Summer Internship Program


Join ACCO’s internship program for an opportunity to develop real-world skills. Experience what it’s like to work at the largest mechanical contractor in the Western United States. Help engineer and construct mechanical systems for high profile buildings that are changing the skylines of our cities using leading-edge technology. The ACCO Engineered Systems internship program will take you outside of the classroom and provide you with hands-on, professional experience. During a summer internship, you will learn how to apply what you have learned in your engineering classes to real-life situations and have fun while doing it! Each intern will see first-hand the many facets of ACCO’s business, assist on real projects, and experience how our employee-owners impact designs by providing the most cost-effective mechanical systems for their facilities.


ACCO Engineered Systems is the industry leader in Heating, Ventilation and Air Conditioning (HVAC).  We are a full service firm that does everything from building system design, manufacturing, installation, building automation and controls, and maintenance services for clients throughout California, Oregon, Nevada, Idaho, and Washington. ACCO serves markets as varied as data centers, pharmaceutical and clean laboratories, commercial high-rise buildings, manufacturing facilities, hospitals, entertainment venues, and sports arenas. We believe in supporting our entrepreneurial employees while delivering value and quality for our clients.


During Summer, ACCO Engineered Systems is looking for interns to work in our Northern California (San Leandro) and Southern California (Glendale and Costa Mesa) offices. Internship opportunities include design engineering and project management.


All ACCO Engineered Systems internship positions are full-time, paid positions. During your time with us, you’ll have the chance to network with a diverse group of people within our engineering and management teams, develop new skills, and learn about our business and industry during various training programs, job-site and shop tours, and after-work teambuilding activities (eg. bowling, ping pong, etc.). Interns will also have the opportunity to participate in ACCO employee and community service events. Upon successful completion of the program, interns will be considered for regular full-time, paid positions at ACCO.

Summer internships will run from May to September. Start and end dates are flexible to work around your school’s summer dates.


ACCO Engineered Systems is driven by the passion that our employee-owners have for providing quality services to our customers. We are looking for interns who are excited to help solve the challenges of a HVAC turn-key contractor in a fast-paced, ever-changing environment. Applicants should be in their sophomore, junior, or senior year of undergraduate coursework with a major in mechanical engineering, or construction management. We appreciate interns who are self-motivated, have strong writing skills, enjoy working with a variety of people, and are passionate about our vision.


To apply for an internship, please visit our careers page. You will need to complete an application online and upload a resume and cover letter detailing:

  • Your interest in interning at ACCO Engineered Systems
  • Why you think you would be a good fit for our internship program

ACCO is an Equal Opportunity Employer, M/F/Vet/Disability – this extends to the internship program, too.



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