SOMNATH ROY
San Ramon,CA
Summary
Over 21 years of design and development experience in various layers of storage data path. In depth experience on performance engineering and tuning storage IO stack at scale under SMP environment. Seeking a position to use my skills and technical expertise in the best possible way for achieving company’s goals. LinkedIn : https://www.linkedin.com/in/connect-with-somnath-roy/
Overview
21
21
years of professional experience
Work History
Sr. Principal Engineer, System Architecture
Samsung Semiconductor Inc.
san jose, CA
06.2017 - Current
- Memory as a service using CXL based Memory and PMEM as tiers
- Converged cost optimized NVMe/NVMeOF block volume with CXL PMEM as a transparent tier on top of high capacity QLC SSDs
- High performance, highly scalable S3 compliant distributed object store from scratch using SPDK, NVMeOF and SamSung KV/Block SSD stack. This storage stack is mostly aiming for serving high BW requirement for AI training workload. (https://github.com/OpenMPDK/DSS)
- Working on designing and developing an end to end computational storage framework stack with Samsung High performance Object store and Samsung Smart SSD stack. (https://samsungmsl.com/dfs/)
Technologist, Software Dev Engineer
Sandisk
Milpitas, CA
05.2013 - 05.2017
- Worked on bringing up next generation scale out flash based distributed appliance on top of CEPH from the scratch
- Solely responsible for the distributed scale out block and object storage
- Did significant contribution in the CEPH upstream code base for performance enhancement during the year 2014-2017. (https://github.com/somnathr)
- Completed multiple Production deployment and POCs successfully.
staff software engineer
LSI Logic
milpitas, CA
01.2012 - 05.2013
- Responsible for design and developing middleware libraries for client and enterprise SATA/NVME based SSDs from the scratch.
Senior Software Design Engineer
PMC sierra
SUNNYVALE, CA
12.2009 - 01.2012
- Design/Development of middleware libraries for managing ADAPTEC RAID stack
- Responsible for writing SMIS compliant CIM provider for the stack.
MTS, III
NetApp
, INDIA
12.2007 - 12.2009
- Responsible for enhancing NetApp’s management product DFM that manages NetApp Filers in both NAS and SAN environment
- Also, worked on enhancing Performance Analyzer tool which monitors Filer’s performance.
Engineering Analyst
DELL R, Dell
, INDIA
01.2007 - 12.2007
- Responsible for enhancing, open manage diagnostics tools for SCSI tape device , SAS controller and HDDs
Software Engineer
LSI LOGIC
, INDIA
10.2004 - 12.2006
- Responsible for design/development of SNMP agent and CIM providers for LSI SCSI and SAS HBAs.
Software Developer
Usha Martin
, INDIA
07.2003 - 09.2004
- Responsible for maintaining and enhancing billing software product
Education
BACHELOR OF COMPUTER SCIENCE AND ENGINEERING -
JADAVPUR UNIVERSITY
01.2003
HIGHER SECONDARY -
UTTARPARA GOVT. HIGH SCHOOL
01.1998
SECONDARY -
UTTARPARA GOVT. HIGH SCHOOL
01.1996
Skills
- C,C,STL,BOOST, Shell scripting, LINUX system programming, GOLANG, SPDK
- RHEL, SUSE, UBUNTU, FEDORA, UNIX, WINDOWS
- Working knowledge on Distributed store like CEPH, Minio
- Deployed Distributed store like BeegFS, GlusterFS, Lustre, HDFS as part of reference benchmarking
- Embedded Object store like LevelDb, RocksDb, ZetaScale (SanDisk Object Store)
- Profilers like Valgrind, Intel Vtune, Perf
- Protocol like SCSI, SAS, NVMe, NVMeOf, SNMP, CXL
Affiliations
Patents:
- System and method for remote procedure call for key-value target server. (US 11182228 · Issued Nov 23, 2021)
- Hardware independent simple network management protocol based on a generic data collection scheme. (US 2008/0133,765 · Issued Jan 16, 2007)
- Hashed based efficient KV to Block Translation. (US17/321326 · Filed May 14, 2021 )
- Distributed R/W Lock Design with KV Over NVMeoF (US16/886748 · Filed May 28, 2020)
- Efficient indexing on top of KV devices (US16/820356 · Filed Mar 16, 2020)
- S3 over RDMA (Filed)
Conference:
Speaker at reputed conferences like SDC, FMS,
SNIA Persistent Memory Summit, NVIDIA GTC
References
Satadal Bhattachariya, Director Product Marketing, Uber, Cell : 510-648-0643
Rohit chawla, Google, Cell : 512-762-6124
Anirban Ray, Senior Manager, NVIDIA, Cell : 650-619-6691
Interests
- Building a soccer community with interest in playing safe, minimum contact soccer. This way old but aspirational soccer players like me can continue playing long term without any injury worries
- Love of Music
Timeline
Sr. Principal Engineer, System Architecture
Samsung Semiconductor Inc.
06.2017 - Current
Technologist, Software Dev Engineer
Sandisk
05.2013 - 05.2017
staff software engineer
LSI Logic
01.2012 - 05.2013
Senior Software Design Engineer
PMC sierra
12.2009 - 01.2012
MTS, III
NetApp
12.2007 - 12.2009
Engineering Analyst
DELL R, Dell
01.2007 - 12.2007
Software Engineer
LSI LOGIC
10.2004 - 12.2006
Software Developer
Usha Martin
07.2003 - 09.2004
BACHELOR OF COMPUTER SCIENCE AND ENGINEERING -
JADAVPUR UNIVERSITY
HIGHER SECONDARY -
UTTARPARA GOVT. HIGH SCHOOL
SECONDARY -
UTTARPARA GOVT. HIGH SCHOOL
Similar Profiles
Andrew AlarconAndrew Alarcon
Technician at Samsung Semiconductor Inc.Technician at Samsung Semiconductor Inc.
PRIYANKA KACHAREPRIYANKA KACHARE
Senior Engineer, L1 and PHY Cellular Engineering at Samsung Semiconductor Inc.Senior Engineer, L1 and PHY Cellular Engineering at Samsung Semiconductor Inc.
Byung Yeol KangByung Yeol Kang
Industrial Electrician at Samsung Semiconductor Inc.Industrial Electrician at Samsung Semiconductor Inc.