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.
Construction Worker
Company: MCT
Location: Los Angeles, CA
Posted Sep 03, 2025
Previous experience in construction or a related field is preferred but not required. Operate basic hand tools and power tools under supervision.
Accountant II - Grants Management
Company: Family Health Centers of San Diego
Location: San Diego, CA
Posted Sep 04, 2025
Ensures adherence to all state and federal rules and regulations, as well as departmental standards. Conducts in-depth analysis, reviews and audits of assigned…
Account Manager II - Property & Casualty
Company: CMR Risk & Insurance Services, Inc.
Location: San Diego, CA
Posted Sep 04, 2025
In this pivotal role, you will be instrumental in driving client relationships and ensuring our clients receive exceptional service and support.
Staff Accountant
Company: Robert Half
Location: Burbank, CA
Posted Sep 03, 2025
We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and…
Facilities Custodian
Company: The Santaluz Club, Inc.
Location: San Diego, CA
Posted Sep 03, 2025
Laundry, receptacle maintenance, window cleaning. Deep to medium cleaning inside and outside facility. Lifting up to 25 lbs regularly, up to 50 lbs occasionally…
GNSS Software Engineer
Company: The Norland Group
Location: San Jose, CA
Posted Sep 03, 2025
Analyze customer field reports for issues relating to acquisition, tracking and/or measurement quality. Statistical data analysis to identify trends and issues…
Customer Service Representative - Telecom
Company: AMS Community Connections
Location: South Los Angeles, CA
Posted Sep 03, 2025
Provide post-enrollment support by assisting with basic troubleshooting and answering service-related questions.
Welder - Structural
Company: Cano Steel Inc
Location: Los Angeles, CA
Posted Sep 03, 2025
Perform structural steel welding (field and shop as needed) in compliance with AWS D1.1/D1.3 standards. OSHA 10 or OSHA 30 certification.
Senior CNC Machine Operator
Company: Kalman Manufacuring - CNC Precision Machining
Location: Morgan Hill, CA
Posted Sep 03, 2025
Must be able to make their own off-sets and understand different off set types. Must be able inspect their own work and demonstrate attention to detail when…
Cloud Solutions Architect- NSA
Company: Wind River
Location: San Diego, CA
Posted Sep 04, 2025
Support the technical implementation of solutions that integrate OT and IT systems for customers, leveraging Wind River tools and platforms.
RN / Registered Nurse - Bilingual in Spanish
Company: Grifols
Location: Chula Vista, CA
Posted Sep 03, 2025
Educated and currently certified/licensed in the state of employment and according to state requirements as a Registered Nurse.
Off Duty Officer - Current & Retired Law Enforcement
Company: Inter-Con Security Systems
Location: Milpitas, CA
Posted Sep 03, 2025
Please note that all applicants will be subject to a thorough background check and must meet the requirements for law enforcement certification.