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.
Security Officer I - Part Time - San Diego Zoo
Company: San Diego Zoo Wildlife Alliance
Location: San Diego, CA
Posted Jul 25, 2025
California driver's license Upon Hire. Responds to and supports calls for medical assistance/emergency situations and work at dispatch center as needed.
Security Agent - Laidback Luxury in La Jolla
Company: Estancia La Jolla, A Noble House Hotel
Location: San Diego, CA
Posted Jul 25, 2025
Our Security Agent will maintain positive guest relations at all times, while ensuring the security of the resort. PTO, Complementary Parking, and Meals.
Electrician
Company: Volt Electric, Inc
Location: San Diego, CA
Posted Jul 25, 2025
Must be familiar with installation of commercial and residential electrical work: Underground, Lighting, Lighting Control, Branch Wiring (Romex ,M/C Cable, EMT,…
Project Manager
Company: Private Family Estate
Location: Santa Monica, CA
Posted Jul 25, 2025
Standardize and implement organizational-wide project management methodologies to enhance operational efficiency and achieve strategic business outcomes.
Project Manager, EM-CRU, Emergency Medicine (Hybrid Opportunity)
Company: Stanford University
Location: Stanford, CA
Posted Jul 25, 2025
Specifically, this person will 1) engage with physician-investigators to operationalize their research projects or clinical trials, 2) liase with and manage…
Security Guard – Guard Card REQUIRED -Transitional Living Center / PART TIME
Company: CODE 4 PRIVATE SECURITY INC
Location: Campbell, CA
Posted Jul 25, 2025
Screening all residents before entry. Assisting staff with room checks when necessary. Conduct regular surveillance using CCTV systems to identify and address…
Welder II
Company: EPSILON SYSTEMS
Location: San Diego, CA
Posted Jul 25, 2025
Knowledge of design techniques, tools, and principals involved in production of precision technical plans, blueprints, drawings, and models.
CNC Lathe Machinist and Programmer
Company: WORKERS.COM
Location: San Jose, CA
Posted Jul 25, 2025
Collaborate with engineering and production teams to develop and implement new machining strategies. Ability to read and interpret technical drawings,…
SIEM Analyst
Company: NUBYT, Inc.
Location: San Jose, CA
Posted Jul 25, 2025
Experience with vulnerability management tools such as Tenable or Rapid7 Insight VM; familiarity with other scanning tools is a plus.
Senior Solutions Architect (5G/AI)
Company: Palo Alto Networks
Location: Santa Clara, CA
Posted Jul 25, 2025
Cross-functional Leadership - collaborate with PM, Engineering, Sales, and Partner Ecosystem teams. Familiar with various AI related attack vectors (model…
Project Manager - Facilities relocation
Company: Confidential
Location: San Jose, CA
Posted Jul 25, 2025
Applies knowledge of technical standards, principles, theories and concepts. Oversee project budget and scope competitive bids for relocation.
Construction Sales/Project Manager
Company: Barrett Business Services
Location: El Cajon, CA
Posted Jul 25, 2025
Resolve field issues as they arise by coordinating solutions between crews, vendors, and clients. Autonomy to manage your own schedule and territory.