ENVIRONMENTAL CONTROL SYSTEM SPECIALIST

Salary : $87,422.40 - $100,089.60 Annually
Location : Orange County
Job Type: Full-Time Regular
Job Number: 3126CP-0926-060(O)
Department: Sheriff-Coroner
Opening Date: 09/18/2026
Closing Date: Continuous

CAREER DESCRIPTION
ENVIRONMENTAL CONTROL SYSTEM SPECIALIST
Salary may be negotiable within the range listed above, based on position requirements and successful candidate's qualifications, subject to appropriate authorization.
OPEN TO THE PUBLIC

This recruitment will establish an open eligible list that will be used to fill current and future Environmental Control Systems Specialist positions. The eligible list established may also be used to fill positions in similar and/or lower classifications throughout the County of Orange.
DEADLINE TO APPLY
This recruitment will be open for a minimum of five (5) business days and will remain open on a continuous basis until 11:59 P.M. (PST) on the day the Department's needs are met.
THE OPPORTUNITY

The Research and Development Division (R&D) of the Orange County Sheriff's Department supports the department's mission by developing and maximizing resources necessary to advance law enforcement objectives and department goals through cost effective, innovative opportunities and partnerships. The division facilitates department-wide construction and maintenance for sheriff's facilities, manages fleet vehicles, provides grant writing and assistance, procures available state and federal equipment, inventories and issues department equipment, processes uniform needs and conducts research and special projects without compromise to quality, safety or service.

The Sheriff's Department has an exciting opportunity working as an Environmental Control System Specialist in their Facilities Operations Section with journey-level knowledge and experience in developing, maintaining and repairing a computerized environmental controls system.

Responsibilities and duties for this position include, but are not limited to, the following:

• Check communication status of the HVAC network throughout our facilities
• Check the functionality of all mechanical rooms throughout OCSD facilities, including pumps, valves, domestic water heaters, VFDs, cooling towers, chillers, and boilers
• Inspect all the facilities' BAS system workstations for any alarms or trouble messages
• Modify operational parameters such as temperature setpoints, equipment schedules, and control logic via the software interface or local controllers
• Inspect the status of functionality of Variable Air Volume boxes, zone dampers, exhaust fans, reheat, and Phoenix air valves at the Coroner's Building
• Inspect the status and functionality of Air handlers that serve jail facilities including valves, fans, dampers, variable frequency drives, control panels, VAV boxes, and zone temperatures

DESIRABLE QUALIFICATIONS AND CORE COMPETENCIES
In addition to the minimum qualifications, the ideal candidate will possess a minimum of two years of experience in the following competencies.

In addition, the ideal candidate will also have extensive experience in the following core competencies:

Technical Knowledge

• Diagnose malfunctioning environmental control components, controllers, and equipment.
• Troubleshooting and repair of HVAC sensors, dampers and valve actuators, fire dampers, room controllers, networked thermostats, DDC controls, input/output devices, fiber optics (fusion/test), CAT3, CAT5, and CAT6 cabling.
• Programming and correcting program language in the system environment, including Alarm systems.
• Monitoring environmental control systems for alarms, temperature readings, and wireless protocol integration such as Siemens, Schneider, etc.

Industry Knowledge

• Industry standard programming languages related to Direct Digital Control software platforms and databases, e.g., BACnet, Modbus, Lon Works, Tridium Niagara, Fieldbus, etc.
• Industry-leading environmental control systems such as Siemens Apogee and Desigo, Athena Engineering TAC Vista, Johnson Controls Metasys, Schneider Controls, etc.
• Both HVAC digital controls and pneumatic controls in mixed environments.
• Programmable Logic Controllers (PLC).
• Low-voltage wiring and systems up to 480V.
• HVAC system schematics, I/O tables, network diagrams, logic diagrams, and other HVAC drawings.
• Variable frequency drives (VFDs) and their applications.

