The Opportunity

RETTEW is seeking a motivated Accounting Intern (Accounting Assistant) to join our Financial Services team in Lancaster, Pennsylvania, for Summer 2027.

This full-time internship offers hands-on experience with the accounting, reporting, compliance, and analysis activities that support a multidisciplinary engineering consulting firm. You will work directly with experienced Financial Services professionals while building practical skills beyond the classroom.

The ideal candidate is a junior or senior accounting major who plans to pursue CPA licensure and wants meaningful exposure to corporate accounting processes, audit and tax support, budgeting, reporting, and process improvement.

ASPIRE Internship Program RETTEW summer interns participate in ASPIRE , our internship program focused on professional growth, connection, and career development. ASPIRE complements your day-to-day work by providing opportunities to learn about RETTEW, connect with professionals and fellow interns, and build skills and relationships that extend beyond your individual internship assignment.

What You'll Do

As an Accounting Intern, you will:

• Support recurring accounting, reporting, compliance, and financial-analysis activities.

• Assist with annual accounting engagements, audit support, tax-return preparation, and the annual budgeting process.

• Help maintain supporting schedules, records, reconciliations, and other financial documentation.

• Assist with lease-accounting activities and recurring monthly analyses.

• Develop reports and organize financial information using Deltek Vantagepoint and Microsoft applications.

• Document Financial Services processes and identify opportunities to improve consistency and efficiency.

• Explore responsible uses of AI and automation to support Financial Services workflows.

• Complete assigned work accurately, communicate questions, accept feedback, and meet established deadlines.

What We're Looking For

Required

• Current junior or senior pursuing a bachelor’s degree in accounting.

• Intent to pursue CPA licensure after graduation.

• Foundational knowledge of accounting, taxation, and business concepts through completed coursework.

• Strong analytical, problem-solving, organization, and attention-to-detail skills.

• Honest and open communication, accountability, and willingness to ask questions.

• Ability to work independently while collaborating with the Financial Services team.

• Ability to accept feedback, adapt to changing priorities, and follow work through to completion.

• Basic proficiency with Microsoft Office and the ability to learn new financial systems.

• Availability to work 40 hours per week during Summer 2027 and follow RETTEW’s standard hybrid schedule in Lancaster.

Preferred

• Coursework in intermediate accounting, taxation, auditing, information systems, or data analytics.

• Experience using Microsoft Excel for calculations, data organization, or analysis.

• Interest in financial reporting, process improvement, automation, or AI-enabled efficiencies.

• Prior internship, campus organization, work, or project experience involving accounting or business operations.

Why RETTEW

At RETTEW, you'll gain practical accounting experience while contributing to work that matters. You will have the opportunity to:

• Learn how Financial Services supports a 100% employee-owned professional-services company.

• Gain exposure to accounting, audit, tax, budgeting, reporting, and analysis activities.

• Work directly with experienced professionals who can explain how classroom concepts are applied.

• Build experience with Deltek Vantagepoint, Microsoft applications, process documentation, and automation.

• Contribute ideas and complete meaningful work rather than only observing.

Work Environment

Workplace Designation: Hybrid

Location: Lancaster, PA

Schedule: 40 hours per week during Summer 2027

Compensation: $22–$24 per hour

This position follows RETTEW’s standard hybrid schedule, with three days in the Lancaster office and two remote-work days each week. The intern will work under the direct supervision of RETTEW’s Controller and collaborate with other Financial Services team members.

About RETTEW

RETTEW is a 100% employee-owned engineering consulting firm that has been helping clients solve complex challenges since 1969. Our multidisciplinary teams deliver practical solutions that strengthen infrastructure and support the communities we serve.

Our culture is grounded in our core values: Act Like an Owner, Value Relationships, and Exemplify Excellence. We empower our employee-owners to grow their careers while delivering meaningful results for our clients.

RETTEW is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, including pregnancy, sexual orientation or gender identity, national origin, age, disability, veteran status, genetic information, or any other characteristic protected by applicable law.

If you are an individual with a disability and require a reasonable accommodation to complete any part of the application process, please contact us at jperalta@rettew.com to request assistance.

#LI-Hybrid

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