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Career opportunities

Thank you for your interest in a role at Castalia. We recruit and onboard new team members quarterly, and the next round of career opportunities will be posted by 8 July 2025 (for a 7 October 2025 start date).

In the meantime, please feel free to submit your materials to our talent pool using the link below. We will notify you if we have an opportunity that may be a good match.

Submit your interests here.

Nigeria’s Rural Electrification Agency Launches Minimum Subsidy Tender for Mini Grids

Nigeria's Rural Electrification Agency issued an Invitation for Initial Selection for the first phase of a minimum subsidy tender.
April 24, 2019/by rebecca

Non-revenue Water Performance Based Contracts

Castalia co-authored the World Bank published operational manual The Use of Performance-Based Contracts for Nonrevenue Water Reduction: Output of the Global Program on Developing Good PBC Practices for Managing NRW. This loss of non-revenue water (NRW) prevents utilities from improving services or expanding access. Sometimes, high NRW leads to water rationing which often causes contamination of the network and unsafe drinking water.
October 17, 2019/by Site Admin

Privately financed performance-based contracts for non-revenue water in the Americas post COVID-19

Castalia's Chef Executive, David Ehrhardt, delivered a webinar…
April 21, 2020/by Site Admin

NZ DOC Living Water Economic Evaluation

Castalia evaluated the environmental and economic impacts of the Living Water program in the Waituna catchment, an ecologically and culturally significant area in the Southland region for the New Zealand Department of Conservation.
June 27, 2022/by Oxygen Digital

Castalia advises on New Zealand Hydrogen Roadmap

Castalia is preparing detailed modelling for to inform New Zealand’s hydrogen pathway for the Ministry of Business, Innovation and Employment
April 13, 2020/by Site Admin

Spreadsheet-based pandemic model for COVID-19

Clive Harrison is an old friend and a water sector professional…
April 22, 2020/by Site Admin

Performance-based Contract for Water and Sanitation Utility, Mexico

Mexico City was experiencing inadequate water service quality and poor technical and commercial efficiency. SACMEX, the public utility providing water and sanitation services to Mexico City, sought to replace existing commercial out-sourcing contracts with performance-based PPP contracts to improve service quality and affordability.
March 2, 2023/by Oxygen Digital

Pharmaceutical Policy Paper for the Pharmacy Guild, New Zealand

We identified how pharmacists and District Health Boards could work together to reduce healthcare costs in New Zealand. District Health Boards considered spending cuts to reduce the cost of healthcare in New Zealand. This would result in lower dispensing fees, so the Pharmacy Guild of New Zealand hoped to identify additional services that could be purchased from pharmacists to preserve financial viability of pharmacies.
July 11, 2019/by Site Admin

Pharmaceutical Procurement Framework for High-Cost Medicine

Castalia developed proposals to incorporate targeted high-cost medicines into the public health system’s pharmaceutical benefits scheme. New Zealand’s pharmaceutical procurement model favors medicines that provide broad-spectrum benefits to larger population groups. Patients have significantly lower levels of access to high-cost targeted medicines compared to Australia.
July 17, 2019/by Site Admin

Pipeline of Climate-friendly Municipal Infrastructure Investments, Peru

IFC wanted to support strategic, bankable infrastructure projects that provided sustainable, reliable, and competitive services to Peru’s cities with the goal of addressing rapidly increasing urban populations and mitigating GHG emissions. The sectors included energy, transport, green buildings, water, waste, and telecommunications.
March 2, 2023/by Oxygen Digital

Pipeline of Viable Clean Energy Projects, Costa Rica, Dominican Republic, Guatemala, Honduras, Jamaica, Panama

The US Trade and Development Agency (USTDA) wanted to support clean energy investment in Central America and the Caribbean by funding feasibility studies but needed help identifying which project proposals to fund.
March 2, 2023/by Oxygen Digital

Pipeline of Viable Renewable Energy Projects, Chile

USTDA wanted to help Chile move away from fossil fuels toward cheaper, more efficient sustainable energy sources by funding feasibility studies for renewable energy projects.
March 2, 2023/by Oxygen Digital

We look for candidates who are:

competent

Competent

We are experts in finance, economics, law, and policy applied to infrastructure, natural resources and social service provision. You’re a great fit for us if you can demonstrate excellent technical and analytical abilities, and if you’re willing to learn new skills.

creative

Creative

We’re passionate about solving the infrastructure and resource problems of the world in creative and innovative ways. We’re building a team that is insightful, resourceful and visionary. You’re a great fit for us if you’re a creative problem solver.

consistent

Consistent

Castalia is respected for the quality of our work. We’ve achieved this by being reliable, organized and efficient. You’re a great fit for us if you’re conscientious, reliable and keep your promises.

concientious

Conscientious

We’ve nurtured a culture of excellence, but we’re able to maintain it because our team is made up of disciplined self-starters. You’re a great fit for us if your passion and creativity is matched with discipline, commitment and follow-through.

committed

Committed

It takes focus and hard work to be successful. Solving the world’s most difficult problems is never easy! You’re a great fit for us if you want to put achievement of team goals above personal interests, know how to work in a team, and can persevere through set-backs.

collaborative

Collaborative

Consulting demands a lot from the individual and the team. We are looking for team members who are patient, approachable, good-natured and willing to work with others to solve big problems. You’re a great fit for us if you bring empathy, humility and excellent communication skills and would like to help the team achieve our mission.

