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Location US-CA-Ontario
ID 2026-2190
HCI Systems Inc. is a fast-growing California-based low-voltage contracting company, and we’re currently seeking a Purchasing Agent to join our team. This critical role requires a dynamic and motivated individual to manage purchase orders and purchasing responsibilities, ensuring seamless coordination and collaboration with our vendors.    Schedule: 6:00am-3:00pm or 7:00am-4:00pm
Location US-CA-Ontario
ID 2026-2186
Are you looking for a unique career opportunity that offers great growth potential? Are you a low voltage technician with DAS/ERRCS/ERCES experience? We are seeking skilled Installers, Technicians, and Foreman that have experience in the Public Safety DAS (Distributed Antenna System) industry, installing ERRCS/ERCES infrastructure and equipment. Experience commissioning and wiring the ERRCS equipment is a plus as well as proficiency in using any of the following: Spectrum Analyzer, CW, and PCTEL equipment. Experience installing electrical conduits and or Low Voltage infrastructure is also a plus.
Location US-CA-Ontario
ID 2026-2182
HCI Systems Inc. is a rapidly growing low-voltage contracting company based in California. We are currently seeking a detail-oriented Sales Support Specialist to join our Booking department in Ontario. In this role, you’ll have a key part in processing sales and booking submissions for our upcoming client projects and working closely with our internal sales representatives. This role will report directly to the Assistant Controller and Accounting Manager.
Location US-CA-Sacramento
ID 2026-2180
We are seeking skilled Fire Alarm Inspectors to join our team. In this role you will need to be familiar with inspecting and testing fire alarm systems. 
Location US-CA-Sacramento
ID 2026-2179
We are seeking a skilled Fire Alarm Service Technicians to join our team. In this role you will need to be familiar with servicing, troubleshooting, and repairing Fire Alarm systems.
Location US-CA-Pleasanton
ID 2026-2173
Grow with us!   HCI Systems, Inc. is seeking a results-driven, enthusiastic sales professional to join our dynamic team. In this role, you will sell enterprise-level integrated security solutions with a focus on new construction and build strong relationships with end-users, electrical contractors and general contractors. You will have the opportunity to prospect and cultivate new relationships, gain an understanding of our clients' needs, and secure sales opportunities.    About Us: HCI Systems, Inc. is a renowned leader in the fire life safety and low voltage industry, providing our clients with an end-to-end...
Location US-CA-Sacramento
ID 2026-2171
We are seeking skilled DAS (Distributed Antenna Systems) Designers and Senior Designers to join our team. In this role, you will design and generate DAS/ERRCS/low-voltage RF system drawings, perform RF modeling, prepare technical submittals, RFI’s, and closeout documents.
Location US-CA-Pleasanton
ID 2026-2170
We are seeking skilled DAS (Distributed Antenna Systems) Designers and Senior Designers to join our team. In this role, you will design and generate DAS/ERRCS/low-voltage RF system drawings, perform RF modeling, prepare technical submittals, RFI’s, and closeout documents.
Location US-CA-San Diego
ID 2026-2169
We are seeking skilled DAS (Distributed Antenna Systems) Designers and Senior Designers to join our team. In this role, you will design and generate DAS/ERRCS/low-voltage RF system drawings, perform RF modeling, prepare technical submittals, RFI’s, and closeout documents.
Location US-CA-Pasadena
ID 2026-2168
We are seeking skilled DAS (Distributed Antenna Systems) Designers and Senior Designers to join our team. In this role, you will design and generate DAS/ERRCS/low-voltage RF system drawings, perform RF modeling, prepare technical submittals, RFI’s, and closeout documents.
Location US-CA-Ontario
ID 2026-2167
We are seeking skilled DAS (Distributed Antenna Systems) Designers and Senior Designers to join our team. In this role, you will design and generate DAS/ERRCS/low-voltage RF system drawings, perform RF modeling, prepare technical submittals, RFI’s, and closeout documents.
