Finance / Accounting Intern

Subsidiary: Sully Miller Holding Co.


Sully-Miller Contracting Co., the Colas USA subsidiary that operates throughout Southern California, is a company with nearly 100 years in the construction industry. Since 1923, Sully-Miller has become one of the premier construction contractors in Southern California, building much of the region’s infrastructure including airports, seaports, rail and intermodal, military/federal, roads, highways, and specialty projects. To learn more about Sully-Miller Contracting Co. visit  

Throughout Colas USA, we provide competitive pay, outstanding benefits, career advancement opportunities, professional education, and extensive training for every employee. We pride ourselves on upholding the highest standards of safety, environmental conservation, and ethical conduct as we strive to grow our infrastructure products and services through empowering and developing our people, fostering innovation, utilizing new technology, and maximizing vertical integration at all levels of the company’s value chain. To learn more about the Colas USA Family of Companies, please visit

Sully-Miller Contracting Co., and the rest of the Colas USA Family of Companies, is part of the Colas Group, the worldwide leader in transportation infrastructure construction and maintenance. For information on our international network visit


Job Summary


Under direct supervision, assists the Accounting/Finance team in carrying out various accounting programs and procedures as part of the company’s internship program.

Sully-Miller’s internship program is designed to provide first-hand exposure to industry operations, as well as 1:1 mentorship and networking opportunities to students in order to supplement college educational programs in the areas of business, engineering, and construction management.  Students in the program will have the opportunity to be a part of Sully-Miller’s intern class of 2023, which will include shared classes, jobsite visits and celebrations with interns from multiple departments of our organization. They will contribute to company goals through completion of focused project work, and apply concepts learned in the classroom to business operations.


Main Responsibilities


As part of the internship program, the accounting intern will gain exposure to financial, accounting, and business processes, including, but not limited to:

  • Embrace the Company’s safety culture, and actively support all safety initiatives.
  • Support, promote, and practice the Company core values, vision, and mission; follow code of ethics, workplace conduct, safety, and other established policies 
  • Assist with month end and quarterly closings, financial reporting, and budgeting
  • Assist with accounts receivable, payable, and bank statement reconciliations
  • Assist with Balance Sheet reconciliations
  • Perform data entry into accounting systems such as JD Edwards, Citrix/HeavyJob, ADRA, and OnBase
  • Run & Create Financial Reports
  • Participate in various Special Projects as directed by the Controllers, Payroll Manager or CFO.
  • Assist the Accounting department with other general accounting functions 



Current enrollment in a relevant degree program, including accounting, finance, or business administration 



  • Proficiency in MS Word, Excel, and PowerPoint preferred
  • A basic understanding of Accounting principles
  • Excellent Communication skills
  • The ability to work well with all levels of the organization
  • A mindset for making continuous improvements of department processes

Colas Inc. and its subsidiaries are an Equal Opportunity Employer. For details on the specifics of this commitment, please click here to view the EEO document.  If you are an individual with a disability and require a reasonable accommodation to:

  • to meet the requirements of the role in which you are applying
  • complete any part of the application process
  • access or use the online application process and need an alternative method for applying

Please contact Colas Inc. at 973-290-9082 or send an email to

Nearest Major Market: Orange County
Nearest Secondary Market: Los Angeles