Senior Software Developer – Trading Systems (Fully Remote, UK)
Location: London (Fully Remote with Optional Hot Desking)
Salary: Up to £100,000 + Benefits
Industry: Trading / FinTech
The Role
We’re seeking a Senior Software Developer to join a small, collaborative team building and maintaining mission-critical trading systems within a modern microservice architecture. You’ll replace a long-standing contractor and work alongside two other developers, a hands-on manager, and dedicated QA support.
This is a highly impactful role offering full autonomy, complex technical challenges, and the ability to work fully remotely.
What You’ll Do
* Develop and maintain trading applications built on microservices.
* Work extensively with queuing, including synchronous and asynchronous communication patterns.
* Contribute to system architecture, threading, and advanced async design.
* Build across C#.NET, .NET Core, REST APIs, RabbitMQ, Azure Service Bus, SQL Server, WPF, and some React.
* Apply strong engineering practices: unit/integration testing, DDD, TDD.
* Collaborate closely within a small team focused on reliability and performance.
What You’ll Bring
* Strong background in microservice architecture and messaging/queuing systems.
* Deep understanding of concurrency, threading, and async design.
* Expertise in C#.NET, .NET Core, and legacy .NET frameworks.
* Experience with RESTful APIs, SQL Server, RabbitMQ, Azure Service Bus, and UI technologies.
* Exposure to Azure or cloud platforms is a plus.
* Experience in critical systems; finance experience beneficial but not essential.
* Collaborative, open-minded, and a good fit for a relaxed, small-team culture.
Why Join?
* Up to £100,000 salary
* Fully remote working with London office access
* Private healthcare
* Cycle-to-work scheme
* Wellness budget
* Electric vehicle scheme
* Up to 30 days' holiday with tenure
* Supportive, friendly, and low-ego engineering culture
If you are interested please email your cv to megan.seymour@stottandmay.com for immediate consideration.