Quantitative Python Developer

Role Purpose

The Model Validation team is responsible for independently validating and monitoring cross‑asset models and analytics delivered by LSEG to its clients.

• Design and implement validation framework to assess the performance of analytics produced by LSEG quantitative libraries.
• Perform in‑depth validation of quantitative models and evaluate them using relevant performance metrics.
• Design and implement a technical solution to validate and monitor financial models.
• Develop an understanding of the quantitative library and its key components.
• Produce clear, well‑structured validation reports and present findings to internal collaborators.
• Define model testing strategies and document model methodologies and assumptions.
• Contribute to build and maintain the automated tests framework.
• Apply strong knowledge of financial markets, including pricing conventions and valuation assumptions.
• Deliver high‑quality insights and support with a strong customer‑focused mindset.
• Solve complex analytical and technical problems with a high degree of independence.

• Solid understanding of quantitative models and methodologies, with the ability to critically assess and validate them.
• Strong proficiency in Python (good development practices) and experience with key data structures and libraries.
• Demonstrated understanding of CI/CD principles.
• Knowledge of financial markets, products, and pricing frameworks.
• Strong problem‑solving skills and the ability to work on sophisticated model‑related challenges.

LSEG is a leading global financial markets infrastructure and data provider. Our purpose is to drive financial stability, empower economies and enable customers to create sustainable growth.  Our values of Integrity, Partnership, Excellence and Change underpin our purpose and set the standard for everything we do, every day.

Working with us means that you will be part of a dynamic organisation of 25,000 people across 65 countries, where individual voices are valued and diversity is encouraged.  You will be part of a collaborative and creative culture that champions new ideas and is committed to sustainability across our global business.

We are proud to be an equal‑opportunity employer.  We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, gender identity, gender expression, age, marital status, veteran status, pregnancy or disability, or any other basis protected under applicable law.  We can reasonably accommodate applicants’ and employees’ religious practices and beliefs, as well as mental‑health or physical‐disability needs.

Senior Associate

The anticipated base salary for this position is $108,800 – $181,300 (may vary by location).  The role is eligible for our Annual Incentive Plan (AIP/bonus plan) with target AIP rates commensurate with role level.  In addition to the base salary, LSEG offers a comprehensive benefits package including annual wellness allowance, paid time‑off, medical, dental, vision, flex spending & health savings options, prescription drug plan, 401(k) savings plan with company match, basic life insurance, disability benefits, emergency backup dependent care, adoption assistance, commuter assistance, and more.

Join us and be part of a team that values innovation, quality, and continuous improvement. If you’re ready to take your career to the next level and make a significant impact, we’d love to hear from you.