-Leading and building a team for a crypto analytics platform (first POC with bitcoin and ethereum)-Built the team from scratch to a size of 5 in less than a year-Instrumental in architecting and writing code for a crypto analytics platform (golang/java OSS)-Architected and developed the data ingestion pipeline and the time-series data and visualization layer(postgres, influx, graphana)-Wrote a BTC block parser (Rust)-Built a rapid experimentation model pipeline using ONXX/pytorch and integrated with a Spark based data intelligence framework-Cross-functional collaboration with DDN block-storage team-Built a novel Sentiment Analysis tool for crypto price prediction in python (twitter/textblob/vader)-Golang/Rust/grpc/ Kafka/Postgres/Influx/Graphana/Spark

-Big-data based analytics of blockchain transactions to help financial institutions and crypto-exchanges detect rogue players-Kafka, Cassandra, YugabyteDB-TRISA Blockchain Hackathon winner (https://ciphertrace.com/travel-rule-conference)-Built a libp2p based test p2p network to test consensus (Rust, kad, actix, swarm etc.)-Re-architecture and re-factoring of ingestion pipeline (Kafka, Cassandra)

-OTT/FEP Digital Video Buying Platform-Grew and managed the engineering team-ML-based predictive analytics pipeline-Architect, design and develop DSP bidding platform (C++/golang, OpenRTB)-Architect, design and develop audience-analytics and reporting platform (Java/Hadoop/noSQL)-Drive new products in bid optimization, audience targeting and analytics.

Prototyped a blockchain (ERC20) based home access-control project using smart-locks and Pihttps://www.youtube.com/watch?v=OXCuiZVJoUU&feature=youtu.be

-Big-data analytics at scale-Architected the redesign of data storage model from RDBMS to NOSQL and from monolithic to micro-services based-Design and development of streaming pipelines for data collection (Kafka, Websockets)-Lead architecture efforts in marketing cloud unification (Bluekai, Maxymiser)-Java (Spring, spring boot), C# (.NET), MS SQL Server, OracleDB (12C), Kafka, Apache Drill

* Designed and developed a novel real-time system using sharing-activity streams for contextual targeting of users in online ad-campaigns (patent pending)* The product (Real time marketing) has been positioned as #1 priority product for the company after achieving up to 10X performance improvement in CTR.

* Designed and developed a novel content classification system for online ad-targeting using search engine results (Patent pending)* Campaign analytics design and development (Java, Hadoop)* Behavioral targeting -- Design and development of recency based ad-targeting using user profiling (Java, Hadoop, Cassandra, Redis) -- Ad-optimization (Patent pending)

Hands on experience in large-scale distributed system development using both traditional client-server architecture and open-source technologies* Involved in the design and development of a real-time user analytics framework for ask.com direct and community users; (C++/Apache)* Involved in the design and development of a in-memory key-value store for storing user specific data* Currently working on integrating the system with no-sql database (Cassandra)* Developed a data-management framework using Hadoop to optimize content delivery based on user-profile analysis. Hands on experiences in Map/Reduce system development and Hadoop programming.* Feature addition and maintenance of a real-time recommendation system based on user queries (C++, Apache)* Research and development of search optimization and monetization models and tools using Machine Learning and statistical techniques.

* Worked on the preliminary design and development of a Semantic file System for a Content Addressable Block Storage (dedup storage)* Researched on efficient meta-data update algorithms

• Researched issues related to seamless data management for storage devices.• Designed and implemented an application programming interface for the Universal Plug-n-play communication library (open source linux, libupnp, C) to enable storage devices to talk to each other.• Integrated the API with a data-management application (multi-threaded,OOD) to enable cross-platform data transfer and synchronization between storage devices (NSLU2 slug, MSS etc.)

Security and Privacy in Distributed Systems; emphasis on n/w security and anonymity; P2P anonymity (DHT based systems), cryptographyPublications:1. Souvik Ray and Sami Iren. A Survey of Technologies and Standards for Seamless Data. Technical Report, Seagate Research, Sep. 2007.2. Souvik Ray and Zhao Zhang. An Information-Theoretic Framework for Analyzing Leak of Privacy in Distributed Hash Tables. Seventh IEEE International Conference on Peer-to-Peer Computing (P2P), 2007.3. Souvik Ray, Giora Slutzki and Zhao Zhang. Incentive-Driven P2P Anonymity System: A Game-Theoretic Approach. 36th International Conference on Parallel Processing (ICPP), 2007.4. Souvik Ray and Zhao Zhang. SCUBE: A DoS Resistant Distributed Search Protocol. 16th International Conference on Computer Communications and Networks (ICCCN), 2007.5. Rohit Gupta, Souvik Ray, Arun K. Somani, Zhao Zhang: Utilizing node's selfishness for providing complete anonymity in peer-to-peer based grids. Multiagent and Grid Systems Journal, 2006.6. Souvik Ray and Zhao Zhang. An Efficient Anonymity Protocol for Grid Computing. IEEE/ACM International Conference on Grid Computing (GRID), Pittsburgh, Nov. 2004.7. Souvik Ray and Zhao Zhang. Heuristic-based Scheduling to Maximize Throughput of Data-Intensive Grid Applications (ICDCN), Calcutta, India, Dec. 2004.