Tech Jobs in Ontario, CA
172,792 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.
Journeyman Electrician
Company: Sass Electric Inc
Location: San Diego, CA
Posted Aug 14, 2025
Read and interpret blueprints, schematics, and technical drawings to determine layout and installation procedures.
HVAC Technician
Company: Ecotech Companies
Location: San Diego, CA
Posted Aug 14, 2025
Valid driver's license required for travel to job sites. Proficient in reading schematics and technical drawings related to HVAC design.
Senior Software QA Test Development Engineer
Company: NVIDIA
Location: Santa Clara, CA
Posted Aug 14, 2025
Build, develop/debug server and OS level automation front-end and back-end framework and tests. This candidate must have enterprise server integration, strong…
Teacher - Head Start Preschool
Company: EPISCOPAL COMMUNITY SERVICES (ECS)
Location: National City, CA
Posted Aug 14, 2025
Verification of current driver’s license and insurance required for personal car usage. Responsive care giving: Respond quickly in a soothing and tender manner…
Hardware Press Machine Operator
Company: Manpower
Location: San Jose, CA
Posted Aug 14, 2025
Set up and operate hardware presses and related tools to install press-fit and other mechanical hardware. Read and interpret engineering blueprints to determine…
Security Officer
Company: Bastion Security Services
Location: San Jose, CA
Posted Aug 14, 2025
Valid Drivers License and clean drive record for sites that require driving. Valid state-issued *Security Guard License* (Required). High School Diploma or GED.
Technical Accounting Manager
Company: Robert Half
Location: San Diego, CA
Posted Aug 14, 2025
Bachelor’s degree in Accounting, Finance, or a related discipline; active licensure or progress toward licensure is required.
Cybersecurity Systems Analyst - Senior
Company: Amentum
Location: San Diego, CA
Posted Aug 14, 2025
Track and maintain A&A databases, web sites and tools to ensure that networks, systems and devices are properly documented and managed from a cybersecurity…
Clinic RN
Company: Glendale Memorial Hospital and Health
Location: Glendale, CA
Posted Aug 14, 2025
Licensure: Current California license as a Registered. Provides professional nursing care in accordance with the nursing process and BRN scope of practice.
Retail Team Lead
Company: Confidential
Location: Commerce, CA
Posted Aug 14, 2025
Comfortable using tablets and digital tools. Meet daily and weekly sales goals. Previous retail, sales, or customer service experience is a plus.
Retail Team Lead
Company: Confidential
Location: Los Angeles, CA
Posted Aug 14, 2025
Comfortable using tablets and digital tools. Meet daily and weekly sales goals. Previous retail, sales, or customer service experience is a plus.
Registered Nurse (RN)
Company: Hydration Room
Location: San Jose, CA
Posted Aug 14, 2025
In this Registered Nurse (RN) role, you’ll administer IV and injection therapies, provide patient education, and support overall wellness through guidance on…