Principal Engineer, System Verification

Job Summary: Design and develop test plans for DWDM Optical Networking systems and SDN based network controller integration. This Role includes test case development and execution for new products as well as legacy products. This role also includes customer interactions to validate new system features against customer requirement and support customer validation. **Primary Duties & Responsibilities** **Test Strategy/Verification/Automation – 80%** - Discuss and review system requirement documents. Collaborate with cross-functional teams to analyze system specifications and technical requirements. - Design and develop comprehensive test plans covering functional, performance, and boundary scenarios. Create traceability matrices aligning test cases with system requirements - Establish best verification practices for a new team, consistent with existing practices and tools used by team - Validate management interface by testing optical provisioning, alarm, telemetry and software upgrade features over Netconf, CLI and gRPC interfaces. Familiar with SNMP and Rest interfaces - Conduct black box testing vertically from SDN based network controller or network element to validate system features, networking functionalities including OSPF, BGP and LLDP, optical system features including EDFA/RAMAN amplifiers, OSC, WSS, OCM and OTDR and OTN features - Develop/maintain Python-based automation scripts. Implement CI/CD pipelines for regression testing using Jenkins/Gitlab. Improve test automation coverage using industry’s best standard methods. - Create test summary report for each release and maintain test case repository - Maintain daily sanity tests and run regression tests in each software load. Perform regression testing for software/hardware upgrades. - Design new test cases based on customer findings or new feature requests. Retest bug fixes and other sustaining issues from legacy products **Teamwork and Support – 20%** - Mentoring/Coaching junior verification engineers. Drive automation script reviews and practices across team - Collaborate with HW/SW development and system architecture teams to continuously improve product performance, execution efficiency, and development processes. **Education & Experience** - University degree in Electrical Engineering or Computer Science - 8+ years of experience in embedded systems software verification - 5+ years of experience in Optical Networking industry (L0 and/or L1 equipment) - Experience in automation of northbound interface testing: Netconf/YANG, Restconf, CLI, SNMP. - Experience in testing Linux based embedded systems. - Experience in Python or other script language for automation test. - Experience in network protocols such as TCP/IP, Ethernet, OSPF, BGP, LLDP, RSTP - Experience with DWDM optical systems, familiar with EDFA, WSS, OSC, OCM and OTDR - Familiarity with Transponder product, familiar with OTN, 100G, 400G, 800G - Practical experience across the entire Agile development lifecycle, including continuous integration, continuous deployment (CI/CD), and collaboration through DevOps practices. - Familiarity with 3^rd^ party test devices and automation to support complete system testing **Skills** - Familiar with networking data modeling (Open Config, Yang models etc.) and security protocols - Experience in optical networking (ROADM, ILA, OTN) system level features - Good written and oral communication skills in English. Experience in cross-site development with global teams. - Programming languages: Python. Familiar with VS code environment. - The ability to work independently with guidance from supervisor on specific tasks. - Able to work and execute on an aggressive schedule - Self-starter, highly motivated, dedicated and teamwork oriented **Working Conditions** - This position is onsite at Horsham, PA location - May require occasional off-site meetings or travel - Regular use of a computer and other office equipment is necessary - Interaction with team members and external con…