Senior Construction Manager

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.

We are seeking a Senior Construction Manager who can lead on-site field construction execution for complex, secure, high-hazard federal facility programs from mobilization through substantial completion. We are currently working on projects and have openings available to support the modernization of Department of Energy and National Nuclear Security Administration facilities contributing to the mission of defending the United States and supporting the nation's nuclear security enterprise.

Job Summary:

The Senior Construction Manager serves as the primary on-site field authority for schedule, cost, and subcontractor coordination on complex, secure, high-hazard facility construction programs, with particular emphasis on projects requiring dual compliance with security construction standards (e.g., ICD 705) and hazardous occupancy classification requirements (e.g., IBC H-2). The position's responsibilities primarily focus on directing day-to-day field execution — sequencing work by functional zone, coordinating subcontractor and specialty-trade activities, and managing the interface between design intent and field conditions — from mobilization through substantial completion.

This role requires close, structured coordination with dedicated safety and quality functions (Site Safety and Health Officer, Contract Quality Control Manager) that operate independently of the Construction Manager's schedule and cost responsibilities, and with continuous Engineering Services During Construction (ESDC) support across all design disciplines. Qualified candidates will meet with subcontractors, the project's safety and quality teams, design engineers, and client program stakeholders daily to resolve field issues, maintain schedule, and ensure the project is executed safely and in conformance with the construction-ready design.

The project clientele includes Federal Government (DOE/NNSA), Department of Defense, national laboratory-adjacent programs, and other complex institutional and industrial facilities.

Duties and Responsibilities:

• Direct day-to-day field construction execution, sequencing work by functional zone to manage the risks of building secure, high-hazard spaces within an existing or newly constructed shell.
• Coordinate and manage subcontractor and specialty-trade activities, including scheduling, submittal review, and progress tracking.
• Manage the interface between building shell conditions and process/security buildout scope, confirming as-built conditions match the assumptions carried in the construction-ready design.
• Coordinate personnel security clearance timing for construction workforce requiring access to areas handling classified specifications or material, treating clearance timing as an explicit sequencing constraint.
• Work in close, structured coordination with the Site Safety and Health Officer and Contract Quality Control Manager, respecting their independent authority to stop work or hold inspection points without requiring Construction Manager concurrence.
• Coordinate with Engineering Services During Construction (ESDC) personnel…