Lead Mechanical Engineer – TS/SCI/Poly, Mission Tech

Mission Technologies, a division of HII; Alexandria (VA); On-site; USD 123,000 - 190,000; Full time

Benefits offered by this job

Best-in-class benefits

401(k) Savings Plan

Tuition reimbursement

Education scholarships

Paid holidays and PTO

Job summary

Mission Technologies, a division of HII, is seeking a Lead Mechanical Engineer in Alexandria, VA to lead the planning, design, and sustainment of high‑reliability mechanical systems for CONUS and OCONUS facilities.

You will guide multidisciplinary teams, develop drawings and specifications, perform analyses, and oversee installation, commissioning, and lifecycle improvements for mission‑critical HVAC and utility infrastructure supporting national security missions.

Qualifications

• Active US TS/SCI with Polygraph.
• Experience with mechanical CAD tools and hands‑on assembly.
• Ability to interpret drawings, specifications, calculations, and reports.
• Creativity and comfort with open‑ended problem solving.

Responsibilities

• Provide mechanical engineering support for mission‑critical facilities, HVAC systems, and utility infrastructure.
• Conduct mechanical analyses, feasibility studies, design reviews, and system evaluations.
• Develop and review engineering drawings, specifications, calculations, and technical documentation.
• Support installation, construction oversight, commissioning, troubleshooting, and sustainment of facility systems.
• Prepare documentation for assessments, commissioning, testing, and as‑built conditions.
• Contribute to lifecycle planning, modernization strategies, and reliability improvements for mechanical systems.

Skills

TS/SCI with Polygraph

Mechanical CAD tools

Interpret drawings

Creative problem solving

Education

Bachelor's degree

Master's degree

PhD/JD

Tools

Mechanical CAD tools

Job description

Mission Technologies, a division of HII, is seeking a Lead Mechanical Engineer in Alexandria, VA to lead the planning, design, and sustainment of high‑reliability mechanical systems for CONUS and OCONUS facilities.

You will guide multidisciplinary teams, develop drawings and specifications, perform analyses, and oversee installation, commissioning, and lifecycle improvements for mission‑critical HVAC and utility infrastructure supporting national security missions.