Jun 2019 – Nov 2023 · 4 yrs 5 mos

Nov 2018 – May 2019 · 6 mos · San Francisco Bay Area

• Designed and implemented raw socket Web APIs for a proprietary server-side JavaScript Runtime to enable Serverless compute on a world-wide network of PoPs for TCP based applications.

Sep 2017 – Oct 2018 · 1 yr 1 mo · Sunnyvale, CA

• Led next generation wireless controller architecture to scale to large number of nodes and enable business growth with new deployment models.
• Introduced semantics of RT/NRT/Batch processing with data pipeline and stream processing architectures using data caching layer (Redis), pubsub messaging (Kafka), synchronous distributed invocations, time series optimized databases (InfluxDB) improving resiliency in data overload scenarios
• Separation of control and management software
• Formal data model (YANG) based configuration from GUI for legacy switches (ICX) using CLI/SNMP
• Edge computing initiative with IoT and network services integration

Nov 2013 – Sep 2017 · 3 yrs 10 mos

• Architect and problem solver in Security group.
• Resolved performance and scalability issues of SRX5K ALGs w/ NAT
• Seamless scaling to any number of processor clusters (previously limited to 4)
• 60% improvement in data path performance, made proposal for further improvement
• Authored white paper on Zero Touch Provisioning of uCPE devices for AT&T
• Developed proofs of concept for
• "Density deployments" of containerized (docker) SRX (cSRX), demonstrated up to 128 containers on a single system. As part of consideration for cloud-scale deployment of security solution
• Proposal of Contrail vRouter integration with cSRX for SD-WAN solution
• An innovative way of improving reliability and automated debug of SRX product line by mining a mind map (using Neo4j graph database) created by LLVM compiler technology (call/data flow analysis et al)

Feb 2012 – Oct 2013 · 1 yr 8 mos · Santa Clara

• Chief software architect of Multi-Core processor group targeting networking infrastructure with XLR/XLS/XLP/XLP2 processor families w/ up to 128 CPUs @ 2.5GHz and 160Gbps of integrated networking & crypto on a single die and up to 8 cache coherent NUMA nodes. Part of the core team at RMI Corp which was acquired by Netlogic Microsystems for $400M in 2009, which in turn was acquired by Broadcom for $4B in 2011.
• Architected Broadcom's NFV platform and ETSI accepted virtual function state migration and interoperability PoC with partnerships with AT&T, BT, Tieto. Drove industry initiatives to adopt non-x86 architectures to create more optimized COTS solutions.
• Drove ARM software ecosystem development, for micro-server and networking markets, to compete with Intel through steering committee membership in Linaro consortium (LEG & LNG) and ARM server group
• Architected new packet IO model for control traffic of Broadcom’s 640Gbps+ switches (Trident
• family). Demonstrated over 500% performance improvement with XLP as a control processor.
• Architected multi-os packet processing frameworks, data plane execution environments on bare metal and Linux user space, custom Linux kernel extensions for line rate throughputs (10Gbps to 40Gbps) with Routing, IPSec, TCP, Snort on multiple processor generations from XLR to XLP. Evangelized multi-core for packet processing applications, advised architects at Tier-1 companies such as Cisco, Huawei, Dell, Juniper on solutions for best performance on multi-core, worked together with Cisco architects to port and demonstrate line rate throughputs on multi-core with IOS and PIX firewall.
• Single-handedly architected, developed and implemented SDK for 1st generation XLR processor.

Nov 2009 – Feb 2012 · 2 yrs 3 mos

• Led porting of Cisco's multiple application stacks to win significant business, teamed up with biz dev to build comprehensive software ecosystem, setup and mentored new software management structure to work effectively with offsite teams, led multiple successful new processor bring-ups in record times, delivered first MIPS port for XEN hypervisor.

Mar 2007 – Oct 2009 · 2 yrs 7 mos

• Integrated India development team, instituted development processes, procured customer requirements to address SDK limitations and delivered many timely releases.

Nov 2005 – Mar 2007 · 1 yr 4 mos

Sep 2002 – Nov 2005 · 3 yrs 2 mos

• Maintained MIPS & XLR port of Linux kernel from v2.5 through 2.6.16-16. Developed foundation SDK for XLR complete with Firmware, Linux kernel port, Cross-LFS root filesystem, bare metal packet processing execution environment, GNU Toolchain, functional simulator.

Jul 2002 – Sep 2002 · 2 mos

• Intransa was a high performance iSCSI storage startup, based on custom storage controllers & multi-core processors. Implemented RFC drafts of iSCSI protocol and enhanced SCSI Emulation layer. Resolved issues with MIPS (dual core SiByte) port of VM subsystem in Montavista Linux v2.4.18+.

Jan 2001 – Apr 2002 · 1 yr 3 mos

• Nexsi was a content services router startup, pioneered use of a distributed network of multiple 16-way cache coherent multi-core processors with a switch fabric on a chassis architecture. Developed high performance, reliable link layer software between multi-core processors. Played a key role in first silicon bring-up. Designed and developed a fault tolerant flash file system for boot images and run time configurations.

Aug 2000 – Jan 2001 · 5 mos

• Built secure credit card transaction processing applications and custom Linux distribution with minimal footprint.

Feb 1999 – Aug 2000 · 1 yr 6 mos

• Worked on Base Station Software running on a Solaris Sun Sparc 4-way multi-core processor for Thuraya, a Satellite Phone provider widely deployed in Europe, Middle East, Africa and Asia. Improved system performance by 200% by redesigning message passing between subsystems in a multi-threaded (M:N thread model) environment. Drove Object Oriented Design and Development methodologies in the team. Developed key Network Power and Call Connection management module.

Jun 1998 – Aug 1998 · 2 mos

• Developed Tcl/Expect based Automation Test Environment for Base Station software