Computer Experience

• Knowledge of computer networks and various types network communication hardware and software
• Wired and wireless network protocols
• Microsoft Windows environment
• Microsoft Office applications e.g. Word, Outlook, Access and Excel
• Computerized Maintenance Management Systems (CMMS)
• Use of portable wireless devices such as laptops, tablets and smartphones

Communication

• Effectively communicating and working with contracted service vendors
• Reviewing blue prints and specifications, defining controls system requirements for HVAC related projects
• Reporting on and completing corrective and preventive maintenance work orders issues through a computerized maintenance management system (CMMS)
• Working with other journey level trades on maintenance related issues of physical plant equipment and maintained assets

MINIMUM QUALIFICATIONS
Please click here for details on the Environmental Control System Specialist classification, including the physical, mental, environmental and working conditions.

License Required
Possession of a valid California Driver's License Class C or higher, by date of appointment.

SPECIAL REQUIREMENTS
Position requires working in a correctional facility environment.
SPECIAL QUALIFICATIONS
Applicants must not have been convicted of a felony or be on any form of probation and must pass an extensive background investigation to the satisfaction of the Orange County Sheriff-Coroner.

Background screening includes completing of a Personal History Form, interview with a background investigator, fingerprinting and may include a polygraph test. Some of the areas considered in the background screening include prior convictions, traffic violations, drug use and credit problems, employment history, professional references and education verification (i.e. degree, license, or official transcripts). Foreign degrees require an evaluation of U.S. equivalency by an agency that is a member of the National Association of Credential Evaluation Services (N.A.C.E.S.).

RECRUITMENT PROCESS
Sheriff Human Resources will screen all application materials to identify qualified applicants. After screening, qualified applicants will be referred to the next step and notified of all further procedures applicable to their status in the competition.

Application Screening (Refer/Non-Refer)
Applications and supplemental responses will be screened for qualifications that are highly desirable and most needed to successfully perform the duties of this job. Only those applicants that meet the qualifications as listed in the job bulletin will be referred to the next step.
Written/Performance Exam (Weighted 100%)
A written/performance exam is a test in which applicants demonstrate their knowledge, skills and, ability to performing job related tasks. It is designed to assess how effectively applicants apply their knowledge, skills, and abilities in realistic or simulated scenarios. Only the most qualified candidates will move forward to the next step in the recruitment process or will be placed on the eligible list.
Eligible List
Once the assessment has been completed, Sheriff Human Resources will establish an eligible list of candidates. Candidates placed on the eligible list may be referred to a selection interview to be considered for present and future vacancies.

Based on the County's needs, the selection procedures listed above may be modified. All candidates will be notified of any changes in the selection procedures.

Veterans Employment Preference: The County is committed to providing a mechanism to give preferential consideration in the employment process to veterans and their eligible spouses and will provide eligible participants the opportunity to receive interviews in the selection process for employment and paid internship openings. Please clickhere to review the policy.
ADDITIONAL INFORMATION

EMAIL NOTIFICATION
Email is the primary form of notification during the recruitment process. Please ensure your correct email address is included in our application and use only one email account.

NOTE: User accounts are established for one person only and should not be shared with another person. Multiple applications with multiple users may jeopardize your status in the recruitment process for any positions for which you apply. Candidates will be notified regarding their status as the recruitment proceeds via email through the GovernmentJobs.com site. Please check your email folders, including spam/junk folders, and/or accept emails ending with "governmentjobs.com" and "ocgov.com." If your email address should change, please update your profile at

FREQUENTLY ASKED QUESTIONS
Click for additional Frequently Asked Questions.

For specific information pertaining to this recruitment, contact Eugenia Vasquez-Puentes at or 714-834-5838.

NOTE: Responses of "See Resume" or copy and paste of work experience are not a qualifying response and will not be scored.

• Supplemental questions are designed to help you present your qualifications for this position.
• Your qualifications for this position will be rated based on the information that you supply.
• Please provide succinct, concise, descriptive and detailed information for each question.
• Resumes will not be accepted in lieu of completing these questions.
• If you have no experience, write "no experience" for the appropriate questions.

I have read and understand the importance on answering the following questions.

• Yes
• No

02

Please describe your experience working with Direct Digital Controls (DDC) that control heating, ventilation, and air conditioning equipment. Include the names of software and years of experience.
03

Please describe your experience installing, maintaining, and repairing electrical wiring systems and equipment.
Required Question