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CCcriticalsystemsllc.com logo

criticalsystemsllc.com

Rockville, Maryland

Controls Engineer.

FULL TIMEENGINEERING

Job Summary:

The Controls Engineer will support the design, programming, commissioning, and maintenance of Building Automation Systems (BAS) and HVAC control systems for commercial, industrial, and mission-critical facilities. The Controls Engineer will have hands-on experience with Delta Controls, Johnson Controls (JCI), Niagara Framework, and other BAS platforms, along with a strong understanding of HVAC systems, control sequences, and system integration.

The Controls Engineer will work closely with project managers, customers, contractors, and internal teams to deliver high-quality control solutions from project conception through commissioning and ongoing support.

Duties and Responsibilities:

  • Design and develop Building Automation System (BAS) control solutions for HVAC systems.
  • Program, configure, and commission control systems utilizing Delta Controls, Johnson Controls (JCI), and Niagara Framework platforms.
  • Develop and implement control sequences, graphics, alarms, trends, and system integrations.
  • Review project plans, specifications, and sequence-of-operation documents to ensure proper system design and implementation.
  • Perform point-to-point verification, startup, commissioning, and functional performance testing of control systems.
  • Troubleshoot hardware, software, communication networks, and field devices to resolve system issues.
  • Integrate HVAC equipment including air handling units, chillers, boilers, VAV systems, pumps, cooling towers, and energy management systems.
  • Collaborate with customers, consulting engineers, contractors, and vendors throughout the project lifecycle.
  • Provide technical support during installation, startup, and warranty periods.
  • Maintain accurate project documentation, programming backups, commissioning reports, and as-built documentation.
  • Support project scheduling and coordinate field activities to ensure projects are completed on time and within budget.
  • Participate in customer training and turnover meetings.
  • Stay current with industry standards, emerging technologies, and BAS platform enhancements.

Required Qualification:

  • Bachelor's degree in Mechanical Engineering, Electrical Engineering, Controls Engineering, Computer Engineering, or a related technical field preferred.
  • Equivalent combination of education and relevant industry experience may be considered.
  • Minimum of 3 years of experience in HVAC controls, building automation, or controls engineering.
  • Experience with:
    • Delta Controls
    • Johnson Controls (JCI)
    • Niagara Framework (N4)
    • BACnet and Modbus communication protocols
    • HVAC control systems and sequences of operation
  • Experience with commissioning, startup, and troubleshooting of BAS systems.
  • Ability to read and interpret mechanical drawings, electrical schematics, and construction documents.
  • Proficiency with Microsoft Office applications.
  • Excellent analytical, troubleshooting, and problem-solving skills.
  • Strong written and verbal communication skills.


Preferred Qualifications:

  • Niagara N4 Certification
  • Delta Controls Certification
  • Johnson Controls Metasys experience
  • Experience with data centers, healthcare facilities, laboratories, or mission-critical environments
  • Knowledge of energy management and system optimization strategies

 

Benefits at Critical Systems LLC:

  • Medical, Dental, and Vision Insurance
  • 401(k)
  • Generous Paid Time Off (PTO)
  • Competitive salary with performance-based incentives
  • Opportunities for professional development and continuous learning
  • Collaborative, growth-oriented team culture
  • Employee Assistance Program

 

Critical Systems LLC is an Equal Opportunity Employer

Pay
Not stated
Where
Rockville, Maryland
Work
Not stated
Type
Full time
Posted
4 Sep, 2026
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