Counterparty Credit Risk Python Developer

Salary: £62,000 - 102,000 per year

Requirements:

• Programming experience in Python, including systems analysis and software application development.
• Proficiency with UNIX shell scripting (e.g., bash, ksh) and version control software like Git.
• Experience with CI/CD pipeline technologies, such as Jenkins.
• Outstanding analytical and problem-solving skills with a thorough and detailed approach to accuracy.
• Experience in AWS cloud is a plus.
• Excellent verbal and written communication skills in English.
• Ability to collaborate effectively within a large team of developers.
• Capacity to work under pressure, manage deadlines, and take ownership of tasks.
• Masters degree or equivalent in computer science, mathematics, engineering, or physics.

Responsibilities:

• Develop and maintain Counterparty Credit Risk applications.
• Enhance and support CI/CD processes, including build, testing, and release management.
• Optimize codebase performance and facilitate the transition to cloud-based workflows.
• Expand and execute test suites (unit, regression, integration) and conduct performance/memory profiling.
• Create and maintain comprehensive documentation for applications and processes.
• Collaborate with Quant and Technology teams to integrate model updates and new technologies.
• Analyze complex issues and provide evaluative judgments on business and system processes.
• Serve as a Subject Matter Expert (SME) for senior stakeholders and team members, exercising independent judgment.

Technologies:

• AWS
• Bash
• CI/CD
• Cloud
• Git
• Support
• Jenkins
• Network
• Python
• Quant
• Unix

More:

We are Citi, and our Counterparty Credit Risk Analytics group sits within Citi Financial Risk Technology. We develop the applications used for derivatives credit risk and Basel capital calculations firm-wide. This is an intermediate-level role with opportunities to work on advanced technology paradigms such as high-performance grid computing, and to collaborate across our broader internal network, including Front Office Technology, Risk and Quant groups. The role also offers exposure to high-performance computing and cloud, and is based in London, England, United Kingdom.

last updated 36 week of 2026