# Ale Mansoor > Principal Engineer at Zscaler Location: Fremont, California, United States Profile: https://flows.cv/alemansoor Worked in hands-on engineering roles in Networking, Telecom and VoIP technologies across various application domains: - Intel DPDK, NFV, SDN, Open vSwitch, OVS-DPDK, SRIOV - 6WIND Accelerated IP Stack - Open Source IDS/IPS Engines - SNORT, SURICATA - Intel Hyperscan Parallel Pattern Match Engine - Cavium Octeon Multi-Core Firmware - DNS Protocol Acceleration, DNS Caching, DNS Threat Protection - Ethernet/IP Networking & FastPath - Network Application Programming under TCP/IP - VoIP Protocols (RTP/MGCP/SIP) - Multi-Threaded Unix/Linux Application Middleware - Telecomunications/SS7 - (ISUP, TCAP) - PBX/Call Center - Automatic Call Distributer (ACD) Switch Interface Application Programming - Network Equipment Configuration - Cisco Switches & Routers - FreeBSD Kernel / Networking - Virtulization (VMWare, KVM, VirtualBox) Specialties: - Programming in C/C++/Golang/Python/BASH, Unix Networking, Concurrency/Multi-core Software, FastPath Applications, Appliances and SaaS Cloud Infrastructure ## Work Experience ### Principal Engineer @ Zscaler Jan 2018 – Present | San Francisco Bay Area Working at Zscaler on Zscaler Private Access (ZPA)- ZPA, part of the Emerging Technologies group. ### Principal Engineer @ CloudPassage Jan 2017 – Jan 2018 | San Francisco Bay Area Designed and developed major portions of Dockerized SaaS backend for Cloud Passage Container Secure Platform. Developed various golang (GO) based web micro-services using leading SaaS technologies: Amazon EC2, Amazon RDS, Kafka, Cassandra, ElasticSearch, DataDog and NewRelic to build scalable distributed SaaS infrastructure. Experience with multi-tenant high security SaaS cluster environments, overseeing, monitoring(devops) of Production SaaS infrastructure with Mesos DCOS (Data Center OS), based on Marathon Container Orchestration and Metronome based job infrastructure. Used combination Jenkins CI/CD and Agile based development models. ### Principal Architect @ Infoblox Jan 2016 – Jan 2017 | San Francisco Bay Area Designed accelerated recursive DNS solutions for service provider NFV deployments, Software based NFV DNS threat protection for service provider NFV deployment to mitigate DNS security threats and provide DDOS protection against DNS infrastructure. Designed scalable virtual appliances for acclerated DNS and DNS threat protection for subscription based service licensing ### Principal Engineer / Project Lead @ Infoblox Jan 2013 – Jan 2016 | San Francisco Bay Area Developed acclerated recursive DNS servers and DNS threat protection solutions under Cavium Octeon, Virtualized x86 white-box NFV/SDN platforms: - Intel DPDK, 6WIND Accelerated IP Stack, DNS Fastpath Applications, Intel HyperScan - Open Source IDS/IPS - Suricata, SNORT - SRIOV, PCI-Passthrough - SDN/NFV - Open vSwitch, OVS-DPDK, Open Fastpath, ODP - Accelerated Recursive DNS, DNS Threat Protection - Cavium Octeon Executive Mode Firmware for (CN57XX, CN66XX, CN68XX) multi-core processors - Octeon card monitoring, Octeon interrupt handling, Octeon/Intel x86 control plane API's - Misc - Atmel Avr, Octeon u-Boot bootloader - System Monitoring & Recovery - Virtualization (VMWare ESX KVM), Virtual Box - Linux user space networking applications - High Avaliablity using VRRP Protocol - System Platform Upgrade Subsystem ### Sr Software Engineer @ Infoblox Jan 2007 – Jan 2013 Software Engineer working in the Infrastructure group at infoblox - Infoblox appliance upgrades, various enhancements - Infoblox Bloxtools feature - Infoblox vNIOS products - Infoblox middleware enhancements in Python - Infoblox features, enhancements - Support and sustaining ### Sr Software Engineer @ Vernier Networks Jan 2004 – Jan 2007 Senior software engineer in the platform team, working on the Vernier EdgeWall 8800 and EdgeWall 8100 control plane and EdgeWall 7000 data plane software. Job responsiblities include software development, customer support, proficient in C/C++, IP Networking, Unix Systems Programming