Collectively, these are known as our ‘6 C’s’ and they encompass the qualities that lead to success at Castalia.

We look for candidates who are:

competent

Competent

We are experts in finance, economics, law, and policy applied to infrastructure, natural resources and social service provision. You’re a great fit for us if you can demonstrate excellent technical and analytical abilities, and if you’re willing to learn new skills.

creative

Creative

We’re passionate about solving the infrastructure and resource problems of the world in creative and innovative ways. We’re building a team that is insightful, resourceful and visionary. You’re a great fit for us if you’re a creative problem solver.

consistent

Consistent

Castalia is respected for the quality of our work. We’ve achieved this by being reliable, organized and efficient. You’re a great fit for us if you’re conscientious, reliable and keep your promises.

concientious

Conscientious

We’ve nurtured a culture of excellence, but we’re able to maintain it because our team is made up of disciplined self-starters. You’re a great fit for us if your passion and creativity is matched with discipline, commitment and follow-through.

committed

Committed

It takes focus and hard work to be successful. Solving the world’s most difficult problems is never easy! You’re a great fit for us if you want to put achievement of team goals above personal interests, know how to work in a team, and can persevere through set-backs and pain.

collaborative

Collaborative

Consulting demands a lot from the individual and the team. We are looking for team members who are patient, approachable, good-natured and willing to work with others to solve big problems. You’re a great fit for us if you bring empathy, humility and excellent communication skills and would like to help the team achieve our mission.

Collectively, these are known as our ‘6 C’s’ and they encompass the qualities that lead to success at Castalia.

Recruitment FAQs

  • Intern
  • Research Associate
  • Economics and Financial Analyst
  • Senior Analyst
  • Manager
  • Senior Management (Directors, Practice Leaders, CEO/COO/ED)
  • Corporate Services

We’re glad you’re interested in working with us. Please click on the job posting above and start your application.

Once we have screened for candidates, had the informational interview and we’re ready to start with interviews, we aim to have each candidate’s recruitment process completed in 2 weeks.

Informational interview:

This is an introductory interview with someone from the team you’re likely to work with. You have an opportunity to ask questions about Castalia, the work environment and the kind of work you can expect to do. You will also be asked general questions about yourself and your professional education and experience. After this you decide if this is the job for you and if you want to go through our formal assessment process. At this point we also give you feedback on whether we think you’d likely be a good fit for the role.

Team interviews:

These interviews are designed to test your knowledge, based on the position you are applying for. Your understanding and application of finance and microeconomics will be tested if you are applying to be part of our team of analysts. All candidates will have an interview to discuss Castalia’s 6Cs, which is a discussion about our values and the types of candidates we’re looking to hire.

Final interview

The final interview will be with a member from our Senior Management. It will cover all elements mentioned above. Managers and above will have an additional interview with the CEO.

We suggest that you read the following materials in preparation for the interviews. This is what we expect our team to know. If you’re unfamiliar with these concepts and the material, your application is unlikely to be successful.

Interview on microeconomics:

  • Basic Microeconomics, you’d want to brush up by reviewing an introductory microeconomic text book. The interview will typically cover the following areas:
    • Supply and Demand, price formation, market equilibrium
    • Utility maximization, profit maximization, equalization at the margin as a concept
    • Perfect competition model and monopoly models
  • A good Public Finance/Public Economics textbook should cover: these, e.g. Rosen’s textbook:
    • Part 1: Getting Started
      Chapter 1: Introduction
      Chapter 2: Tools of Positive Analysis
      Chapter 3: Tools of Normative Analysis
    • Part 2: Public Expenditure: Public Goods and Externalities
      Chapter 4: Public Goods
      Chapter 5: Externalities
      Chapter 6: Political Economy
      Chapter 7: Education
      Chapter 8: Cost-Benefit Analysis

Interview on finance:

The interview will cover:

  • Financial statement analysis
    • Reading and understanding financial statements (balance sheet, cash flow statements, income statements). You should know the differences, what information can be found on what statement, correct way to record transactions and interpret information from these statements, etc.
    • Calculating and comparing relevant financial ratios
  • Corporate finance – we suggest reviewing:
    • How to value companies including DCFs and calculating present value, WACC and the CAPM model
    • Capital structure and managing risk, financing versus valuation and key differences between debt and equity
  • The Corporate Finance textbook we recommend is written by Myers and Brealey. 

Myers, Brealey. Principles of Corporate Finance (11th Edition). New York: McGraw-Hill, 2014.

