Assistant Project Manager - Mechanical

Job Title: Assistant Project Manager Company: Loenbro, LLC Business Unit/Department: South - Mechanical/Structural Location: Leander, TX Reports to: Area Manager Employment Type: Full-Time FLSA Classification: Exempt About Loenbro Loenbro is a trusted, long-term construction lifecycle partner to thousands of customers across the U.S. Our market spans all industries and our service offerings include Critical Electrical, Mechanical & Structural, Soft Crafts, Inspection, Underground Maintenance and Installation, and Fabrication. Our expertise lies in simplifying the complex and establishing long-standing relationships with our partners. We have a national presence but a local approach—every customer benefits from our capabilities and our care. At Loenbro, we don’t just offer jobs—we build careers grounded in integrity, teamwork, excellence, and purpose. Join a team where your expertise is valued, your growth is supported, and your work helps maintain and enhance the critical infrastructure that powers communities across the nation. Job Summary The Assistant Project Manager supports the planning, coordination, and successful execution of commercial and industrial construction projects. Working closely with Project Managers, Superintendents, and field leadership, this role assists with project scheduling, cost tracking, procurement, subcontractor coordination, project documentation, and client communication to ensure projects are completed safely, on schedule, within budget, and according to quality standards. Success in this role is demonstrated by strong organizational skills, attention to detail, effective communication, proactive problem-solving, and the ability to coordinate multiple project activities simultaneously. Essential Job Responsibilities Assist Project Managers with the execution of large-scale commercial and industrial construction projects within the data center, power generation, renewables, mining, and oil & gas industries. Support project planning, scheduling, budgeting, forecasting, and reporting throughout all phases of the project lifecycle. Coordinate labor, equipment, materials, and subcontractor resources to promote efficient and cost-effective project execution. Monitor project schedules and assist in identifying and mitigating delays or project risks. Track project costs, production quantities, and progress to help ensure projects remain on budget and on schedule. Prepare and maintain project documentation including RFIs, submittals, purchase orders, change orders, meeting minutes, daily reports, and project correspondence. Assist with procurement activities, vendor coordination, material tracking, and equipment scheduling. Collaborate with field supervision to verify work is completed according to project specifications, quality standards, and contract requirements. Participate in project meetings and communicate updates with clients, subcontractors, vendors, and internal stakeholders. Assist with project closeout activities including punch lists, turnover documentation, warranties, and final project reporting. Support implementation and enforcement of company safety policies and environmental compliance requirements. Utilize project management, scheduling, and accounting software to maintain accurate project records and performance data. Foster positive working relationships with employees, customers, subcontractors, suppliers, and other Loenbro business units. Qualifications Required: Engineering or Construction Management Degree preferred. Experience working on large scale commercial or industrial projects, ideally with 10+ million USD value. Minimum of 2+ years of experience as a coordinator, project engineer, assistant project engineer, or similar within the Mechanical or Structural construction spaces. Preferred: Experience with HCSS Heavy Job or similar job costing program. Experience with P6 or similar scheduling software. Experience with Viewpoint or similar account software. Experience with…