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Layer3 Jobs (NOW HIRING)

Nokia

Resident Engineer

IN · Remote

$101K - $129K/yr

Layer 2/Layer3 protocols It would be nice if you also had: * Element Management Systems such as Nokia's AMS 5520 and Altiplano * Product Test Experience * IPTV video and SIP voice service delivery

Prattwhitney

SW Infrastructure Engineer II

Sudbury, MA · On-site

$69 - $131/hr

RedHat is the main Operating System (OS) with interfacing with along with configuring Windows systems all within a Layer3 network. Candidates can expect to work on many if not all the phases of the ...

Raytheon

SW Infrastructure Engineer II

Marlborough, MA · On-site

$111K - $146K/yr

RedHat is the main Operating System (OS) with interfacing with along with configuring Windows systems all within a Layer3 network. Candidates can expect to work on many if not all the phases of the ...

Raytheon

SW Infrastructure Engineer II

Marlborough, MA

$111K - $146K/yr

RedHat is the main Operating System (OS) with interfacing with along with configuring Windows systems all within a Layer3 network. Candidates can expect to work on many if not all the phases of the ...

Raytheon

Platform Engineer II

Marlborough, MA

We are seeking a Platform Engineer to integrate software developed in C++, C and Java on hardware operating RedHat and Windows all within a Layer3 network. In this position, you will be responsible ...

Raytheon

Platform Engineer II

Marlborough, MA · On-site

We are seeking a Platform Engineer to integrate software developed in C++, C and Java on hardware operating RedHat and Windows all within a Layer3 network. In this position, you will be responsible ...

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Layer3 information

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$12

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How much do layer3 jobs pay per hour?

As of Sep 6, 2026, the average hourly pay for layer3 in the United States is $20.24, according to ZipRecruiter salary data. Most workers in this role earn between $17.07 and $22.60 per hour, depending on experience, location, and employer.

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.

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What cities are hiring for Layer3 jobs?

Cities with the most Layer3 job openings:

What states have the most Layer3 jobs?

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What job categories do people searching Layer3 jobs look for?

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Layer3 jobs near you
Infographic showing various Layer3 job openings in the United States as of August 2026, with employment types broken down into 88% Full Time, 3% Part Time, and 9% Contract. Highlights an 88% Physical, 6% Hybrid, and 6% Remote job distribution, with an average salary of $42,102 per year, or $20.2 per hour.

Senior System Test Engineer, Networking

Nvidia Corporation

Santa Clara, CA • On-site

Full-time

Re-posted 4 days ago

Nvidia rating

9.6

Company rating: 9.6 out of 10

Based on 18 frontline employees who took The Breakroom Quiz

6th of 247 rated software companies

Job description

NVIDIA is looking for a top-tier Software Test Engineer to join the NVIDIA-Cumulus Linux Verification Engineering Team! You will play an exciting role that allows you to lead verification of groundbreaking features and platforms of NVIDIA-Cumulus Linux and take full ownership of tasks involved like participating in requirements and design reviews, developing test plans for the platform or features, test execution, and automated test development for the specific platforms or features. You will be part of a dynamic Software Verification Team responsible for the qualification of the Network Operating System software that powers data centers that are accelerated, disaggregated, and software-defined to meet the exploding growth in AI and high-performance computing.
What you'll be doing:
  • Platforms Bring up: New platforms which are part of Spectrum series Ethernet Switch Systems.
  • Functional Testing of various Layer1, Layer2 and Layer3 features of NVIDIA-Mellanox Spectrum series Ethernet Switch systems running NVIDIA-Cumulus Linux.
  • Understand the new platform components and 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.

What we need to see:
  • B.S degree or equivalent experience in Engineering/Computer Science/related field.
  • 8+ years of proven experience in Software Quality Engineering.
  • Strong technical abilities, problem-solving, design, coding, and debugging skills.
  • Hands-on experience on Layer 2 and Layer 3 routing features.
  • Hands-on experience on switch platform or ASIC features, firmwares and upgrades.
  • Expertise with CPLD, BIOS, SecureBoot, SSD testing.
  • Experience with using test tools from Ixia or Spirent and working experience with test management tools.
  • Expertise in telemetry features.
  • Strong skills in Python or other scripting languages are a must.
  • Good experience working on Unix or Linux-based OS with solid understanding of software engineering practices.

Ways to stand out from the crowd:
  • Knowledge in performance testing and troubleshooting performance issues.
  • Expertise in BMC(Baseboard Management Control), Liquid Cool systems, thermal algorithms, Optics etc.
  • Experience with CI methodology & tools (Git, Gerrit, Jenkins, etc.)

With competitive salaries and a generous benefits package, we are widely considered to be one of the technology world's most desirable employers. We have some of the most forward-thinking and hardworking people in the world working for us and, due to unprecedented growth, our exclusive engineering teams are rapidly growing. If you're a creative and autonomous engineer with a real passion for technology, we want to hear from you.
#LI-Hybrid
Your base salary will be determined based on your location, experience, and the pay of employees in similar positions. The base salary range is 184,000 USD - 287,500 USD for Level 4, and 224,000 USD - 356,500 USD for Level 5.
You will also be eligible for equity and benefits.
Applications for this job will be accepted at least until August 7, 2026.
This posting is for an existing vacancy.
NVIDIA uses AI tools in its recruiting processes.
NVIDIA is committed to fostering an inclusive work environment and proud to be an equal opportunity employer. As we highly value diversity in our current and future employees, we do not discriminate (including in our hiring and promotion practices) on the basis of race, religion, color, national origin, gender, gender expression, sexual orientation, age, marital status, veteran status, disability status or any other characteristic protected by law.

What Nvidia employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom

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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

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