Ascendion
Net Developer
Job Description
Salary: £35,000 - 60,000 per year
Requirements:- Very deep understanding of .Net/.Net Core and solid understanding of OO principles.
- Experience in ASP.NET Core Web API and RESTful API techniques.
- Solid understanding of and experience with multi-threading and asynchronous programming.
- Familiarity with SQL and NoSQL databases.
- Hands-on experience with containerisation solutions like Docker.
- Experience designing and building API-based service-oriented or microservice architectures.
- Diligence with automated testing, such as NUnit, Moq, Cucumber, etc.
- Strong experience with middleware messaging services like RabbitMQ, TIBCO, SignalR, etc.
- Solid experience with continuous integration and continuous delivery tools like Git, TeamCity, etc.
- Agile development/software life cycle experience.
- Fixed income product knowledge is nice to have.
- Experience configuring continuous integration and continuous delivery tools is nice to have.
- Awareness of or understanding of one or more JavaScript single-page application frameworks is nice to have.
- Experience using the AWS platform is nice to have.
- Take responsibility for software delivery by ensuring quality and scope expectations are met.
- Contribute to and take ownership of the technical design and ensure all aspects of the system architecture are well documented.
- Work closely with partner technology teams and collaborate effectively.
- Ensure the team delivers high-quality software using industry best practices for code management, testing, and CI/CD.
- Help build a new greenfield solution as part of a small team to improve our electronic trading capabilities within the fixed income space.
- API
- ASP.NET
- AWS
- CI/CD
- Cucumber
- Docker
- Git
- JavaScript
- NoSQL
- RabbitMQ
- SQL
- SignalR
- TIBCO
- Teamcity
- Web
- Cloud
More:
We are offering an exciting opportunity for a Senior .Net Developer in London, UK, with a hybrid working model requiring 2 to 3 days per week in the office. We are building a new greenfield solution on AWS, using services across the AWS ecosystem, as part of a small team focused on improving our electronic trading capabilities within the fixed income space. This role is centered on delivering high-quality software and working collaboratively with partner technology teams.
last updated 39 week of 2026
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About Ascendion
Ascendion
London
IT
Skills & Technologies
Inferred from job description
Salary Insight
£47,500
This role
£55,000
UK median
This salary is 14% below the UK median for Developers (£55,000/yr).
Based on 2024–2025 UK technology sector benchmarks