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.
CNC Lathe Machinist - 21504
Company: TalentZok
Location: Santee, CA
Posted Sep 23, 2025
Strong understanding of blueprints and technical drawings. Expertise in using precision measurement tools (calipers, micrometers, etc.).
Entry-Level Sales Associate
Company: Confidential
Location: Culver City, CA
Posted Sep 23, 2025
If you’re passionate about helping people stay connected, enjoy working in fast-paced environments, and want to launch a career in sales and customer engagement…
(Recent Graduate/Class of 2026 friendly) Full-Time Math Teacher
Company: Think Academy US
Location: San Jose, CA
Posted Sep 23, 2025
Must have valid work authorization to start (no sponsorship for this position). At Think Academy, we provide full cycle service to foster local children's…
Customer Support Representative
Company: Mason Services - Wireless
Location: El Cajon, CA
Posted Sep 23, 2025
As the Customer Support Representative, train on supporting customers, closing sales deals and answering customers questions about products and services in…
Preschool Substitute Teacher
Company: Discovery Isle Preschool
Location: Poway, CA
Posted Sep 23, 2025
Overseeing daily classroom operations and ensuring full compliance with state licensing regulations. A minimum of 6 months of teaching experience in a licensed…
Unarmed Site Supervisor - 1st Shift - Full Time
Company: Prosegur
Location: San Jose, CA
Posted Sep 23, 2025
Minimum one year of supervisory experience in security or a related field. Manage onboarding and field training for new staff.
Healthcare Protection Officer - Santa Clara
Company: Blackstone Consulting, Inc
Location: Santa Clara, CA
Posted Sep 23, 2025
Stay current on training and trends in the PWV field. Demonstrated ability to exercise independent judgment and employ strong reasoning skills.
Licensed Journeyman Plumber
Company: Davis Construction Plumbing, Inc.
Location: Los Angeles, CA
Posted Sep 23, 2025
Minimum 5 Years Experience Current Journeyman License Multi-family Housing Podium Deck Undgerground Available to Work Monday Thru Friday Must Have…
Customer Service Data Analyst
Company: Precision Castparts Corp.
Location: Gardena, CA
Posted Sep 23, 2025
Person, as defined in those regulations, and able to supply evidence of that qualification prior to starting work or be authorized to receive controlled…
Sous Chef
Company: LGO Hospitality
Location: Santa Monica, CA
Posted Sep 23, 2025
Must have ability and desire to develop and coach staff. Ideal candidate will have excellent organizational skills and an ability to think on their feet while…
Junior Accountant
Company: The Creme Shop
Location: Los Angeles, CA
Posted Sep 23, 2025
Bachelor’s degree in Finance, Accounting, Economics, or a related field. Assist in maintaining the general ledger by posting and verifying financial…
General Construction Laborer
Company: Clarketon Restoration
Location: San Diego, CA
Posted Sep 23, 2025
Valid driver’s license and reliable transportation. This role requires experience in various aspects of construction, including site preparation, material…