Ashish Puri

CTO

Pune, Maharashtra, India21 yrs 9 mos experience

Most Likely To SwitchHighly Stable

Key Highlights

Gold Medalist from IIT Bombay in Computer Science
Expert in building enterprise-grade storage solutions
Strong leadership in mentoring technical teams

Stackforce AI infers this person is a Systems Architect specializing in enterprise storage solutions and distributed systems.

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Skills

Core Skills

StorageSystems ProgrammingDistributed SystemsTeam LeadershipContainerizationObject StorageFile SystemsKernel Programming

Other Skills

AIXAgile MethodologiesAlgorithmsAsynchronous Monitoring frameworkCClusterData StructuresDebuggingDevice DriversGNU DebuggerHP-UXHPUXHigh AvailabilityIBM AIXKernel

About

Experience working in the USA and in India with public MNC, early stage startup, and mid-size pre-IPO companies. Experienced Systems Architect with strong technical leadership and hands-on product engineering experience in storage, file-system, datapath, NVMe, SPDK, kernel programming, system programming, distributed systems, replication, clustering, containers, docker, k8s, scalability, networking, and virtualization. Expertise in building multiple high quality components/ products from scratch used in enterprise grade solutions. Also worked with highly complex stable code. Overall product engineering experience - involves R&D, design, development, execution, and product support. Leadership experience includes building and mentoring strong technical teams, driving engineering (development & test), collaborating with PMs, sales, and impart technical training. Gold Medalist and topper MTech Computer Science, IIT Bombay

Experience

21 yrs 9 mos

Total Experience

5 yrs 5 mos

Average Tenure

5 yrs 4 mos

Current Experience

Robin.io, a rakuten symphony company

2 roles

Senior Technical Director

Promoted

Oct 2023 – Present · 2 yrs 8 mos

Began the work to support NVMe devices using SPDK. Re-imagined the core storage stack which would replace the front-end (how we expose the block device), back-end (how we interact with the physical disk), and everything in between (threading model, locking etc.).
Part time manager for engineers working on block storage in India.

NVMeSPDKstorage stackblock devicethreading modellocking+2

Technical Director

Jan 2021 – Sep 2023 · 2 yrs 8 mos

Joined as first person in Pune. Helped setup the Pune office and grew the team to around 30 super strong engineers including two very successful off-campus drive to hire freshers. This is done along with hands-on technical work.
Part time Pune site lead selecting office, over looking operations, working with the space providers, and other stake holders.
Worked on the distributed block storage team and developed small features/ bug fixes.
Began exploring NVMe/ SPDK to extract best performance for our virtual block device.

distributed block storageNVMeSPDKteam buildingoperations managementDistributed Systems+1

Cohesity

Staff Engineer 2

Dec 2018 – Jan 2021 · 2 yrs 1 mo · Pune Area, India

Apporbit

Sr. Principal Software Engineer

Jun 2015 – Dec 2018 · 3 yrs 6 mos · Pune Area, India

Apporbit closed shop in Dec 2018 and we were acqui-hired by Cohesity.
Joined quite early and became one of the key technical person in the company. Lead and developed significant portions of distributed block device for container native storage with efficient snapshots/ clones.
Also worked on Appswitch which re-imagined, simplified, and improved efficiency of the networking in k8s world. Developed first version of V2C tool which would create a container from a VM.

distributed block devicecontainer native storagenetworkingk8ssnapshotsclones+2

Symantec

3 roles

Sr. Principal Software Engineer

Dec 2012 – Jun 2015 · 2 yrs 6 mos

Moved back to the home country from Veritas/ Symantec and worked on the following areas:
Continued on the VFR and released a version for the Violin Memory which was based on file snapshot technology instead of the file-system checkpoint technology.
Moved to the object storage team and build a feature to rebuild a disk and did prototype of the erasure coding.

file snapshot technologyobject storageerasure codingObject StorageFile Systems

Principal Software Engineer

Promoted

Apr 2008 – Dec 2012 · 4 yrs 8 mos

Moved to SF bay area from Veritas/ Symantec and worked in the following areas:
As a tech lead released the first version of kernel module called AMF (Asynchronous Monitoring framework) across Linux/ HPUX/ Solaris and AIX. It would deduct the state change of a resource (process died/ file-system unmounted etc.) hooking itself in the kernel code path without any change in the core kernel and using the public APIs. It reduced the monitoring overhead drastically (90%) and decreased the duration of the failover.
Moved to the file-system team from the VCS team and wrote the first version of VFR (Veritas File Replicator).

kernel moduleAsynchronous Monitoring frameworkLinuxHPUXSolarisAIX+2

Sr Software Engineer

Jul 2004 – Mar 2008 · 3 yrs 8 mos

Joined as Associate software engineer and finished as Sr. Software engineer. Learned the domains and art of kernel/ hypervisor programming.
Joined VERITAS which was soon acquired by Symantec in 2005.
During this period worked on following as part of the Veritas Cluster Server group:
kernel modules across HPUX/Linux/ Solaris related to maintaining membership in the distributed system and providing service to higher layer related to atomic broadcasting messages to all the members in the cluster.
Worked on Xen hypervisor in page fault handling code to get a list of dirty pages which needs to be transferred to the secondary machine over RDMA/ Infiniband. Was a key member of the XSFT - Transactional software based Fault Tolerance team.

kernel modulesXen hypervisordistributed systemsKernel ProgrammingDistributed Systems