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.
Marine Electrician - San Diego
Company: KSARIA Corporation
Location: Lincoln Acres, CA
Posted Aug 03, 2025
Knowing and understanding the use of all tools of their trade such as multi-meters, pin crimper's, soldering and expected to accomplish the more complex tasks…
Security Guard - Armed Government Patrol
Company: Allied Universal
Location: San Jose, CA
Posted Aug 04, 2025
A valid driver's license in the state where the job is located is required and must meet Allied Universal driver policy requirements.
Armed Security Officer - Ship Yard
Company: Allied Universal
Location: San Diego, CA
Posted Aug 03, 2025
A valid driver's license will be required for driving positions only. As a condition of employment, applicants will be subject to a background investigation in…
Sheet Metal Worker
Company: Construction Services LLC
Location: San Diego, CA
Posted Aug 04, 2025
Set up tools, accessories and supplies at job site. Must have the ability to use hand and power tools safely and identify nuts and bolts according to size.
Maintenance Technician Industrial Electrician
Company: Howmet Aerospace
Location: Torrance, CA
Posted Aug 03, 2025
Perform mechanic skills including but not limited to, mechanical, electrical, pneumatic, hydraulic, troubleshooting, and repair of production machines.
Critical Facility Security Professional
Company: Allied Universal®
Location: San Diego, CA
Posted Aug 04, 2025
Answer questions and assist guests and employees; Answer phones or greet guests/ employees in a professional, welcoming manner.
Armed Security Officer - Public Transportation Site
Company: Allied Universal
Location: San Jose, CA
Posted Aug 04, 2025
Must have a valid driver's license in the state where the job is located and meet Allied Universal driver policy requirements for driving positions only.
Security Guard - Armed Patrol - Overnight Shift
Company: Allied Universal
Location: San Jose, CA
Posted Aug 04, 2025
A valid driver's license in the state where the job is located is required and must meet Allied Universal driver policy requirements.
Painter B&R
Company: International Marine and Industrial Applicators
Location: San Diego, CA
Posted Aug 04, 2025
Essential Job Requirements: Make certain surfaces are prepared for coating according to paint manufacturers' specifications; paint surfaces using approved…
Garage Door Installer/Technician
Company: Graham Garage Doors LLC
Location: San Jose, CA
Posted Aug 04, 2025
Strong troubleshooting, mechanical and power tool skills. We provide a company vehicle and basic tools. 4+ years in the garage door repair/installation industry…
Electrician A Class SDCA
Company: Austal USA
Location: San Diego, CA
Posted Aug 03, 2025
Supply own trade tools to be able to maintain productive output and perform 1st class electrical duties. Must comply with company, federal, state, and local…
Armed Security Officer - Public Transportation
Company: Allied Universal
Location: San Jose, CA
Posted Aug 04, 2025
A valid driver's license in the state where the job is located is required and must meet Allied Universal driver policy requirements for driving positions only.