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Senior Software Engineer, CalcGraphs - Vice President

United Kingdom, London · Job Posted July 03, 2026
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Job Description

XiP is building a next-generation cross-asset calculation system for Citi trading desks and enterprise users. We are seeking a Senior Engineer to fill the role of 'Applications Development Technology Lead Analyst' on the XiNG large scale distributed calculation platform (XiP). In this role you will design, build, and maintain the calculation engine at the heart of the XiP platform.

Job Responsibility

  • Take part of the shared responsibility for the long-term strategic direction of the XiP Calculation Engine
  • Serve as advisor or coach to team members, allocating and overseeing work
  • Implement changes and improvements to Citi's Risk Calculation Engine
  • Operationally support the optimization of Risk calculations
  • Plan, coordinate, and execute strategic changes to the engine to reach the next scaling milestone
  • Provide specialized customer support to optimize and improve large, distributed calculations

Requirements

  • Multiple years professional software development experience with Java
  • Solid experience with Java frameworks (e.g., Spring, Spring Boot, Quarkus)
  • Experience designing, building, and maintaining large-scale, distributed systems
  • Experience with RESTful API design and implementation
  • Strong understanding of object-oriented programming and design patterns
  • Experience working in Agile/Scrum development environments
  • Practical experience with Python for scripting, automation, or data processing tasks
  • Bachelors or Masters degree in Computer Science, Engineering, or a related field

Nice to have

  • Exposure to NoSQL databases (e.g., MongoDB, Cassandra)
  • Exposure to cloud platforms (e.g., AWS, Azure, GCP) and containerization (e.g., Docker, Kubernetes)
  • Experience with CI/CD pipelines and DevOps practices

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