Jun 2024 – Jun 2025 · 1 yr · On-site

• Part of the Brick Data Store (BDS) infrastructure team, developing and maintaining a schema-driven, embedded, in-memory database optimized for distributed networking systems and microservices.
• BDS Scheduler
• Designed and implemented Completely Fair Scheduling job infrastructure
• Implemented single-shot and periodic timers with O(1) addition and deletion
• Integrated BDS timer and job scheduler with the libuv event loop
• Libuv Integration
• Integrated RBFS stack with open-source libuv for asynchronous I/O and event loop
• Developed a new transport layer over AF_UNIX domain socket for BDS Pub/Sub between microservices
• Shared Memory
• Revamped Pub/Sub over shared memory to stabilize BDS table sync at high scale
• Redesigned microservice peer restart handling for shared memory cleanup
• Improved debugability by adding statistics
• CPU and Memory Optimisation
• Optimized BDS to use ~94% fewer CPU cycles in the stable state
• Achieved ~58% improvement in RAM usage by RBFS LXC container on bootup
• Achieved ~70% improvement in virtual and RSS memory usage of microservices
• Optimized time series metrics processing by ~12x to support high scale
• Identified key optimization areas by using Valgrind/Callgrind and Linux process statistics
• HTTP Server
• Integrated RBFS stack with libh2o for HTTP/1.1 and HTTP/2.0
• Created an HTTP infra layer for method validation, authorization, and pre-processing
• Created URL registration infrastructure to simplify adding new endpoints for RBFS
• Implemented resource filtering on the BDS database over HTTP
• Migrated old REST endpoints for CRUD operation on RBFS resources
• Secure Management Plane
• Took ownership of secure management plane development and maintenance
• Implemented Local and Remote user login and CLI execution authentication
• Redesigned Role-Based Access Control permission resolution for RBFS resources

Oct 2019 – Jun 2024 · 4 yrs 8 mos · On-site

• RBFS Licensing
• Designed and implemented software licensing using asymmetric encryption
• Supported license generation, multiple license installations via configuration, alerts & log messages on expiry
• BGP Route Leak
• Implemented inter-instance route leaking for BGP protocol
• Added support for installing default route in FIB for packet forwarding
• CLIXON Integration
• Integrated RBFS with Clixon for command line interface (CLI) support
• Implemented data encryption for Clixon XML database for secure nodes
• Dynamic Service Launch
• Designed and implemented configuration-based autoscaling for RBFS microservices
• Logging Library
• Developed a library providing fast in-memory and file-logging capabilities
• Supported hierarchical configuration, rate limiting, external plugin configuration
• Integrated with Graylog server for external log export
• Added log table trimming, rendering, filtering, and automated log ID documentation
• Built test infrastructure to create mock logs for testing
• Dockerization of RBFS
• Dockerized RBFS LXC container for cloud deployment

Jul 2016 – Oct 2019 · 3 yrs 3 mos · Bangalore

• Routing Infrastructure Team: Part of a team which handles all kernel interactions, memory management, scheduling, route resolution and all common protocol data structures like routes, next-hops, interfaces, etc. for routing protocol daemon (RPD).
• Projects:
• Parallel Processing of Route Information database (RIB):
• As part of this project BGP RIB were sharded amongst multiple threads so that each chunk of RIB could be processed parallelly to enhance the BGP convergence.
• ▪ Designed and implemented infrastructure to support CLI of sharding route database
• ▪ Enhanced configuration parsing infrastructure to support multithreaded configuration parsing
• Telemetry: Implemented telemetry data collection for Routing Protocol Daemon (RPD)
• Kernel Mock Library: Developed a library to mock kernel response in all cases for white box testing of RPD
• ATF: Wrote test cases in Automated Testing Framework (ATF) to test RPD next hops

May 2015 – Jul 2015 · 2 mos · Pune Area, India

• ▪ VisionWorks SDK is a library of Computer Vision optimized for NVIDIA platforms.
• ▪ Optimized VisionWorks SDK to utilize NVIDIA’s hardware video decoder using CUDA
• ▪ Performance improvement of 2x - 140x for videos ranging from 176x144 - 4kx4k*
• ▪ Achieved approx. 3x improvement in CPU utilization from 75% to 26%*
• Measured against OpenCV’s CPU based video decode API

Dec 2014 – Dec 2014 · 0 mo · Mumbai Area, India

• ▪ Designed a Solar Tilt Sensor to orient the solar panel towards sun to maximise energy
• ▪ Maximized energy by intelligent sunlight detection using Arduino with sensors*
• ▪ Prototyped Solar Temperature Controller to control the temperature of solar panel
• LDR, RS485, RS-232

Sep 2013 – Dec 2013 · 3 mos · IIT Bombay

• ▪ Represented IIT Bombay at International Underwater Robotics Competition California
• ▪ AUV localizes itself and performs realistic missions based on feedback from sensors*
• ▪ Used Robot OS to control a robot with distributed machines connected over WIFI
• visual, inertial, acoustic and depth sensors