Senior Software Engineer - Corporate Actions & Security Master

About this role

This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for a Senior Software Engineer - Corporate Actions & Security Master based in France.

As a Senior Software Engineer, you will play a key role in building and scaling the foundational data infrastructure behind a global brokerage platform.
You will work across two critical domains: Security Master, which manages essential information about tradable financial assets, and Corporate Actions, which processes events such as dividends, stock splits, and mergers.
Your work will directly support the expansion of financial products, asset classes, and international markets while ensuring data accuracy and operational reliability.
You will design and maintain distributed backend systems, APIs, and data models that power interconnected services across the organisation.
Working in a globally distributed engineering environment, you will collaborate with technical and business teams to solve complex challenges and drive architectural improvements.
This is a hands-on senior engineering opportunity offering significant technical ownership, exposure to financial markets, and the chance to influence critical infrastructure at scale.

### Accountabilities

• Design, develop, and maintain distributed backend services, APIs, and data models supporting Security Master and Corporate Actions platforms.
• Build and improve the central reference data infrastructure that provides accurate information about tradable financial instruments, their characteristics, and trading eligibility.
• Develop reliable corporate action processing systems to ingest third-party data relating to dividends, stock splits, mergers, and other financial events, ensuring accurate calculations and updates to customer and partner holdings.
• Extend existing reference data systems to support new financial instruments, asset classes, and market-specific requirements, including futur...