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.
Mgr Software Engineering
Company: Disney Entertainment and ESPN Product & Technology
Location: Santa Monica, CA
Posted Aug 21, 2025
8+ years of professional software engineering experience, with at least 2 years in a formal engineering management or technical leadership role.
Housekeeping/EVS Tech - Evening - San Diego
Company: Scripps Health
Location: San Diego, CA
Posted Aug 21, 2025
The housekeeping team performs job functions to support environmental care: (patient care area cleaning, non-patient care area cleaning, linen service, waste…
Art Transportation Specialist - CDL A,
Company: Crozier Fine Arts
Location: Los Angeles, CA
Posted Aug 21, 2025
Must have valid driver’s license*. *Install/de-install artworks during onsite projects using proper techniques and tools.*. *Paid by the mile .46 Cent *.
Senior Python Developer – Algorithms, Data
Company: Bonfy.AI
Location: Mountain View, CA
Posted Aug 21, 2025
Background working with ML APIs, transformers, or other applied AI tools. Proven ability to design and ship production-grade software at scale.
Plumber
Company: Rebel plumbing
Location: San Diego, CA
Posted Aug 21, 2025
Valid commercial driving license preferred for transportation of materials to job sites. Utilize hand tools and power tools effectively for various plumbing…
Data Analyst
Company: Super Micro Computer
Location: San Jose, CA
Posted Aug 21, 2025
2+ years of experience in data analytics, business intelligence, or a related field. Bachelor's degree in a quantitative field (e.g., Statistics, Mathematics,…
Plumbing Estimator
Company: Ultimate Staffing Services
Location: El Cajon, CA
Posted Aug 21, 2025
Duties also include on site and/or In-house estimating where candidate will work with professionals in design firms on design-assist and design-build projects…
Workday Certified Time Tracking/Absence Lead
Company: Accenture
Location: San Diego, CA
Posted Aug 21, 2025
Identify strategies, risks, and options, recommend approaches and mitigations to meet client/functional requirements. Travel may be required for this role.
Marine Electrician II or III
Company: Continental Tide Defense System INC.
Location: Lincoln Acres, CA
Posted Aug 21, 2025
Applicant must be familiar with NAVSEA, standard concepts, practices, and procedures within the field of electrical repair, fabrication, and installation.
Staff Accountant
Company: Lovisa
Location: Torrance, CA
Posted Aug 21, 2025
Manage automated reconciliation of cash and credit card receipts to point of sale receipts, investigate any variances. Bachelor's degree in Accounting.
Wireless Sales Assistant
Company: Uno Executives
Location: Santa Clara, CA
Posted Aug 21, 2025
Assist in training and mentoring entry-level team members as they develop their client management and sales skills.
JANITOR
Company: Almaden Health and Rehabilitation Center
Location: San Jose, CA
Posted Aug 21, 2025
Knocks before entering resident rooms and bathrooms. Provides housekeeping services to provide a safe, sanitary and comfortable environment for residents, staff…