Site Supervisor

About the role

At IEM, we’re not just building innovative electrical distribution systems, we’re shaping the future. After 75 years, we continue to push the boundaries of what’s possible, delivering world‑class solutions for complex power needs. IEM is seeking a Site Supervisor for our San Antonio location, reporting to the Construction Manager. The Site Supervisor will direct, administer, and manage the construction of commercial office spaces and manufacturing facilities, serving as the company’s principal representative on assigned projects. This position is temporary in NE San Antonio while a new manufacturing plant comes online, with a permanent location 25 minutes away in Brooks. The role is 100 % in‑office with no remote work.

Responsibilities

• Plan, manage, and execute construction projects from pre‑construction to project closeout.
• Coordinate with architects, engineers, consultants, subcontractors, and suppliers.
• Establish project requirements based on contract documents, considering cost, materials, safety, schedules, and appropriate methods.
• Monitor project cost, quality, and schedule.
• Provide guidance and leadership, coordinating subcontractor activities to ensure successful project completion, including managing changes in scope, costs, and schedules.
• Manage the project using short‑term schedules derived from the master schedule; prepare scheduling reports comparing master schedule with actual progress.
• Identify project risks and implement mitigation strategies.
• Meet weekly with subcontractors and vendors to coordinate scheduling, approve alternates, and address material changes or shortages.
• Maintain a daily report documenting weather conditions, construction progress, type of work performed, and other pertinent information such as delays.
• Maintain complete and up‑to‑date job files, including correspondence, contracts, budgets, and other documents throughout the project lifecycle.
• Accountable for overall project success measured by schedule adherence, subcontractor motivation, financial performance, team collaboration, and conflict resolution.
• Prepare and present project status reports to leadership.
• Perform other related duties as assigned.
• Oversee project documentation, including RFIs, submittals, inspections, and closeout documentation.
• Project manage all new facility/construction projects in San Antonio and Austin.
• Build and maintain strong client relationships.
• Supervise 6 to 15 subcontractors in daily construction activities for commercial office space and manufacturing facilities.
• Operate with a startup mindset—agile, resourceful, and willing to help wherever needed.

Qualifications

• 2‑year degree in Project Management or equivalent field experience.
• Extensive experience and knowledge of commercial construction, specifically commercial tenant improvements.
• Ability to apply innovative and effective management techniques to maximize subcontractor/employee performance.
• Proficient computer skills (Microsoft Office Suite).
• Thorough understanding of corporate and industry practices, processes, and standards and their impact on project activities.
• Superior communication and interpersonal skills (tact, diplomacy, influence, etc.).
• Demonstrated career ambition with a track record of growth and increasing responsibility; highly promotable with potential for broader leadership roles.

Why Join IEM

At IEM, you’ll join a team that powers some of the world’s most ambitious projects. We’re engineers, makers, and problem‑solvers who thrive on tackling complex challenges and delivering solutions that keep industries moving forward. If you’re driven, collaborative, and ready to make an impact, we’d love to hear from you. Your creativity and passion can help us achieve great things—come be part of the journey. Learn more about IEM at www.iemfg.com. We offer a comprehensive and competitive benefits package designed to support employees' well‑being, growth, and long‑term success.