Senior Distributed Systems Engineer – Risk Calc Engine

11037 Citibank, N.A. United Kingdom; Greater London; On-site; GBP 125,000 - 150,000; Full time

Job summary

A major financial institution in London is seeking a Senior Engineer to lead the development of their calculation engine. This role involves designing high-performance systems that manage billions of risk calculations daily. The ideal candidate will have extensive experience in Java, distributed systems, and API design, along with a strong educational background in computer science or engineering. Opportunities for mentoring and strategic project responsibilities are included, supporting a collaborative and innovative working environment.

Qualifications

• Multiple years of professional software development experience with Java.
• Solid experience with Java frameworks (Spring, Spring Boot, Quarkus).
• Experience designing and maintaining large-scale, distributed systems.
• Experience with RESTful API design and implementation.
• Strong understanding of object-oriented programming and design patterns.
• Exposure to NoSQL databases (MongoDB, Cassandra) is a plus.
• Exposure to cloud platforms (AWS, Azure, GCP) and containerization (Docker, Kubernetes) is desirable.
• Experience with unit testing, integration testing, and test automation frameworks (JUnit, Mockito).
• Experience in Agile / Scrum development environments.
• Practical experience with Python for scripting, automation, or data processing tasks.
• Experience with CI / CD pipelines and DevOps practices is a plus.

Responsibilities

• Design, build, and maintain the XiP calculation engine.
• Develop future versions of the calculation engine to enhance performance.
• Mentor and guide mid-level developers, providing technical advice.
• Implement changes to Citi's Risk Calculation Engine to improve efficiency.
• Monitor distributed execution of large-scale risk calculations.
• Develop strategic initiatives aimed at scaling the Risk Calculation Engine.

Skills

Java

Spring

Spring Boot

RESTful API design

Object-oriented programming

NoSQL databases

Cloud platforms

Docker

Kubernetes

Python

Agile/Scrum

CI/CD pipelines

Education

Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field

Job description

A major financial institution in London is seeking a Senior Engineer to lead the development of their calculation engine. This role involves designing high-performance systems that manage billions of risk calculations daily. The ideal candidate will have extensive experience in Java, distributed systems, and API design, along with a strong educational background in computer science or engineering. Opportunities for mentoring and strategic project responsibilities are included, supporting a collaborative and innovative working environment.