Network Test/Validation Engineer
Job Description
Hi All,
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I am hiring for below mentioned role.
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Job Title: Network Test/Validation Engineer
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Work Location: Redmond Wa
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Work Arrangement: Onsite
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Employment Type: Full-time
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Application Deadline: Applications are accepted on an ongoing basis until the position is filled.
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Seeking a Network Test/Validation Engineer with strong experience in Routing/Switching, VxLAN/EVPN, MPLS, QoS, and RoCE, focused on solution‑level and high‑scale testing.
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Key Responsibilities
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Perform solution and scale testing for VxLAN/EVPN, MPLS overlays, QoS, and RoCE/RoCEv2
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Design and execute high‑scale traffic and protocol emulation.
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Validate throughput, latency, jitter, loss, microbursts, and convergence at scale
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Test QoS behaviors (classification, queuing, shaping, policing, congestion handling)
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Validate RoCE lossless fabrics (PFC, ECN, congestion behavior, latency sensitivity)
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Automate test execution and reporting using Python/REST APIs
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Produce clear test plans, results, and defect reports
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Required Skills
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6–8+ years in network testing/validation or performance engineering
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Strong hands‑on expertise with VxLAN/EVPN and MPLS
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Solid understanding of QoS design and validation
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Experience testing RoCE / RoCEv2 environments
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Python‑based test automation experience
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Strong protocol knowledge: BGP (EVPN), OSPF/IS‑IS, ECMP
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Data center leaf‑spine or large‑scale fabric testing
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Experience with lossless Ethernet and congestion management
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Exposure to multi‑vendor environments
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NLB Services is an Equal Opportunity Employer. All qualified applicants will receive consideration without regard to any legally protected characteristic, including and protected veteran status. For recruitment accommodations, contact your recruiter or notifications@nlbservices.com.
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Reasonable Accommodation
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NLB Services provides reasonable accommodations during the recruitment process as required by law. Applicants requiring an accommodation due to a , -related limitation, or sincerely held belief, practice or observance may contact their recruiter or email notifications@nlbservices.com.
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Benefits
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Based on employment status and assignment, eligible employees may receive benefits, such as Medical, Dental and Vision Insurance, Health Insurance, Insurance, etc. Eligibility and benefit terms vary by assignment.
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Other Important Terms
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Applicants must be legally authorized to work in the United States.
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Any employment offer may be contingent upon job-related screening, employment eligibility verification and other requirements permitted by applicable law.
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Following a conditional offer of employment, candidates may be required to complete job-related background screening, which may include criminal history checks and/or drug testing, as applicable and permitted by federal, state, and local law.