# Neeranjan Deone > Software Engineer at Zscaler Location: San Jose, California, United States Profile: https://flows.cv/neeranjan Senior Software Engineer with 10 years of experience in Computer Networking who is currently working at Cisco Systems. Have strong fundamentals in C/C++ as well as Networking Protocols. Worked on various Layer 3, Routing Security and Data Modelling projects. At the moment looking for a challenging position to utilize acquired skills and knowledge. CISCO SYSTEMS: • Developed IPsec-based VPN solution for IOT gateway by integrating open source Strongswan stack and Click OS to build a minimum viable product. • Led, designed and developed YANG Data Model for IPsec configuration and operational data in order to interface with the cloud using IOT device agent. • Implemented new features and triaged issues on core crypto library components on Cisco’s IOS-XE platforms. Licensing Solutions • Designed and implemented subscription management solutions for crypto throughput feature on IOS-XE platforms using Cisco’s Smart licensing infrastructure. • Implemented export compliance solutions for restricted security features on Cisco’s ISR routers and integrated with the cloud based Smart software manager portal. Calix: Developed infrastructure for the key layer 3 features in (C/C++) like Unicast Reverse path forwarding, VRF and OSPF, ISIS and BGP routing protocol features Integrated metaswitch routing protocol stack using yocto and bitbake to provide layer 3 functionality on Broadcom Tomahawk based product Port and module manager Enhanced and maintained the module,port bring up on Nexus platforms. Enhanced the port indexing schemes for the higher density modules Involved in scalability related optimizations on the nexus 7000 switches Worked with marketing,Transceiver Module Group,driver teams to provide support for the transceivers.Added Quack chip support for counterfeit protection of field replaceable units. Triaged issues on nexus 7000 switches for control plane related to scalability. Cisco CLI and SNMP Enhanced and maintained CLI/XML infrastructure for displaying the statistics collections on physical and logical interfaces Enhanced and fixed issues in SNMP,traps for the nexus 7000 switches Specialties: C (strong), C++, Java, x86 assembly language, MATLAB, HTML, XML,Shell Scripting,Perl, Knowledge of Data Structures,TCP/IP, UDP, HTTP, DNS, FTP, ATM, GSM, CDMA, IEEE 802.11, Socket Programming, Kernel Programming, OSPF, EIGRP, SNMP, SOAP, REST,Pacgen, OPNET, Ethereal, Eclipse, Netbeans, Netwag, SVN, Vmware Player,MS Office Platforms Windows, DOS, LINUX, XINU, Android,valgrind ## Work Experience ### Staff Software Engineer @ Zscaler Jan 2023 – Present | San Jose, California, United States ### Software Engineer @ Cisco Jan 2018 – Jan 2023 | San Francisco Bay Area ### Senior Software Engineer @ Calix Jan 2014 – Jan 2018 | san jose Routing • Designed and developed infrastructure for the key layer 3 features in (C/C++) like Unicast Reverse path forwarding, VRF and OSPF, ISIS and BGP routing protocol features • Integrated the metaswitch routing protocol stack using yocto and bitbake to provide layer 3 functionality on the AXOS aggregation and NGPON product • Designed and developed debug infrastructure for on screen debugging with routing protocol filtering using Tail-f and CONFD framework • Developed Layer 3 Infrastructure Software with high quality and Agile methodology on AXOS platform for NGPON,EPON and products • Triaged and debugged several traffic forwarding issues on Broadcom tomahawk based aggregation product Network Management • Designed and developed yang data model to support CLI and NETCONF for routing on the the AXOS platform • Enhanced the plugins for pyang, a yang parser tool, using Python to generate xml formats for the yang data model • Designed and developed library infrastructure to audit alarms across the driver managers in the system to detect missing or stale alarms. AXOS Infrastructure • Designed and developed generic build chain architecture to support third party software using yocto and to enhance security and improve build times • Enhanced the logging infrastructure of the routing stack using python • Developed embedded application software for the functionality such as high availability, event/fault management, interface with network management, inter process communication and upgrade management ### Software Engineer III @ Cisco Jan 2011 – Jan 2014 | san jose • Define, design, and deliver new software protocols and features for the Nexus platform with emphasis on infrastructure layer,layer2/routed protocols ,scalability • Design , develop ,triage and fix issues related to Port manager ,CLI,SNMP on the nexus platforms. • Use basic shell/TCL/python scripting to triage , fix and verify issues • Use network tools like ixia ,iperf to generate traffic for unit testing and debugging of the software features . • Write portions of functional and design spec for the software features • Develop and execute test plans for software features . • Provide input in the Engineering schedule (QA) • Provide input in software code review to peers and other teams in the BU • Collaborate with other groups in the business unit for developing software features and triaging issues. ### software engineer @ Cisco Jan 2010 – Jan 2011 ISBU cat 6k layer 3 forwarding team ### software engineer @ Cisco Jan 2010 – Jan 2011 ### Lecture Assistant @ North Carolina State University Jan 2009 – Jan 2009 Lecture Assistant for calculus course ## Education ### MS in Computer networking North Carolina State University ### K J Somaiya College of Engineering ## Contact & Social - LinkedIn: https://linkedin.com/in/neeranjan-deone-68708011 --- Source: https://flows.cv/neeranjan JSON Resume: https://flows.cv/neeranjan/resume.json Last updated: 2026-04-12