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.
RN House Supervisor
Company: NCW Staffing Inc
Location: San Diego, CA
Posted Aug 21, 2025
*Must have current CA RN license*. *Must have current BLS certification with AHA*. *Must have current Covid-19 Vaccination*. *Shift: 07:00 PM to 07:30 AM*.
Machine Operator
Company: Lyneer Staffing Solutions
Location: Carson, CA
Posted Aug 21, 2025
Use measuring tools such as rulers, scales, and calipers for precision. Experience with measuring tools (ruler, scale, calipers). *Pay:* $20.00 – $25.00.
Ad-Hoc Motion Graphic Designer
Company: Ani & Cat
Location: San Jose, CA
Posted Aug 21, 2025
Create and animate motion graphics for video, presentations, and social media. Strong typography, layout, and design sense.
Aerospace Program Manager (flexible schedule with remote work)
Company: Coronado Manufacturing
Location: Sun Valley, CA
Posted Aug 21, 2025
Work closely with engineering and manufacturing teams to ensure technical requirements are understood and executed. BS or BA required (or the work equivalent).
Regulatory Affairs Project Manager
Company: Kelly Services
Location: Torrance, CA
Posted Aug 21, 2025
In addition, employees are entitled to earn paid sick leave under the applicable state or local plan. Minimum 5 years in regulatory affairs within the cosmetics…
AT&T Customer Service Associate
Company: Confidential
Location: Fremont, CA
Posted Aug 21, 2025
Identify opportunities for improvement and contribute new ideas during staff meetings to upper management for discussion and implementation.
Accounting Manager
Company: Suna Solutions
Location: San Diego, CA
Posted Aug 21, 2025
Bachelor's degree in Accounting, Finance, or related field preferred. Prepare cash reports and process cash-related journal entries (transfers, wires, PR-…
Head Accountant for Technology Startup
Company: Ascendo Resources
Location: San Jose, CA
Posted Aug 21, 2025
This individual will oversee the company’s accounting team and play a critical role in preparing financial statements, ensuring compliance with GAAP, GAAS, and…
Lead Custodian - Multiple Sites Available
Company: San José Unified School District
Location: San Jose, CA
Posted Aug 21, 2025
The impact you will have: As a Lead Custodian you will manage facility operations, including cleaning and maintenance, in an efficient and safe way to meet…
Attic Insulation Installer
Company: Maravilla Foundation
Location: Commerce, CA
Posted Aug 21, 2025
Valid Driver license with 3 years of driving experience. Ensure safety and compliance protocols of state, federal, OSHA, EPA, and building code are thoroughly…
Journeyman HVAC Installer
Company: Essel Environmental
Location: Manhattan Beach, CA
Posted Aug 21, 2025
Perform field service tasks, including inspections and diagnostics of HVAC equipment. Knowledge of HVAC design principles for efficient system layout and…
Accountant
Company: Premier Financial Search
Location: Santa Monica, CA
Posted Aug 21, 2025
CPA license a plus but not required. *Accounts Payable/Receivable:* Process invoices, payments, and receipts; manage cash balances; ensure accuracy across…