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Internship- Colorado Projects

Thalle Construction Company
Colorado, CO Full Time
POSTED ON 4/8/2026
AVAILABLE BEFORE 6/8/2026

We are seeking a motivated and detail-oriented Intern to support our team with a variety of administrative and project-related tasks. This internship offers an opportunity to gain hands-on experience in a professional office environment while assisting multiple departments with day-to-day operations.

Thalle, established in 1947, is a heavy civil construction company with a corporate office located in Hillsborough, NC and a regional office in Alvarado, Texas. Thalle currently has active heavy civil construction projects spanning from New York to South Florida to Texas and continuing to expand our geographical footprint. Our diverse and expansive project scope of heavy civil infrastructure projects incorporates all degrees of civil construction that includes but is not limited to; Conventional Concrete, Roller Compacted Concrete and Earthen Dams, Navigational Waterway Locks, Reservoirs, Large Diameter Underground Utilities, Treatment Facilities, Landfills, Site Work, Mass Soil & Rock Excavation, Coal Ash Closures, DOT Highway & Bridge Construction, and on demand emergency services, etc.

We are a proud representative of The Tully Group (Tully) who was established in 1921 and developed into one of the nation’s largest privately held, family-owned construction firms. Tully’s corporate office, located in New York City, has provided an opportunity to develop and sustain a long history of heavy civil projects in the Metro New York Area and New Jersey. Visit www.tullygroup.us for more information.

Safety is our TOP priority! Thalle offers a competitive salary package with a full range of benefits, including Major Medical, Dental, Vision, Short and Long-Term Disability, generous PTO, paid company holidays, Life Insurance, and 401K with a company match, and more! Compensation is based on experience and qualifications.

Thalle is an Equal Opportunity Employer, E-Verify, and Drug Free Workplace.

Locations: Longmont

Key Responsibilities

  • Provide general clerical and administrative support to project teams and office staff.
  • Assist with data entry, document organization, and file management (digital and physical).
  • Assist project teams in the field and visit job sites to help gather information and support project activities. 
  • This role may require working outdoors for extended periods in varying weather conditions, including high heat.
  • Help maintain organized project documentation and office records.
  • Assist with onboarding paperwork and employee documentation as needed.
  • Communicate with internal teams to gather or verify information for administrative tasks.
  • Receive, sort, and distribute incoming mail and deliveries.
  • Answer and route incoming phone calls and emails as needed.
  • Assist with purchase orders, invoices, delivery tickets, or other basic project documentation.
  • Support office staff and management with special projects and general administrative duties.
  • Perform other duties as assigned.

Qualifications

  • Currently enrolled in or recently graduated from a college, university, or technical program preferred.
  • Strong attention to detail.
  • Excellent organizational and time management skills.
  • Ability to handle confidential information with professionalism.
  • Strong verbal and written communication skills.
  • Proficiency with Microsoft Office (Word, Excel, Outlook) or similar software.
  • Ability to work independently as well as part of a team.

What You’ll Gain

  • Hands-on experience in a professional office and field environment.
  • Exposure to project coordination and administrative operations.
  • Opportunity to develop organizational, communication, and technical skills.
  • Mentorship and experience working alongside experienced professionals.

Physical Requirements:

  • Ability to safely and successfully perform the essential job functions consistent with the ADA, FMLA and other federal, state and local standards, including meeting qualitative and/or quantitative productivity standards.
  • Ability to maintain regular, punctual attendance consistent with the ADA, FMLA and other federal, state and local standards Must be able to lift and carry up to 50 lbs.
  • Ability to work outdoors for extended periods in varying weather conditions, including high heat.
  • Must be able to talk, listen and speak clearly on telephone.
  • Must be able to follow directions
  • Must be able to communicate effectively

 

Salary.com Estimation for Internship- Colorado Projects in Colorado, CO
$75,484 to $95,992
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