C# Software Engineer Front Office Trading Technology Investment Bank

C# Software Engineer | Front Office Trading Technology | Investment Bank

London-based | £120,000 - £135,000 + bonus + benefits

C# | .NET | Cloud | Trading Systems | DevOps | 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

What You Bring:

• 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 DevOps, CI/CD and automated testing
• Experience modernising or migrating legacy applications to current .NET platformsCloud experience across AWS, GCP or similar enterprise cloud environments

The Package:

• 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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