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Layer3 Jobs in California (NOW HIRING)

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Layer3 information

What is a Layer3?

Layer3 jobs typically refer to positions that involve working with the network layer (Layer 3) of the OSI model, which is responsible for routing data packets between devices across different networks. Professionals in these roles often manage routers, configure IP addressing, and implement routing protocols to ensure efficient and secure data transmission. Common job titles include network engineer, network administrator, and network architect. These roles are critical in designing, maintaining, and troubleshooting complex network infrastructures for organizations.

What are the key skills and qualifications needed to thrive as a Layer 3 network engineer?

To thrive as a Layer 3 Network Engineer, you need a solid understanding of networking protocols (such as OSPF, EIGRP, and BGP), routing concepts, and typically a degree in computer science or a related field. Experience with network hardware (routers, switches), network monitoring tools, and certifications like Cisco CCNP or Juniper JNCIS are commonly required. Strong problem-solving abilities, attention to detail, and effective communication are vital soft skills for this role. These skills and qualifications are essential to ensure secure, efficient, and reliable network performance in complex IT environments.

What are some common challenges faced by Layer3 network engineers, and how can they be addressed?

Layer3 network engineers often encounter challenges such as managing complex routing protocols, troubleshooting network congestion, and ensuring seamless integration between different network layers. Staying current with evolving technologies and maintaining strong documentation practices can help address these issues. Collaboration with cross-functional teams, such as security and systems administrators, is also crucial to quickly identify and resolve network anomalies. Continuous learning and hands-on experience with network simulation tools can further enhance problem-solving skills in this role.

What is the difference between Layer3 vs Network Engineer?

AspectLayer3Network Engineer
Required CertificationsCCNA, CCNP, CompTIA Network+CCNA, CCNP, CompTIA Network+
Work EnvironmentData centers, enterprise networks, ISPsCorporate offices, data centers, service providers
Industry UsageNetworking hardware, routing, switchingNetwork design, implementation, troubleshooting

Layer3 specialists focus on routing, switching, and network infrastructure at the OSI model's third layer, often working with routers and switches. Network Engineers also handle network design and troubleshooting but may have a broader scope including network security and infrastructure planning. Both roles require similar certifications and work environments, but Layer3 roles are more specialized in routing protocols and network hardware configuration.

What are popular job titles related to Layer3 jobs in California?

For Layer3 jobs in California, the most frequently searched job titles are:

What job categories do people searching Layer3 jobs in California look for?

The top searched job categories for Layer3 jobs in California are:

What cities in California are hiring for Layer3 jobs?

Cities in California with the most Layer3 job openings:

Layer3 jobs near you
Infographic showing various Layer3 job openings in California as of August 2026, with employment types broken down into 91% Full Time, 2% Part Time, and 7% Contract. Highlights an 73% Physical, 9% Hybrid, and 18% Remote job distribution.

Senior System Software Test Engineer, Networking

NVIDIA

Santa Clara, CA • On-site

$129K - $168K/yr

Full-time

Re-posted 25 days ago

Nvidia rating

9.6

Company rating: 9.6 out of 10

Based on 17 frontline employees who took The Breakroom Quiz

7th of 245 rated software companies

Job description

Job Summary:
NVIDIA is looking for a top-tier Software Test Engineer to join the NVIDIA-Cumulus Linux Verification Engineering Team! You will lead verification of groundbreaking features of NVIDIA-Cumulus Linux and take full ownership of tasks involved in test plans, execution, and automated test development.
Responsibilities:
• Functional Testing of various Layer2 and Layer3 features of NVIDIA-Networking Spectrum series Ethernet Switch systems running NVIDIA-Cumulus Linux.
• Write detailed feature and system test plans, and define and design test beds and topologies.
• Report issues found during testing into the defect tracking system and validate the fixes and workarounds.
• Develop automated test suites for different features of NVIDIA-Cumulus Linux.
• Build and maintain automation required to ensure quality via continuous functional regression.
• Collaborate with design, test and other internal engineering groups to identify, report, and resolve issues found during testing.
Qualifications:
Required:
• B.S degree or equivalent experience in Engineering/Computer Science/related field.
• 5+ years of proven experience in Software Quality Engineering.
• Strong technical abilities, problem-solving, design, coding, and debugging skills.
• Hands-on experience on any Layer2 and Layer3 protocols like MLAG, VLAN, STP, OSPF, BGP, EVPN, etc.
• Experience with using test tools from Ixia or Spirent and working experience with test management tools.
• Strong skills in Python or other scripting languages are a must.
• Good experience working on Unix or Linux-based OS.
• Multi-tasking ability and good interpersonal skills.
• Solid understanding of software engineering practices.
Preferred:
• Exposure on using AI (like Claude or Cursor) extensively for code development would be a big plus
• Knowledge in performance testing and fixing performance issues.
• Experience with CI methodology & tools (Git, Gerrit, Jenkins, etc.)
Company:
NVIDIA is a computing platform company operating at the intersection of graphics, HPC, and AI. Founded in 1993, the company is headquartered in Santa Clara, USA, with a team of 10001+ employees. The company is currently Late Stage.

What Nvidia employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom

Nvidia logo

About Nvidia

Sourced by ZipRecruiter

NVIDIA has been transforming computer graphics, PC gaming, and accelerated computing for more than 25 years. It's a unique legacy of innovation that's fueled by great technology--and amazing people. Today, we're tapping into the unlimited potential of AI to define the next era of computing. An era in which our GPU acts as the brains of computers, robots, and self-driving cars that can understand the world. Doing what's never been done before takes vision, innovation, and the world's best talent.

Industry

Computer and electronic product manufacturing

Company size

10,000+ Employees

Headquarters location

Santa Clara, CA, US

Year founded

1993

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