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.
Chefs' Toys Sales Associate
Company: TriMark USA
Location: San Diego, CA
Posted Aug 26, 2025
In addition to assisting customers, you will be responsible for achieving sales goals, handling quotes and bids, and conducting active outreach to both lapsed…
Accounting Manager/Supervisor
Company: Robert Half
Location: Santa Clara, CA
Posted Aug 26, 2025
Establish cost controls and scalable cost accounting processes to support production growth, ensuring accurate product costing and margin analysis.
Janitor(FT)
Company: The Forum at Rancho San Antonio
Location: Cupertino, CA
Posted Aug 26, 2025
This position is responsible for major floor care projects and trash disposal. Up to $40.00 monthly provided meal card for on-site market.
Senior Tax Accountant
Company: SNOW KING(US) CORPORATION
Location: Los Angeles, CA
Posted Aug 26, 2025
Handle monthly, quarterly, and annual tax accruals (including corporate income tax, VAT year-end carryforward, and other taxes/fees, excluding daily VAT…
STAFF SERVICES ANALYST
Company: Department of Social Services
Location: Los Angeles County, CA
Posted Aug 26, 2025
We maintain the integrity of the state hearing process, provide efficient administration of the state hearing process, communicate with counties, claimants, and…
Janitor
Company: Trojan Storage
Location: Los Angeles, CA
Posted Aug 26, 2025
Valid driver’s license, insurance, and working transportation required to travel between properties or conduct other work-related business.
Retail Sales - Valley Fair
Company: Nordstrom Inc
Location: San Jose, CA
Posted Aug 26, 2025
Set and achieve sales goals, for both in-store and digital selling with effective use of selling tools (inclusive of text and social media).
Software Engineer Graduate (Ads Infrastructure) - 2026 Start (BS/MS)
Company: TikTok
Location: San Jose, CA
Posted Aug 26, 2025
Minimum Qualifications - Bachelor's degree in computer science or related technical disciplines. Provide technical leadership and guidance to team members and…
Part-Time Retail Sales Associate - Fashion Valley
Company: Fast Retailing
Location: San Diego, CA
Posted Aug 26, 2025
Act as cashier when required by following cashier protocol. Be knowledgeable of fitting room standards and assist when needed. Meet and exceed sales goals.
Business Operations Analyst
Company: Stanford Health Care
Location: Palo Alto, CA
Posted Aug 26, 2025
Creates process maps to display current state and future state workflows. Bachelor's degree in a work-related discipline/field from an accredited college or…
HVAC Technician
Company: CBRE
Location: San Jose, CA
Posted Aug 26, 2025
A valid driver's license is required. Certification in two or more of the following: Electrical, mechanical, HVAC, and refrigeration systems, process controls,…
Float Pharmacist
Company: UCLA Health
Location: Los Angeles, CA
Posted Aug 26, 2025
Pharm D. degree and current CA Pharmacy license. As a Float Pharmacist at UCLA Health, you’ll play a vital role in delivering safe, effective, and patient-…