Tech Jobs in Ontario, CA
172,807 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.
Registered Nurse - Infusion
Company: Center for Rheumatology
Location: Los Angeles, CA
Posted Aug 12, 2025
Demonstrate compliance with agency operations, policies and procedures, professional standards, local, state, federal regulations/guidelines, and accreditation…
Plumber (Experienced)
Company: Drain Doctor
Location: San Jose, CA
Posted Aug 12, 2025
Valid driver's license with the ability to operate commercial vehicles if required. Assemble and install pipes, fittings, and fixtures using power tools and…
Preschool Teacher - Milpitas Campus
Company: Learn & Play Montessori
Location: Milpitas, CA
Posted Aug 12, 2025
Must meet state criteria for child care employment. Implement Learn And Play Montessori School Montessori + STEM™ curriculum in a way that is consistent with…
Japanese Bilingual Marketing
Company: Konecto
Location: Carson, CA
Posted Aug 12, 2025
All applicants applying for U.S. job openings must be legally authorized to work in the United States.
Journeyman Electrician
Company: Lightworks
Location: San Diego, CA
Posted Aug 12, 2025
LIGHTWORKS is an industry leading High-End electrical contractor that specializes in Electrical, Lighting and Smart Integration on extreme homes.
Thermoform Machine Operator
Company: Domnovate
Location: Los Angeles, CA
Posted Aug 12, 2025
Knowledge of mechanical, pneumatic, electrical, and hydraulic systems. Report mechanical issues and assist in troubleshooting. Pay: $21.00 - $24.00 per hour.
Carpenter/Framer
Company: D L E
Location: Gardena, CA
Posted Aug 12, 2025
Must own and operate tools, work independently, read blueprints, and maintain a positive attitude. Experience in electrical, plumbing, concrete or other trades…
Inserter Machine Operator I, 1st Shift
Company: O'Neil Digital Solutions
Location: Los Angeles, CA
Posted Aug 12, 2025
Effectively communicate (and listen) clearly, professionally, politely and persuasively in all situations; respond well and in a reasonable, timely manner.
LEAD PLUMBER
Company: Sycuan Casino Resort
Location: El Cajon, CA
Posted Aug 12, 2025
Maintains a safe work and storage area by cleaning and organizing designated storage area, storing tools and materials, repairing or replacing old or broken…
Preschool Teacher - Milpitas Campus
Company: Learn & Play Montessori
Location: Milpitas, CA
Posted Aug 12, 2025
Must meet state criteria for child care employment. Implement Learn And Play Montessori School Montessori + STEM™ curriculum in a way that is consistent with…
Dailies Operator
Company: Streamland Media
Location: Burbank, CA
Posted Aug 12, 2025
Strong communication skills to explain technical things to non-technical people. This is an overnight position where you will be the responsible for all dailies…
Cleaning Services - Temporary
Company: Occidental College
Location: Los Angeles, CA
Posted Aug 12, 2025
Correct choice, and safe use of; cleaning materials, machines, tools and power cleaning equipment. 10% - Reports any problems, needed repair items or safety…