Water Practice: Economic and Financial Senior Analyst

Job Description

Location: Washington DC, USA

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Do you want to apply your economic and financial analysis skills to solve the world’s most complex water sector challenges? Challenges such as:

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• Turning around underperforming water utilities so they can afford to expand access
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• Ensuring cities don’t run out of water as a result of climate change, by developing appropriate plans, regulations and financing mechanisms
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• Managing transactions to bring private capital and technical expertise into municipal water and sanitation services.
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Can you communicate results in clear, compelling language? Do you share Castalia’s core values of Competence, Creativity, Consistency, Conscientiousness, Commitment, and Collaboration? If so, Castalia wants you on our team.

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Castalia is seeking Economic and Financial Senior Analysts to join our Water Practice in Washington, DC, who share our passion for: Thinking for a Better World.

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Who we’re looking for

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• A degree in Economics, Finance, Public Policy, Engineering, Business, or a related field
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• At least three years of relevant professional experience
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• Strong analytical and quantitative skills, including economic and/or financial analysis and modelling, with proficiency in Excel and the ability to apply structured problem-solving to complex issues
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• Experience working with governments, utilities, regulators, development finance institutions (DFIs), or infrastructure investors is highly desirable
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• Consulting experience or experience in infrastructure finance is strongly preferred
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• Excellent written and verbal communication skills in English and professional fluency in Spanish are required; fluency in French and Portuguese is an advantage
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• The desire and ability to learn new things quickly
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• Authorization to work in the United States.
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About Castalia

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At Castalia, we use our knowledge, skills, and experience to question and redefine how the world's infrastructure challenges are solved. Thinking for a better world is more than our tagline – it is our driving philosophy. Founded in 1980, Castalia has over 40 years of global experience advising private sector investors, governments and international donor organizations on infrastructure. Castalia has undertaken assignments in 144 countries globally.

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Benefits

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Castalia offers a competitive benefits package that includes additional paid holiday leave between Christmas and New Year's public holidays, flexible working arrangements that allow staff to work three days a week from our Washington, DC office and two days from home, a travel policy that enables staff to combine work and personal travel, comprehensive health insurance plans, life insurance, 401(k) matching contributions, and ongoing professional training, coaching, and development opportunities to support rapid career growth.

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How to apply

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If you are interested in this position, please apply directly on our website:

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You will need the following information and documents ready.

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• Cover letter and resume/CV
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• Two professional references
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• Academic transcripts
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Application closing date: 6 November 2026

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Position start date: 25 January 2027

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Due to the volume of applications we receive, only shortlisted candidates will be contacted.