Tech Jobs in Ontario, CA
172,845 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.
Registered Nurse (RN) Cath Lab - Full Time - Days
Company: Stanford Health Care Tri-Valley
Location: Pleasanton, CA
Posted Jul 29, 2025
The RN performs all the steps of the nursing process including assessing patients, interpreting data, planning, implementing and evaluating care.
Business Strategy Analyst, Athletics
Company: USC
Location: Los Angeles, CA
Posted Jul 29, 2025
The ideal candidate will have a bachelor’s degree (preferably in economics, business, data analytics, computer science, business intelligence, statistics, or…
Electrician Journeyperson
Company: BAE Systems
Location: San Diego, CA
Posted Jul 29, 2025
Our leave programs include paid time off, paid holidays, as well as other types of leave, including paid parental, military, bereavement, and any applicable…
Pipe Welder A Class - SDCA
Company: Austal USA
Location: San Diego, CA
Posted Jul 29, 2025
Must comply with company, federal, state, and local safety and environmental rules and regulations while performing daily job tasks.
Principal, IT Software Engineer 2
Company: DIRECTV
Location: El Segundo, CA
Posted Jul 29, 2025
Articulate and present technical solutions to both technical and non-technical stakeholders. Bachelor’s degree in a technical field or equivalent experience…
CNC Setup Machinist
Company: ITT Cannon LLC
Location: El Cajon, CA
Posted Jul 29, 2025
Collaborate with programmers and engineers to refine machining strategies and resolve technical challenges. Interpret blueprints, CAD models, and setup sheets…
Commission Sales Associate - Womens Shoes, Full Time - Fashion Valley
Company: Bloomingdale’s
Location: San Diego, CA
Posted Jul 29, 2025
Frequent use of computers and other technology, necessary to perform job functions, including handheld equipment, cash register and ability to process register…
Registered Nurse (RN) ICU Full Time Days
Company: Stanford Health Care Tri-Valley
Location: Pleasanton, CA
Posted Jul 29, 2025
Relevant departmental certification as required (see addendum). The RN performs all the steps of the nursing process including assessing patients, interpreting…
A Class Structural Welder - SDCA
Company: Austal USA
Location: San Diego, CA
Posted Jul 29, 2025
Must comply with company, federal, state, and local safety and environmental rules and regulations while performing daily job tasks.
Security Officer I - Security - Sharp Grossmont Hospital - Evening Shift - Full Time
Company: Sharp Healthcare
Location: La Mesa, CA
Posted Jul 29, 2025
Responds to routine calls in a timely manner. Sort, perform data entry, distribute, and file reports. This includes location of fire alarm boxes, emergency…
Registered Nurse - RN / Emergency Room Pediatric - ER-PED
Company: Cross Country Nurses
Location: Stanford, CA
Posted Jul 29, 2025
Once the patient is stabilized and their medical problem is treated, you will then determine whether the patient should be discharged or make arrangements for a…
Plumbing Service Tech - San Jose, CA
Company: Atlas Trillo Heating & Air Conditioning
Location: San Jose, CA
Posted Jul 29, 2025
Valid driver’s license with good driving record. Diagnose and repair residential plumbing systems including water heaters, sewer mains, water service lines,…