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.
Hull Welder Repair/Fabrication Technician I
Company: EPSILON SYSTEMS
Location: Imperial Beach, CA
Posted Oct 01, 2025
Ability to work in a field environment for extended periods (and in some cases, areas of extreme heat and humidity such as Guam, Djibouti, Bahrain, etc).
Travel Cath Lab RN
Company: Fusion Medical Staffing
Location: Santa Monica, CA
Posted Oct 01, 2025
Valid RN license in compliance with state regulations. Assist in arterial and/or venous sheath removal using closure devices, manual pressure, or mechanical…
Travel Cath Lab RN
Company: Fusion Medical Staffing
Location: Los Angeles, CA
Posted Oct 01, 2025
Valid RN license in compliance with state regulations. Assist in arterial and/or venous sheath removal using closure devices, manual pressure, or mechanical…
Supply Chain Data Analyst
Company: Facebook App
Location: Fremont, CA
Posted Oct 01, 2025
BA/BS in Computer Science, Mathematics, Statistics, engineering, or a related technical field. MS in computer science, mathematics, statistics or a related…
AI Engineering Manager 2
Company: Northrop Grumman
Location: Los Angeles, CA
Posted Oct 01, 2025
Take responsibility for technical guidance and oversight in developing technical and cost proposals. Bachelor’s of Science in a STEM discipline and a minimum of…
Project Manager
Company: EI&C
Location: Santa Clara, CA
Posted Oct 01, 2025
Familiarity with driving routes and navigating different areas. Drive a truck or van to transport items to their destination. Must be able to lift 50 lbs.
Sales and Marketing Director
Company: Confidential
Location: San Jose, CA
Posted Oct 01, 2025
We are looking for experienced professionals in senior housing or luxury leasing sales. Salary range: $85k-$90k base plus a bonus structure.
Executive Chef 3
Company: Sodexo
Location: San Jose, CA
Posted Oct 01, 2025
Ensure consistent quality, presentation, and guest satisfaction. Manage kitchen operations, food safety, and team development.
Registered Nurse (RN) Emergency
Company: Adventist Health
Location: Glendale, CA
Posted Oct 01, 2025
Registered Nurse (RN) licensure in the state of practice: Required. Cardiopulmonary Resuscitation (CPR) or Basic Life Support (BLS OR HS-BLS OR RQIBLS)…
Welder (2nd shift)
Company: BAE Systems
Location: San Diego, CA
Posted Oct 01, 2025
Able to use hand tools and power tools safely and efficiently. Our leave programs include paid time off, paid holidays, as well as other types of leave,…
Business Data Analyst
Company: Elwood Professional
Location: Carson, CA
Posted Oct 01, 2025
This role is highly cross-functional, where you will own the data backbone for various projects with a primary focus on project budgeting.
Software Engineering Manager 1
Company: Northrop Grumman
Location: Los Angeles, CA
Posted Oct 01, 2025
Responsible for technical guidance and oversight in developing technical and cost proposals. The technical role will focus on algorithmic application…