Tech Jobs in Ontario, CA
172,782 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, PeriOp 101, Full Time, Days - Fellowship Program - Internal Candidates
Company: PIH Health
Location: Los Angeles, CA
Posted Aug 18, 2025
Delivers individualized quality patient care through a coordinated team approach with physicians, staff, other departments and the patient’s family.
Senior Site Reliability Engineer
Company: Tentek, Inc.
Location: Glendale, CA
Posted Aug 18, 2025
Systems Reliability Engineers use a software engineering approach to architect, design, automate, monitor, and build applications at scale.
Commercial Hvac Installer Foreman (8+yrs Exp)
Company: Future Air
Location: San Jose, CA
Posted Aug 18, 2025
Valid driver’s license and a clean driving record. Identify issues between drawing and field conditions to develop RFIs. • Hole cutting in metal ductwork.
CDL A Truck Driver - Power Partners
Company: NFI Industries Inc
Location: Long Beach, CA
Posted Aug 18, 2025
*LMC only – must have own operating authority*. Unlimited driver referral bonus: up to $2K, depending on location. 6+ months of tractor-trailer experience.
Part Time Security Officer - Shopping Complex
Company: Allied Universal®
Location: San Diego, CA
Posted Aug 18, 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…
Regional Plumbing Trainer
Company: Champions Group Holdings
Location: San Diego, CA
Posted Aug 18, 2025
Must be comfortable working in field environments, including customer homes and outdoor job sites. In this role, you’ll guide new trainees and certified…
Unarmed Security Guard
Company: 1St Street Bar
Location: Encinitas, CA
Posted Aug 17, 2025
Greet guests and provide a welcoming presence at the door. Requirements:* Must be *21+* and hold a *valid California Guard Card*.
Home Improvement Sales
Company: EI&C
Location: El Cajon, CA
Posted Aug 18, 2025
Valid CA drivers license with a clean driving record. Problem solving in the field, including resolving customer concerns and complaints.
Sr Software Engineer - Unreal (Interactive XR)
Company: The Walt Disney Studios
Location: Burbank, CA
Posted Aug 18, 2025
You will own the technical direction and optimize stakeholder satisfaction for a collection of internally developed products in addition to architecting and…
Cabinet Maker - Finish Carpenter
Company: 3RD AVE
Location: Monterey Park, CA
Posted Aug 17, 2025
Interpret schematics, blueprints, and technical drawings to fabricate components accurately, with guidance to adapt cabinet-making skills to scenic work.
Hospital Security Officer - Flex
Company: Allied Universal®
Location: San Jose, CA
Posted Aug 18, 2025
Current driver’s license if driving a company- or customer-owned vehicle. Graduate of a Certified Public Safety Academy (military or civilian) or verified work…
Security Officer - School
Company: Allied Universal®
Location: La Jolla, CA
Posted Aug 18, 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…