Celestica · 1 day ago
Senior Lead Networking Test Engineer (Austin)
Merrimack, NH
Full-time
Onsite
Senior Level, Lead/Staff
8+ years expCelestica is a leader in design, manufacturing, and supply chain solutions, enabling the world's best brands. The Senior Lead Networking Test Engineer will define, develop, and execute test strategies for data center network solutions while leading a team of engineers and collaborating with cross-functional teams to ensure high-quality deliverables.
ElectronicsManufacturingProduct DesignSupply Chain Management
Responsibilities
Lead the definition and development of holistic test strategies, test plans, and test cases for complex data center network solutions, including Layer 2/3, SDN, DCN, EVPN/VxLAN, and high-performance fabrics (e.g., RDMA/RoCE)
Work closely with network architecture and engineering teams to understand design specifications and translate them into effective test methodologies
Identify key performance indicators (KPIs) and scalability metrics for network validation
Hands-on execution of complex network tests, including functional, performance, scalability, stability, and reliability testing
Analyze test results, identify defects, conduct root cause analysis, and work with development teams to resolve issues
Perform deep-dive packet analysis and network protocol debugging using tools like Wireshark, tcpdump, and network analyzers
Design, develop, and maintain advanced test automation frameworks and scripts (e.g., Python, Ansible, Terraform, Robot Framework) to accelerate testing cycles and improve efficiency
Evaluate, recommend, and integrate new testing tools and technologies into our CI/CD pipelines
Drive the adoption of best practices in test automation and continuous integration
Lead and mentor a small team of networking test engineers, providing technical guidance, code reviews, and fostering a culture of excellence and continuous improvement
Act as a technical subject matter expert for network testing within the organization
Drive innovation in test methodologies and processes
Collaborate cross-functionally with network architecture, development, operations, and product teams to ensure comprehensive test coverage and high-quality deliverables
Clearly communicate test progress, risks, and results to stakeholders at all levels
Contribute to documentation, runbooks, and operational guides
Qualification
Required
Education: Bachelor's or Master's degree in Computer Science, Electrical Engineering, Network Engineering, or a related technical field
8+ years of experience in network engineering, network operations, or network testing roles, with at least 3 years focused specifically on data center networking
3+ years of experience in a lead or senior technical role, mentoring junior engineers or leading test initiatives
Expert-level understanding and hands-on experience with Layer 2 and Layer 3 networking protocols in large-scale data center environments (e.g., BGP, OSPF, ISIS, MPLS)
Extensive experience with modern data center interconnect technologies (EVPN/VxLAN)
Strong knowledge of high-performance networking, including RDMA over Converged Ethernet (RoCE) and associated congestion control mechanisms (PFC, ECN, DCQCN)
Familiarity with network operating systems like SONiC (preferred), Cisco NX-OS, Arista EOS, and Juniper Junos
Proficiency in at least one scripting language (e.g., Python, Go) for test automation, API integration, and data processing
Experience with network automation tools (e.g., Ansible, Terraform, Netmiko, NAPALM)
Experience building and maintaining test frameworks (e.g., Robot Framework, Pytest)
Proven experience designing and executing various types of network tests: functional, performance (throughput, latency, jitter), scalability, reliability, and security
Expertise with network testing tools (e.g., IXIA, Spirent, Keysight, TRex, Ostinato, SmartBits)
Strong packet analysis and troubleshooting skills using Wireshark, tcpdump, or similar tools
Strong proficiency in Linux/Unix operating systems
Understanding of virtualization (VMware, KVM) and containerization technologies (Docker, Kubernetes)
Exceptional analytical and problem-solving skills with a meticulous attention to detail
Ability to isolate complex network issues spanning multiple layers and technologies
Preferred
Experience with SDN controllers and orchestration platforms
Experience with ESXi
Familiarity with cloud networking concepts (AWS, Azure, GCP)
Knowledge of network security principles and testing
Relevant industry certifications (e.g., CCIE, JNCIE, CCNP Data Center, Linux Foundation Certified Engineer, Mellanox certifications)
Company
Celestica
Celestica is a manufacturing firm that provides design, hardware platform, and supply chain solutions to a multitude of industries.
10001+ employees
H1B Sponsorship
Celestica has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (13)
2024 (3)
2023 (6)
2020 (3)
Funding
Current Stage
Public CompanyTotal Funding
$1.47B2024-06-20Post Ipo Debt· $657.67M
2023-06-05Post Ipo Secondary· $148.8M
2021-09-30Post Ipo Debt· $660.4M
Leadership Team
Robert Mionis
President and CEO
Recent News
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