  • Part 1: Value
    Chapter 1: Introduction to Corporate Finance
    Chapter 2: How to Calculate Present Values
    Chapter 3: Valuing Bonds
    Chapter 5: Net Present Value and Other Investment Criteria
    Chapter 6: Making Investment Decisions with the Net Present Value Rule
  • Part 2: Risk
    Chapter 7: Introduction to Risk and Return
    Chapter 8: Capital Asset Pricing Model
    Chapter 9: Risk and the Cost of Capital
  • Part 3: Best Practices in Capital Budgeting
    Chapter 10: Project Analysis
  • Part 4: Financing Decisions and Market Efficiency
    Chapter 13: Efficient Markets and Behavioral Finance
  • Part 5: Payout Policy and Capital Structure
    Chapter 17: Does Debt Policy Matter
    Chapter 19: Financing and Valuation

Why choose Castalia?

Interested in learning more?

Interested in learning more?

Utility-Scale Solar PV Transaction Advisory, Bermuda

Castalia advised the Government of Bermuda on a transaction for a 6MW solar PV project and helped the project reach financial close. The government had identified a potential site for a large-scale renewable energy project on public land but didn’t have experience designing and running a competitive tender for renewable power.
July 18, 2019/by Site Admin

Review of Early Childhood Education Market, New Zealand

Castalia assessed competition and concentration in the Early Childhood Education market in New Zealand and found that the market was competitive. New Zealand’s Ministry of Education was concerned that the declining number of Early Childhood Education providers could reduce competition, leading to higher prices or lower quality.
July 18, 2019/by Site Admin

Institutional Structure and Business Plan Mombasa County, Kenya

We developed an institutional structure and business plan for Mombasa County to efficiently deliver water supply and sanitation services. The local water service only reached 10 percent of the people, was unreliable, and financial unsustainable.
July 18, 2019/by Site Admin

Seafood Industry Growth Strategy, New Zealand

Castalia advised Seafood New Zealand on ways to double exports by 2025, to meet the goal set by the government in 2012. To overcome export constraints, primary industries need to deliver better value for money, improve industry co-ordination for pricing, and reform regulations.
July 18, 2019/by Site Admin

Water Management Assistance Contract, Haiti

Castalia assisted Haiti’s water agency DINEPA in preparing and running a transaction for a management assistance contractor to manage key utility functions in the capital. The 2010 earthquake destroyed Port-au-Prince’s water infrastructure. It was urgent to rebuild the system and assist the utility’s management.
July 18, 2019/by Site Admin

School Procurement Feasibility Study, New Zealand

Castalia prepared a Stage One Business Case testing whether PPPs for schools would offer value for money. The Ministry of Education was challenged with managing its property portfolio and building better capacity to manage school properties in New Zealand.
July 18, 2019/by Site Admin

Regulatory Reform of the Water Sector Victoria, Australia

We advised on how regional public water utilities the State of Victoria, Australia, could be regulated by the Essential Services Commission. We advised on how regional public water utilities the State of Victoria, Australia, could be regulated by the Essential Services Commission. The Victoria Department of Natural Resources and the Environment was concerned that regional water utilities posed risks, both in terms of water quality, and future budgetary demands.
July 18, 2019/by Site Admin

Transaction Advice for Expressway Connector, Philippines

Castalia helped run a “Swiss challenge” competitive procurement process for a new highway in Manila. The Philippines government had received an unsolicited proposal to build an 8km highway in Manila and was required by law to run a competitive procurement process (“Swiss challenge”) to ensure the best-value bid was chosen.
July 17, 2019/by Site Admin

Pipeline Regulation Expert Opinion, Liquid Wholesale Gas Market

Castalia found that the AEMC’s market access regime was not the right tool to create an efficient gas market on Australia’s East Coast, and that additional regulatory powers were needed. A spike in domestic gas prices as a result of increased LNG exports led to the realization that reforms where needed to create a more liquid wholesale gas market. It was not clear that AEMC’s existing powers were adequate for the task.
July 17, 2019/by Site Admin

Disruptive Technologies in Energy Distribution Analysis

Castalia advised Vector on how disruptive technologies, including battery storage, distributed generation, and smart-grids, would change the optimal configuration of electricity distribution grids in the future, assisting Vector’s investment planning. Vector was worried that disruptive technologies could strand the investments it planned to make in the distribution grid.
July 17, 2019/by Site Admin

Diversification Strategy for Farmers on Livestock Exports, Australia

We identified and prioritized new export markets for livestock originating from the Northern Territory of Australia. The Northern Territory was heavily dependent on the Indonesian market for trade of livestock and wanted to diversify to other markets.
July 17, 2019/by Site Admin

Electricity Distribution Proposal Review for Orion, New Zealand

Castalia helped Vector, New Zealand’s largest electricity distribution utility, ensure that the regulatory regime made suitable provision for recovery of rebuilding costs following an earthquake, through regulatory advice to the Vector and a submission to the Commerce Commission. A series of earthquakes in Christchurch had damaged much of the electricity distribution system. The local utility requested a customized price control path to enable it to recover rebuilding costs. Vector also operates in earthquake-risk areas and wanted to be sure that precedents created after the Christchurch earthquake would be suitable if it or other distribution companies were hit by a serious earthquake.
July 17, 2019/by Site Admin