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.
GenAI Solutions Architect, AGS North America Startups
Company: Amazon
Location: East Palo Alto, CA
Posted Aug 22, 2025
Develop startup specific technical content, such as blog posts, sample code and solutions, to assist customers solve technical problems and reduce time-to-…
Software Engineer, Safari Extensions
Company: Apple
Location: San Diego, CA
Posted Aug 22, 2025
You’ll implement new APIs and tools and improve the architecture, security, and privacy of existing ones. The team builds on the industry-leading WebKit engine…
Systems Engineer
Company: Robert Half
Location: Los Angeles, CA
Posted Aug 22, 2025
This position offers the opportunity to design and implement solutions across cloud, networking, and security while maintaining strong client relationships.
Cement Finisher
Company: McCarthy Building Co
Location: Los Angeles, CA
Posted Aug 22, 2025
This role is essential and is responsible for smoothing out, leveling and finishing freshly poured concrete at job or construction sites.
kitchen chef For Authentic Japanese restaurant
Company: Leichi Japanese restaurant
Location: Santa Clara, CA
Posted Aug 22, 2025
Assisting with authentic Japanese food preparation and daily kitchen operations. Supporting food prep and maintaining kitchen organization.
Security Guard - Events Coverage
Company: GardaWorld Security Services U.S.
Location: San Jose, CA
Posted Aug 22, 2025
You have valid CA. driver license and clean driving record. You have a state security license and additional 32hr. 6 months security experience preferred.
Carpenter
Company: McCarthy Building Co
Location: Los Angeles, CA
Posted Aug 22, 2025
McCarthy is currently accepting applications for Union Carpenters with experience working on large construction jobsites.
Carpenter / Laborer
Company: BTC Bob Tedrick Construction Inc.
Location: San Jose, CA
Posted Aug 22, 2025
This includes siding repair/replacement, stucco repair, waterproofing, dry rot repair, balconies, windows, stairways, etc. Expected hours: 30 – 40 per week.
Sales Co-Worker IKEA for Business & Dining
Company: IKEA
Location: San Diego, CA
Posted Aug 22, 2025
Co-worker discount, meal deal, and referral bonus. 1 year experience in retail sales, preferably in the home furnishing sector.
Preschool Lead Teacher (1 year lead preschool teacher experience required)
Company: Bonita Montessori
Location: Bonita, CA
Posted Aug 22, 2025
Guide children to develop their artistic and practical capabilities through a carefully constructed curriculum (identify shapes, numbers or colors, do crafts…
JANITOR
Company: Almaden Health and Rehabilitation Center
Location: San Jose, CA
Posted Aug 22, 2025
Knocks before entering resident rooms and bathrooms. Provides housekeeping services to provide a safe, sanitary and comfortable environment for residents, staff…
SoC Power Modeling Engineer
Company: Apple
Location: San Diego, CA
Posted Aug 22, 2025
A minimum of a bachelor's degree in relevant field and a minimum of 10 years of relevant industry experience. Skills in scripting, data analysis and experience…