Engineer-First Class Security Clearance

Position: Engineer-First Class with Security Clearance
Amentum is seeking an experienced and licensed Engineer - 1st Class to support facility operations in the Washington, DC area. This senior-level stationary engineering role is responsible for the safe and efficient operation, maintenance, and repair of complex mechanical systems, including boilers, HVAC units, chillers, pumps, and electrical equipment. As the most senior engineering professional within the facility, the Engineer - 1st Class operates with a high degree of autonomy, provides technical leadership, ensures compliance with regulatory standards, and oversees junior engineering staff.

Key Responsibilities
* Operate, maintain, and repair complex building systems, including boilers, HVAC systems, mechanical equipment, and electrical components.
* Conduct advanced troubleshooting and diagnostics on a wide range of mechanical and electro-mechanical systems.
* Perform scheduled preventive maintenance and corrective repairs to ensure safe and reliable operations.
* Ensure strict adherence to safety regulations, operational protocols, and all applicable federal, state, and local codes.
* Maintain operational logs, inspection records, and system documentation.
* Respond to emergency situations, system alarms, and equipment failures with urgency and expertise.
* Provide guidance, mentorship, and oversight to junior engineers and maintenance personnel.
* Collaborate with facility managers, contractors, and project teams on upgrades, repairs, or capital improvements.
* Ensure optimal system performance to support mission-critical facility operations.

Required Qualifications
* Valid First Class Engineer License in MD or DC.
* Active Secret Clearance
* 7-10 years of experience operating and maintaining boilers, HVAC systems, and mechanical/electrical equipment.
* Strong knowledge of building safety codes, environmental regulations, and industry best practices.
* Proven ability to perform complex troubleshooting across multiple trades.
* Ability to read and interpret technical manuals, blueprints, and equipment schematics.
* Demonstrated ability to work independently and make critical operational decisions.

Preferred Qualifications
* Experience working within high-security, mission-critical, or government facilities.
* Knowledge of energy management practices and building automation systems.
* Previous supervisory or lead engineering experience. Compensation Details:
$109,000-$115,000 The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws. Benefits Overview:
Our health and welfare benefits are designed to support you and your priorities. Offerings include:
* Health, dental, and vision insurance
* Paid time off and holidays
* Retirement benefits (including 401(k) matching)
* Educational reimbursement
* Parental leave
* Employee stock purchase plan
* Tax-saving options
* Disability and life insurance
* Pet insurance

Note:

Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits. Original Posting:
02/10/2026 - Until Filled
Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs. Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed, marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law.

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