Building Automation Systems (BAS) Engineer

Amentum is seeking a knowledgeable and skilled Building Automation Systems (BAS) Engineer to support facility operations in the Washington, DC area. This role is responsible for the maintenance, optimization, and continuous improvement of the building automation systems that control and monitor mechanical, electrical, and plumbing systems, including HVAC, lighting, energy management, and related infrastructure.

The BAS Engineer plays a critical role in ensuring system reliability, occupant comfort, operational efficiency, and compliance with Department of State (DOS) standards. This position also manages all BAS-related service contracts, repairs, and projects, ensuring proper oversight and timely execution.
Key Responsibilities

• Maintain, troubleshoot, and optimize building automation systems (BAS) to ensure efficient control of mechanical, electrical, and plumbing systems.
• Oversee BAS-controlled HVAC, lighting, energy management, and environmental monitoring systems.
• Manage and track all BAS service contracts, vendor work, upgrades, and repair projects.
• Monitor system performance and implement adjustments to improve energy efficiency and occupant comfort.
• Coordinate system upgrades, expansions, and enhancements in alignment with facility requirements and DOS guidelines.
• Perform regular inspections, testing, calibration, and preventive maintenance of BAS components.
• Analyze building data to identify inefficiencies and recommend corrective actions.
• Collaborate with facility managers, mechanical engineers, and operations teams to support mission-critical building performance.
• Maintain accurate documentation of BAS architecture, equipment, configurations, and system changes.
• Ensure adherence to safety protocols, industry standards, and applicable federal regulations.

Required Qualifications

• Bachelor of Science Degree
• Must be manufacturer-trained on the Building Automation System(s) installed.
• Certifications such as CEM, CET, or manufacturer-specific BAS training.
• Strong technical background in BAS, building systems, HVAC controls, or related engineering fields.
• At least 10 years of experience working with major BAS platforms (e.g., Johnson Controls, Siemens, Honeywell, Trane, Schneider, etc.).
• Ability to troubleshoot complex mechanical and control system issues.
• Familiarity with energy management principles, control theory, and system optimization.
• Experience managing service contracts or coordinating vendor-performed work.
• Ability to interpret wiring diagrams, control schematics, mechanical drawings, and system documentation.
• Strong analytical, organizational, and communication skills.
• Ability to obtain and maintain required TS/SCI clearances.

Preferred Qualifications

• Experience supporting government, secure, or mission-critical facilities.
• Background working in the Department of State (DOS) environments or similar federal agency settings.
• Knowledge of BACnet, Modbus, LonWorks, or other control communication protocols.

Compensation Details:
$250,000-$300,000

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. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters .