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.
Maintenance Coordinator/Customer Service
Company: Property Management
Location: Valley Village, CA
Posted Oct 01, 2025
Answers incoming calls professionally, timely and transfers to the appropriate individual. Conducts daily courtesy next day follow up calls to residents…
Pharmacist- Temporary-FT
Company: Grand Lodge, Masonic Homes & Acacia Creek
Location: Union City, CA
Posted Oct 01, 2025
Answers pharmacy telephone calls and assists the residents or staff with refills and other medication-related questions. Working 1-2 days per week on average.
Cabinetry Finisher
Company: AllWood.Design
Location: San Diego, CA
Posted Oct 01, 2025
The role involves finishing, lacquering, and painting cabinet doors and other wooden materials in our spray booth. Position:* Part-time or Full-time.
Journeyman Electrician
Company: Gillies Electric
Location: Los Angeles, CA
Posted Oct 01, 2025
We are seeking an experienced professional who is thoroughly familiar with all aspects of electrical work and can perform tasks autonomously.
TEACHER - MUST HAVE TEACHING PERMIT -Issued by CCTC
Company: CALIFORNIA CHILDRENS ACADEMY
Location: Los Angeles, CA
Posted Oct 01, 2025
Maintains working knowledge of current practices in the early childhood education and pursues professional growth within the field.
Plumber - Apartment Buildings
Company: Property Management
Location: Valley Village, CA
Posted Oct 01, 2025
Install pipe assemblies, fittings, valves, appliances such as dishwashers and water heaters, and fixtures such as sinks and toilets, using hand and power tools.
Manager, Customer Service
Company: Santa Clara Family Health Plan
Location: San Jose, CA
Posted Oct 01, 2025
Work cross-functionally with other business units to identify trends driving call volumes and support initiatives to identify and implement interventions to…
Framing
Company: Agile Staffing, Inc.
Location: Anaheim, CA
Posted Oct 01, 2025
Previous experience with power tools (i.e. saw, automatic joiner, staple gun, air compressor). Previous woodshop experience; minimum 6 months.
Plumber Technician
Company: Unlimited Master Plumbing
Location: San Jose, CA
Posted Oct 01, 2025
Valid driving license is advantageous for transporting tools and materials as needed. Utilize hand tools and power tools for installation tasks, ensuring proper…
[Local 39] Stationary Engineer
Company: Cushman & Wakefield
Location: Sunnyvale, CA
Posted Oct 01, 2025
Possess and maintain a valid driver’s license and good driving record with periodic checks (where applicable). Document and report activities to supervisor.
Building Engineer
Company: HVAC Recruitment
Location: San Diego, CA
Posted Oct 01, 2025
As a Building Engineer, you’ll maintain *critical HVAC, electrical, plumbing, and mechanical systems*, and contribute to a *high-performing facilities team*.
Mod/Severe SPED Role – Escondido | Travel Incentives for Out-of-Area Educators ($1500 Sign-On Bonus!)
Company: Amergis Healthcare Staffing
Location: San Diego, CA
Posted Oct 01, 2025
Valid state teaching certificate as required by state,contract/district regulations. Minimum of one year experience in teaching environmentpreferred.