Tech Jobs in Ontario, CA
172,845 open positions · Updated daily
Ontario, CA sits in the heart of Orange County, a region that blends the innovation of the Greater Los Angeles tech corridor with a more affordable lifestyle. The city’s proximity to major hubs like Irvine, Santa Ana, and the bustling downtown Los Angeles area means tech talent can tap into a diverse ecosystem of startups, established firms, and research institutions while enjoying a lower cost of living. The presence of the Ontario International Airport further fuels a strong logistics technology sector, attracting companies that need real‑time data solutions for freight and supply chain operations.
Tech companies in Ontario span several verticals. Software and web development firms such as Adobe’s regional office and Oracle’s Irvine branch thrive here, alongside biotech innovators like Genentech’s Orange County lab and Life Sciences Park startups. The city also hosts hardware manufacturers, including Intel’s manufacturing plant in nearby Santa Ana, and telecommunications leaders like T‑Mobile’s Orange County headquarters. With the University of California, Irvine nearby, research collaborations and talent pipelines flow directly into local tech teams.
Ontario’s median rent hovers around $2,500 a month, significantly below the $3,500 average in central Los Angeles, but salaries for tech roles have been rising to match the talent demand. Salary transparency is therefore essential for candidates to negotiate competitively and for employers to attract the best talent. Knowing the exact pay range for roles such as software engineers, data scientists, or product managers helps job seekers evaluate whether a position aligns with their financial goals and lifestyle needs.
Events Chef
Company: FAIRMONT
Location: Los Angeles, CA
Posted Aug 04, 2025
You are self-motivated, and take ownership for driving your own performance, thriving on being trusted and being given freedom in how you do your job.
Heating & Air Conditioning Technician
Company: Los Angeles Community College District
Location: Los Angeles, CA
Posted Aug 04, 2025
A valid Class "C" California driver's license may be required for some positions. Attends to trouble calls for emergency repairs to heating units, refrigeration…
Senior CNC Machinist
Company: DMC Power, Inc.
Location: Carson, CA
Posted Aug 04, 2025
Ability to read and interpret mechanical/engineering documents and drawings; mechanical aptitude and good math skills; a keen eye for detail and results-driven…
Healthcare Customer Service Rep
Company: TotalMed
Location: San Diego, CA
Posted Aug 04, 2025
Handle inbound and outbound calls with professionalism and courtesy. Maintain detailed records of customer interactions through data entry in our computerized…
Customer Service Representative (CSR)
Company: Cintron Solutions
Location: Fremont, CA
Posted Aug 04, 2025
As a Customer Service Representative, you are provided with the knowledge necessary to assist in customer support and sales through entry-level training.
Temporary Seasonal RN Opportunities ( ICU & DOU) - San Diego/ San Marcos
Company: Kaiser Permanente
Location: San Diego, CA
Posted Aug 04, 2025
Relevant recent clinical experience (see individual areas above). Specialty certifications depending on service area. Schedule: Part-Time, Day or Night Shifts.
Dispatch Security Officer
Company: Inter-Con Security Systems
Location: San Diego, CA
Posted Aug 04, 2025
Screening incoming calls from officers, public, media, and other associated agencies and taking appropriate action. Receiving and handling emergency calls.
Temporary Seasonal RN Opportunities ( ICU & DOU) - South Bay/ West LA
Company: Kaiser Permanente
Location: Los Angeles, CA
Posted Aug 04, 2025
Relevant recent clinical experience (see individual areas above). Specialty certifications depending on service area. Schedule: Part-Time, Day or Night Shifts.
Project Manager
Company: thyssenkrupp Bilstein of America Inc
Location: Poway, CA
Posted Aug 04, 2025
A state-of-the-art OE manufacturing plant with a strong focus on safety and cleanliness. Leads cross-functional operational excellence initiatives (non-product…
Verizon Customer Support Associate
Company: Confidential
Location: East Los Angeles, CA
Posted Aug 04, 2025
As a Verizon Customer Support Associate, you are provided with the knowledge necessary to assist in customer support and sales through entry-level training.
Client Services, Business Systems Analyst III
Company: MedImpact Healthcare Systems
Location: San Diego, CA
Posted Aug 04, 2025
Writes detailed descriptions of user needs, program functions, and steps required to develop or modify business systems. United States of America (Exempt).
Junior Sales Associate - entry level - San Diego, CA
Company: Selleck Chemicals LLC
Location: San Diego, CA
Posted Aug 04, 2025
Follow up on leads and provide quotes, technical information, and product recommendations. This is an entry-level sales position.