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Technical Support Engineer L3 Jobs (NOW HIRING)

Fortinet, Inc.

Technical Support Engineer

Sunnyvale, CA · On-site

$90K - $110K/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

$90K - $110K/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

$90K - $110K/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

$90K - $110K/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 ...

Linuxcareers

Technical Support Engineer

Sunnyvale, CA · On-site

As a Technical Support Engineer, you will triage customer tickets, perform initial debugging ... Strong networking fundamentals with clear understanding of packet flow (L1-L3) and common failure ...

Zoomcar

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 ...

Socket.dev

NY · On-site

We are seeking a Technical Support Engineer to support our world-class packet microwave and ... Working knowledge of L2/L3 networking and protocols, including VLANs, routing, and SNMP, as applied ...

New

Intracom Telecom

Technical Support Engineer

Miami, FL · Remote

We are seeking a Technical Support Engineer to support our world-class packet microwave and ... Working knowledge of L2/L3 networking and protocols, including VLANs, routing, and SNMP, as applied ...

Intracom Telecom

Technical Support Engineer

Miami, FL · On-site

We are seeking a Technical Support Engineer to support our world-class packet microwave and ... Working knowledge of L2/L3 networking and protocols, including VLANs, routing, and SNMP, as applied ...

Intracom Telecom

Technical Support Engineer

Miami, FL · On-site +1

We are seeking a Technical Support Engineer to support our world-class packet microwave and ... Working knowledge of L2/L3 networking and protocols, including VLANs, routing, and SNMP, as applied ...

Coram

Technical Support Engineer

Sunnyvale, CA · On-site

As a Technical Support Engineer, you will be on the front line, triaging customer tickets (via ... Strong networking fundamentals with a clear understanding of packet flow (L1-L3) and common failure ...

Fortinet, Inc.

Technical Support Engineer

Atlanta, GA · Hybrid

As a Senior Technical Support Specialist, you will: * Provide troubleshooting expertise on the core ... Strong understanding of TCP/IP, routing protocols, L2/L3 switching. * Experience with security ...

Fortinet, Inc.

Technical Support Engineer

Atlanta, GA · On-site

As a Senior Technical Support Specialist, you will: * Provide troubleshooting expertise on the core ... Strong understanding of TCP/IP, routing protocols, L2/L3 switching. * Experience with security ...

Fortinet

Technical Support Engineer

Atlanta, GA · Hybrid

As a Senior Technical Support Specialist, you will: * Provide troubleshooting expertise on the core ... Strong understanding of TCP/IP, routing protocols, L2/L3 switching. * Experience with security ...

Forhyre

Desktop Support Engineer - L3

Downers Grove, IL · On-site

We are looking for a Desktop Support Engineer to provide technical assistance to our clients. You will help install, upgrade and troubleshoot hardware and software systems. If you're computer-savvy ...

Solovis

Technical Support Engineer

Technical Support Engineer Solovis is a leading portfolio management and analytics platform helping institutional investors navigate today's complex global markets with clarity and confidence. Backed ...

Solovis

Technical Support Engineer

Technical Support Engineer Solovis is a leading portfolio management and analytics platform helping institutional investors navigate today's complex global markets with clarity and confidence. Backed ...

Solovis

Technical Support Engineer

Technical Support Engineer Solovis is a leading portfolio management and analytics platform helping institutional investors navigate today's complex global markets with clarity and confidence. Backed ...

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Technical Support Engineer L3 information

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$37.5K

$79K

$119.5K

How much do technical support engineer l3 jobs pay per year?

As of Sep 10, 2026, the average yearly pay for technical support engineer l3 in the United States is $79,032.00, according to ZipRecruiter salary data. Most workers in this role earn between $58,000.00 and $98,500.00 per year, depending on experience, location, and employer.

What are the roles and responsibilities of a Technical Support Engineer L3?

A Technical Support Engineer L3, also known as Level 3 support, is responsible for handling the most complex technical issues that cannot be resolved by lower-level support teams. They work closely with engineering and development teams to diagnose, troubleshoot, and resolve advanced technical problems, often involving deep system analysis and debugging. L3 engineers may also create documentation, provide mentorship to junior staff, and help implement long-term solutions to recurring issues. Their role is critical in ensuring customer satisfaction and system stability.

What skills and qualifications are needed to thrive as a Technical Support Engineer L3?

To thrive as a Technical Support Engineer L3, you need advanced troubleshooting abilities, deep knowledge of operating systems and networks, and typically a degree in computer science or a related field. Familiarity with ticketing systems like ServiceNow, diagnostic tools, scripting languages, and relevant certifications such as CompTIA, Microsoft, or Cisco is important. Strong analytical skills, clear communication, and patience help you stand out when resolving complex issues and guiding less experienced team members. These skills ensure high-level problem resolution, customer satisfaction, and efficient escalation management in demanding technical environments.

What are typical challenges faced by a Technical Support Engineer L3, and how can they be managed effectively?

Technical Support Engineer L3s often encounter complex and escalated issues that require advanced troubleshooting and deep product knowledge. One common challenge is managing multiple high-priority cases simultaneously while maintaining effective communication with both customers and internal teams. Successfully handling this role involves strong time management, staying updated on technical developments, and collaborating closely with engineering and product teams to resolve persistent problems. Building strong relationships with customers and providing clear, proactive updates is also key to ensuring a positive support experience.

What cities are hiring for Technical Support Engineer L3 jobs?

Cities with the most Technical Support Engineer L3 job openings:

What states have the most Technical Support Engineer L3 jobs?

States with the most job openings for Technical Support Engineer L3 jobs include:

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

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

Infographic showing various Technical Support Engineer L3 job openings in the United States as of August 2026, with employment types broken down into 1% As Needed, 73% Full Time, 21% Part Time, and 5% Contract. Highlights an 88% Physical, 2% Hybrid, and 10% Remote job distribution, with an average salary of $79,032 per year, or $38 per hour.

Technical Support Engineer

Sunnyvale, CA • On-site

Fortinet, Inc.
Network Security • 10K+ employees
Learn more about Fortinet, Inc.external

$90K - $110K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 2 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

Job Requirements:

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

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 $90,000-$110,000. 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.

Apply