Sr. Software QA Engineer

Sr. Software QA Engineer  

Harmonic is the worldwide leader in virtualized broadband solutions. We revolutionized broadband networking via the industry’s first virtualized broadband solution, enabling broadband operators to more flexibly deploy gigabit internet service to consumers’ homes and mobile devices. Learn more at www.harmonicinc.com.

Role Description:
We are seeking a Senior QA Engineer to join our Broadband R&D organization.
In this role, you will be responsible for integrating and end-to-end testing complex embedded systems that involve both hardware and software components. The position requires strong PON domain expertise, hands-on debugging skills, and the ability to execute and enhance automated test frameworks.

Location:

Hybrid role – working 3-4 days a week from our office in Bangalore.

What you will be doing:

• Execute and maintain the build acceptance test suite used to qualify products for customer deployments

• Diagnose and resolve complex interoperability issues between ONUs and Harmonic’s vOLT through in-depth analysis of logs, traces, and source code

• Analyze requirements for automated testing and maintain CI test suites by integrating new tests (written in Python) developed by other teams, while optimizing structure and coverage

• Collaborate closely with R&D Scrum teams to investigate complex issues, providing detailed technical analysis and reproducible scenarios

• Utilize automation and debugging tools to improve test coverage, execution efficiency, and root-cause analysis

What you will need to succeed:

• BE/B.Tech/M.E/M.Tech degree in CS/EC/IT or equivalent experience

• 5+ years of hands-on experience in networking systems QA, integration, or R&D

• Proven experience in writing clear test plans, test cases, and bug reports, as well as executing test scenarios

• Strong knowledge of PON architecture, protocols, and specifications, including OLT/ONU interoperability

• Deep understanding of networking protocols, including IEEE 802.1Q/ad bridging and/or IPv4/IPv6 unicast and multicast routing

• Experience working in Agile/Scrum environments

• Proficiency with Linux systems and network debugging tools (e.g., Wireshark, tcpdump)

• Strong analytical and problem-solving skills with the ability to perform deep root-cause analysis

• Excellent collaboration and communication skills in English. Ability to communicate effectively with different groups.

Would be a plus:

• Experience with traffic generation tools (IXIA, iPerf)

• Experience with CI/CD tools (e.g., Jenkins)

• Scripting experience (Python, Bash, etc.)

• Hands-on experience with virtualization technologies (Kubernetes, Docker).

• Background as a Networking/DevOps Engineer

Diversity, Equality, and Inclusion at Harmonic:

At Harmonic, we believe that building and nurturing a global team with diverse backgrounds and voices is critical to our success. Together, we achieve excellence through creativity and innovation, build relationships based on integrity and mutual respect, and deliver the highest quality in every aspect of our business for the benefit of our employees, business partners and shareholders.

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About Us

Harmonic (NASDAQ: HLIT), the worldwide leader in virtualized broadband solutions, is transforming multi-gigabit connectivity. The company’s industry-leading cOS™ virtualized broadband platform, suite of solutions for fiber and DOCSIS, and a growing portfolio of AI-powered network intelligence solutions, enable broadband service providers to simplify operations, deliver exceptional subscriber experiences and expand revenue streams. With thousands of vCMTS servers and hundreds of thousands of RPDs deployed globally, Harmonic powers next-generation broadband services with five-nines reliability. Anchored with a customer-first approach and driven by a legacy of innovation, Harmonic supports broadband service providers at every stage of their network evolution. More information is available at www.harmonicinc.com.