Lead C# Developer | Fixed Income

Role - Lead C# Developer, Fixed Income
Location: London (Hybrid Working)
Duration: 6-months

Rate: Via umbrella

Join one of the most stable and globally respected financial institutions as a Director-level Lead C# Developer within the Front Office Fixed Income technology team. This is a high-impact leadership role at the intersection of trading, architecture, and delivery-perfect for someone who thrives in a hands-on, business-facing environment and can lead end-to-end solutions from strategy to execution.

About the Role

As a senior member of the Fixed Income technology team, you will work closely with the Product Owner, trading desks, and development leads to deliver high-quality, scalable solutions. This role combines deep technical expertise in C#/.Net with leadership in design, architecture, and delivery.

You will represent the team across senior forums, partner with stakeholders globally, and ensure the technology stack remains cutting-edge, secure, and aligned with both business goals and regulatory needs.

Key Responsibilities

• Own the design and delivery of software solutions supporting front-office Fixed Income trading
• Represent IT in strategy, planning, and architecture discussions at senior levels
• Provide technical leadership in C#, .Net Core, and SQL Server within a fast-moving Agile environment
• Contribute to IT strategy for Fixed Income, including integrations with tools like ION Anvil, Neptune, and Mosaic Smart Data
• Collaborate daily with traders and desk heads to translate complex requirements into working technology
• Drive forward best practices in software engineering, including CI/CD and automated testing
• Promote a positive, inclusive, and high-performance team environment

What We''re Looking For

• Expert C#/.Net Core developer with deep backend engineering experience
• Extensive experience in Fixed Income (bonds, swaps, low-touch e-trading platforms)
• Proven ability to work closely with Front Office and senior business stakeholders
• Experience delivering enterprise-grade systems in high-pressure financial environments
• Deep understanding of trading workflows, market risks, and regulatory context
• Skilled in Agile development, CI/CD pipelines, and architecture best practices
• Strong communicator, able to lead both technically and strategically
• Degree in Computer Science or equivalent

Why Join?

This is a unique opportunity to join a global firm with a long-standing reputation for excellence and a commitment to innovation, inclusion, and integrity. You''ll lead delivery of core trading systems that directly support revenue and regulatory goals, while shaping the future of technology across the Fixed Income landscape.

If you''re ready to lead from the front-both technically and strategically-this Director-level role offers real impact, autonomy, and visibility.

Candidates will ideally show evidence of the above in their CV to be considered please click the "apply" button.

Please be advised if you haven''t heard from us within 48 hours then unfortunately your application has not been successful on this occasion, we may however keep your details on file for any suitable future vacancies and contact you accordingly.

Pontoon is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone''s chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive.