Principal QA Engineer

NION2026 As a Principal QA Engineer, you will be a technical leader, driving the strategy and execution of product feature verification for Optical DWDM Equipment and Protocol verification (OTN, GBE, DWDM, System Security). This role offers the opportunity to apply your expertise in complex system testing, automation, and cross-functional collaboration to ensure high-quality, carrier-grade products. If you are passionate about mentoring teams, defining robust test strategies, and contributing to continuous improvement, this position provides a platform to make a significant impact on product quality and customer satisfaction. You have: A bachelor's degree or higher in Computer Science Engineering (CSE), Electrical and Electronics Engineering (EEE), or Electronics and Communication Engineering (ECE) with 10+ years of experience in System Testing one or more of the areas like Certifying Optical Networks (SONET/SDH/OTN/DWDM) systems in a product development environment and expertise in relevant standards. Certifying of ROADM, Optical amplifier line cards Expertise in optical and software design for optical equipment’s that fit into a network node Proficiency in programming/scripting languages such as Python, Perl, or other relevant scripting languages. Experience in Automation framework development/maintenance, script/suite execution, and analysis of failures. Strong knowledge and experience in testing FCAPS, Provisioning & configuration, protection schemes, and Optical Controls, along with the usage of Test-set and OSA test equipment Nice-to-have: Experience in system testing across multiple product releases and collaborating with customer support teams to address field escalations during deployments