on FreeBSD and Linux platforms. Worked on various features such as: - Dynamic System IP Firewall - Smart Scan Agent Client Download, Deployment & Agent Process Monitoring/Recovery. - Feature Enhancements for EdgeWall8800 IDS/IPS/NAC Control Plane API’s. - EdgeWall8100 Linux Porting. - Network & Deployment Testing for EdgeWall 8800 IDS/IPS/NAC Product. - Routing Peer to Peer IP Traffic to Uplink VLAN Gateways. - IP Packet Routing to VLAN Gateways. - 802.1Q VLAN Configuration Model and Support Multiple Subnets per VLAN. - Next Generation NAC Device (EdgeWall8800) Control Plane API’s. - Mini features, Misc Support & Sustaining of Edge Wall Packet Path. ### Sr Software Engineer / Project Lead @ Syndeo Corporation Jan 1999 – Jan 2004 Senior Software Engineer and Project Lead, worked on various aspects of the Syndeo Call Management Server product in development and project lead roles. Contributed to Midddleware, Call Routing, Voice Mail, RTP Media Streaming, MGCP, SIP, SS7(ISUP and TCAP), Packet Cable efforts. Worked on various projects such as: - Packet Cable Multimedia Dynamic QoS Support per RFC. - Protocols Dispatch and Process Management Framework. - Call Routing Applet Framework. - External Process Manager (Watchdog). - Trunk Group Monitoring. - Providing Caller Name (CNAM), Toll Free Routing functionality on CMS using TCAP. - RTP based Software Media Streaming Server. - Voice Mail and Announcement Server. ### Software Engineer - II @ Cisco Systems Jan 1998 – Jan 1999 Worked on Cisco IOS-ENA architecture in the following areas: - IOS-ENA - ISDN Trunk Grouping and Configuration Templates Developed ISDN trunk-grouping configuration scheme for Cisco’s ENA platform. Scheme allowed users to define configuration templates using the Cisco CLI, these configuration template could then be applied to a selected grouping of ISDN interfaces. ### Software Engineer @ Junction Inc Jan 1998 – Jan 1998 Worked on various features such as: - Client Server Software Bus over TCP/IP by enhancing a Windows NT NDIS Driver for messaging over the control bus to support a proxy API interface over TCP/IP. - C++ Multi-threading wrapper libraries for Solaris and Windows NT. - Developed set of portable C++ wrapper libraries for abstracting multi-threading, these libraries were transparently portable between both Windows NT and Solaris resulting allowing for easier multi-platform development. ### Software Engineer - Contracting @ Davox Inc Jan 1997 – Jan 1997 Worked with Aspect ACD and Nortel Meridian and Lucent Definity PBX/ACD Switches using the Vendors Switch Call Control API’s, to provide switch interfaces to CTI servers, these switch interface servers provided ability for other components on the system to interface with these Switches for call control to support various call center applications. Worked on various features such as: - Lucent /PBX & ACD Simulator, developed an application with a state machine simulating the Lucent Definity ACD/PBX call handling behavior, was used internally to load test the Computer Telephony Interface (CTI) servers and other applications. - ASPECT CTI Server, developed server to interface with ASPECT ACD switches for call center management application. - Nortel Meridian PBX interface server. ### Systems Engineer @ Siemens Information Systems Jan 1996 – Jan 1997 Worked on various features such as: - Enhance/Support for Siemens EWSD (GSM Switch) Network Management System. - Enhanced, maintained several components for the EWSD D-900 OMS GSM Network Management System, work included adding new modules and processes to the GSM Network Management System based on customer requirements. - System backup & restore scripts. - System C-ISAM MIB access layer and tools. ## Education ### M.Tech in Computer Science Jawaharlal Nehru Technological University ### Batchelor Of Engineering in Computer Science & Computer Engineering Osmania University ## Contact & Social - LinkedIn: https://linkedin.com/in/ale-a-mansoor --- Source: https://flows.cv/alemansoor JSON Resume: https://flows.cv/alemansoor/resume.json Last updated: 2026-04-12