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L3 Support Engineer Jobs in California (NOW HIRING)

Fortinet

Technical Support Engineer

Sunnyvale, CA · On-site

$88K - $107K/yr

As a Technical Support Engineer, you will: Provide direct technical web and telephone support to ... Strong understanding of TCP/IP, routing protocols, L2/L3 switches * Experience with security ...

Fortinet

Technical Support Engineer

Sunnyvale, CA · On-site

They are seeking a Technical Support Engineer to provide direct technical support to customers ... L3 switches • Experience with security products firewalls, IPSec, IDS/IPS, WIDS • Strong ...

Fortinet

Technical Support Engineer

Sunnyvale, CA

$88K - $107K/yr

As a Technical Support Engineer, you will: Provide direct technical web and telephone support to ... Strong understanding of TCP/IP, routing protocols, L2/L3 switches * Experience with security ...

Fortinet, Inc.

Technical Support Engineer

Sunnyvale, CA · On-site

$88K - $107K/yr

As a Technical Support Engineer, you will: Provide direct technical web and telephone support to ... Strong understanding of TCP/IP, routing protocols, L2/L3 switches * Experience with security ...

Fortinet, Inc.

Technical Support Engineer

Sunnyvale, CA · On-site

$88K - $107K/yr

As a Technical Support Engineer, you will: Provide direct technical web and telephone support to ... Strong understanding of TCP/IP, routing protocols, L2/L3 switches * Experience with security ...

Fortinet

Senior Technical Support Engineer

Santa Clara, CA · On-site

$87K - $107K/yr

Apply networking knowledge with a focus on L2, L3, L4, and L7. * Debug and troubleshoot networking ... Utilize engineering background to recreate customer issues in the lab and work with the engineering ...

Ross Stores, Inc

Engineer II

Dublin, CA · On-site +1

$113K - $195K/yr

It also includes providing L3 production support, troubleshooting complex data pipeline issues, and enhancing system reliability and performance. Additionally, the engineer collaborates with cross ...

Ross

Engineer II

Dublin, CA · On-site

$113K - $195K/yr

It also includes providing L3 production support, troubleshooting complex data pipeline issues, and enhancing system reliability and performance. Additionally, the engineer collaborates with cross ...

Ross Stores

Engineer II

Dublin, CA · On-site

$113K - $195K/yr

It also includes providing L3 production support, troubleshooting complex data pipeline issues, and enhancing system reliability and performance. Additionally, the engineer collaborates with cross ...

Ross Stores

Engineer II

Dublin, CA · On-site

$113K - $195K/yr

It also includes providing L3 production support, troubleshooting complex data pipeline issues, and enhancing system reliability and performance. Additionally, the engineer collaborates with cross ...

Ross Stores

Engineer II

Dublin, CA

$113K - $195K/yr

It also includes providing L3 production support, troubleshooting complex data pipeline issues, and enhancing system reliability and performance. Additionally, the engineer collaborates with cross ...

Ross Stores

Engineer II

Dublin, CA · On-site

$113K - $195K/yr

It also includes providing L3 production support, troubleshooting complex data pipeline issues, and enhancing system reliability and performance. Additionally, the engineer collaborates with cross ...

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L3 Support Engineer information

See California salary details

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$39

$67

How much do l3 support engineer jobs pay per hour?

As of Aug 17, 2026, the average hourly pay for l3 support engineer in California is $39.35, according to ZipRecruiter salary data. Most workers in this role earn between $29.18 and $46.01 per hour, depending on experience, location, and employer.

What is an L3 Support Engineer?

L3 Support Engineers, also known as Level 3 or Tier 3 support engineers, are technical experts who handle the most complex and advanced issues that cannot be resolved by lower-level support teams. They are responsible for diagnosing and troubleshooting escalated problems, often involving in-depth analysis of systems, software, or hardware. L3 Support Engineers may work directly with developers to resolve bugs, create patches, or suggest improvements, ensuring that critical technical issues are resolved efficiently. Their expertise is crucial for maintaining system stability and customer satisfaction in highly technical environments.

What are the key skills and qualifications needed to thrive as an L3 Support Engineer?

To thrive as an L3 Support Engineer, you need advanced troubleshooting abilities, deep technical expertise in relevant systems or applications, and typically a degree in computer science or a related field. Familiarity with diagnostic tools, scripting languages, ticketing systems (like ServiceNow or Jira), and relevant certifications such as ITIL or vendor-specific credentials are commonly required. Strong analytical thinking, communication skills, and a customer-centric mindset help in resolving complex issues and collaborating with cross-functional teams. These skills and qualities are vital for efficiently resolving high-level technical problems and maintaining system reliability in enterprise environments.

How does an L3 Support Engineer typically interact with other technical teams during complex incident resolution?

