kubernetes, and Terraform in a multi-cloud context.

What We’re Looking For

A seasoned engineer who views languages and clouds as tools, not identities.
Deep understanding of Microservices architecture and how to manage state and consistency across distributed clouds.
Experience working in a fast-paced, "scale-up" environment where code quality and delivery speed are balanced.
A proactive problem-solver who can navigate the complexities of an Outside IR35 contract with professional autonomy.

About the Company

Retelligence is an AI / Data led recruitment business that implements the most modern AI tools into each stage of its process. This allows us to create an efficient process for our clients and in turn, help them to reduce their time to hire. Through AI-driven automation, we streamline administrative tasks, allowing our team to focus more on strategic and personalized interactions. Know more