Job Description

The Direct Investment Unit is a global team delivering direct investment management integrated within our OCIO offering. We provide clients with greater portfolio control, agility, and customized solutions, leveraging access to DIU-managed pooled funds. This approach enhances outcomes while often lowering costs through tailored, flexible investment strategies.


We are seeking a talented individual to join our Investment Quant team within the Direct Investment Unit. This role will be based in London. This is a hybrid role that has a requirement of working at least three days a week in the office.

The placements dates are predicted to be August 2026 - September 2027.

Investment Quant Team - our dynamics


We work with different teams in the Direct Investment Unit, including Multi Asset, Credit, Liability Driven Investment and Equity. We deliver solutions and quantitative analysis for effective ex-ante investment decision making. We embrace new advanced technology, efficiency and creativity so that we can deliver more robust and scalable solutions. The Investment Quant team is part of the wider Quants Group, consisting of various quant teams across the Direct Investment Unit.


Your role


You will work in the team of investment quants whose day job is to provide quantitative analysis to inform decision making and solutions to improve decision making efficiency. You will be a member of a team that cover various parts of the Direct Investment Unit to share knowledge and experience. A key part of this will be to work with portfolio managers, strategists and analysts.

We will count on you to:

Work with the team to improve Excel and/or Python based solutions for investment decision making Contribute to internal quantitative library and development and tooling upgrades Work with the team to incorporate infrastructure changes and integrate them into solutions Work with the team to test inhouse developed systems and external vendor systems Participate in broader projects related to investments and analytics Work with the team to provide quantitative analysis to help inform investment processes and decision making. This includes ad-hoc market and portfolio analysis as well as monitoring portfolio risk from different aspects using internal and external risk systems. Assist in investment committee materials preparation

What you need to have:

Working towards a degree in economics, finance, statistics, maths, Strong interest in finance, investment and programming

What makes you stand out?

Strong analytical and quantitative skill set Knowledge and/or experience of python programming Knowledge and/or experience Excel

Why join our team:

We help you be your best through professional development opportunities, interesting work and supportive leaders. We foster a vibrant and inclusive culture where you can work with talented colleagues to create new solutions and have impact for colleagues, clients and communities. Our scale enables us to provide a range of career opportunities, as well as benefits and rewards to enhance your well-being


Mercer is a business of Marsh (NYSE: MRSH), a global leader in risk, reinsurance and capital, people and investments, and management consulting, advising clients in 130 countries. With annual revenue of over $24 billion and more than 90,000 colleagues, Marsh helps build the confidence to thrive through the power of perspective. For more information about Mercer, visit mercer.com, or follow us on LinkedIn and X.



Marsh is committed to embracing a diverse, inclusive and flexible work environment. We aim to attract and retain the best people and embrace diversity of age background, civil partnership status, disability, ethnic origin, family duties, gender orientation or expression, gender reassignment, marital status, nationality, parental status, personal or social status, political affiliation, race, religion and beliefs, sex/gender, sexual orientation or expression, skin color, or any other characteristic protected by applicable law. We are an equal opportunities employer. We are committed to providing reasonable adjustments in accordance with applicable law to any candidate with a disability to allow them to fully participate in the recruitment process. If you have a disability that may require reasonable adjustments, please contact us at reasonableaccommodations@mmc.com.



Marsh is committed to hybrid work, which includes the flexibility of working remotely and the collaboration, connections and professional development benefits of working together in the office. All Marsh colleagues are expected to be in their local office or working onsite with clients at least three days per week. Office-based teams will identify at least one "anchor day" per week on which their full team will be together in person.