Net Developer

Randstad Technologies Recruitment; City Of London; Hybrid; GBP 90,000 - 110,000; Full time

Job summary

Randstad Technologies Recruitment in London is seeking a Senior .NET Developer to join a hybrid team. You will help build a brand-new greenfield electronic trading platform for Fixed Income, driving architecture, system design and delivery on AWS with microservices.

You will lead design, ensure scalable C# code, create RESTful APIs, and maintain test coverage with NUnit/Moq and automated CI/CD pipelines. The role requires collaboration with partner tech teams to optimize platform performance,

Qualifications

• Lead technical design, architecture, and high-quality C# code delivery.
• Build scalable, real-time microservices and RESTful Web APIs.
• Maintain high test coverage (NUnit/Moq) and automated CI/CD pipelines.
• Collaborate with partner tech teams to scale platform performance.

Responsibilities

• Lead technical design, architecture, and high-quality C# code delivery.
• Build scalable, real-time microservices and RESTful Web APIs.
• Maintain high test coverage (NUnit/Moq) and automated CI/CD pipelines.
• Collaborate with partner tech teams to scale platform performance.

Skills

C# / .NET Core

Web APIs

RabbitMQ / Messaging

Multithreading / Async

Tools

AWS (EC2)

Docker

Git / TeamCity

Job description

Senior .NET Developer

Location: London (Hybrid - 3 Days Office)

Type: Permanent

The Role

Join a high-performing team to build a brand-new, greenfield electronic trading platform for Fixed Income. You will drive technical architecture, system design, and delivery using modern AWS cloud infrastructure and microservice design.

Key Responsibilities

• Lead technical design, architecture, and high-quality C# code delivery.
• Build scalable, real-time microservices and RESTful Web APIs.
• Maintain high test coverage (NUnit/Moq) and automated CI/CD pipelines.
• Collaborate with partner tech teams to scale platform performance.

Required Skills

• Core Tech: Strong C#, ASP.NET / .NET Core, Web APIs.
• Messaging: Hands-on experience with RabbitMQ (or TIBCO/SignalR).
• Cloud & Tools: AWS (EC2), Docker, Git/TeamCity.
• Concepts: Multithreading, async programming, SQL/NoSQL, automated testing.

Nice-to-Haves

• Fixed Income or electronic trading domain knowledge.
• Exposure to JavaScript frameworks (React/Angular) or broader AWS services.