May 2022 – Mar 2023 · 10 mos

• EMMC/UFS based MNAND TLC, QLC based Media firmware:
• Flash Firmware Development and Design
• Flash sequences for QLC/TLC
• Analyzed and designed firmware according to block budget, caching requirement, TBW, performance etc

Jun 2020 – Jun 2022 · 2 yrs

Oct 2018 – Jun 2020 · 1 yr 8 mos · Pune Area, India

• Seagate SAS SSD Host Interface and Media firmware(ARM R8 based):
• 1. Flash Firmware Development and Design
• Designing and Development of media firmware for enterprise flash devices.
• Successfully did bring up of media controller and flash memory for VCS,
• palladium and silicon.
• Design and develop FW architecture based on multiple ARM R8s and M0s.
• Wrote firmware stack for protocol implementation(toggle) for different flash
• memory types(SLC,TLC,MLC) from multiple vendors.
• Handling various flash timing to give maximum throughput on flash IOs
• Debugging using JTAG module and TLA(flash analyser) on ARM R8 and M0.
• 2. SAS Host Interface firmware for SSD drives(ARM R7 and cortex M0 based).
• Worked to develop and design major high performance and Low
• Performance SAS Commands
• Responsible for designing and developing firmware to handle all types of
• media errors in host interface and configuring Host Controller accordingly.
• Developed module in Host Interface to handle flash IO completions from
• back-end.
• Developed firmware to handle SAS Skipmask Commands(customer specific
• Seagate IP). Enhanced performance of these commands.
• Researched and developed firmware to configure hardware block to handle
• host traffic on PI(Protection Information) enabled drives.

Oct 2016 – Oct 2018 · 2 yrs · Pune Area, India

Jul 2015 – Oct 2016 · 1 yr 3 mos · Pune Area, India

Oct 2013 – Jun 2015 · 1 yr 8 mos · Pune Area, India

• Worked with Windows Network Drivers NDIS 5.x, NDIS 6.x for deserialized miniport
• and protocol drivers for Windows server 2008 R2 and 2012.
• Windows Kernel mode live debugging through virtual machines and host using WinDbg
• Xperf , kd, Visual Studio.
• Worked with TCP/IP subsystem and packet manipulation for routing to achieve load
• balancing system on various servers.
• Worked with ‘Wireshark by generating pcap files’ through ‘tcpdump’, ‘netstat’, and also
• wrote ‘crontab’ scripts for periodic executions.
• Worked with ‘Kernel Netfilter Subsystem’ of Linux for packet rerouting and
• manipulations through pre-routing hooks as kernel modules.
• Designed, Developed and Integrated Database using ‘Mariadb C library’ for product
• ‘Global Dispatcher’ for its linux and windows operations.
• Designed Scheduling policies for load balancing of network traffic on hosts having
• multiple servers.(Geo-based)