Senior Python Developer - Quant Models AI Automation, Vice President

Posted Yesterday
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London, England, GBR
In-Office
Senior level
Fintech • Financial Services
The Role
Design and build Python services, pipelines, testing frameworks, data analysis tools, and lifecycle management systems for quantitative market and credit risk models. Implement auditable AI/ML and LLM-based automation for documentation, data quality, testing, and workflow assistance. Collaborate with quants, validators, data engineers, and program leaders while promoting secure engineering practices, mentoring developers, and contributing to technical design.
Summary Generated by Built In

We are seeking a senior Python Developer within Risk Technology to 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 frameworks for quantitative models, including test orchestration, result capture, benchmarking, and reporting.
  • Develop data analysis and reconciliation tooling over 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 automation for 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 Python and its data/engineering ecosystem (e.g., pandas, NumPy, FastAPI, orchestration tools).
  • Proven track record of 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.

Skills Required

  • STEM degree in Computer Science, Engineering, Mathematics, Statistics, Physics, or a related field
  • Professional software development experience with deep expertise in Python and its data and engineering ecosystem
  • Experience delivering production-grade automation, data pipelines, or testing frameworks in complex enterprise environments
  • Practical AI/ML experience, including machine learning libraries or LLM-based application development
  • Experience with test automation, CI/CD, Git, code review, containerization, and modern software engineering practices
  • Experience working with large datasets, data quality and lineage checks, and SQL
  • Ability to collaborate in cross-functional global teams and communicate technical concepts to non-technical stakeholders
  • Financial services experience
  • Exposure to quantitative market risk or credit risk models and the model lifecycle
  • Familiarity with model risk regulations and banking governance expectations
  • Experience with workflow orchestration platforms, AWS or Google Cloud, Docker, or Kubernetes
  • Master's degree or advanced quantitative degree
  • Experience mentoring engineers and leading small technical workstreams

Citi Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Citi and has not been reviewed or approved by Citi.

  • Healthcare Strength Benefits coverage is positioned as comprehensive, including health, dental, and vision insurance plus on-site clinics, prescription drug support, and disability coverage. Family-building support such as fertility assistance is described as a notable differentiator within the overall package.
  • Retirement Support Retirement benefits are framed as strong, highlighted by a 401(k) with matching and additional plan options like a Roth 401(k). Financial support is reinforced through discounts and broader financial guidance resources tied to the benefits ecosystem.
  • Wellbeing & Lifestyle Benefits Wellbeing support extends beyond insurance through programs like an Employee Assistance Program, counseling/legal resources, and gym or wellness reimbursement. These offerings increase the perceived total rewards value even when cash compensation sentiment varies by role.

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