We’re working with a leading financial services organisation looking for a Senior C#/.NET Engineer to join a front-office technology team supporting FX Options and Fixed Income.

This is a hands-on role working closely with traders, supporting and enhancing an existing business-critical trading application. The environment is fast-paced and stakeholder-heavy, so they need someone technically robust, pragmatic and comfortable operating directly with front-office users.

What you’ll be doing
Supporting and enhancing an existing C#/.NET trading application
Working closely with FX Options traders and business stakeholders
Delivering new features and production fixes
Supporting the application through an ongoing transition/decommissioning programme
Troubleshooting issues in a rapid-paced front-office environment
Contributing across the full SDLC
Using AI-assisted development tools, including Claude, as part of day-to-day engineering





What we’re looking for
Strong commercial C#/.NET experience
Solid WPF experience
Experience supporting or enhancing existing desktop applications
Front-office, trading, markets, risk or investment banking experience
Strong stakeholder management skills
Comfortable working directly with demanding business users/traders
Strong debugging and production support capability
Git/GitHub and modern development practices
Experience with AI-assisted development tools desirable

The chance
12-month contract
Up to $1,000/day + super
Sydney-based - Hybrid
Option to renew for another 12 months
Direct exposure to front-office trading teams
High-profile financial markets environment

Please apply now or call Matt Kirk on 04•••••004.

📌 Senior C# Engineer Front Office Sydney
🏢 Lanson Partners
📍 Sydney