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/Board-Eligible Dermatologist
Company: California Skin Institute
Location: Loma Linda/Beaumont CA
Posted Sep 05, 2025
CNC Operator -1st Shift
Company: 5TH Axis Inc
Location: San Diego, CA
Posted Sep 05, 2025
Reliability and ability to listen and follow instruction. 401K with up to 4% matching. Ability to read blueprints and highly proficient at dimensioning/…
Driver - Non CDL- San Jose
Company: Diesel Direct Inc
Location: San Jose, CA
Posted Sep 05, 2025
You will operate a commercial diesel truck, tractor trailer, ensuring compliance with all regulations and company policies. Valid Class C Driver’s License.
Custodian
Company: Rhee Bros, Inc
Location: Irwindale, CA
Posted Sep 05, 2025
Ability to operate and maintain cleaning equipment (e.g., vacuums, floor buffers). General Cleaning: Sweeping, mopping, vacuuming floors; dusting and polishing…
CNC Machinist
Company: Port Plastics
Location: San Jose, CA
Posted Sep 05, 2025
If you have hands-on experience setting up *Fadal 4020/4525 and HAAS machining centers*, and you know how to read *set-up sheets, tooling lists, and blueprints*…
Physician Assistant - Otolaryngology - San Diego, CA
Company: California Head and Neck Specialists
Location: America's Finest City - San Diego, CA - Enjoy the SoCal lifestyle
Posted Sep 05, 2025
Staff Accountant(Contactor)
Company: Aspire Bakeries
Location: Los Angeles, CA
Posted Sep 05, 2025
Bachelor’s degree in Accounting or related field. In this role, you’ll collaborate closely with teams across payroll, AR/AP, transactional finance, treasury,…
TIG Welder (Dragon)
Company: SpaceX
Location: Hawthorne, CA
Posted Sep 05, 2025
Use various mechanical tools without instruction. Read and interpret technical drawings, and follow detailed work instructions.
Nursing Supervisor - Registered Nurse
Company: Country Hills Post Acute
Location: El Cajon, CA
Posted Sep 05, 2025
Current California nursing license (RN). You will also assist in modifying the treatment regimen to meet the physical and psychosocial needs of the resident, in…
3rd Shift Building Engineer
Company: HVAC Recruitment
Location: Fremont, CA
Posted Sep 05, 2025
Training or certification in HVAC, Electrical, or Plumbing. The ideal candidate will be comfortable with HVAC systems, building automation, and general MEP…
Graphic Designer, North America Sales & Delivery Operations
Company: Tesla
Location: Fremont, CA
Posted Sep 05, 2025
5+ years of professional experience in motion graphics design, with a strong portfolio showcasing animation, video integration, and visual storytelling.
Janitor
Company: SRO Housing Corporation
Location: Los Angeles, CA
Posted Sep 05, 2025
Knowledge of porter, floor care, facilities maintenance, custodial, and industrial cleaning. Perform general janitorial duties to maintain cleanliness and…