Tech Jobs in Ontario, CA
172,812 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.
Registered Nurse Surgical Telemetry (1West) Full Time Days
Company: Stanford Health Care Tri-Valley
Location: Pleasanton, CA
Posted Aug 12, 2025
Relevant departmental certification as required (see addendum). The RN performs all the steps of the nursing process including assessing patients, interpreting…
Software Engineer - Backend Systems
Company: Apple
Location: San Diego, CA
Posted Aug 12, 2025
Experience leading the technical development of larger features and collaborating across organizational boundaries.
Founding Full Stack Engineer
Company: ISG Search Inc
Location: Menlo Park, CA
Posted Aug 12, 2025
We are hiring a seasoned, staff-level full-stack engineer to own the backend and infrastructure, with light mobile touchpoints.
Electrician
Company: IRBIS HVAC Inc
Location: San Jose, CA
Posted Aug 12, 2025
Valid driver’s license with a clean driving record. Must provide own hand tools. Performing electrical panel upgrades when needed.
Director, Cost & Inventory Accounting
Company: GRAIL, Inc.
Location: Menlo Park, CA
Posted Aug 12, 2025
Lead cross-functional discussions, diving deep into lab and ancillary processes to provide technical accounting guidance in compliance with US GAAP, ensure…
Cost Accounting Manager
Company: GRAIL, Inc.
Location: Menlo Park, CA
Posted Aug 12, 2025
Perform month/quarter end financial close processes related to cost of revenue, including posting and reviewing of JEs, flux analysis, and reconciliations.
Graphics Designer
Company: Apple
Location: Cupertino, CA
Posted Aug 12, 2025
Experience with developing video content in all phases - content, design, animation, and prototyping. Develop and execute a variety of projects that range from…
Carpenter - TP136334
Company: UC San Diego
Location: San Diego, CA
Posted Aug 12, 2025
Journey-level skill and knowledge in the carpentry and cabinet making trade, including, but not limited to, framing, finish carpentry, cabinet making, laminate…
Database Architect (Contract)
Company: Indigenous Pact PBC, Inc.
Location: San Diego, CA
Posted Aug 12, 2025
As a Database Architect, you will play a critical role in leading the design and implementation of Indigenous Pact's enterprise data architecture and modern…
Data Scientist- Data Cloud
Company: Apple
Location: San Diego, CA
Posted Aug 12, 2025
In your role as a Data Scientist you will: * Design and implement complex analytical models using dbt, SQL, and Python * Optimize and create data extraction…
Field Service Representative / Driver
Company: Arjo Inc.
Location: San Jose, CA
Posted Aug 12, 2025
This position is contingent upon obtaining and maintaining a valid Department of Transportation (DOT) medical certificate, with medical clearance for a minimum…
Special Education Teacher (SPED)
Company: The Stepping Stones Group
Location: Lennox, CA
Posted Aug 12, 2025
Valid state license or certification for Special Education Teaching (mild/mod certification). Empowering Students - Help kids shine with your innovative…