Sep 2019 – Jan 2024 · 4 yrs 4 mos · Bengaluru, Karnataka, India · On-site

• Technology: Mainframe OS & Database
• Leadership Assignment --
• In APAC Extended Leadership Team, attended monthly program reviews, quarterly ELT meetings, annual planning meetings, and other leadership discussions.
• Co-leader of APAC New Compute Areas (Quantum Computing), led efforts to equip 3%-5% of all engineers with Quantum computing fundamentals.
• Led APAC Technology Board, a tech forum of senior technical architects, to share insights and drive initiatives. Was instrumental in creating APAC Patent Incubation Lab portal and forming Patent Mentorship Group. Led brainstorming discussions on Serverless computing. Facilitated sessions on SBoM (Software Bill of Materials), DevOps, IoT, Blockchain, Quantum, etc.
• Co-leader of global Quantum Interest Group for research, innovation & development on Quantum Computing.
• Technical Assignments --
• A part of Enterprise Computing Solutions BU - OS2200 Core (India) and Database (US) teams, worked on UDS & UDSC (Universal Data Systems Control), DMS (Data Management System) and DB Agent products and database modernization efforts. Received product transition from distinguished engineer on enterprise database internals. Participated in knowledge management efforts in India team.
• Mentorship Assignments --
• Co-leader & SME in annual Unisys Innovation Program to decide topics, evaluate projects, judge finalists.
• Co-leader & SME of Unisys Campus Connect program, to given sessions on various topics.
• SME to guide final year engineering students on Campus Research projects -
• 2022-23: Quantum Annealing Based ML for Anomaly Detection in Cybersecurity Data.
• 2021-22: Quantum Safe Algorithm for IPSec (published in IEEE Xplore).
• 2020-21: Security in MANET (Mobile Ad-hoc Network).
• My ideas on mobile infrasound, containerized workspace and Docker in OS 2200 got selected in respective internal events. My idea on Quantum RNG in CPF environment is part of solution roadmap. Spearheaded innovation activities and hackathons & won accolades.

May 2014 – Sep 2019 · 5 yrs 4 mos · Bengaluru, Karnataka, India · On-site

• Technology: Cisco MDS 9000 SAN (Storage Area Networks) Switch
• Project: NVMe Support and SAN Analytics
• Skills: C, NX-OS (Linux), SQLite, NVMe, Fibre channel, SAN storage switching
• Additional skills: gRPC, Networking, Apache Splunk, Docker, Control-plane
• Team size: 4 (1+ year)
• Architected and developed from scratch telemetry and analytics feature on NX-OS for NVMe and Fibre channel protocols in SAN switches. Worked on its perf & scale enhancement. Also worked on developing NVMe support in new platforms. Fixed multiple customer issues and attended support calls. Created analytics setup by streaming telemetry data stored in SQLite database on control plane through gRPC over network to Apache Splunk application running in Docker.
• Project: Fibre Channel IO Acceleration & Cluster feature development
• Skills: C, NX-OS (Linux), Fibre channel, Clustering, Data-path, GDB
• Additional skills: Cavium Octeon multi-core network processor architecture, Data-path firmware OS
• Team size: 2 (2 years)
• Worked on development of accelerating the Fibre channel traffic between host-side & target-side switches. Also worked on development of cluster feature for core & edge switches to enable this acceleration. Added support for the new platforms. Also worked for porting on 64-bit hardware. Extensively used GDB for debugging.
• Project: FCIP Data-path development
• Skills: C, NX-OS (Linux), FCIP (Fiber Channel over IP), TCP/IP networking, Data-path processing, GDB
• Additional skills: Cavium Octeon multi-core network processor architecture, Data-path firmware OS
• Worked on development of FCIP protocol implementation in data-path processing on SAN storage switch. Worked on development of network simulator to generate TCP/IP traffic.
• Earned Cisco Security Ninja Green Belt certification.

Aug 2011 – May 2014 · 2 yrs 9 mos · Bengaluru, Karnataka, India · On-site

• Technology: NAS Network Storage Filesystem
• Team: CIFS Dev Engineering, Microsoft BU
• Project: CIFS Group Policy Protocol Extension Development
• Skills: C++, Unix/Linux system programming, CIFS protocol, Networking
• Additional skills: Active directory, GPO (Group policy objects), LDAP, SMB, RPC, Clustered Data ONTAP
• Team size: 2 (1+ year)
• Worked on CIFS protocol development for Active Directory (Domain Controller) - Group Policy Extension in NetApp Filers running Clustered Data ONTAP. Designed it from scratch and unit tested after development.
• Project: Onboard Antivirus Server Development
• Skills: C++, Unix/Linux system programming, CIFS protocol, Networking
• Additional skills: Antivirus technology, State machines, Clustering, Multi-tenancy, WAFL, Clustered DataONTAP
• Worked on development of antivirus library (from Symantec, McAfee) integration for on-access and on-demand file scanning in NetApp filer running Clustered DataONTAP. Also worked on development of its management framework. Filed my third invention disclosure.