L3 Support Engineers often serve as the final escalation point for technical issues, collaborating closely with development, QA, and operations teams. During complex incidents, they work alongside L1 and L2 support to gather detailed information, then coordinate with product engineers or system architects to diagnose and resolve root causes. This role requires strong communication skills, as you'll often translate technical findings for both technical and non-technical stakeholders. Successful L3 engineers build cross-functional relationships, ensuring efficient problem-solving and continuous improvement of support processes.

What is the difference between L3 Support Engineer vs Network Support Engineer?

AspectL3 Support EngineerNetwork Support Engineer
CertificationsITIL, CompTIA Network+, Cisco CCNACCNA, CCNP, CompTIA Network+
Work EnvironmentData centers, enterprise IT, technical support teamsNetwork operations centers, enterprise networks, troubleshooting teams
Industry UsageIT services, tech companies, telecomTelecom, IT infrastructure, enterprise networking

Both roles require networking certifications like CCNA and involve troubleshooting complex technical issues. While L3 Support Engineers handle escalated technical problems across various IT systems, Network Support Engineers focus specifically on network infrastructure and connectivity. The roles often overlap in enterprise environments, but L3 Support Engineers typically have broader responsibilities across multiple systems, whereas Network Support Engineers specialize in network-related issues.

What are the most commonly searched types of L3 Support Engineer jobs in California?

The most popular types of L3 Support Engineer jobs in California are:

What are popular job titles related to L3 Support Engineer jobs in California?

For L3 Support Engineer jobs in California, the most frequently searched job titles are:

What job categories do people searching L3 Support Engineer jobs in California look for?

The top searched job categories for L3 Support Engineer jobs in California are:

L3 Support Engineer jobs near you
Infographic showing various L3 Support Engineer job openings in California as of August 2026, with employment types broken down into 100% Contract. Highlights an 100% In-person job distribution, with an average salary of $81,844 per year, or $39.3 per hour.

Technical Support Engineer

Fortinet

Sunnyvale, CA • On-site

$88K - $107K/yr

Other

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 8 days ago

Job description


Join Fortinet, a cybersecurity pioneer with over two decades of excellence, as we continue to shape the future of cybersecurity and redefine the intersection of networking and security. At Fortinet, our mission is to safeguard people, devices, and data everywhere. We are currently seeking a dynamic Technical Support Engineer to contribute to the success of our rapidly growing business.
You would act as the Technical Support Engineer for Switching and Wireless Team.
As a Technical Support Engineer, you will:
Provide direct technical web and telephone support to Fortinet customers including:
  • Support and troubleshooting on the wireless and switching range of Fortinet products
  • Collection, analysis and change recommendations of configuration information
  • Collection and analysis of customer network information
  • Collection and initial analysis of packet trace information
  • Recommend corrective actions based on analysis
  • Provide customer education where needed due to gaps in networking, product knowledge etc
  • Consultation of technical documentation, bulletins and release notes for known problems
  • Reproduction of customer environments on lab equipment
  • Follow up on technical cases including proper escalation and management of the case until case closure.
  • Manage customer communications and expectations until the closure of each case

We are looking for:
An insightful and influential collaborator to join our team. We encourage you to apply for this position if you have the following qualities:
  • Experience in a technical support role in a networking/security company or equivalent education
  • Strong understanding of WiFi 802.11 networks, 4G LTE experience.
  • Strong understanding of TCP/IP, routing protocols, L2/L3 switches
  • Experience with security products firewalls, IPSec, IDS/IPS, WIDS
  • Strong troubleshooting and problem solving skills
  • Extensive working knowledge of Windows, MACOs,UNIX or Linux
  • Previous call center experience, preferably supporting data networking products and/or security products is desirable.
  • Strong English skills both written and verbal.
  • Must be authorized to work in the U.S. without sponsorship

Must be authorized to work in the U.S. without sponsorship.
Educational Requirements:
Bachelor's degree in Computer Science, Software Engineering or related field, or an equivalent combination of training and experience is desirable
Why Join Us:
We encourage candidates from all backgrounds and identities to apply. We offer a supportive work environment and a competitive Total Rewards package to support you with your overall health and financial well-being.
Embark on a challenging, enjoyable, and rewarding career journey with Fortinet. Join us in bringing solutions that make a meaningful and lasting impact to our 660,000+ customers around the globe.
The US base salary range for this full-time position is $88,000 -$107,000. Fortinet offers employees a variety of benefits, including medical, dental, vision, life and disability insurance, 401(k), 11 paid holidays, vacation time, and sick time as well as a comprehensive leave program.
Wage ranges are based on various factors including the labor market, job type, and job level. Exact salary offers will be determined by factors such as the candidate's subject knowledge, skill level, qualifications, experience, and geographic location.
All roles are eligible to participate in the Fortinet equity program, Bonus eligibility is reviewed at time of hire and annually at the Company's discretion.

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