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.
Senior AI Application Engineer
Company: Apple
Location: San Diego, CA
Posted Aug 25, 2025
In this role, you'll work at the intersection of applied AI and software engineering-translating ground breaking research into practical, scalable tools.
Registered Nurse (RN)
Company: Young Naturopathic Wellness Center
Location: Los Gatos, CA
Posted Aug 25, 2025
Licenses/Certifications: Valid RN license in California. Collaborate with the functional medicine practitioner to develop and implement personalized treatment…
Landscape Construction Laborer
Company: Farmscape
Location: Los Angeles, CA
Posted Aug 25, 2025
Drive between project sites and supply vendors (valid driver’s license required). Valid driver’s license & proof of insurance. Compensation: *$20 - $23/hr.
Food Service Teacher - School Chef
Company: Primrose School of Willow Glen
Location: San Jose, CA
Posted Aug 25, 2025
Keywords: teacher, education, preschool teacher, child care, teaching, daycare, online teacher, preschool, school, KinderCare, preschool, teacher, infant,…
Tax Manager/ Director- 250K-350K
Company: Confidential
Location: Century City, CA
Posted Aug 25, 2025
Experience serving *high-net-worth clients*, particularly in *real estate*. A top accounting firm in Los Angeles (90067) is actively searching for a *Tax…
Armed Waterborne Security Officers – Full-Time
Company: Six Maritime
Location: San Diego, CA
Posted Aug 25, 2025
Meet all state/local licensing requirements before employment. Ability to pass a background check in accordance with federal, state, and local laws.
Lead Finish Carpenter
Company: Parfett Construction Inc
Location: Campbell, CA
Posted Aug 25, 2025
A valid driver's license may be required for travel between job sites. Utilize hand tools and power tools safely and effectively to complete projects.
Security Officer - Critical Infrastructure
Company: Inter-Con Security Systems
Location: Lemon Grove, CA
Posted Aug 25, 2025
Ensure all guests, employees, and contractors are treated with respect. Greet and log all tenants, visitors, and contractors entering the premises.
Mandarin/Cantonese Speaking Case Manager
Company: Sourcewise
Location: Santa Clara, CA
Posted Aug 25, 2025
Care Manager will evaluate participants, identify the potential limitations which impede independent living, and activate resources to allow participants to…
Security Officer - Critical Infrastructure
Company: Inter-Con Security Systems
Location: La Mesa, CA
Posted Aug 25, 2025
Access control of all entries by employees, vendors, contractors, visitors, etc. Graduate of a Police or Corrections Academy (must be POST certified), and one (…
Local CDL-A Truck Driver No Touch
Company: Lindy Carriers
Location: Paramount, CA
Posted Aug 25, 2025
Must have a valid Class A license. CDL-A drivers can expect to make up to $1400 - $1800 weekly average. Full benefit options- dental, vision, medical, life.
Teacher
Company: California Hospital Medical Center
Location: Los Angeles, CA
Posted Aug 25, 2025
Staff within these programs are charged with nurturing and stimulating the social emotional language cognitive and physical development of each child.