Commissioning Construction Administrative Assistant

Haag, a Salas O'Brien Company

11h•Onsite

About The Position

At Salas O’Brien we tell our clients that we’re engineered for impact. This passion for making a difference applies just as much to our team as it does to our projects. That’s why we’re committed to living our values every day: inspiring, achieving, and connecting as shared owners of our success with a focus on a sustainable future. Building for the long-term means that all of our team members can expect to work on amazing projects with a people-first approach to problem solving. It also means that each member of our team has truly limitless potential to build a unique, meaningful, and high-impact career—and they’ll receive great total rewards along the way. Impact Cx is a Certified Commissioning Firm and a specialized subsidiary of Salas O’Brien, built around one core belief: Exceptional People. Exceptional Outcomes. For more than 25 years, we’ve delivered hands‑on commissioning services that ensure buildings and mission‑critical infrastructure perform safely, reliably, and exactly as intended. As systems grow more complex, our work matters more than ever—and we take pride in doing it the right way. What truly sets us apart is our culture. We lead with integrity, respect, teamwork, and a growth mindset. We value healthy conflict, direct communication, and accountability because these behaviors make us stronger as a team and better for our clients. At Impact Cx, you’re never “just a number.” You’re part of a high‑trust environment where your voice matters, your expertise is respected, and your development is taken seriously. Our team supports commissioning projects across mission critical, data center, healthcare, life sciences, higher education, industrial, aviation, and commercial markets. Whether you’re working hands‑on with complex systems, improving quality, supporting clients, or contributing to operational excellence, you’ll collaborate with industry‑leading professionals committed to delivering the highest standards of performance. As part of the Salas O’Brien family, Impact Cx blends the agility of a focused commissioning group with the resources, multidisciplinary expertise, and career opportunities of a multi‑national engineering firm. We invest heavily in training, mentorship, certification support, and clear career pathways so you always understand where you can grow and how to get there. If you’re looking for a place where you can make a real impact, grow your career, and contribute to meaningful work, Impact Cx is where you can build your future. The Construction Administrative Assistant provides full-time, onsite administrative and coordination support for a large construction and commissioning project. This role is responsible for day-to-day administrative activities at the jobsite, supporting project managers, commissioning staff, and construction leadership to ensure documentation, communication, and workflows are organized, accurate, and timely. This position requires a high degree of organization, professionalism, and consistency. The Construction Administrative Assistant does not make independent project decisions but plays a critical role in keeping the project team aligned, informed, and supported.

Requirements

3–5 years of administrative experience, preferably in construction, engineering, or project-based environments.
Strong proficiency in Microsoft Office (Excel, Word, PowerPoint, Outlook).
Excellent organizational skills and attention to detail.
Ability to manage multiple priorities in a fast-paced, onsite environment.
Clear, professional written and verbal communication skills.
High level of reliability, discretion, and professionalism.
Ability and willingness to work onsite every day at the project location.

Responsibilities

Serve as the primary onsite administrative point of contact for the construction and commissioning teams.
Maintain daily presence onsite to support project operations and coordination.
Manage calendars, meetings, and conference room logistics for onsite teams.
Prepare, format, and distribute project correspondence, reports, and presentations.
Provide general administrative support to project managers and field leadership.
Manage and organize project documentation, including meeting minutes, logs, trackers, and reports.
Assist with preparation and formatting of project deliverables using Microsoft Word, Excel, and PowerPoint.
Maintain accurate filing systems (digital and physical) for construction and commissioning records.
Track and follow up on action items, approvals, and required documentation.
Coordinate communication between onsite teams, remote stakeholders, and client representatives.
Assist with scheduling meetings, site visits, and inspections.
Support onboarding activities for new onsite personnel (badging, access, orientation coordination).
Support ordering and tracking of office supplies, PPE, and site materials as directed.
Assist with timekeeping, expense tracking, and basic administrative reporting.
Support special projects and administrative tasks as assigned by project leadership.