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.
Customer Service Representative Semiconductor
Company: iTest, Inc.
Location: San Jose, CA
Posted Jul 31, 2025
Monitor and reporting progress between customers and the operation team. Work with the customer service manager to ensure proper customer service is being…
Plumber Apprentice
Company: TRM Services
Location: Los Angeles, CA
Posted Jul 31, 2025
Must possess a current driver’s license with a clean driving record. Applicant must reply by forwarding a resume (does not need to be fancy) and copy of current…
Project Manager - Civil Construction - $130-$160k
Company: Peterson Consulting
Location: San Diego, CA
Posted Jul 31, 2025
4-year degree in a relevant field. Negotiated project experience preferred, including technical writing skills. Base Salary $130k-$160k, DOE.
Sales Associate
Company: Telecom Acq Partners
Location: San Diego, CA
Posted Jul 31, 2025
The Sales Associate will also develop sales strategic initiatives aligned with our business objectives. Excellent verbal and written communication abilities,…
CDL Truck Driver (Class A)
Company: Liquid Environmental Solutions
Location: Lakeside, CA
Posted Jul 31, 2025
Valid California CDL Class A license required. Minimum of 1 year commercial or military driving experience (Required). Ability to lift 55 lbs or more.
Service Plumber
Company: AQUATEK PLUMBING INC
Location: San Jose, CA
Posted Jul 31, 2025
Must have a valid driver's license and have a good driving record. Utilize hand tools, and power tools to complete plumbing projects.
Registered Nurse (RN) II (ICU) *$10K Sign-On Bonus*
Company: Pipeline Health
Location: East Los Angeles, CA
Posted Jul 31, 2025
Current Registered Nurse (RN) license in the state of practice. Collaborate with multidisciplinary teams to develop and implement individualized care plans.
Aesthetic Registered Nurse PT - Campbell
Company: Skin Laundry
Location: Campbell, CA
Posted Jul 31, 2025
Attentive, able to listen and read customers to ensure high Skin Laundry standards are always met. Assists with training (precepting), coaching, and developing…
Marketing Brand Manager
Company: Ultimate Staffing Services
Location: San Diego, CA
Posted Jul 31, 2025
For unincorporated Los Angeles county, to the extent our customers require a background check for certain positions, the Company faces a significant risk to its…
AT&T Customer Service Representative
Company: Telecom Acq Partners
Location: Otay Mesa, CA
Posted Jul 31, 2025
As AT&T Customer Service Representative you will be responsible for driving sales through outreach and by building strong relationships, delivering engaging…
Software Engineer, Product
Company: Aptos Labs
Location: Palo Alto, CA
Posted Jul 31, 2025
Leading initiatives to design, build, and optimize Web3 products and applications for Aptos. 2+ years of experience leading technical teams.
Senior Software Engineer
Company: Rocket EMS
Location: Santa Clara, CA
Posted Jul 31, 2025
Lead technical design discussions and contribute to architectural decisions. As a senior team member, you will mentor junior engineers, lead technical projects,…