Commercial Building Engineer

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Full Time Bethesda, MD, Bethesda, MD, US

Salary Range: $60,000.00 To $80,000.00 Annually

At ISN
, we believe our people are the driving force behind our success. For more than 45 years, we've partnered with over 150 federal agencies to deliver innovative, mission-critical solutions that strengthen government mission and serve the public.

Recognized over 25 times by the Washington Business Journal as one of the 50 Fastest Growing Government Contractors and by the Inc. 5000 as one of the Fastest Growing Private Companies
, ISN continues to grow through exceptional service, innovation, and a commitment to excellence. We have earned more than 100 commendation letters from our customers recognizing our commitment to exceptional quality, timely delivery, and unwavering integrity. We take pride in our role as a trusted government partner, delivering innovative solutions that benefit society, strengthen national security, and support mission-critical operations.

At ISN, you'll find more than a job—you'll find an opportunity to build your career, collaborate with talented professionals, and make a meaningful impact supporting important federal missions. We foster a collaborative, inclusive culture where employees are encouraged to learn, grow, share ideas, and contribute to innovative solutions for our customers.

Whether you're just beginning your career or bringing years of experience, you'll join a team that values integrity, accountability, teamwork, and continuous improvement. If you're passionate about making a difference and delivering exceptional results, we'd love to have you on our team.

• Comprehensive Medical Coverage with Prescription Benefits
• Flexible Spending Accounts (FSA)
• Company-Paid Short-Term & Long-Term Disability
• Company-Paid Basic Life Insurance
• 401(k) Retirement Plan
• Paid Time Off beginning on your first day of employment
• Professional growth and leadership development opportunities

• Independently operate, monitor, maintain, and troubleshoot the building’s MEP, HVAC, alarm, security, and related building systems, including equipment serving the seven-story commercial facility and surrounding grounds.
• Perform and document daily preventive maintenance in accordance with established schedules, ensuring all equipment and systems operate safely and efficiently.
• Provide hands-on maintenance and troubleshooting of the building’s pneumatic HVAC system, including manual thermostats, compressed-air controls, and ceiling-mounted dampers.
  • Strong hands-on experience with pneumatic HVAC systems is required.
• Maintain and monitor major building equipment, including HVAC systems, cooling towers, generators, and associated mechanical equipment.
• Maintain accurate daily records of inspections, maintenance activities, repairs, and completed work, with documentation provided to the Director’s Office.
• Coordinate and oversee maintenance contracts and outside vendors, including obtaining quotes and coordinating services or materials as needed.
• Coordinate building projects and services such as painting, equipment moves, repairs, and other facility-related work.
• Work closely with vendors, contractors, building management, and tenants to address service requests and ensure timely resolution of building-related issues.
• Respond to tenant requests and building operational needs while maintaining a high standard of customer service and professionalism.
• Ensure building…