Mechanical Operations & Engineering Manager - Washington, DC

Overview

About M.C. Dean is Building Intelligence. We design, build, operate, and maintain cyber-physical solutions for the nation's most mission-critical facilities, secure environments, complex infrastructure, and global enterprises. With over 7,000 employees, our capabilities span electrical, electronic security, telecommunications, life safety, automation and controls, audiovisual, and IT systems. Headquarters in Tysons, Virginia, M.C. Dean delivers resilient, secure, and innovative power and technology solutions through engineering expertise and smart systems integration.

Our people are passionate about engineering innovation that improves lives and drives impactful change. Guided by our core values-agility, expertise, and trust-we foster a collaborative and forward-thinking work environment. At M.C. Dean, we are committed to building the next generation of technical leaders in electrical, engineering, and cybersecurity industries.

Clearance Requirement: Applicants selected will be subject to a government security investigation and must meet eligibility requirements, including U.S. Citizenship, for access to classified information; HSPD-12 & Secret Clearance required.

The Mechanical Operations & Engineering Manager serves as the site's lead mechanical subject matter expert (SME), responsible for ensuring the performance, reliability, and technical integrity of mechanical systems. This role supports mission-critical and facility operations through advanced troubleshooting, system optimization, and technical oversight of vendors across HVAC, chilled water, steam, and hydronic systems. Operating within established Work Control, Quality Control (QC), and standard operating frameworks, this position is execution-focused and reports directly to site leadership without independent program or operational authority.

Serve as the primary SME for chilled water systems, cooling towers, condenser water systems, steam and hydronic systems, and HVAC equipment including AHUs, FCUs, VAVs, and CRAH units. Evaluate system performance, identify deficiencies, and assess operational risks while supporting system stabilization and performance improvement efforts.

Lead the diagnosis of complex mechanical and controls-related issues, including chiller and cooling tower instability, hydronic flow imbalances, and BAS sequence misalignment. Develop and document root cause analyses, corrective actions, and preventative recommendations to improve system reliability.

Provide technical oversight of mechanical vendors and contractors by reviewing and validating proposals, scopes of work, field findings, and installation quality. Ensure all vendor activities align with site standards, specifications, and operational objectives.

Review and validate sequences of operation (SOO) for mechanical systems, identify discrepancies between design intent and actual performance, and coordinate with controls/BAS teams to optimize system functionality.

Analyze recurring failures and performance trends to recommend enhancements to preventative maintenance strategies, intervals, and scope. Support the development of reliabilitycentered maintenance practices and contribute to System Operational Risk Assessments (SORA), Facility Condition Index (FCI) evaluations, and spare parts/inventory strategies.

Provide technical guidance and mentorship to mechanical technicians, supporting field execution during major repairs, outages, and system transitions. Enhance overall team capability in troubleshooting and system operations. Develop training plans for HVAC/Mechanical team members. As our organization is evolving, this role may formally manage and supervise HVAC technicians, mechanics, and operating engineers.

Work within established site processes including Work Control, Quality Control (QC), and Standard Operating Procedures (SOPs), supporting leadership initiatives while maintaining an execution-focused role without independent operational authority.

This position reports directly to the Assistant Chief Engineer and operates as a technical resource within the site's organizational structure.

• Have an attitude of extreme ownership.
• Are highly motivated, proactive, and drive projects to completion.
• Thrive in challenging, dynamic environments with complex mechanical challenges.
• Take a systems approach to identifying and solving problems and root cause.
• Are motivated to implement standards and structure into an operational environment.
• Have expert level communication skills, and are able to convey complex issues and solutions to a wide range of peers, customers, and others.

• High School Diploma with Minimum
  10+…