Jul 2018 – Jul 2022 · 4 yrs · San Francisco Bay Area

• Tech Lead, Ads Funnel Performance tradeoffs
• Helping make experimentation analysis around latency/system metrics easier through better integration with ads A/B testing framework
• Identifying opportunities to improve funnel performance latency/save infrastructure costs
• Tech Lead, Data Sharding Solution
• Lead the design, planning and development efforts of a generic horizontal data sharding solution for
• services at Twitter working with multiple cross functional teams across various pillars. Blog link - https://blog.twitter.com/engineering/en_us/topics/infrastructure/2021/sharding-simplification-and-twitters-ads-serving-platform
• Worked with Core System Libraries to open-source some zookeeper serverset announcement logic and
• build foundational support into platform as part of the sharding effort.
• Ads Databus Team
• Designed and developed a solution to scale the delivery of Ads MySQL DB updates to read-side
• applications with a lambda based architecture using Kafka for streaming and HDFS for snapshots.
• Ads Ranking Service Team
• Founding engineer of the Ads Ranking Service team involved in design, prototyping and launch of a
• new micro-service split from the monolith Adserver for running late stage ads ranking funnel. Blog link - https://blog.twitter.com/engineering/en_us/topics/infrastructure/2020/building-twitters-ad-platform-architecture-for-the-future
• Performed various capacity planning and Java/Scala/JVM system optimizations to reduce
• infrastructure and hardware cost of launch for Ads Ranking service.
• Designed and Implemented a distributed cache layer for decayed ad engagement metrics moving from the older in-memory caching solution.
• Cross DC Spend replication
• Blog link - https://blog.twitter.com/engineering/en_us/topics/infrastructure/2020/how_we_fortified_twitters_real_time_ad_spend_architecture

May 2017 – Aug 2017 · 3 mos · San Francisco Bay Area

• AAA - Account Activity API Engineering Team
• Technologies Used - Scala, Ruby, Apache Mesos, Apache Aurora, EventBus, Finagle, Twitter Server, Finatra, Thrift, Wiley, Apache Zookeeper and Manhattan.
• AAA Delivers Twitter data like Tweets, DM's, Follows, Likes to customers who have subscriptions with us via Webhooks via a real time API to enable a rich developer ecosystem, for example, building AI chatbots.
• Improved end to end latency for delivering like events by reducing the number of EventBus hops in the AAA pipeline.
• Owned the design and implementation of scaling the AAA service before going into production
• Designed the delivery of new events - Blocks and Mutes via the AAA service.
• Moved the storage system from Manhattan(distributed key-value storage system) to MYSQL for storing webhook configurations and cached them in Manhattan for faster read performance.

Jun 2017 – May 2018 · 11 mos · New York, New York

• Graduate Teaching Assistant for "Operating Systems", "NET Web application development" and "Special Topics - Applied Internet Technology".

Jun 2013 – Jul 2016 · 3 yrs 1 mo

• Visual Studio Team – Delivery tools
• Architected and coded a backend deployment service to parse and run custom user scripts, returning useful logging and diagnostic data on dynamically provisioned cloud, on premise and hybrid environments. C#, Rest Services.
• The service deploys configuration as code using desired state configuration in a hybrid cloud computing environment on IaaS machines in Azure and on-premise windows client and server machines, and synchronize parallel configuration runs across machines and within the same machine.
• Implemented asymmetric encryption, tackled data re-transmission strategies, and increased fault tolerance between the server and client components. Improved reliability to 99.5% in stress runs.
• Redesigned the deployment service to deploy the client component dynamically to freshly provisioned machines in the cloud, over TCP. The component itself is a windows service which survives system restarts.
• Solved security threat utilizing asymmetric public-private key communication for all our IPC messaging between the server component and it's client machines.
• Worked on blades/experiences for frontend of Microsoft Azure portal Ibiza. Typescript, CSS, HTML5.
• Major contributor in GitHub for modular PowerShell scripting tasks which run on distributed server agents.

Apr 2012 – Jul 2012 · 3 mos

• Azure Applications Platform Team
• Implemented an Extensibility module to add custom transport protocols and integrated it into our cloud-based Integration service for enterprise applications.
• Utilized this Extensibility Module to add SFTP transport protocol apart from existing HTTP, FTP protocols.