Aug 2020 – Dec 2022 · 2 yrs 4 mos · New York City Metropolitan Area

Feb 2019 – Mar 2020 · 1 yr 1 mo

• ZeroWait – Acton, MA
• Languages and Technologies: AWS -IAM, -S3, -EC2, REST, JSON, Android , Django,Postgres,
• SQLite.
• Functionality :
• Designed and developed end to end customer management system for small businesses like restaurants , salons etc.
• Features included realtime waitlist and reservation management along with customer data analytics This also enabled small businesses to make automated calls and messages to customers to notify service availability.
• This is the only service available in market which updated customer status in realtime.
• Small businesses where provided with android tablets to use Zerowait services along with QR codes for customers to scan when entering small business, thus eliminating manual staff intervention in hosting guest
• Design and implementation:
• System was designed with android app as the client interface and Django framework in the backend hosted on AWS EC2 instance
• The whole project was designed with MVC pattern in mind and used REST API service to communicate android client with django server
• Used JIRA to keep track of open issues and project features
• This project made use of android database SQLite to cache results and optimize REST calls to server Used AWS IAM and cognito services for authenticating valid customer and throttling various zerowait features using API keys
• Designed easy onboarding web service using bootstrap and django for new small businesses to start using zerowait
• Used Dockers to containerize deployments to AWS server using CI/CD pipeline
• Used Twilio for automated calls and messaging service, pusher for sending real-time customer status update
• Followed TDD (Test driven development) through out software lifecycle
• Demo video : https://www.youtube.com/watch?v=SuORW3Q_5yc

Feb 2014 – Aug 2020 · 6 yrs 6 mos · Greater Boston Area

• I was responsible for designing, developing and testing high quality software to enhance storage performance by specifically tuning deduplication engine.
• External Snapshot Pool management (ESP):
• Responsible for leading and architecting Actifio's External Snapshot Pool management solution supporting various storage array platforms like IBM storewise, Pure (all flash storage), Dell Unity storage array(Unity and powerMax), GCP(experimentation).
• ESP enabled customers manage full life cycle of snapshots with the above mentioned storage arrays.
• Implemented incremental snapshot capabilities by keeping track of changed blocks between snapshots.
• As part of the implementation we supported both ISCSI and fibre channel communication to external
• array
• Actifio's Deduplication job scheduler :
• Redesigned user space Job scheduler for Actifio's deduplication engine by implementing runqueue
• New Scheduler enabled very high priority jobs to run without interruption by other jobs while changing the priorities in realtime
• It also enabled to assign very low priority to jobs to do lazy run, thereby enabling higher priority jobs to complete faster without being robbed of CPU cycles from lower priority jobs
• Actifio's Garbage collection engine:
• Significantly reduced time taken for Garbage collection to Actifio's deduplication store by almost half by fine tuning Mark and sweep algorithm along with multi threading and using other effective caching mechanisms.
• Actifio's Deduplication engine:
• worked extensively on Actifio's core deduplication engine modules like Indexing , Garbage collection
• fine tuned various dedup index caching algorithms to flush out dirty leaf pages efficiently to disk without blocking I/O to index cache.
• Significantly Improved data ingest performance by using techniques like hash bucketization, effective caching, parallelization, effective read/write sequences to underlying disks.

Jan 2013 – Aug 2013 · 7 mos · Greater Pittsburgh Area

• I was part of the team responsible for developing a generalized framework for project related to Internet of things.

Jul 2010 – May 2012 · 1 yr 10 mos · Bengaluru Area, India

• I was part of the Sirius F/W assets team for inkjet Printers.
• I was actively involved in development and enhancements of Firmware Assets (stack) for next generation stand alone inkjet printers.
• Worked with system designed using Meta-architecture.
• Areas of specialization include Page Description Language decoders (PCL, PDF).
• I have worked on image decoding algorithms for next generation inkjet printers which required implementation of swath based rendering of TIFF T.6 decoder which achieves a compression ratio of 15:1 when compared to its predecessor TIFF T.4 (4:1).
• I was part of the storage team which was responsible for writing storage drivers for next generation inkjet printers, checking filesystem compatibility(EXT4 , EXT3) for SD cards and data corruption issues in SD cards.
• Actively enhanced quality of firmware code and was awarded HP E- award for the same.