Location US-CA-Los Angeles
ID 2026-2166
We are seeking skilled DAS (Distributed Antenna Systems) Designers and Senior Designers to join our team. In this role, you will design and generate DAS/ERRCS/low-voltage RF system drawings, perform RF modeling, prepare technical submittals, RFI’s, and closeout documents.
Location US-CA-Ontario
ID 2026-2165
Expanding Low Voltage Contractor in Southern CA is looking for a Warehouse Associate to join the team. This person will report directly to the Warehouse Manager. The work environment is energetic and fast paced, so the candidate must be detailed orientated, mechanically inclined, able to follow detailed instructions, ask questions, be a team player, and have an acceptable DMV record. Working days are Monday through Friday with occasional weekends and overtime needed. The position entails but is not limited to the job duties and activities listed below.
Location US-CA-Irvine
ID 2026-2163
We are seeking skilled DAS (Distributed Antenna Systems) Designers and Senior Designers to join our team. In this role, you will design and generate DAS/ERRCS/low-voltage RF system drawings, perform RF modeling, prepare technical submittals, RFI’s, and closeout documents.
Location US-CA-Ontario
ID 2026-2103
HCI Systems Inc. is a licensed C-7, C-10 and C-16 systems integration contractor offering a full spectrum of services including sales, engineering, installation, service, and maintenance with over 600 employees in our seven branches. We offer fire life safety, fire suppression, fire sprinkler, access control, video management, intrusion detection, structured cable, nurse call and other related electronic detection solutions to our customers.   We are seeking a skilled Fleet Coordinator to join our team. In this role you will be responsible for a variety...
Location US-CA-Sacramento
ID 2026-2096
We are seeking a skilled Foreman to join our team. In this role, you will need to be willing to install and be familiar with the equipment, installation, and commissioning of low voltage systems, working with subcontractors and general contractors and have at least journeyman-level installation and troubleshooting experience, is a plus.
Location US-CA-Pasadena
ID 2026-2086
We are seeking a skilled Fire Alarm Service Technician to join our team. In this role you will need to be familiar with servicing, troubleshooting, and repairing Fire Alarm systems.
Location US-CA-Ontario
ID 2026-2034
We are seeking a skilled Fire Alarm Service Technicians to join our team. In this role you will need to be familiar with servicing, troubleshooting, and repairing Fire Alarm systems.
Location US-CA-Pleasanton
ID 2026-2013
We are seeking skilled Fire Alarm Installers and Technicians to join our team. In this role you will need to be familiar with the equipment, installation, and commissioning of low voltage systems. Multiple years of experience in installation and troubleshooting is a plus.
Location US-CA-Ontario
ID 2026-1948
HCI Systems, Inc. (HCI) is hiring motivated, outgoing individuals to join our fast-growing team as Entry-Level Construction Sales Representatives. This is an excellent opportunity for early-career professionals or individuals looking to transition into B2B sales and learn the fire life safety and low voltage industry from the ground up.  
Location US-CA-Pasadena
ID 2026-1938
Grow with us!   HCI Systems, Inc is hiring and seeking enthusiastic Service Sales Account Managers to join our fast-growing team! We are a destination employer for highly motivated team members who want to be part of a leading fire and security systems integration company. In this role, you will partner with existing customers and build new relationships to provide low voltage, fire, life safety products, and services.   About Us: HCI Systems, Inc. is a renowned leader in the fire life safety and low voltage industry, providing our clients with an end-to-end service offering that allows...
Location US-CA-Ontario
ID 2026-1935
Grow with us!   HCI Systems, Inc. is seeking a results-driven, enthusiastic sales professional to join our dynamic team. In this role, you will sell enterprise-level integrated security solutions with a focus on new construction and build strong relationships with end-users, electrical contractors and general contractors. You will have the opportunity to prospect and cultivate new relationships, gain an understanding of our clients' needs, and secure sales opportunities.    About Us: HCI Systems, Inc. is a renowned leader in the fire life safety and low voltage industry, providing our clients with an end-to-end...
