Developer C# / .NET – X ONE Pricing

GBTO provides the most reliable, flexible and efficient Risk & Finance platform and delivers the shared market data repository for our partners in MARK, RISQ & DFIN to: Meet the strategic business needs of GBIS. Meet our regulatory commitments and secure the provision of reports to regulators. Optimize capital requirements. Distribute certified data. Manage and ensure the consistency of the PNL, Market, Liquidity and Credit Risks, and Accounting and Finance for the Bank Contribute to the digital transformation of GBIS. GBTO/PRE/CFI provides Fixed Income market risk calculators to our partners on Rates and FX. X-ONE / Riskone is a key application where pricing curves definition are used to project the risk in the calculators. You will work on highly visible and business‑critical systems that price financial products, distribute real‑time market data, and support trading activities in a demanding environment characterized by performance, low latency, and reliability constraints. This role combines feature development, test framework engineering and L3 support critical to delivering robust, high‑quality pricing and reliable solutions. Your Responsibilities Design and develop pricing features aligned with business and technical roadmaps Participate in modernization initiatives, including .NET to .NET Core transformations Contribute to performance‑critical and low‑latency system components Participating in key strategic projects to support the business and the bank ambition Design, refactor, and optimize automated test frameworks to ensure Functional coverage of pricing feature Improved stability and execution performance Adoption of testing best practices Develop and maintain unit and non‑regression tests Collaborate closely with Traders, Sales, and IT teams across the pricing chain Work on a large‑scale codebase Participating in production activities and application support