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.
Sr. Test Software Engineer
Company: ASML
Location: San Diego, CA
Posted Aug 21, 2025
Creates engineering designs documents including block diagrams, software sequence diagrams, flow diagrams and other engineering design artifacts.
Sr Accountant - Accounting - Sharp Corporate - Day Shift - Full Time
Company: Sharp Healthcare
Location: San Diego, CA
Posted Aug 21, 2025
Prepares federal and state tax returns. Prepares annual Federal and state-tax returns by completion date and assists with tax research and other tax matters as…
Housekeeping/EVS Tech - Nights - San Diego
Company: Scripps Health
Location: San Diego, CA
Posted Aug 21, 2025
The housekeeping team performs job functions to support environmental care: (patient care area cleaning, non-patient care area cleaning, linen service, waste…
Program Manager
Company: Pinkerton
Location: Fremont, CA
Posted Aug 21, 2025
Coach and develop employees around the processes and tools that have a direct impact on the customer experience. Able to analyze business documents.
Security Officer Secret Clearance Required
Company: Allied Universal
Location: Santa Monica, CA
Posted Aug 21, 2025
Greet guests and employees and escorts visitors and contractors to secure entry and exit points. As a Cleared Security Officer, you'll receive specialized…
Pharmacist – Sharp Community Medical Group – Day Shift – Full Time
Company: SHARP HEALTHCARE
Location: San Diego, CA
Posted Aug 21, 2025
Participates in designing, developing, and implementing pharmacy clinical programs (via Lean Six Sigma or Continuous Quality Improvement projects) to promote…
Data Scientist II - Segmentation Data Science
Company: Disney Direct to Consumer
Location: Santa Monica, CA
Posted Aug 21, 2025
Bachelor’s degree in advanced Mathematics, Statistics, Data Science or comparable field of study. Strong communication skills, for both technical and non-…
Senior Solutions Architect, GPU - Cloud Service Providers
Company: NVIDIA
Location: Santa Clara, CA
Posted Aug 21, 2025
As a member of our Solutions Architecture team, you will collaborate with strategic customers, providing end-to-end technology solutions and technical support…
Charter School - Special Education Teacher (SPED)
Company: The Stepping Stones Group
Location: San Diego, CA
Posted Aug 21, 2025
Valid state license or certification for Special Education Teaching (mild/mod OR mod/severe credential). Spread Pay Plan: Enjoy a consistent income throughout…
Strategic Operations & Data Analyst
Company: Cyngn
Location: Mountain View, CA
Posted Aug 21, 2025
Familiarity with data/BI tools; comfortable working with technical teams. Bachelor’s degree in Finance, Economics, Business Administration, Engineering,…
Substitute Teacher K-12 San Jose, CA - Indeed Apply
Company: Scoot Education
Location: San Jose, CA
Posted Aug 21, 2025
While pay varies based on certification, school, and the assignment, we strive to pay some of the highest rates among substitute providers.
Solutions Architect, Hyperscale
Company: NVIDIA
Location: Santa Clara, CA
Posted Aug 21, 2025
This dynamic role requires excellent technical and interpersonal skills to analyze, define, implement and optimize AI/ML and HPC software and system solutions…