Location
London Office

Hours
Full Time - 12 Weeks (Starting June 2027)

Salary
Negotiable

About the Role
The Finance Engineer Summer Internship Programme at London Stock Exchange Group (LSEG) offers a unique opportunity to experience what a career as a Financial Engineer entails. You will work on real projects alongside experienced engineers within the Optimisation Strats Team in the Post Trade Engineering division. The team focuses on designing, building, implementing, and maintaining algorithms central to our services, including models for linear or convex optimisation problems that translate into financial transactions to improve derivatives portfolios. You will be part of a small team of 4-6 financial engineers working on product enhancements, strategic projects, and client-driven improvements. Possible projects include developing new scaling schemes, introducing mixed integer models, sensitivity analysis of constraints, code refactoring, runtime performance improvements, and enhancing data validation processes.

This internship is designed for penultimate or final year undergraduate students planning to continue to a Masters in 2027/28, studying Maths, Physics, Engineering, Computer Science, or other quantitative fields. You will gain hands-on experience in financial engineering, working closely with product development and client feedback to drive innovation and excellence.

Recruitment Process
The recruitment process includes submitting an application and resume, completing a technical and coding assessment, an untimed immersive online assessment, a strength-based video interview, and a virtual half-day assessment centre involving various exercises. Applications close on 30th November, with early applications encouraged as candidates are reviewed on a rolling basis. All assessment centres are conducted virtually.

Life at LSEG
LSEG embraces hybrid working with three days in the office and flexible working arrangements. The company values innovation, quality, integrity, partnership, excellence, and change. With a global workforce of 25,000 across 65 countries, LSEG fosters a diverse and inclusive culture where individuality is respected. The organisation is committed to sustainability, community engagement through the LSEG Foundation, and offers tailored benefits including healthcare, retirement planning, paid volunteering days, and wellbeing initiatives.

Experience
- Experience with Python and ideally familiarity with pandas and numpy
- Strong mathematical background including numerical methods, linear algebra, probability, and statistics
- Basic understanding of linear and/or mixed integer programming and convex optimisation
- Excellent problem-solving skills
- Knowledge of basic financial products is a plus
- Familiarity with UNIX is desired but not required

About you
- Passionate about pursuing a career in Financial Engineering
- Interested in learning about the full breadth of the business and contributing to its growth and diversification
- Able to demonstrate that how you achieve results is as important as what you achieve
- Eligible to work in London or New York without restrictions for the duration of the internship

Qualifications
- Penultimate or final year undergraduate student planning to continue to a Masters in 2027/28
- Studying Maths, Physics, Engineering, Computer Science, or other quantitative fields