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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.

Telecommunication Network Analysis for Telecom New Zealand

Castalia helped Telecom New Zealand show that regulating access at a single layer of network architecture could achieve competitive outcomes for broadband internet and minimize market distortions. The telecommunications company was concerned that regulation requiring Telecom to offer competitors access at multiple layers of the broadband service stack would distort the market, limit cost recovery, and undermine network investment.
June 19, 2019/by sophie

Telecommunication Regulation Review, Papua New Guinea

Castalia helped Digicel present a case against new proposed regulation in Papua New Guinea. Digicel entered the Papua New Guinea telecommunications market and invested heavily in mobile infrastructure. Incumbents who had failed to invest complained that new investment made the entrant a dominant firm and wanted the regulator to change regulation and give all competitors compulsory access to Digicel’s network.
June 19, 2019/by sophie

Telecommunications Merger Market Model for Spark, New Zealand

Telecommunication company Vodafone and pay-tv company SKY Television wanted to merge. Castalia’s analysis helped convince the Commerce Commission, the competition authority in New Zealand, that the merger was anti-competitive. What are the potential effects on competition when content providers (those who produce programs) and delivery platforms (broadband and mobile services) propose vertical integration? We analyzed the implications and were able to provide a good test of the effects of vertical integration between content and delivery platforms in telecommunications.
June 29, 2019/by Site Admin

The American Chemical Society Published Findings From “Decarbonizing Water: The Potential to Apply the Voluntary Carbon Market toward Global Water Security” Report

July 30, 2024/by admin

The Untapped Potential for Voluntary Carbon Markets in the Water Sector

Climate funds have great potential to improve the efficiency of underperforming water utilities. Castalia developed a concept for a Climate Fund for Water and Energy Efficiency Performance-based Contracts (PBCs).  
December 21, 2023/by admin

Three Water Asset Management, New Zealand

Castalia helped the New Zealand Department of Internal Affairs diagnose problems in water asset management, and identified factors that were most important in driving good asset management. A water supply contamination incident in Havelock North left 5,500 residents ill. The New Zealand Department of Internal Affairs wanted to improve water asset management throughout all regions in the country to prevent future contaminations.
June 21, 2019/by sophie

TIFIA Portsmouth Bypass PPP Advisory, USA

Castalia assessed the creditworthiness of a highway project to relieve congestion in Ohio, and recommended approving private financing. Due to fiscal, the Ohio Department of Transportation sought private funding help with the Portsmouth Bypass project, requesting a loan of US$230 million from the Transportation Infrastructure Finance and Innovation Act (TIFIA).
October 17, 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

Transaction Advisory for Puerto Maldonado Wastewater Treatment Plant, Peru

ProInversion, the government entity responsible for promoting private investment in Peru, wanted to expand wastewater treatment and reuse services in Puerto Maldonado to accommodate the 25 percent of inhabitants that lacked sewer connections, while ensuring that effluent discharge into this important tributary of the Amazon meets environmental standards.
March 2, 2023/by Oxygen Digital

Transaction Advisory for the Canoas Wastewater Treatment Plant, Colombia

Much of the wastewater from Bogota’s 11 million inhabitants flows into the Bogota River without adequate treatment. The problem was too big for Bogota’s utility on its own. Colombia’s National Planning Department worked with stakeholders to agree that a PPP to deliver a massive new wastewater treatment plant was the best way forward. The PPP structure needed to be designed and consensus created.
March 2, 2023/by Oxygen Digital

Transmission Access Paper Picked Up by RenewEconomy

Castalia recommends a simpler and more effective approach to transmission pricing and the energy transition in Australia in a report appended to the Origin Energy submission.
October 16, 2019/by Site Admin

Transportation Contract Management for Manila, Philippines

Castalia advised the Philippines Government on creating a contract management office that would supervise and manage a PPP contract for a US$1.5 billion light rail transit line upgrade and extension. The Philippines Government wanted to alleviate Manila’s serious traffic congestion by upgrading and extending the city’s light rail transit line 1 (LRT1) and increasing throughout from 500,000 passengers to 800,000 passengers each day.
July 11, 2019/by Site Admin

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?

