C# Software Engineer Front Office Trading Technology Investment Bank
Job in
Greater London, London, Greater London, W1B, England, UK
Listed on 2026-10-09
Listing for:
eFinancialCareers
Full Time
position Listed on 2026-10-09
Job specializations:
-
Software Development
Backend Developer, Cloud Engineer - Software, .NET Developer, DevOps
Job Description & How to Apply Below
C# Software Engineer | Front Office Trading Technology | Investment Bank
London-based | £120,000 - £135,000 + bonus + benefits
C# | .NET | Cloud | Trading Systems | Dev Ops | API Development
The Role:A major financial services organisation is looking for a Software Engineer to help modernise and enhance a business-critical trading platform used by front office teams.
This is a hands-on engineering role with genuine influence over technology direction, offering the opportunity to work on large-scale platform transformation, modern engineering practices, and cloud adoption within a fast-moving environment.
What You Will Be Doing:- Deliver enhancements and new capability across a high-impact trading technology platform
- Design and build scalable applications, services and APIs using modern .NET technologies
- Contribute to architectural decisions and longer-term technology strategy
- Drive improvements around automation, resilience, performance and operational efficiency
- Partner closely with engineering and business stakeholders to translate requirements into practical solutions
- Support the migration of legacy applications towards modern cloud-native architectures
- Strong software engineering capability across C# and .NET
- Experience working with relational databases such as Oracle, SQL Server or PostgreSQL
- Knowledge of API design and distributed application development
- Exposure to modern engineering practices including Dev Ops, CI/CD and automated testing
- Experience modernising or migrating legacy applications to current .NET platforms
Cloud experience across AWS, GCP or similar enterprise cloud environments
- Competitive base salary in the region of £120,000 - £135,000
- Performance-related bonus
- Comprehensive benefits package
- Hybrid working model
- Opportunity to influence the evolution of a strategically important trading technology estate
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