Location US-CA-Ontario
ID 2026-1934
Grow with us!   HCI Systems, Inc. is a renowned leader in the fire life safety and low voltage industry, providing our clients with an end-to-end service offering that allows them to bundle all their needs under one provider. As we expand our capabilities into enterprise AV solutions, we are seeking a highly motivated Senior Sales Representative to join our team. This role will focus on developing and nurturing relationships within the AV integration space, driving business growth, and ensuring client satisfaction.
Location US-CA-Sacramento
ID 2026-1930
Grow with us!   HCI Systems, Inc. is seeking a results-driven, enthusiastic sales professional to join our dynamic team. In this role, you will sell enterprise-level integrated fire life safety/low voltage solutions with a focus on new construction and build strong relationships with end-users, electrical contractors and general contractors. You will have the opportunity to prospect and cultivate new relationships, gain an understanding of our clients' needs, and secure sales opportunities.    About Us: HCI Systems, Inc. is a renowned leader in the fire life safety and low voltage industry, providing our...
Location US-CA-Los Angeles
ID 2026-1929
Grow with us!   HCI Systems, Inc. is seeking a results-driven, enthusiastic sales professional to join our dynamic team. In this role, you will sell enterprise-level integrated security solutions with a focus on new construction and build strong relationships with end-users, electrical contractors and general contractors. You will have the opportunity to prospect and cultivate new relationships, gain an understanding of our clients' needs, and secure sales opportunities.    About Us: HCI Systems, Inc. is a renowned leader in the fire life safety and low voltage industry, providing our clients with an end-to-end...
Location US-CA-Los Angeles
ID 2026-1928
Grow with us!   HCI Systems, Inc. is a renowned leader in the fire life safety and low voltage industry, providing our clients with an end-to-end service offering that allows them to bundle all their needs under one provider. As we expand our capabilities into enterprise AV solutions, we are seeking a highly motivated Senior Sales Representative to join our team. This role will focus on developing and nurturing relationships within the AV integration space, driving business growth, and ensuring client satisfaction.
Location US-CA-Los Angeles
ID 2026-1927
We are seeking a skilled Security Service Technician to join our team. In this role you will need to be familiar with inspecting, testing, servicing, trouble shooting and repairing Access Control, CCTV and Intrusion Systems in medium and large commercial buildings.
Location US-CA-Irvine
ID 2026-1924
Grow with us!   HCI Systems, Inc. is seeking a results-driven, enthusiastic sales professional to join our dynamic team. In this role, you will sell enterprise-level integrated security solutions with a focus on new construction and build strong relationships with end-users, electrical contractors and general contractors. You will have the opportunity to prospect and cultivate new relationships, gain an understanding of our clients' needs, and secure sales opportunities.    About Us: HCI Systems, Inc. is a renowned leader in the fire life safety and low voltage industry, providing our clients with an end-to-end...
Location US-CA-Fresno
ID 2026-1922
Grow with us!   HCI Systems, Inc. is seeking a results-driven, enthusiastic sales professional to join our dynamic team. In this role, you will sell enterprise-level integrated fire life safety/low voltage solutions with a focus on new construction and build strong relationships with end-users, electrical contractors and general contractors. You will have the opportunity to prospect and cultivate new relationships, gain an understanding of our clients' needs, and secure sales opportunities.    About Us: HCI Systems, Inc. is a renowned leader in the fire life safety and low voltage industry, providing our...
Location US-CA-Ontario
ID 2026-1915
HCI Systems, a fast-growing leader in electrical, fire life safety, and low-voltage solutions across the U.S., is seeking an experienced IT Manager to oversee IT operations and strategy for our three business entities: HCI Systems, Control Systems Inc., and CMD Electric. This position requires a strategic IT professional with the ability to lead and support a team of technicians, providing support to over 1,000 users across remote offices nationwide. The ideal candidate will have a proven ability to manage complex IT environments in a fast-paced setting.