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Sushmita Bhattacharya

Engg Leadership | Storage | Protocols | Cloud | Operating System | Virtualization | Linux | SaaS | Platform Engineering

Bengaluru

19+ years of work experience

Oracle
Sep 20242 yrsPresent

Bengaluru

Oracle
Dec 20212 yrs 10 mosSep 2024

Bangalore Urban, Karnataka, India

Managing a team of engineers working on Oracle Linux Userspace and Virtualization (KVM/qemu/libvirt) components. My team is responsible for fixing issues in various system components in Linux. We also develop enhancements and optimizations for Linux which benefit Oracle's Database and Cloud environments. Oracle Linux is highly customized for Oracle software, especially Database and cloud platforms. Solutions/fixes to Linux are delivered while collaborating with open source communities and contributing to OpenSource projects. The primary components that we maintain are:- Performance Co-Pilot (pcp) – Suite of performance monitoring software on Linux Libvirt – Virtualization API for Linux OLCNE – Cloud Native environment based on Kubernetes Systemd – System and services manager for Linux SElinux – Security Enhanced Linux Corosync/Pacemaker - Linux HA Qemu/KVM - Linux vm virtualization
Oracle
Sep 20192 yrs 4 mosDec 2021

Bangalore

Worked on Oracle Linux system software stack. Mentored and guided a team of engineers working mainly on Oracle Linux Userspace components. My team was responsible for fixing issues in userspace packages in Linux, and also coming up with new enhancement ideas to improve the products that we maintain, and implementing them while collaborating with open source communities. Few of the most important components handled are :- - Kubernetes - Systemd - Performance Co-pilot - libVirt - SeLinux
Novell
Oct 20125 yrs 8 mosMay 2018

Bangalore

- Scoped, created PRD, designed and implemented critical parts of a highly scalable, transparent storage tier product which enables users access their files from public/private cloud transparently through the Novell Open Enterprise Server. Tech stack: C, golang, AWS, REST. This enhancement puts the Enterprise Server storage product from a “dormant” position to an “exciting” position in customers’ mindscape and helped turn around the product significantly. - Led various enhancements on the Open Enterprise Server (earlier Novell Netware) SMB1/SMB2 protocol stack. Supported customers/field by giving product demos, presentations, and custom proof of concepts. - Re-architected the authorization architecture for the SMB protocol stack to overcome rights synchronization issues across various components. - Designed and developed a new RPC endpoint (‘named pipe’) over SMB protocol exposing Novell-style ACL management functions on the server as an interface over SMB - Designed and implemented various new features on SMB, e.g DOS name support over SMB/SMB2, better support for Novell’s proprietary Dynamic storage technology on the protocol stack. - Designed and developed support for Alternate Data Streams (ADS) in CIFS protocol stack. Though this is an optional feature for an SMB server, not supporting this causes many interoperability issues, especially on the MAC client platforms. - Analyzed and fixed SMB performance issues, including slow listing issue for large directories from MAC clients. - Responsible for making right technical decisions for various features/issues for the team, for the upcoming release and issues found in past releases - Represented Novell protocols team in Novell’s global conference BrainShare 2014 in Salt Lake City, Utah. Gave presentation to customers on the features in the upcoming release.
Novell
Oct 20122 yrsSep 2014

Bangalore

File access protocols development
Network Appliance
Nov 20084 yrsOct 2012

Bengaluru Area, India

Onboard Antivirus for Clustered OnTAP 8.0 :- Netapp’s Onboard-antivirus solution was a distributed software component running on multiple filer nodes. Led a 4-member team in taking ownership of Onboard Antivirus component in Bangalore . Led the integration of a new third-party antivirus software vendor to be supported on NetApp FAS systems. Had discussions with third party vendor and came up with design of the Update Manager , Telemetry Manager , Scan engine and other components. Designed and implemented the Scan Engine component. Lead reviewer of code for entire set of OnBoard Antivirus components. Successfully led the project from conception to QA certification. Technologies : Data OnTAP, Antivirus, FreeBSD, C, RPC Centralized Management Software for OnTAP, virtualized environments (OnCommand) :- Led the design, development, integration and unit test efforts for a multithreaded notification processing system. This system manages the flow of information between host servers and the management server and ensures continuous operation even in case of temporary failures of one or more of the components. Also designed and developed an update management solution which manages host software updates in a centralized way.
Texas Instruments India
Aug 20053 yrs 4 mosNov 2008

Developed a number of features on TI's GPS firmware chip. Some prominent ones are the development of MEIF protocol stack between the host processor and the GPS chip; and developing a host wakeup scheme which uses optimum power on the host based on the data transfer needs of the GPS subsystem. Technology : Nucleus (RTOS), C
Honeywell
20041 yr2005

This project involved maintenance & enhancement on Honeywell's market leading EGPWS flight-safety embedded system which monitors data from various sensors and detects potential threat situations for an aircraft. - Developed various features for this real-time system - Developed unit component stubs for various modules Technologies : C, RTOS, LDRA

Sushmita’s AI Stack

claude
claude
codex
codex

Education

Jadavpur University

Bachelor of Engineering (B.E.), Computer Science and Engineering

Jadavpur University

Indian Institute of Technology, Kharagpur

Integrated MSc, Physics

Indian Institute of Technology, Kharagpur

19961996

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Headline

Engg Leadership | Storage | Protocols | Cloud | Operating System | Virtualization | Linux | SaaS | Platform Engineering

About

With over two decades of experience in software development and technical management in platform, storage, and cloud domains, I currently serve as a Senior Manager at Oracle. My team focuses on maintaining and enhancing critical components of Oracle Linux, such as virtualization technologies (KVM/QEMU/Libvirt), security (SELinux), performance monitoring (PCP), system management (Systemd), and containerization (Podman), among others. We actively collaborate with open-source communities to contribute to and optimize Linux products for Oracle’s cloud and database environments. Committed to fostering innovation and operational efficiency, our work enhances the performance and reliability of Oracle’s tailored Linux solutions for enterprise needs.

