C# Developer - FX Options Pricing - London

C# Developer - FX Options Pricing - London

About the Role
We're looking for a hands-on software engineer to join a globally distributed team building a specialised pricing and structuring tool used by front-office teams. This role focuses on supporting a platform used to model and customise complex financial instruments, primarily in the FX, rates, and inflation markets - particularly those with exotic structures.

About the Team
This group develops a highly interactive desktop system that enables traders and structurers to design, evaluate, and manage advanced financial trade ideas. While the team is globally spread across key financial hubs, the London office plays a critical role in both development and business engagement.

What You'll Be Doing

Evolving and maintaining a mature codebase that supports real-time structuring and pricing workflows

Collaborating closely with quantitative developers and trading desks to ensure the platform meets evolving business needs

Extending application logic and UI components to support custom trade structures and pricing methodologies

Working across the entire trade lifecycle, from input capture to pricing and internal distribution

Participating in regular production support (as part of team rotation), though this is not an on-call role

Technology Environment

Core development is in C# (Framework 4.8)

Uses SQL Server for data interaction

Interfaces with in-house quantitative pricing engines

(Future scope includes potential movement toward cloud-native architecture)

Key Experience & Skills

Proven software engineering background, ideally with experience in C# and large, modular applications

Comfortable working with mature systems where enhancement and refactoring are part of the day-to-day

Exposure to derivatives or structured products is highly beneficial - especially FX Options

Understanding of how pricing models work and experience collaborating with quantitative teams

Confidence to engage directly with trading professionals, gather requirements, and demonstrate completed functionality

Strong sense of ownership and a desire to work on technically and financially sophisticated problems

Nice-to-Have

Familiarity with pricing mechanics in any asset class

Knowledge of derivatives trade structuring and lifecycle

No need for deep async/event-driven programming expertise - the platform is about adaptability and user richness, not low-latency performance

Why Join?
This is a role for engineers who thrive in highly collaborative, domain-rich environments. Instead of working on ultra-low-latency systems, you'll build flexible, customisable tools that help traders shape complex deals. It's ideal for someone who wants to dive deeper into the mechanics of financial products, gain exposure to quantitative pricing logic, and enjoy greater user interaction than typical performance-critical environments allow.