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.
Data Scientist III
Company: Systems Planning and Analysis
Location: San Diego, CA
Posted Sep 17, 2025
The Data Scientist III position will develop and implement a set of techniques or analytics applications to transform raw data into meaningful information using…
Merchant Services Representative
Company: Dawson
Location: San Diego, CA
Posted Sep 16, 2025
Respond to customer product inquiries via telephone or in written internet-based email. Provide in-depth product support to clients by resolving incoming…
Data Analyst II
Company: BayOne
Location: San Jose, CA
Posted Sep 17, 2025
Establish relationships with partners in the regional businesses, product owners, engineering, incident management and risk operations organizations to set…
Sales Assistant -58161
Company: Pasona N A, Inc.
Location: Torrance, CA
Posted Sep 16, 2025
Answers and routing incoming phone calls. Follows up on all customer calls, and inquiries. Handles customer service complaints, products complaints, and…
Service Electrician (Mid-Level)
Company: Blue Streak Lighting & Electric
Location: Santa Clara, CA
Posted Sep 17, 2025
ET card or California electrician license. This role is for electricians who can work independently on service calls, troubleshoot circuits up to 480v, and…
Flex Security Guard (Overnight shifts)
Company: Security Services Group (S.S.G)
Location: San Jose, CA
Posted Sep 17, 2025
Responsible for checking-in visitors and issuing visitor badges. Must be disciplined to stay off your personal cell phone while on duty.
Carpenter
Company: RG BUILDERS INC
Location: Los Angeles, CA
Posted Sep 17, 2025
Ability to read blueprints and technical drawings accurately. Collaborate with other tradespeople on the construction site for electrical or plumbing tasks as…
Senior Service Electrician (Advanced / Lead)
Company: Blue Streak Lighting & Electric
Location: Santa Clara, CA
Posted Sep 17, 2025
The ideal candidate will demonstrate leadership in the field, mentor junior electricians, and ensure projects are completed to the highest standards of safety…
Digital Marketing Manager
Company: Motive Companies
Location: Los Angeles, CA
Posted Sep 17, 2025
Manage multi-channel digital campaigns, including social media, email, and e-commerce. Monitor campaign performance and optimize strategies based on analytics.
Customer Service Representative
Company: Fiesta Auto Insurance
Location: Chula Vista, CA
Posted Sep 17, 2025
With us, you will receive paid training, support, and the tools needed to pass your state insurance exam and receive your insurance license within your first 30…
Data Scientist Mid-Level
Company: Kiakahi
Location: San Diego, CA
Posted Sep 17, 2025
Software Engineering and testing to develop data analysis tools and event reconstruction. Three years of experience using Python and other programming tools to…
CNC Machinist (2nd Shift)
Company: Blue-White Industries, HB
Location: Huntington Beach, CA
Posted Sep 16, 2025
Experience with modern CNC machine tools and a thorough understanding of the machining process and efficient workflow. Comply with all Company policies.