Location

Bengaluru

AI stack

claude

codex

Work experience

Senior Manager at Oracle, Sep 2024 - Present · 2 yrs, Bengaluru

Software Development Manager 2 , Oracle Linux at Oracle, Dec 2021 - Sep 2024 · 2 yrs 10 mos, Bangalore Urban, Karnataka, India, Managing a team of engineers working on Oracle Linux Userspace and Virtualization (KVM/qemu/libvirt) components. My team is responsible for fixing issues in various system components in Linux. We also develop enhancements and optimizations for Linux which benefit Oracle's Database and Cloud environments. Oracle Linux is highly customized for Oracle software, especially Database and cloud platforms. Solutions/fixes to Linux are delivered while collaborating with open source communities and contributing to OpenSource projects. The primary components that we maintain are:- Performance Co-Pilot (pcp) – Suite of performance monitoring software on Linux Libvirt – Virtualization API for Linux OLCNE – Cloud Native environment based on Kubernetes Systemd – System and services manager for Linux SElinux – Security Enhanced Linux Corosync/Pacemaker - Linux HA Qemu/KVM - Linux vm virtualization

Principal Member Of Technical Staff, Oracle Linux at Oracle, Sep 2019 - Dec 2021 · 2 yrs 4 mos, Bangalore, Worked on Oracle Linux system software stack. Mentored and guided a team of engineers working mainly on Oracle Linux Userspace components. My team was responsible for fixing issues in userspace packages in Linux, and also coming up with new enhancement ideas to improve the products that we maintain, and implementing them while collaborating with open source communities. Few of the most important components handled are :- - Kubernetes - Systemd - Performance Co-pilot - libVirt - SeLinux

Associate Senior Specialist at Novell, Oct 2012 - May 2018 · 5 yrs 8 mos, Bangalore, - Scoped, created PRD, designed and implemented critical parts of a highly scalable, transparent storage tier product which enables users access their files from public/private cloud transparently through the Novell Open Enterprise Server. Tech stack: C, golang, AWS, REST. This enhancement puts the Enterprise Server storage product from a “dormant” position to an “exciting” position in customers’ mindscape and helped turn around the product significantly. - Led various enhancements on the Open Enterprise Server (earlier Novell Netware) SMB1/SMB2 protocol stack. Supported customers/field by giving product demos, presentations, and custom proof of concepts. - Re-architected the authorization architecture for the SMB protocol stack to overcome rights synchronization issues across various components. - Designed and developed a new RPC endpoint (‘named pipe’) over SMB protocol exposing Novell-style ACL management functions on the server as an interface over SMB - Designed and implemented various new features on SMB, e.g DOS name support over SMB/SMB2, better support for Novell’s proprietary Dynamic storage technology on the protocol stack. - Designed and developed support for Alternate Data Streams (ADS) in CIFS protocol stack. Though this is an optional feature for an SMB server, not supporting this causes many interoperability issues, especially on the MAC client platforms. - Analyzed and fixed SMB performance issues, including slow listing issue for large directories from MAC clients. - Responsible for making right technical decisions for various features/issues for the team, for the upcoming release and issues found in past releases - Represented Novell protocols team in Novell’s global conference BrainShare 2014 in Salt Lake City, Utah. Gave presentation to customers on the features in the upcoming release.

Specialist at Novell, Oct 2012 - Sep 2014 · 2 yrs, Bangalore, File access protocols development

Member Technical Staff at Network Appliance, Nov 2008 - Oct 2012 · 4 yrs, Bengaluru Area, India, Onboard Antivirus for Clustered OnTAP 8.0 :- Netapp’s Onboard-antivirus solution was a distributed software component running on multiple filer nodes. Led a 4-member team in taking ownership of Onboard Antivirus component in Bangalore . Led the integration of a new third-party antivirus software vendor to be supported on NetApp FAS systems. Had discussions with third party vendor and came up with design of the Update Manager , Telemetry Manager , Scan engine and other components. Designed and implemented the Scan Engine component. Lead reviewer of code for entire set of OnBoard Antivirus components. Successfully led the project from conception to QA certification. Technologies : Data OnTAP, Antivirus, FreeBSD, C, RPC Centralized Management Software for OnTAP, virtualized environments (OnCommand) :- Led the design, development, integration and unit test efforts for a multithreaded notification processing system. This system manages the flow of information between host servers and the management server and ensures continuous operation even in case of temporary failures of one or more of the components. Also designed and developed an update management solution which manages host software updates in a centralized way.

Senior Software Systems Engineer at Texas Instruments India, Aug 2005 - Nov 2008 · 3 yrs 4 mos, Developed a number of features on TI's GPS firmware chip. Some prominent ones are the development of MEIF protocol stack between the host processor and the GPS chip; and developing a host wakeup scheme which uses optimum power on the host based on the data transfer needs of the GPS subsystem. Technology : Nucleus (RTOS), C

Senior Software Engineer at Honeywell, 2004 - 2005 · 1 yr, This project involved maintenance & enhancement on Honeywell's market leading EGPWS flight-safety embedded system which monitors data from various sensors and detects potential threat situations for an aircraft. - Developed various features for this real-time system - Developed unit component stubs for various modules Technologies : C, RTOS, LDRA

Education

Bachelor of Engineering (B.E.), Computer Science and Engineering, Jadavpur University

Integrated MSc, Physics, Indian Institute of Technology, Kharagpur