Tech Jobs in Ontario, CA
172,772 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.
Board Certified Behavioral Analyst- San Diego - EBSH Home experienced
Company: Redwood Family Care Network
Location: La Jolla, CA
Posted Sep 11, 2025
Master’s degree in related field preferred, BCBA credential required. This position will require a valid California ID or Driver’s License.
Janitor - LA Area Hospitals
Company: Advanced Building Maintenance Inc
Location: Los Angeles, CA
Posted Sep 11, 2025
The Janitor will ensure that our facility remains a welcoming and sanitary space for building occupants and visitors. Competitive salary based on experience.
Housekeeping/Custodial - MOHI Farm
Company: Mohi Farms Inc
Location: Morgan Hill, CA
Posted Sep 11, 2025
Acknowledges and greets all guests in public spaces with a warm, friendly greeting. The Housekeeping/Custodial position will come in contact with guests and…
Journeyman Electrician and Foreman (CARDED JW Prevailing Wage)
Company: New Era Electric LLC
Location: San Diego, CA
Posted Sep 10, 2025
Function as an Electrician/Journeyman Wireman for New Era Electric; installing new electrical systems and repairing existing electrical systems while…
Accountant
Company: UME Tea
Location: San Jose, CA
Posted Sep 11, 2025
Monitor cash deposits, petty cash usage, and credit card transactions. Assist in *federal and state income tax compliance*, including coordinating with external…
Plumber
Company: San Jose State University
Location: San Jose, CA
Posted Sep 10, 2025
You’ll handle installation, maintenance, inspection, and repair of plumbing systems and fixtures including water, gas, steam, sewage, fire prevention, and…
Marketing Director
Company: ORW/4WP
Location: Gardena, CA
Posted Sep 11, 2025
Bachelor’s degree in Marketing, Business, or related field (Master’s degree preferred). Leverage web and marketing analytics tools (Google Analytics, Adobe…
Aesthetic PA/NP/RN
Company: Kind Health Group
Location: Encinitas, CA
Posted Sep 11, 2025
RN, NP, or PA license (active CA license required). Work in a stunning, state-of-the-art medical practice in coastal San Diego. What We’re Looking For:
Retail Sales Associate Spanish Bilingual
Company: Verizon
Location: Los Angeles, CA
Posted Sep 11, 2025
Potential to grow your customer base by placing outbound calls and sending text messages to current Verizon customers who are interested in our products and…
Medical Assistant Trainer (Licensed RN)
Company: Saban Community Clinic
Location: Hollywood, CA
Posted Sep 11, 2025
Current, unrestricted Registered Nurse (RN) license in California. Serve as a resource and mentor for Medical Assistants, answering clinical questions and…
Board Certified Behavioral Analyst- San Diego - EBSH Home experienced
Company: Redwood Family Care Network
Location: National City, CA
Posted Sep 11, 2025
Master’s degree in related field preferred, BCBA credential required. This position will require a valid California ID or Driver’s License.
Line Operator Anodizer
Company: Manpower
Location: Lynwood, CA
Posted Sep 11, 2025
Oversee and assist all line assistants to optimize throughput. As a Line Operator Anodize, you will be part of the production department supporting the…