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Project Administrator

Amstar, Inc.
San Antonio, TX Full Time
POSTED ON 1/1/2026
AVAILABLE BEFORE 3/30/2026
Job Title: Project Administrator
Company: Amstar, Inc.
Location: San Antonio, Texas

About Us: Amstar, Inc. is a leading construction company committed to delivering high-quality commercial construction projects across Texas, New Mexico, Arkansas, Louisiana, and Oklahoma. With a strong reputation for excellence and a dedication to safety, we take pride in our work and value our employees as the foundation of our success.

Job Summary:
The Project Administrator supports construction project teams by managing documentation, coordinating project activities, and maintaining communication between internal departments, subcontractors, vendors, and clients. This role ensures the administrative side of each project runs smoothly from start to finish.

Key Responsibilities:
  • Communicates with the following regarding various aspects of projects, Project Managers, Superintendents, subcontractors, clients and bonding agent.
  • Establish and maintain up-to-date project files to include issuing, tracking and recording project documentation, i.e. subcontracts, sub change orders, prime change orders, correspondence.
  • Ensure compliance with company policies and project requirements.
  • Communicate with subcontractors and suppliers to coordinate required documents and deliverables.
  • Assist in the timely preparation and execution of accounts receivable to the client including supporting documentation, i.e. certified payroll, HUB report as needed.
  • Responsible for accurate tracking of Accounts Receivable in ‘Monday’ and payment status updates status with the client.
  • Responsible for the timely recording in Sage Intacct of subcontract pay app and payment to the subs.
  • Assist with close-out documentation.
  • Maintain accurate budgets in Sage Intacct.
  • Assist at month end with WIP analysis.
  • Other duties as may be required.

Qualifications:
  • Prior experience in construction or project administration preferred.
  • Strong organizational and time-management skills.
  • Proficient in Microsoft Office (Word, Excel, Outlook)
  • Experience in Sage Intacct, City of San Antonio Primelink and LCP Tracker is a plus
  • Excellent written and verbal communication skills.
  • Ability to work independently and as part of a team.
  • Attention to detail and ability to manage multiple tasks in a fast-paced environment.
  • Able to work M-F 8:00 - 5:00 in an office environment.

Note- Hourly position range 21.64-26.44   On-site position.  No flex hours.

Benefits:
Competitive salary.
Comprehensive benefits package, including health, dental, and retirement plans.
Opportunities for professional development and growth.
A supportive and collaborative work environment.

How to Apply:
Interested candidates are invited to apply online or submit their resume, cover letter, and references to careers@amstarincgc.com. Please include "Project Administrator” - [Your Name]" in the subject line. Applications will be accepted until the position is filled.
Amstar, Inc. is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We thank all applicants for their interest; however, only those selected for an interview will be contacted.

Note: This job summary is intended to provide a general overview of the responsibilities and qualifications required for the role of Project Cost Control Manager at Amstar, Inc. Actual responsibilities and qualifications may vary based on the specific needs of Amstar, Inc., and/or the nature of our construction projects.

Salary : $22 - $26

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