Building Systems Technician II

The Johns Hopkins University Applied Physics Laboratory (APL), a national leader in scientific research and development, is located midway between Baltimore and Washington, DC.

Job Summary:

The Building Systems Technician will install, maintain, repair, monitor and modify building automation system (BAS) elements. The incumbent utilizes application software and hardware to monitor environmental conditions, operating schedules and energy consumption, determines optimal points to monitor and control subsystems, and applies knowledge of building systems, HVAC/R, ASHRAE and other related guidelines. The Building Systems Technician II is skilled in troubleshooting mechanical and HVAC controls. The incumbent creates, modifies and documents software programs to ensure proper control and operation of building systems and consults wiring diagrams, engineering drawings, schematics, O&M manuals and ASHRAE codes.

The Building Systems technician II has some discretion in the work they perform, assessing jobs against various standards, and is expected to consult with and work under the direction of a senior technician or supervisor in emergency or unusual circumstances, or when servicing more complex machinery or systems. The incumbent typically carries out assignments under minimal supervision and all work must comply with the rules, regulations, and guidelines of various codes, including ASHRAE and the National Energy Code.

Duties (Listed in order of importance with the estimated amount of time spent at each task):

  • Maintain, monitor and modify BAS elements to optimize building system operations. Program, install and maintain HVAC and mechanical control system operations and monitor influences on the system that may affect operational efficiency. Develop operating programs, determine parameters to be monitored, identify optimal monitoring/input devices and appropriate device locations in the system. Participate in commissioning new and renovated systems to ensure design intent is achieved.(30%)
  • Troubleshoot and repair digital and pneumatic controls for building automation system components using existing documentation and create new control circuits and drawings when necessary. Respond to operational outages arising from mechanical and control problems. Install and configure application specific controllers which includes mapping of field input and output devices. (30%)
  • Modify pre-programmed system control routines (e.g., stopping nonessential equipment, longer or shorter run times, earlier or later start-up or shut-down of system) to meet changing requirements. Respond to special requirements for system modifications to meet operational needs. Participate in Indoor Air Quality monitoring and related surveys. (15%)
  • Determine the compatibility of electrical, electronic, mechanical, and pneumatic devices (e.g., temperature sensors, flow switches, power supplies, cables, smoke detectors, interface modules, manual pull stations) with existing automatic temperature control, automated facilities management, and fire alarm systems. (15%)
  • Maintain and update database, diagrams, prints, drawings, and schematics of system expansions and modifications. Provide informal training in the daily functions and operations of automatic temperature control and energy management programs. (10%)

Note: This job summary and listing of duties is for the purpose of describing the position and its essential functions at time of hire and may change over time.Required Qualifications:

  • A high school diploma or equivalent, or the math and language skill set equivalent to that of a high school graduate.
  • Candidates must have skills and knowledge normally associated with completion of a formal on-the-job training program and/or at least four years of experience in HVAC/R, Stationary Engineering, or related discipline applicable to the Building Systems Technician position.
  • A skill set commensurate with journeyman level work in automatic temperature control and energy management is required.
  • Working knowledge of computer and microcomputer hardware and software used in building automation systems or formal training or experience in the configuration and programming of Programmable Logic Controllers or experience programming in an interpreted or a compiled programming language such as BASIC, C, ,JAVA, LISP or Python or scripted languages such as JavaScript, PHP or VBScript.
  • Use of trade tools and testing and measuring devices to troubleshoot a wide range of mechanical and controls problems.
  • Ability to read blueprints, sketches, O&M Manuals, and diagrams; interpret oral instructions to install and troubleshoot required work.
  • Must possess trade-related math skills appropriate for this level of work and effective written and verbal communication skills.
  • Ability to work effectively, either independently or in a team environment in both routine and emergency situations.
  • Possess a working knowledge of personal computers and basic applications. Demonstrated proficiency in use of Microsoft Office applications.
  • A valid state-of-residence driver's license is required. Applicants will be subject to a driving record evaluation and background investigation.

Desired Qualifications:

  • Familiarity with Johnson Controls Metasys software, hardware and programming.
  • Completion of Johnson Controls Metasys Learning Track coursework with a concentration in either Metasys Operations or Metasys Troubleshooting and Maintenance.
  • Maryland First Grade or Second Grade Stationary Engineer's license.
  • HVAC/R journeyman's license.
  • Universal CFC Certification.
  • Familiarity with computerized maintenance management system (MAXIMO).
  • Experience in emergency response, hazardous materials handling, applicable OSHA/EPA regulations.

Special Working Conditions:

  • Working hours are 7:00AM to 3:30PM; adjusted or additional hours may be required during peak work load time and occasional weekend support for customer driven outages.
  • Use of personal protective equipment.
  • Outside work during all types of weather.
  • Occasional overtime may be required.
  • Operation of APL vehicles and industrial equipment.
  • Ability to work from ladders/scaffolding/roofs, confined spaces.
  • Lift 50 lbs.
  • Assist other trades as directed.
  • Newly-hired staff receive regularly-scheduled certification safety training as required by EPA and OSHA/MOSH in the use of MSDS, respirators, scaffolding,ladders, fall protection gear, lockout/tagout, forklifts, aerial platforms, and confined space.
  • May undergo periodic occupational physical.


Applicant selected will be subject to a government security clearance investigation and must meet the requirements for access to classified information. Eligibility requirements include U.S. citizenship.


APL offers a comprehensive benefits package including a liberal vacation plan, a matching retirement program, significant educational assistance, a scholarship tuition program for staff with dependents, and competitive salaries commensurate with skills and experience. For more information about our organization, please visit our web site at

Equal Employment Opportunity:

Johns Hopkins University/Applied Physics Laboratory (APL) is an Equal Opportunity/Affirmative Action employer that complies with Title IX of the Education Amendments Acts of 1972, as well as other applicable laws. All qualified applicants will receive consideration for employment without regard to race, color, religion, sexual orientation, gender identity, national origin, disability, or protected Veteran status.

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