Mar 2009 – Jul 2011 · 2 yrs 4 mos · Bengaluru, Karnataka, India · On-site

• Technology: Server Virtualization
• Project: White-box development for ESX VMkernel hypervisor & drivers
• Skills: C/C++, Unix/Linux system programming, Linux kernel programming, Virtualization, Hypervisor, vSphere
• Additional skills: Python, Cloud computing, BusyBox, Multithreading, Networking, IPC, System call internals, Unit testing
• Team size: 4
• Developed many white-box programs for the virtualization kernel and its hypervisor components, like VMM (virtual machine monitor), and drivers, like balloon driver, on ESX/ESXi. Wrote many kernel modules and device drivers. Worked on determining POSIX compliance of userspace system APIs. Performed unit testing of the APIs.
• Did research on hypervisor internals for high performance virtualization. Filed my second invention disclosure.
• Earned VMware Certified Professional on vSphere 4 certification.

Jul 2006 – Jan 2009 · 2 yrs 6 mos · Bengaluru, Karnataka, India · On-site

• Technology: Solaris Server Diagnostics
• Project: SunVTS memory diagnostics development
• Skills: C, Solaris, Unix system programming, memory march tests, x86 architecture, GDB
• Additional skills: QPI & SerDes (differential signaling) serial interconnect, DDR FB-DIMM server memory architecture, NUMA cache coherency, Sun SPARC architecture
• Team size: 2 (2+ years)
• A part of DEG (Diagnostics Engineering Group) team, I worked on development of memory diagnostics software component in SunVTS product for Intel x86 (Nehalem) micro-architecture. Implemented many memory march tests for QPI interconnects between CPU, cache & RAM. Debugged (using GDB) and fixed issues. Developed deep understanding of Intel's Nehalem architecture before its release. Submitted my first invention disclosure.
• Technology: SAN Storage Virtualization
• Project: Sun StorEdge PSX1000 / 6920 virtualization engine development
• Skills: C++ on VxWorks, SAN (Storage Area Networks), Storage virtualization, Fibre channel, SCSI
• Team size: 2 (6 months)
• Worked on development of SAN storage virtualization engine (PSX1000) in Sun StorEdge 6920. Fixed bugs and received excellent KT.

Apr 2005 – Jun 2006 · 1 yr 2 mos · Bengaluru, Karnataka, India · On-site

• Client: Engenio Information Technologies (LSI Logic)
• Technology: Storage Area Networking - SAN Storage Firmware
• Project: Legacy firmware development
• Skills: C++, VxWorks, FC (Fiber Channel) protocol, SCSI protocol, RAID, MDB
• Team size: 2
• Worked on developing features, firmware debugging, RCA (root cause analysis) and fix for reported issues in storage controller firmware.
• Overseas Project: Firmware debugging KT
• Location: Wichita, Kansas, USA
• Skills: VxWorks debugging with MDB, RCA process, FCP, SCSI, RAID
• Team size: 3
• Rigorous training received on firmware debugging using MDB and other tools. Debugged and fixed issues successfully.
• Extensive KT on FC (Fiber channel), SCSI and RAID processing in controller firmware.
• Received commendation letter from the client.

Dec 2003 – Mar 2005 · 1 yr 3 mos · Bengaluru, Karnataka, India · On-site

• Client: GE Global Research at John F. Welch Technology Center (JFWTC), Bangalore
• Technology: High Performance Computing
• Project: "HPC Clustering with Linux"
• Skills: C/C++, Linux internals, Linux system programming, Linux kernel programming, Linux hardening, Linux clustering, High performance computing.
• Team size: 4
• Worked on setting up and configuring Linux HPC cluster and nodes for High Performance Computing, and running scientific applications on them. Also carried out performance optimization, system security and debugging.
• Project: "Design for Six Sigma (DFSS) Parallel"
• Skills: C/C++ on Linux, Linux system programming, Linux internals, Multithreading, Network programming, High performance computing
• Team size: 3
• Worked on development of this parallel computing client-server application for Six Sigma workflows.
• Clients interface in MS Excel on user desktops sent commands to server application running on Linux cluster. Implemented the complete workflow.
• Project: "Harris Corner Detection Method"
• Skills: C++ on Windows, Image processing, Algorithm
• Team size: 1
• Learnt, designed and implemented the algorithm in C++ for scientific computing applications.

Jan 2003 – Jul 2003 · 6 mos · Jamshedpur, Jharkhand, India · On-site

• Project: "Maintenance of Non-Conformity of Standards & Procedures (Lotus Domino R5)"
• Skills: Workflow automation, database, algorithm
• Team size: 2
• This project was meant for automating the entire auditing process — to keep track
• with the one-time-made audit-plan, prepared by the Internal Quality Administrator
• every year and for every department. I worked on this workflow automation design and coding.
• And, received commendation on presenting my work, from the management.