Mechanical Engineer

Mechanical Engineer Fusion ICS Washington, DC Job Details Full-time $120,000 - $160,000 a year 1 hour ago Benefits Health savings account Paid holidays Health insurance 401(k) matching Qualifications Bachelor's degree in mechanical engineering CAD software Personal protective equipment (PPE) use Plumbing building codes Compliance with security regulations Revit Infrastructure engineering Local building codes Building information modeling (BIM) tools ASHRAE Standards Cross-functional communication Full Job Description About Fusion

ICS, LLC

Fusion is a Service‑Disabled Veteran‑Owned Small Business (SDVOB) specializing in mission‑critical engineering, secure infrastructure, and advanced technical solutions for federal and defense clients. We bring precision, integrity, and deep expertise to some of the nation's most complex and sensitive programs. Our team of highly skilled engineers and technical professionals is dedicated to advancing the future of secure facilities and infrastructure. When you join Fusion, you become part of a collaborative, mission‑focused organization that values technical excellence and a steadfast commitment to national security.

Position Summary:

Fusion seeks a detail-oriented Mechanical Engineer to support secure facility design and construction within the National Capital Region. The engineer will provide mechanical systems design, technical oversight, and construction phase support for classified and federal infrastructure projects. This position requires demonstrated experience in HVAC, plumbing, controls, and mechanical code compliance, with a strong emphasis on secure/mission-critical environments. Clearance Requirement Active Secret security clearance required; Top Secret clearance preferred. Candidates must be able to obtain and maintain any additional customer-required clearances or access authorizations.

Key Responsibilities:

Develop mechanical system designs, including HVAC, hydronic piping, ductwork, and plumbing, for secure federal facilities. Ensure systems comply with UFC, ASHRAE, IPC, DoD, and local building codes. Prepare or review detailed construction drawings and specifications. Perform load calculations, system sizing, and energy efficiency evaluations. Provide engineering review of contractor submittals, RFIs, and shop drawings. Conduct field inspections, oversee system installation, and support commissioning activities. Coordinate across disciplines (electrical, architectural, structural, civil) to support integrated designs. Participate in facility readiness reviews, design reviews, and construction phase meetings. Ensure secure handling of project documentation and data per

CUI/ICD-705

requirements.

Qualifications & Requirements:

Education & Experience:

Bachelor's degree in Mechanical Engineering from an ABET-accredited program. Minimum 5 years of mechanical engineering experience in facility or infrastructure projects. Experience with DoD construction projects, military facilities, or government contracting preferred.

Certifications & Technical Skills:

Expertise in mechanical codes, standards, and practices (ASHRAE, UFC, DoD, IPC). Strong proficiency with AutoCAD, Revit, and load calculation software (e.g., Trane Trace, HAP). Familiarity with SCIF and SAPF mechanical requirements. Excellent communication skills and ability to work onsite in active construction environments. Excellent communication and coordination skills. Ability to work safely on active construction sites and wear required PPE. PE (Professional Engineer) license or active EIT on track for licensure.

Preferred Qualifications:

Experience with chilled water, hot water, steam, or secure HVAC systems. Background in energy modeling and sustainable system design. Prior experience with commissioning, TAB, and performance verification in federal environments. Experience supporting DoD/NIC classified facilities and ICD/ICS compliance.

Work Conditions & Physical Requirements:

Ability to work in high-security environments requiring strict access controls and security protocols Mixed office and active construction-site environment Work in indoor and outdoor environments, including near high-voltage switchgear and substations Requires lifting/carrying up to 50 lbs, climbing ladders, and working in confined spaces Occasional travel to other sites or campuses as needed Position is fully onsite and may require night and/or weekend work depending on project scheduling and site demands. Why Work for Fusion? At Fusion, we believe exceptional work begins with exceptional people. Our teams bring together technical excellence, integrity, and a shared commitment to delivering mission‑critical solutions that directly support national security. Here, your expertise has real impact. You'll collaborate with experienced professionals, contribute to meaningful programs, and be part of a supportive small‑business culture invested in your growth and success. What We Offer Medical insurance with a generous employer HSA contribution 401(k) with company match and immediate vesting 15 days of vacation 5 days of sick leave 11 paid federal holidays A mission‑focused, supportive small‑business culture where your work makes a real impact Fusion

ICS, LLC

is an Equal Opportunity Employer. We consider all qualified applicants without regard to race, color, religion, sex, national origin, age, disability, veteran status, or any other protected characteristic.