Test Principal Engineer

Calix provides the cloud, software platforms, systems and services required for communications service providers to simplify their businesses, excite their subscribers and grow their value.

We are seeking a seasoned Test Principal Engineer to lead the validation strategy for our DOCSIS-based broadband access systems. This role demands deep technical expertise in DOCSIS technologies, distributed systems, and enterprise-grade software platforms. You will collaborate with cross-functional teams to ensure the reliability, scalability, and security of our element management systems.

Key Responsibilities:

• Lead the planning, design, and execution of test strategies for DOCSIS-based broadband access systems and element management platforms.
• Collaborate with cross-functional engineering, product, and support teams to ensure test coverage aligns with system architecture and business goals.
• Develop and maintain automated test frameworks for validating distributed, multi-tiered applications, including FCAPS functionalities.
• Drive performance, scalability, and reliability testing across geographically distributed systems with high concurrency and multi-threading.
• Ensure robust validation of REST APIs, SNMP, IPFIX, Netconf/Yang, and database interactions (Postgres, MongoDB).
• Oversee testing of HA, clustering, and redundancy features to ensure fault tolerance and system resilience.
• Recreate and simulate complex system issues in test environments that closely mirror customer deployments to ensure accurate troubleshooting and validation.
• Promote a data-driven testing culture focused on continuous improvement, quality metrics, and best practices.
• Stay current with industry trends, tools, and technologies to enhance testing efficiency and effectiveness.

Required Qualifications:

• 15+ years of experience in testing distributed, multi-tiered enterprise applications, preferably in telecommunications or access network domains.
• Strong understanding of DOCSIS MAC and PHY layer protocols and their interactions within broadband infrastructures.
• Hands-on experience in Linux environments and Java-based applications, including multi-threading, exception handling, and memory management.
• Proven expertise in validating FCAPS functionalities across scalable and geographically distributed systems.
• Experience in testing REST APIs, SNMP, IPFIX, Netconf/Yang, and data formats like JSON and XML.
• Familiarity with Postgres and MongoDB for database validation and performance benchmarking.
• Knowledge of HA, clustering, and redundancy testing strategies.
• Exposure to SDN controllers (e.g., ONOS) and containerization frameworks like Docker.
• Proficiency with CI/CD tools and version control systems such as Git, Gerrit, Jenkins, and Jira.
• Strong analytical and troubleshooting skills, with the ability to recreate complex system issues in test environments that mirror customer deployments.
• Excellent communication skills and a collaborative mindset to work effectively across cross-functional teams.

About Us

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Calix delivers a broadband platform and managed services that enable our customers to improve life one community at a time. We're at the forefront of a once in a generational change in the broadband industry. Join us as we innovate, help our customers reach their potential, and connect underserved communities with unrivaled digital experiences.

This is the Calix mission - to enable CSPs of all sizes to Simplify. Innovate. Grow.

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