Launch Your Career at Guernsey
At Guernsey, interns aren’t just observers—you’re contributors. You’ll work on real projects, gain mentorship from experienced professionals, and have a voice in shaping the future of communities, infrastructure, and design.
Founded in 1928 in Cherokee, Oklahoma, Guernsey has been building what matters for nearly a century—starting in rural Oklahoma and now enhancing infrastructure across five continents. Today, we’re 100% employee‑owned and designing the future from the ground up—like Oklahoma’s first multi‑story mass timber office building, our new HQ in OKC’s walkable Alley North district.
- Performance under constraint
- Integrated architecture and engineering
- Operational clarity from the outset
- Long-term asset value
Summer interns from across the nation gain real-world experience in their chosen field..
At-A-Glance
- Founded: 1928 (Cherokee, OK)
- Ownership: 100% Employee‑Owned
- Global Impact: Projects across five continents
- Innovation: OK’s first multi‑story mass timber HQ (Alley North)
Internships
- Commitment: Full-time, 10-12 week summer program with immersive project experience
- Scope: Opportunities across Architecture, Engineering, Interior Design, Transportation, Electric Utility Management, and Electric Utility Optimization
- Participants: Cohort of 10-12 interns annually across multiple disciplines
- Reach: Recruited from universities across Oklahoma and the U.S.
- Outcome: Hands-on experience that builds portfolios, professional references, and career-ready skills
Our Culture
“At Guernsey, our people aren’t part of the story—they are the story. Every idea sparked, every solution delivered, every relationship built begins with our employees.” – Jared Stigge, President
What We Do
From designing iconic civic buildings to advancing energy resilience, safeguarding data, and planning the future of transportation, Guernsey’s multidisciplinary teams solve real‑world challenges every day.
Why You’ll Love Interning Here
- A culture built on teamwork and growth
- Opportunities for hands‑on work on game‑changing projects
- A collaborative environment that values your ideas
- Exposure to multiple disciplines
What You’ll Gain
- Exposure to diverse projects in engineering, architecture, consulting, and energy
- Development of leadership, management, and organizational skills
- Mentorship and guidance from experienced professionals
- A collaborative environment that values fresh perspectives
What Our Interns Say
“One of the most exciting experiences of my life. We had the opportunity to apply our designs and see them in the real world.”
— Summer 2025 Electrical Engineering Intern
“My favorite part of my internship was collaborating with the other disciplines on a project.”
— Summer 2025 Interior Design Intern
“I learned early on that everyone is so kind…They are very good at helping you understand so you know what you are doing.”
— Summer 2025 Structural Engineering Intern
“It’s been really exciting being around the world of architecture and hearing about it all day.”
— Summer 2025 Architectural Intern
“My favorite opportunity was to go out to the field with a seasoned professional and hear their perspective on the project and what they’ve learned through the years.”
— Summer 2025 Power Engineering Intern
From first-day curiosity to final presentation: our interns work alongside experienced mentors to solve real problems, then step up to present results that matter. The experience goes beyond the project—shared wins, collaboration, and time together at Guernsey’s annual meeting make the summer count.
Start Where Your Work Matters
Join a team that trusts interns with real projects, real responsibility, and real results. Apply now and take ownership of your first project this summer.
Apply Today!