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.
Software Power Systems Engineer
Company: Apple
Location: San Diego, CA
Posted Aug 03, 2025
This provides the opportunity to progress as you grow and develop within a role. You will also be able to develop software to help with triage of such issues,…
Security Guard
Company: Prosegur
Location: Milpitas, CA
Posted Aug 03, 2025
Certification in first aid and CPR is preferred; willingness to obtain certification if not currently held. Utilize surveillance equipment such as CCTV systems…
Mon–Fri, 11:00 AM–7:30 PM – Entry-Level Book Binding Operator | Immediate Openings + Benefits
Company: Printivity
Location: San Diego, CA
Posted Aug 03, 2025
*FREE College-*Earn an Associate's or Certifications in any field you choose. This is an entry-level position with opportunities for performance-based raises…
Sales and Marketing
Company: Smarter circle worldwide
Location: Los Angeles, CA
Posted Aug 03, 2025
As a Marketing & Sales Associate, you’ll be on the front lines of customer acquisition and brand engagement. Track performance metrics using digital tools (CRM…
Accountant I
Company: Cal State University (CSU) San Jose
Location: San Jose, CA
Posted Aug 03, 2025
(i.e. GAAP Journal Entries, WDesk Footnotes, PBCs required by the CO, SCO, or external auditors) Provide input to the documentation and maintenance of business…
Busy Practice looking for motivated OMS
Company: Sierra Foothills Oral Surgery
Location: Natomas, CA
Posted Aug 03, 2025
Custodian
Company: Volunteers of America Los Angeles
Location: Los Angeles, CA
Posted Aug 03, 2025
Follows daily checklist provided by supervisor; Assures tools and supplies are stocked and appropriately secured in store rooms; maintains cleanliness and order…
Machine Operator
Company: Core Systems
Location: San Diego, CA
Posted Aug 03, 2025
May also fabricate and modify parts to make or repair machine tools or maintain industrial machines, applying knowledge of mechanics, mathematics, metal…
Registered Nurse (RN Hospice)- Full Time - Alameda, Santa Clara and San Benito
Company: ProHealth Home Care, Inc.
Location: San Jose, CA
Posted Aug 03, 2025
Current Registered Nurse (RN) license in the state of CA. BLS/CPR certification required; additional certifications such as ACLS or wound care certification…
Welder
Company: International Marine and Industrial Applicators
Location: San Diego, CA
Posted Aug 02, 2025
Must have own basic skill related tools and equipment if not supplied by the workplace. Weld steel, aluminum and stainless steel components based on the…
Board Certified Behavioral Analyst- San Diego - EBSH Home experienced
Company: Redwood Family Care Network
Location: San Diego, CA
Posted Aug 03, 2025
Master’s degree in related field preferred, BCBA credential required. This position will require a valid California ID or Driver’s License.
Ship/Submarine Welder 5 - San Diego, CA
Company: M.C. Dean, Inc
Location: San Diego, CA
Posted Aug 02, 2025
You must have a valid driver's license. One (1) other relevant technical certification or qualification such as American Welding Society (AWS) Certified Welding…