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.
CDL A Reefer Truck Driver - OTR
Company: Double J Transport, LLC
Location: Los Angeles, CA
Posted Oct 01, 2025
$0.15 cpm per diem (pre-tax) OPTIONAL. 1 Year of CDL A Truck Driving Experience (Not Including Mentorship Periods). Out 12 - 14 Days, 2 - 3 Days Home.
Plumbing Service Technician
Company: Service Champions Heating & Air Conditioning
Location: San Jose, CA
Posted Oct 01, 2025
As a Plumber, you will be responsible for conducting Water Heater flush calls, Diagnostics, plumbing safety audits, and drain cleaning calls.
CDL A Reefer Truck Driver - OTR
Company: Double J Transport, LLC
Location: San Jose, CA
Posted Oct 01, 2025
$0.15 cpm per diem (pre-tax) OPTIONAL. 1 Year of CDL A Truck Driving Experience (Not Including Mentorship Periods). Out 12 - 14 Days, 2 - 3 Days Home.
Skilled Construction Worker / General Laborer
Company: Zero Impact Builders
Location: Alum Rock, CA
Posted Oct 01, 2025
Valid driver’s license and dependable transportation. All qualified applicants will receive consideration for employment without regard to race, color, religion…
Board Certified Behavioral Analyst (BCBA)
Company: Redwood Family Care Network
Location: Granada Hills, CA
Posted Oct 01, 2025
Master’s degree in related field preferred, BCBA credential required. This position will require a valid California ID or Driver’s License.
CDL A Reefer Truck Driver - OTR
Company: Double J Transport, LLC
Location: Anaheim, CA
Posted Oct 01, 2025
We are seeking over the road Class A CDL reefer truck drivers. Double J Transport is a third-generation family-owned trucking company where you are known by…
Customer Enrollment Representative
Company: TKO Management
Location: San Jose, CA
Posted Oct 01, 2025
Stay up to date on all services to answer customer questions thoroughly. The Customer Enrollment Representative will be empathetic to listen to needs and be…
Plumbing Installer
Company: Service Champions Heating & Air Conditioning
Location: San Jose, CA
Posted Oct 01, 2025
A valid Driver's License and clean driving record. Minimum of 5 yrs as a licensed driver & clean DMV record. Wrench Group and its affiliates comply with federal…
Concrete Finisher
Company: Zero Impact Builders
Location: Alum Rock, CA
Posted Oct 01, 2025
Ability to read and interpret technical drawings. Familiarity with hand and power tools like shovels, rakes, mixer, forklifts, and power washer.
Board Certified Behavioral Analyst (BCBA)
Company: Redwood Family Care Network
Location: Canoga Park, CA
Posted Oct 01, 2025
Master’s degree in related field preferred, BCBA credential required. This position will require a valid California ID or Driver’s License.
Project Manager
Company: Universal Studios Hollywood
Location: Universal City, CA
Posted Oct 01, 2025
Works with the general contractors, vendors for site/construction sequence and logistics with general contractors, vendors and USH project team with regards to…
Water Heater Installer
Company: Service Champions Heating & Air Conditioning
Location: San Jose, CA
Posted Oct 01, 2025
Valid driver’s license, with 5+ years of driving experience. Cutting, assembling, and installing water pipes, drain lines and electrical wiring with attention…