Senior Software Engineer (CALC engine)

About the Role

The Senior Software Engineer (CALC engine) is a specialised role working on a complex Java based high-performance OLAP engine. Our engine is a multi-dimensional calculation engine with its own modelling language. The model declaration is dynamically compiled into efficient runtime objects. The successful candidate will be working right in the core of the engine, where correctness and quality are as important as calculation performance.

Responsibilities

• Work closely with the product team to codify design decisions into executable criteria.
• Collaboratively design and implement high-performance, low latency calculation engine code.
• Communicate complex technical concepts clearly and effectively to team members and stakeholders.
• Advocate for correctness-first approaches and foster a culture where quality is paramount.

About You

• Strong experience in backend software development
• Deep expertise in one of the following areas: Strong Core Java skills: threading, allocation & garbage collection, performance tuning. Experience writing low latency Java.
• Strong domain knowledge in database engine / Compiler design / Investment bank Front office
• Experience designing languages.
• Understanding of how the JVM works.
• Experience using AI tools such as Claude Code.

Nice to Have

• Prior experience building planning software
• Likely (but not exclusively) to have worked in one of the following industry: Database engines (not database implementations), Low latency front office investment bank, Compilers
• Basic understanding of Spring.
• Knowledge of Multi dimensional modeling.
• Knowledge of Lambda Architecture