SW QA Engineer (PON)

SW Test Engineer (PON)

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

Role Overview

In this role, you will be responsible for end-to-end feature testing of 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.

What You Will Be Doing

• End-to-end testing: Take responsibility for feature testing from early integration stages through full end-to-end functional testing.
• Test planning: Create clear, structured test plans, test cases and scenarios covering all use cases and edge cases.
• QA and functional testing: Verify product functional behavior and overall quality within an Agile development environment. Investigate complex issues, providing detailed technical analysis and reproducible scenarios.
• Scrum collaboration: Work closely within an agile scrum team structure.
• Network protocol verification: Test critical Layer 2 and Layer 3 protocols, ensuring proper functionality of OMCI, GEM frames, VLAN mapping, IGMP snooping, DHCP, NAT, etc.
• Real-world traffic simulation: Use advanced traffic generators (such as Spirent or IXIA) to perform throughput, stress and latency testing.
• Test automation: Execute automated test scripts using existing frameworks, analyze test results, and provide requirements and feedback for building new automated tests.

What You Should Have

• BE/B.Tech in Computer Science, Electronics Engineering or a networking certification.
• At least 2 years of work experience in software testing.
• Proven experience writing clear test plans and test cases, and executing manual test cases.
• Proven experience testing L2 forwarding and networking protocols such as VLAN, DHCP and LAG (must have).
• Solid understanding of networking protocols, including Ethernet, VLAN, IPv4/IPv6, DHCP and Multicast.
• Strong PON domain knowledge and hands-on debugging skills.
• Strong understanding of Linux environments and experience with network debugging tools such as Wireshark and tcpdump.
• Experience with traffic generation tools such as IXIA or Spirent.
• Strong analytical and problem-solving skills, with the ability to perform detailed root-cause analysis of complex system issues.
• Strong collaboration and communication skills, with the ability to work effectively across multiple technical teams.
• Excellent written and spoken English.

Nice to Have

• Strong understanding of PON architecture, protocols and specifications, including OLT/ONU interoperability, OMCI and PLOAM messaging.
• Experience with traffic generation tools (IXIA, iPerf).
• Scripting experience (Python, Bash, etc.).
• Hands-on experience with virtualization and containerized environments (Kubernetes, Docker).
• Experience with Agile/Scrum methodology.

Why Join Harmonic?

• Work on cutting-edge virtualized broadband technologies with direct customer impact.
• Collaborate with engineers across India, France, Ukraine, Israel and the U.S.
• Work on challenging problems at the intersection of software, networking and broadband technologies.
• Gain continuous learning opportunities in PON systems, virtualization and cloud-native networking.
• Be part of a dynamic, innovation-driven R&D environment.

Diversity, Equality, and Inclusion at Harmonic Inc.

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.