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Salary
$67k – $186k per year (Estimated)
Location
Remote/Hybrid (London, United Kingdom)
Seniority
Senior
Employment
Full-Time
Overview
Company
Impact
Profile match
Citi is one of the largest banks in the world, tracing its lineage to the City Bank of New York founded in 1812 and taking its modern shape through the 1998 merger that created Citigroup. Its most distinctive asset is a cross-border payments and treasury network unmatched by any competitor, moving trillions of dollars a day for multinational corporations, governments and other banks across roughly ninety countries. Alongside that institutional franchise it runs markets and investment banking, wealth management and a United States personal bank, and has spent recent years simplifying itself by exiting consumer operations across Asia, Europe and Latin America.

We are seeking a senior Python Developerwithin Risk Technologyto join a multi-year strategic initiative: the design and delivery of AI-enabled automation across the end-to-end quantitative model lifecycle, covering all market risk and credit risk models.

This is a hands-on engineering role at the core of the program. You will design and build the tooling and services that power AI-assisted model documentation, automated model testing and validation workflows, large-scale risk data analysis, and model lifecycle management. You will work closely with quantitative analysts, model validators, data engineers, and the program leadership to translate workflow automation requirements into robust, production-grade solutions.

Key Responsibilities

Engineering & Delivery

  • Design, develop, and maintain Python-based services, pipelines, and tools supporting automation of the quantitative model lifecycle across market risk and credit risk model families.
  • Build and operate automated testing and validation frameworksfor quantitative models, including test orchestration, result capture, benchmarking, and reporting.
  • Develop data analysis and reconciliation toolingover large-scale risk datasets, ensuring data quality, lineage, and traceability across risk platforms.
  • Contribute to model lifecycle management tooling: model inventory, workflow orchestration, approvals, periodic reviews, and audit-ready evidence generation.

AI Enablement

  • Implement AI/ML components within the model workflow, including LLM-based automationfor model documentation generation and updating, intelligent data quality checks, and workflow assistance.
  • Integrate AI tooling into a controlled, auditable, production-grade environment, with appropriate testing, monitoring, and governance controls.
  • Stay current with developments in applied AI/ML and evaluate their applicability to risk technology use cases.

Collaboration & Standards

  • Work within a cross-functional agile team alongside quants, validators, data engineers, and program management.
  • Promote engineering best practices: code quality, testing, CI/CD, documentation, and secure, scalable design.
  • Mentor junior developers and contribute to technical design reviews.

Required Qualifications

  • STEM degree(Computer Science, Engineering, Mathematics, Statistics, Physics, or related); Master's degree preferred.
  • Professional software development experience, with deep expertise in Pythonand its data/engineering ecosystem (e.g., pandas, NumPy, FastAPI, orchestration tools).
  • Proven track recordof delivering production-grade automation, data pipelines, or testing frameworks in a complex enterprise environment; financial services experience strongly preferred.
  • Solid AI/ML knowledge, including practical experience with machine learning libraries and/or LLM-based application development (e.g., API integration, prompt engineering, RAG-style document workflows).
  • Strong experience with test automation, CI/CD, and modern software engineering practices (Git, code review, containerization).
  • Experience working with large datasets, data quality/linearity checks, and SQL; familiarity with enterprise data platforms.
  • Ability to work effectively in a cross-functional, global team and communicate technical concepts to non-technical stakeholders.

Preferred Qualifications

  • Exposure to quantitative risk models(market risk and/or credit risk) and the model lifecycle: development, validation, documentation, and ongoing monitoring.
  • Familiarity with the model risk regulatory landscape and governance expectations in banking.
  • Experience with workflow orchestration platforms, cloud environments (AWS/Google Cloud), and container orchestration (Docker/Kubernetes).
  • Background in quantitative finance, statistics, or data science; an advanced quantitative degree is a plus.
  • Experience mentoring engineers and leading small technical workstreams.

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Job Family Group:

Technology

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Job Family:

Applications Development

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Time Type:

Full time

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Most Relevant Skills

Please see the requirements listed above.

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Other Relevant Skills

For complementary skills, please see above and/or contact the recruiter.

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Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law.

If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi.

View Citi’s EEO Policy Statement and the Know Your Rights poster.

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