Tech Jobs in Ontario, CA
172,812 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.
Construction Laborer-Installer
Company: Groundworks Companies
Location: Sunnyvale, CA
Posted Aug 12, 2025
Valid driver's license preferred – required for promotion. *Protect, repair, and improve our customers’ greatest asset* – their home.
Temporary Graphic Designer
Company: Wilson, Sonsini, Goodrich & Rosati
Location: Century City, CA
Posted Aug 12, 2025
We are specifically looking for someone with expert level skillset in high-profile presentation design and in publication design layout or similar work.
Commercial Roofer
Company: Just Leaks Inc.
Location: San Jose, CA
Posted Aug 12, 2025
A valid driver’s license is preferred for transportation to various job sites. Commitment to safety practices on construction sites.
International Tax Manager
Company: Robinhood
Location: Menlo Park, CA
Posted Aug 12, 2025
Performance driven compensation with multipliers for outsized impact, bonus programs, equity ownership, and 401(k) matching. About the team + role.
Elementary School Teacher
Company: Action Day Schools
Location: San Jose, CA
Posted Aug 12, 2025
New Hire Welcome Workshop, Staff Development Days, CPR/First Aid certification course offerings & more! Monitor and assess student progress, providing support…
Executive Chef
Company: Bon Appetit
Location: Mountain View, CA
Posted Aug 12, 2025
Complies with federal, state and local health and sanitation regulations and department sanitation procedures as evidenced through local health department and…
Catering Chef
Company: Bon Appetit
Location: Mountain View, CA
Posted Aug 12, 2025
Holiday Time Off (varies by site/state). Associates may also be eligible for paid and/or unpaid time off benefits in accordance with applicable federal, state,…
Friction Stir Welding Technician II, First Shift
Company: Relativity Space
Location: Long Beach, CA
Posted Aug 12, 2025
Perform precision blending/deburring using a combination of standard power tools or hand tools. Proficient in the use of common hand tools and inspection tools.
Software Release Lead (5+ years experience)
Company: Electric Power Group, LLC
Location: Pasadena, CA
Posted Aug 12, 2025
The Software solutions support control center operations for real time monitoring and engineering functions for analytics, event analysis, and grid performance…
Third Grade Teacher
Company: St. Joseph Elementary School
Location: Fremont, CA
Posted Aug 12, 2025
Collaborate with colleagues to develop and implement lesson plans and assessments. A Bachelor's degree in Elementary Education or a related field.
Sr. Construction Superintendent (5 Years Federal Government Project Experience Required)
Company: Hawk Contracting Group, LLC
Location: Palo Alto, CA
Posted Aug 12, 2025
Physical capabilities to work in the field. Ability to work in fast paced environment, ability to read and interpret plans and specifications and help develop…
Friction Stir Welding Technician I, Second Shift
Company: Relativity Space
Location: Long Beach, CA
Posted Aug 12, 2025
Perform precision blending/deburring using a combination of standard power tools or hand tools. Proficient in the use of common hand tools and inspection tools.