Public Private Partnerships Screening Criteria, Vietnam

Castalia developed a Toolkit and screening criteria for PPPs so the Government could attract the private finance that was needed in Vietnam’s water sector. Vietnam’s urban water sector needed $600 million of investments each year to improve and expand services. The Government wanted to attract private finance via PPPs, and needed help to establish a PPP framework for the sector.
June 19, 2019/by sophie

Industrial Tariff Submission for Puerto Rico Water Utility

Castalia helped the Coco Beach Utility Company (CBUC) prepare a tariff submission after being faced with a 49 percent hike in its wholesale water costs. The Coco Beach Utility Company (CBUC) was paying an unfair tariff for the water it purchased from its wholesale water supplier. Castalia prepared a tariff submission to help CBUC get a fairer tariff.
June 19, 2019/by sophie

Tariff Study and Business Plan for National Water Commission

Castalia designed a tariff structure, prepared a submission to the regulator, and developed a strategic plan for the National Water Commission to boost profitability, operational efficiency, and service delivery. Jamaica’s National Water Commission could not finance its capital expenditure needs as revenues were insufficient to cover reasonable costs.
June 19, 2019/by sophie

Water Supply Financial Model for Provo Water Company Shares

Castalia valued the shares of the Government of the Turks and Caicos Islands in the Provo Water Company. The Government of the Turks and Caicos needed to determine the fair value of its shares in the Provo Water Company, for the purposes of sale to another, private, shareholder.
June 19, 2019/by sophie

Economic Expert Witness for Telstra Duct Access, Australia

Castalia provided expert testimony and helped Australian telecommunication company Telstra to demonstrate that its duct access pricing was fair. Telstra owns Australia’s copper network. A competitor claimed that Telstra was overcharging the ACCC for access to its telecommunications ducts.
June 19, 2019/by sophie

Regulatory Framework for Small-Scale Water Providers, Jamaica

Castalia proposed a new regulatory framework for small private and community-based water and sewerage service providers in Jamaica. After Jamaica’s water sector was liberalized, small water and sewerage service providers developed in communities that previously lacked access to piped water supply and sewerage and sprang up to serve new housing developments and resorts. However, the water regulator did not know how best to regulate these newly created entities.
June 19, 2019/by sophie

Commercial Viability Regulatory Advice, Sydney Desalination Plant

Castalia analyzed the regulatory framework underpinning the privatization of the Sydney Desalination Plant, and the regulator’s historical performance, then modeled potential revenue outcomes for the successful bidder. Water security is a concern in Australia and state governments are responsible for ensuring supply. NSW’s state government sought to sell its asset under a regulatory regime that ensured water security for taxpayers, and also flexibility of operations.
June 19, 2019/by sophie

Energy Company Restructure for Communauté Electrique du Bénin

Castalia diagnosed CEB’s underlying problems, and recommended reform options to transform it into a viable and well-managed company. CEB’s poor financial performance was increasing costs of power for customers, hurting Benin and Togo’s economy, and damaging the viability of the West African Power Pool.
June 19, 2019/by rebecca

Pricing Model Review for Fonterra Dairy Processor, New Zealand

Castalia reviewed the pricing model for raw milk in New Zealand to determine if the pricing model could allow Fonterra to use its market power to deter entry by independent processors. More than 80 percent of milk in New Zealand is collected and processed by Fonterra, the country’s largest dairy co-operative. Concerns were raised over Fonterra using its market power to deter entry by independent processors.
June 19, 2019/by sophie

Sustainable Energy Trade Roadmap for Cross-Border Power

Castalia conducted a cost-benefit analysis of renewable energy market integration among Morocco, France, Germany, Portugal and Spain, and recommended transmission, regulatory and trading mechanisms to promote such trade. These countries want to integrate their electricity markets to scale up renewable technologies, decarbonize their power sectors, and meet the objectives of the Paris Agreement. However, legal, regulatory, and market barriers were obstructing integration.
June 19, 2019/by rebecca

Water Sector Investment Opportunity for World Bank Private Sector

Castalia developed a pipeline of water-sector investment opportunities for the IFC in the Middle East and North Africa. The Middle East and North Africa is the most water scarce region in the world. The IFC hoped to catalyze increased water investments to help avert a forecast 50 percent reduction in per capita water availability by 2050.
June 19, 2019/by sophie

Lake Remediation Economic Assessment, New Zealand

Castalia showed it was economically justified to invest in cleaning Lake Hayes, and that the economic benefits exceeded the costs of the cleaning options. The local community was increasingly unhappy about the water quality of popular amenity Lake Hayes. Environmental engineers gave the Otago Regional Council three clean-up options, but the Council wanted to know if the money was worth spending.
June 19, 2019/by rebecca