Mission-Critical HVAC Engineer for Secure Facilities

Leidos; Springfield (VA); On-site; USD 87,000 - 157,000; Full time

Job summary

Leidos is seeking a Facilities Mechanical Engineer to support planning, design, and analysis of HVAC systems for secure, mission-critical facilities. The role emphasizes high-availability, energy-efficient, code-compliant solutions in 24/7 operations and coordination with multiple disciplines.

Qualified candidates will have a mechanical engineering degree, 4+ years of experience, and the ability to obtain/maintain a TS/SCI clearance with Polygraph.

Qualifications

• Bachelor's degree in Mechanical Engineering.
• 4+ years of relevant experience.
• Ability to obtain TS/SCI clearance.
• Experience with facilities HVAC equipment design, management, and support.
• Strong communication skills and ability to work across multidisciplinary teams.

Responsibilities

• Analyze the design and layout of HVAC systems for high-availability environments.
• Collaborate with electrical, architectural, and structural teams to deliver integrated solutions.
• Prepare and maintain construction drawings and specifications using AutoCAD, Revit MEP, or similar tools.
• Support system load calculations, energy modeling, and equipment sizing using Trace 700, HAP, or eQUEST.
• Participate in field surveys, site investigations, and facility condition assessments.
• Perform commissioning, testing, and balancing to ensure optimal system performance.
• Review submittals, respond to RFIs, and support construction administration activities.
• Ensure all designs meet applicable codes and standards (ASHRAE, NFPA, IBC, IMC, LEED).
• Maintain organized documentation including technical memos, reports, and as-built drawings.
• Manage Building Management Systems (BMS) for centralized control of HVAC, lighting, and life safety systems.

Skills

Mechanical design

Cross-functional collaboration

Documentation & reporting

Communication skills

Education

Bachelor's degree in Mechanical Engineering

Tools

AutoCAD

Revit MEP

Trace 700

HAP

eQUEST

Siemens Insight

Siemens Desigo

Tridium

Iginition

Job description

Leidos is seeking a Facilities Mechanical Engineer to support planning, design, and analysis of HVAC systems for secure, mission-critical facilities. The role emphasizes high-availability, energy-efficient, code-compliant solutions in 24/7 operations and coordination with multiple disciplines.

Qualified candidates will have a mechanical engineering degree, 4+ years of experience, and the ability to obtain/maintain a TS/SCI clearance with Polygraph.