Experienced Summer Intern - Infrastructure & Climate Development Impact (MBA, MSc or equivalent)

About BII

British International Investment is the UK’s development finance institution, owned by the UK Government. With a mission to solve the biggest global development challenges, we aim to create a virtuous circle of investment and impact. Your contribution will be essential. 

It won’t be easy: we do the hardest work in the most complex markets. Be prepared to test your skills, get creative and say your piece as you take on high-profile work as part of a diverse team of exceptionally smart, passionate people. 

In return, you can take your career to all-new places in a culture that rewards curiosity and collaboration, and balances high performance with wellbeing.

BII at a glance

75 years supporting sustainable business growth in developing and emerging markets

£8.1 billion in net assets

1,400+ businesses invested in

950,000 workers in the businesses we support

£9 billion in new investments planned in the next 5 years

600+ people in our diverse global team

3 key development objectives: Productive | Sustainable | Inclusive

The Role and Purpose

BII’s Development Impact Management team is market-leading and provides technical leadership to assess, manage and evaluate the impact of our investments. BII’s objective is to push the boundaries in impact management within a world-class impact framework designed to deliver our Productive, Sustainable and Inclusive impact objectives. We take an active approach to impact management, utilising a framework based on the Impact Management Project’s consensus and the Operating Principles for Impact Management.

Our impact professionals work side-by-side with our investment teams to actively manage the impact of every investment we make. This approach is designed to create deals teams with the professional capability and expertise to reflect our mandate to improve people’s lives, protect the planet and make a financial return.

BII’s Development Impact team are embedded impact professionals who are sector specific and work across products, sectors and regions. The team operate a matrix structure of Leads organised by sector groups which are: Financial Services Group (FSG), Infrastructure & Climate Group (I&C), and Industries, Technologies and Services Group (ITS).

Assignments will be based on experience, interests, and the needs of the I&C DI team - these may involve task-specific activities as well as broad team engagement.

Responsibilities may include inter alia:

The role is responsible for delivering effective and high-quality impact management consistent with BII’s Impact Framework, including:

• Analysing I&C development impact themes and market issues to inform investment activities
• Working with team members to carry out specific transaction and portfolio analysis assignments to inform transaction design, assessment and portfolio management
• Helping with impact data compilation, validation, and analysis
• Helping to design sector or thematic development impact studies within the I&C Group that could strengthen the investment impact thesis

The Candidate (please note this programme is not for undergraduates)

Background

• Studying towards an advanced degree (MBA, MPhil, MSc, or equivalent) in a relevant discipline, preferably in economics/econometrics, development finance or development studies.
• Work experience in a relevant field, preferably within investment, management consultancy or infrastructure development industry.
• Work experience in developing countries, preferably in Africa and/or South Asia.

Our cultural values

We look for team members who aspire, as we do, to work at our best and to be:

• Impact-led, commercially rigorous
• Tenacious in the face of challenges
• Collaborative and caring

British International Investment is committed to diversity and inclusion and welcomes all applicants regardless of age, disability, gender reassignment, marriage and civil partnership, pregnancy and maternity, race, religion or belief, sex, sexual orientation or educational background. 

Application Process 

• Please provide a cover letter with your application, and tell us why you would like to join the Summer Internship at BII, and why you have chosen to apply for this business area / team
• Please apply for one internship only
• Position opened: 27 October 2025
• Position closes: 17 November 2025
• Salary: £66,320 (pro-rated over 8 or 10 weeks)

Please note BII will pay for flights to London for those studying internationally