{"id":4063868,"url":"https://alion.io/job/harmonic-sw-development-engineer-onu-interoperability","title":"SW Development Engineer - ONU Interoperability","company":{"id":8423,"name":"Harmonic","domain":"harmonicinc.com","url":"https://alion.io/company/harmonic","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Oracle","truth_index":{"grade":"B","score":75,"open_postings":11,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-11-11T05:49:22Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Bengaluru, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"DHCP","optional":false},{"name":"Linux","optional":false},{"name":"Python","optional":false},{"name":"Scrum","optional":false},{"name":"Tcpdump","optional":false},{"name":"VLAN","optional":false},{"name":"Wireshark","optional":false},{"name":"Docker","optional":true},{"name":"Kubernetes","optional":true}],"status":"live","first_seen_at":"2026-11-11T05:08:55Z","employer_posted_date":"2026-11-11","last_verified_at":"2026-11-11T10:17:18Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"About Harmonic:\nHarmonic 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.\nLearn more at www.harmonicinc.com.\nWhat you will be doing:\nDevelop and debug software using C++ and/or Python to support ONU interoperability and integration.\nDiagnose and resolve complex interoperability issues between ONUs and Harmonic's vOLT solutions through detailed analysis of logs, traces, and source code.\nRead, debug, and modify C++ and Python code to identify root causes and implement fixes for straightforward issues.\nAnalyze PON specifications, including ITU-T G.984, G.987, G.9807, and G.988, to assess compliance and investigate protocol deviations.\nCollaborate closely with R&D scrum teams to communicate technical findings, develop reproduction scenarios, and drive issues toward resolution.\nExecute and maintain the ONU interoperability acceptance test suite used to qualify ONUs for customer deployments.\nValidate vendor fixes through regression and acceptance testing.\nWork closely with QA and software development teams to improve the stability and interoperability of ONU integrations.\nWhat you should have:\nBE/B.Tech or higher degree in Computer Science, Electronics & Communication, Information Technology, or an equivalent technical discipline.\n5+ years of hands-on experience in networking systems development, software integration, or R&D.\nStrong programming skills in C++ and Python, with the ability to read, debug, and modify production code.\nStrong understanding of Linux environments and experience using network debugging tools such as Wireshark and tcpdump.\nSolid understanding of networking protocols, including Ethernet, VLAN, IPv4/IPv6, DHCP, and Multicast.\nExperience with traffic generation tools such as IXIA or Spirent.\nStrong analytical and problem-solving skills, with the ability to perform detailed root-cause analysis of complex system issues.\nStrong collaboration and communication skills, with the ability to work effectively across multiple technical teams.\nExcellent written and spoken English.\nNice to have:\nStrong understanding of PON architecture, protocols, and specifications, including OLT/ONU interoperability, OMCI, and PLOAM messaging.\nHands-on experience with containerized environments such as Docker and Kubernetes.\nExperience working with virtualized OLT or ONU technologies.\nExperience in customer-facing technical or integration roles.\nWhy join Harmonic?\nWork on cutting-edge virtualized broadband technologies with direct customer impact.\nCollaborate with engineers across India, France, Ukraine, Israel, and the U.S.\nWork on challenging problems at the intersection of software, networking, and broadband technologies.\nGain continuous learning opportunities in PON systems, virtualization, and cloud-native networking.\nBe part of a dynamic, innovation-driven R&D environment.\nDiversity, Equality, and Inclusion at Harmonic Inc.\nAt Harmonic, we believe that building and nurturing a global team with diverse backgrounds and voices is critical to our success. 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