Jump-Start Your Career with Mark Thomas
Our 2026 Internship Program is enrolling now! Learn more about our program and apply.
Internship Benefits
Internships offer invaluable opportunities for personal and professional growth, providing hands-on experience in a real-world work environment. Interns and new graduates at Mark Thomas work directly on projects from day one, applying theoretical knowledge gained in the classroom to practical situations, enhancing your problem-solving skills and technical knowledge. Internships also help build soft skills, such as communication, problem-solving, and time management. You will get to work and network directly with experienced technical professionals, helping build your network before entering the workforce full-time.
Many of our interns return year after year and/or are offered full-time positions ahead of graduation. Through our internship program, new graduates enter the workforce with an in-depth understanding of the industry and improved technical skills.
Recent/Upcoming Graduates
If you don’t join Mark Thomas through our internship program, we offer a dedicated onboarding and training process for new graduates, designed to support your success. Our entry-level learning paths include structured online courses that equip you with the tools to hit the ground running and grow in your role. You’ll also receive hands-on training from peers, supervisors, and senior technical staff. In addition, we offer monthly live training sessions, open to all team members, covering a wide range of technical and professional development topics.
Met Us at a Career Fair?
Did you have the chance to connect with one of our representatives at a recent career fair or event? We’d love to learn more about you. Please take a moment to fill out our interest form so we can stay in touch and keep you informed about upcoming internship opportunities.
Types of Opportunities & Roles
- Transportation engineering
- Structures engineering
- Transportation planning
- Landscape architecture
- Land surveying
- Construction management & inspection
- Sanitary sewer engineering
Our interns make a big difference in the work we do, and learn a ton along the way. Hear what some of them have to say.
“Interning at Mark Thomas has been such a rich learning experience because of all the awesome people here who are ready and always willing to help with any questions I have. I also think that it’s pretty cool that I have the ability to learn and dive deeper into any specific topic.”
“During my time as an intern for Mark Thomas, I had the opportunity to work closely with experienced professionals and gained valuable insights into the industry. I learned how to apply theoretical knowledge to real-world projects, and discovered the importance of teamwork in delivering successful outcomes.”
“My time at Mark Thomas has been nothing short of spectacular. I have been learning more than I ever thought I would, and it's truly been amazing. I can't wait to learn more and grow as an engineer in the making. I am glad I made the choice to start with Mark Thomas, where I feel valued more than I ever have been.”
“Interning here at Mark Thomas has been such a great learning experience. From friendly and welcoming staff, to a very balanced work environment. Everyone seems to be very involved and wants to keep others involved as well. If you ever have any questions, everyone in your department or even in the office is willing to help even if they are busy.”
“Mark Thomas provides a fulfilling, engaging experience, that teaches you so much more about the world of transportation than a classroom ever could. The focus on collaboration, respect, and transparency, along with the amazing and talented people that I get to work with every single day, make this internship worth the time, effort, and opportunity.”
Recruitment Calendar
| School/Job Fair | Event | Date |
|---|---|---|
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Join us at the Cal Poly Pomona ITE x WTS Career Fair on November 16th. |
9.16.2026 |
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Lyles College of Engineering Welcome Back BBQ and Industry Expo Join the Lyles College of Engineering for its 19th annual Welcome Back BBQ and Industry Expo! New and returning engineering, construction management and architectural studies students will have the opportunity to meet representatives from over 70 Valley businesses who are recruiting for all majors within the Lyles College! Students are encouraged to bring their resumes to share with companies. |
9.23.2026 |
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Cal Poly Pomona 2026 Geomatics Conference This year’s conference will offer students, professionals, and educators the opportunity to connect, collaborate, and gain valuable insights into: Surveying practices for land development projects |
10.1.2026 |
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California Baptist University 2026 Engineering Career and Internship Fair Students and alumni, RSVP for these events on Handshake. Check the events page on Handshake frequently to see an updated list of employers attending and the jobs they are hiring for. Come prepared to Career Fairs by following this guide. |
10.7.2026 |
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UC Davis 13th Annual Civil Engineering Career Fair |
10.16.2026 |
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ASCE UCI Fall 2026 Civil and Environmental Career & Internship Fair The UCI Annual Civil & Environmental Engineering Career Fair is back on Tuesday, October 20th, 2026 at the UCI Student Center! ASCE UCI is hosting its Annual Fall Civil and Environmental Engineering Career Fair in person on Tuesday, October 20th, 2026 from 10:00 am to 4:00 pm (Lunch is provided to representatives from 12:00PM-1:00PM and room will be closed from students). It will be hosted at UCI Student Center (Pacific Ballroom A-D). Please join us for this wonderful opportunity to network with industry professionals and the next generation of Civil & Environmental engineers from UCI! |
10.20.2026 |
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Annual CSULB Civil Engineering United Career & Internship Fair |
10.21.2026 |
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The Fall 2026 In-Person Engineering and Computer Science Career Fair will take place on November 6th from 9 AM – 2 PM in the University Union Ballroom at Sac State. This is a chance to meet in-person with employers and secure a job. It’s important to see what companies/employers are coming ahead of the event so you can be prepared with research about the company and ask the right questions on the day of the ECS Career Fair. Make sure to dress appropriately and bring your resume! |
11.6.2026 |
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Join us at the 2026 Cal Poly San Luis Obispo Civil & Environmental Engineering Career Fair. Learn more. |
11.13.2026 |