Front office C# Developer

Overview

In this VP-level role, you will own and deliver high-performance C#/.NET solutions powering front office trading and securities financing. You will shape technical architecture and drive delivery across a global engineering team in London, with close collaboration to NY and Asia. You will modernise legacy applications and build cloud-based platforms using a modern stack. You’ll apply distributed systems principles and guide best practices, while leveraging AI-assisted development tools to boost productivity. This role offers impact on trading technology and a path to technical leadership within a global bank.

Responsibilities

• Design, develop and enhance high-performance C#/.NET applications supporting front office trading and securities financing activities.
• Take technical ownership of projects from initial requirements and architectural design through development, deployment and production.
• Contribute to the modernisation of existing applications and the development of strategic cloud-based platforms.
• Design scalable, maintainable solutions using modern software engineering principles and distributed technologies.
• Work collaboratively with engineering teams and business stakeholders across London, New York and Asia.
• Evaluate technical approaches, make architectural decisions and drive engineering best practices.
• Leverage AI-assisted development tools to improve engineering productivity, code quality and delivery efficiency.

Key requirements

• Strong commercial software engineering experience using C# and .NET, with excellent programming fundamentals.
• Proven experience designing and delivering complex enterprise applications within investment banking or capital markets.
• Knowledge of Securities Lending, Stock Loan, Securities Financing, Equity Financing or Equity Swaps.
• Demonstrable experience taking ownership of technical architecture and delivering substantial projects independently.
• Strong understanding of object-oriented design, data structures, algorithms and software engineering principles.
• Experience working with relational databases such as SQL Server or MySQL.
• Ability to articulate architectural decisions, evaluate technical trade-offs and solve complex engineering challenges.

• proactive ownership
• cross-functional collaboration
• strong problem-solving
• C# and .NET/.NET Core
• AWS or another major cloud platform
• Java development experience alongside C#

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