Summer Intern

CGC; Boulder (CO); On-site; USD 34,000 - 62,000; Part time

Job summary

CGC invites interns to contribute to finance, accounting, and operational work across its divisions. The program emphasizes hands-on exposure, mentorship, and the opportunity to work on real projects connected to CGC’s clean energy and infrastructure priorities.

The 8–12 week Summer Internship runs July–August with locations in Washington, DC; New York, NY; Boulder, CO; Walnut Creek, CA and compensation of $25–$45 per hour based on experience. Apply through CGC’s Careers Portal.

Qualifications

• Enrolled in BA/BS program or completed BA/BS degree.
• Strong academic performance and interest in finance and operations.
• Analytical, communication, and organizational skills.
• Ability to work in a fast-paced, collaborative environment.
• Comfort working with spreadsheets, reports, and internal documentation.

Responsibilities

• Support finance, accounting, and operational projects in CGC’s divisions.
• Conduct research, financial analysis, modeling, data analysis, or operational analysis.
• Assist with preparation of reports, presentations, internal documentation, and process materials.
• Participate in cross-functional meetings and strategic discussions.
• Contribute to deliverables tied to defined learning objectives.

Skills

Strong analytical

Communication skills

Organizational skills

Attention to detail

Spreadsheet proficiency

Report preparation

Education

Enrolled in BA/BS program (Junior or Senior)

BA/BS degree graduate

Enrolled in Master’s program

Master’s degree graduate

Tools

Spreadsheets

Job description

About CGC

CGC is a nonprofit investment firm that finances and originates clean energy, water, and resilient infrastructure projects to accelerate clean air, clean water, and affordable energy for communities across America.

We collaborate with the public and private sectorsto bridge financing gaps and mobilize private capital into projects that deliver measurable economic and environmental impact at scale. Every dollar we invest is structured to multiply, generating durable returns for people, markets, and the environment.

Over the past decade, CGC has demonstrated the power of public-private investment by helping catalyze economic accelerators nationwide and mobilizing billions of dollars toward affordable clean energy and resilient infrastructure. Our model fills market gaps, unlocks private capital, and proves that economic growth and environmental progress can advance together.

A Career at CGC

A career at the CGC is grounded in impact. Our six core values guide how we invest and how we work together.

Innovation drives creative solutions and continuous improvement.
Mission-Driven Focus keeps long-term impact at the center of every decision.
Partnership shapes how we mobilize capital and build trust-based relationships.
Accountability defines our stewardship and commitment to results.
Collaboration strengthens cross-functional teamwork and shared responsibility.
Transparency ensures open communication and integrity in how we operate.

Our culture is fast-paced, rigorous, and purpose-driven. If you are motivated by solving complex challenges, building new markets, and delivering measurable impact within a collaborative team, CGC offers a platform to do that work with purpose.

Summer Internship Program

Finance & Operations Support

Location: Washington, DC | New York, NY | Boulder, CO | Walnut Creek, CA
Duration: July – August, 8–12 weeks
Compensation: $25.00 – $45.00 per hour, based on experience and qualifications
Application Deadline: Open until filled

Program Overview

The CGC Summer Internship Program is a structured, mission-driven experience designed to provide meaningful, hands‑on exposure to CGC’s finance, accounting, and operational work. Interns will support one of CGC’s divisions based on organizational priorities and business needs.

This internship provides an opportunity to contribute to real projects, gain exposure to cross-functional collaboration, and support work connected to CGC’s clean energy, infrastructure finance, and operations priorities.

The program is designed to deliver:

• Clearly defined scope of work and responsibilities
• Direct supervision and mentorship
• Exposure to cross-functional collaboration
• Professional development opportunities
• A capstone presentation to senior leadership at the conclusion of the program

Exceptional interns may be considered for future employment opportunities aligned with organizational needs.

Key Responsibilities

Responsibilities will vary by division but may include:

• Supporting active projects aligned with CGC’s clean energy and infrastructure investment initiatives
• Conducting research, financial analysis, modeling, data analysis, or operational analysis
• Assisting with preparation of reports, presentations, internal documentation, and process materials
• Participating in cross-functional meetings and strategic discussions
• Contributing to deliverables tied to defined learning objectives
• Supporting finance, accounting, and operational projects as needed

For interns supporting the Finance and Operations Division , responsibilities may include:

• Assisting with tying out financial statements and footnotes for the FY 2025 audit, including footing and cross-footing documents and confirming disclosed amounts match the trial balance
• Auditing the contract database and reconciling information against vendor invoicing
• Assisting with balance sheet reconciliations during the month-end close process
• Reconciling timecards within payroll system reports and noting any differences
• Auditing grant draw files against accounting records
• Supporting the Controller with documenting processes and procedures related to managing investments from an internal control and accounting perspective
• Reviewing travel and expense submissions to identify grant expense eligibility
• Assisting with implementation and testing related to Accounts Payable and Procurement projects
• Supporting other ad-hoc finance, accounting, and operations projects as assigned

Each intern will have a designated supervisor and clearly outlined deliverables.

Minimum Qualifications

Candidates must meet one of the following education levels:

Enrolled in a Bachelor’s Program – Junior or Senior Status

• Currently enrolled in an accredited BA/BS program
• Entering junior or senior year at the time of the internship

Bachelor’s Degree Graduate

• Completed a BA/BS degree from an accredited institution

Enrolled in a Master’s Program

• Currently enrolled in an accredited Master’s program
• At least one semester, or equivalent, remaining at the time of application

Master’s Degree Graduate

• Completed a Master’s degree from an accredited institution

All candidates should demonstrate:

• Strong academic performance
• Interest in clean energy, infrastructure finance, public‑private investment, mission‑driven finance, accounting, or operations
• Strong analytical, communication, and organizational skills
• Ability to work in a fast-paced, collaborative environment
• Attention to detail and ability to follow processes accurately
• Comfort working with spreadsheets, reports, and internal documentation

Preferred Areas of Study

• Finance, Accounting, Economics, or Business Administration
• Mathematics, Statistics, Data Science, or Quantitative Finance
• Computer Science, IT, Cybersecurity, or Financial Technology

Program Structure

• Hands-on project work within assigned division
• Dedicated mentorship and structured oversight
• Professional development sessions and networking exposure
• Final capstone presentation and recognition event

Application Process

All candidates must apply through CGC’s Careers Portal.

Applicants should submit:

• Resume/CV
• Cover letter outlining interest in the program and career goals

Shortlisted candidates will be invited to interview. Final selections will be made on a rolling basis.

Candidates must be legally authorized to work in the United States at the time of hire and throughout their employment. CGC does not currently sponsor employment visas and is unable to support work authorization that is time-limited or employer-restricted.

CGC is an Equal Opportunity Employer committed to building an inclusive workplace and advancing equitable economic and environmental outcomes nationwide.

We consider all qualified applicants without regard to race, color, religion, sex, national origin, age, disability, veteran status, or any other protected characteristic.