Intern: Economic and Financial Research

Location: Washington, DC

Castalia is seeking candidates for up to two internship positions. The position will be based in Castalia’s Washington, DC office. The interns would be responsible for:

• Conducting economic and financial research, analysis, and modeling;
• Producing written and visual outputs to clearly and concisely communicate the results of the analysis and modelling to clients; and
• Assisting with business development efforts.

The position is full-time or part-time (minimum 16 hours per week) and requires working on-site in our Washington, DC office. The internship duration is six to nine months, with a start date of 3 August 2026 or another mutually agreed date.

Who we’re looking for

Castalia is seeking candidates who are currently enrolled in a relevant graduate or undergraduate program (e.g., international economics, finance, and policy) and expect to graduate within the next 18 months, or who have graduated within the past 12 months. 

• Excellent research and analytical skills, and an ability to apply theory to real problems 
• Native-level fluency in English
• Excellent presentation and communication skills
• Advanced Excel skills (logical formulas, lookups, pivot tables, etc.)
• Relevant work experience, for example, in infrastructure, specifically related to public-private partnerships or urban utilities
• US Work Authorization.

How to apply

If you are interested in this position, please apply directly on our website: https://castalia-advisors.com/join/

You will need the following information and documents ready.

• Cover letter and Resume/CV
• Two professional references
• Academic Transcripts

Application closed date: 10 April 2026

Due to the number of applications we receive, we will only contact shortlisted applicants.