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SONIC - Staff, Test Framework Engineer - SS1013655

Juniper Networks, Inc
parental leave, sick time, 401(k)
United States, California, Sunnyvale
Jun 19, 2025

SONiC - Staff, Test Framework Engineer
Location: Sunnyvale, CA

We are seeking an experienced SONiC Test Framework Engineer to design, build, and maintain a robust test infrastructure from the ground up-primarily focused on virtual testbeds. You will lead the deployment and automation of SONiC VM environments to validate functionality, performance, and scalability of network devices in data center topologies. This role demands strong expertise in networking, virtualization, automation, and open-source test frameworks.

Responsibilities

Testbed Design & Deployment

Build and configure SONiC virtual testbeds using KVM, Docker, and Open vSwitch (topologies: T0/T1/T2).

Set up Devices Under Test (DUTs) and neighbor devices via Minigraph XML and topology files.

Validate testbed readiness before test execution.

Automation & Framework Integration

Develop Ansible playbooks and Python scripts for testbed setup, configuration, and automation.

Integrate with the sonic-mgmt framework to streamline testing workflows.

Testing & Validation

Use PTF to validate SONiC control/data plane functionality.

Simulate and analyze network traffic using tools like Scapy and tcpdump.

Execute feature, functional, and performance tests; report results and track defects.

Troubleshooting & Debugging

Diagnose issues in virtual environments (VMs, containers, network connectivity).

Analyze logs from SONiC systems and collaborate with development teams on defect resolution.

Documentation & Collaboration

Document configurations, procedures, and test cases.

Contribute to the SONiC open-source community (scripts, issues, pull requests).

Work cross-functionally with developers, test teams, and network engineers.

Continuous Improvement

Enhance scalability and efficiency of test infrastructure.

Stay current with SONiC updates, protocol evolution, and automation trends.

Basic Qualifications:



  • Bachelor's or master's degree in computer science, Electrical Engineering, or a related field.
  • Minimum of 8+ years of work experience is required, with at least 2 years of hands-on SONiC development/test experience is a must.
  • Strong experience with SONiC network operating system.
  • Proficient in Python, C/C++.
  • Experience with PTF (Packet Test Framework) and SPyTest for network validation.
  • Familiarity with Linux internals, docker containers.
  • Excellent problem-solving skills and ability to work in a fast-paced, collaborative environment.
  • Knowledge of network ASICs and switch hardware architecture.
  • Prior Sonic community contribution is an added advantage



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Minimum Salary: $165,600.00

Maximum Salary:$238,050.00

The pay range for this position is expected to be between $165,600.00 and $238,050.00/year; however, the base pay offered may vary depending on multiple individualized factors, including market location, job-related knowledge, skills, and experience. The total compensation package for this position also includes medical benefits, 401(k) eligibility, vacation, sick time, and parental leave. Additional details of participation in these benefit plans will be provided if an employee receives an offer of employment.

If hired, employee will be in an "at-will position" and the Company reserves the right to modify base salary (as well as any other payment or compensation program) at any time, including for reasons related to individual performance, Company or individual department/team performance, and market factors.

Juniper's pay range data is provided in accordance with local state pay transparency regulations. Juniper may post different minimum wage ranges for permanent residency petitions pursuant to US Department of Labor requirements.

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