# Sathish Srinivasan > Sr Staff SWE | OCI | Ex - PayPal Location: Fremont, California, United States Profile: https://flows.cv/sathish As a Senior Staff Engineer with over 15 years of experience designing, developing, and scaling distributed systems, with a strong focus on data platforms and metadata management. My expertise encompasses various aspects, including: As a key member of the teams that ๐—ถ๐—ป๐—ถ๐˜๐—ถ๐—ฎ๐˜๐—ฒ๐—ฑ ๐—ฑ๐—ฎ๐˜๐—ฎ ๐—ฐ๐—ฎ๐˜๐—ฎ๐—น๐—ผ๐—ด ๐—ฝ๐—ฟ๐—ผ๐—ท๐—ฒ๐—ฐ๐˜๐˜€ ๐—ฎ๐˜ ๐—ฃ๐—ฎ๐˜†๐—ฃ๐—ฎ๐—น ๐—ฎ๐—ป๐—ฑ ๐—ข๐—ฟ๐—ฎ๐—ฐ๐—น๐—ฒ, I contributed to the development of cutting-edge systems that are now integral to enterprise data governance, data processing and analytics. ๐— ๐—Ÿ & ๐—–๐—น๐—ผ๐˜‚๐—ฑ ๐—ฃ๐—น๐—ฎ๐˜๐—ณ๐—ผ๐—ฟ๐—บ๐˜€: Expertise in OCI and GCP for deploying, configuring, and automating large-scale systems. Proficient in building and optimizing ML pipelinesโ€”covering data preprocessing, feature engineering, model training, deployment, and monitoring. Skilled in integrating ML workflows with cloud-native services for scalable, real-time predictions and personalized recommendations. ๐——๐—ฎ๐˜๐—ฎ ๐—ฃ๐—ฟ๐—ผ๐—ฐ๐—ฒ๐˜€๐˜€๐—ถ๐—ป๐—ด ๐—ฃ๐—ถ๐—ฝ๐—ฒ๐—น๐—ถ๐—ป๐—ฒ๐˜€: Expertise in implementing data ingestion, cleansing, transformation, and analytical pipelines using technologies like Apache Spark, Hadoop, and various cloud-based platforms. ๐—ฃ๐—ฒ๐—ฟ๐—ณ๐—ผ๐—ฟ๐—บ๐—ฎ๐—ป๐—ฐ๐—ฒ ๐—ข๐—ฝ๐˜๐—ถ๐—บ๐—ถ๐˜‡๐—ฎ๐˜๐—ถ๐—ผ๐—ป: Proficient in analyzing and optimizing system performance to achieve high throughput and low latency. ๐— ๐—ฒ๐—ป๐˜๐—ผ๐—ฟ๐˜€๐—ต๐—ถ๐—ฝ ๐—ฎ๐—ป๐—ฑ ๐—Ÿ๐—ฒ๐—ฎ๐—ฑ๐—ฒ๐—ฟ๐˜€๐—ต๐—ถ๐—ฝ: Strong background in guiding and mentoring junior engineers, fostering a collaborative and high-performing team environment. ## Work Experience ### Principal Software Engineer @ Oracle Jan 2021 โ€“ Present | San Francisco Bay Area https://www.oracle.com/integration/data-integration https://www.oracle.com/big-data/data-catalog/ https://www.oracle.com/big-data/data-flow/ ๏‚ง Spearheaded the development of a highly scalable feature store to manage the creation, storage, and serving of features, ensuring efficient data processing for both offline model training and real-time online predictions. Implemented on-demand Milvus, an open-source vector database, to store and index embedding vectors for high-performance similarity search. This integration enabled personalized item recommendations based on user queries, significantly enhancing the recommendation system's overall performance and scalability ### Member Of Technical Staff 2 @ PayPal Jan 2018 โ€“ Jan 2021 | San Francisco Bay Area ๐—˜๐˜…๐—ฝ๐—ฒ๐—ฟ๐—ถ๐—บ๐—ฒ๐—ป๐˜๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐—ฃ๐—น๐—ฎ๐˜๐—ณ๐—ผ๐—ฟ๐—บ: Designed and implemented a high-performance platform handling over 3 billion API requests daily. It delivers real-time insights with a 95th percentile execution time of 3 milliseconds, enabling rapid iteration and optimization. Features include user segment and cluster creation for targeted experimentation, enhancing performance across diverse user groups. This platform fosters collaboration with transparent, actionable data. Contributed to DRUID by adding a parquet extension, a P-Value aggregator, and fixing bugs. ๐—š๐—ถ๐—บ๐—ฒ๐—น ๐——๐—ฎ๐˜๐—ฎ ๐—”๐—ฃ๐—œ: As a core engineer, developed and deployed GIMEL, an Apache Spark-based big data framework. GIMEL provides an efficient abstraction layer for data access across storage systems and integrates with Jupyter notebooks for interactive exploration. My contributions, including the GIMEL Thrift server, enable robust, secure data access and streamline the data science workflow through rapid prototyping and visualization. ๐—จ๐—ป๐—ถ๐—ณ๐—ถ๐—ฒ๐—ฑ ๐——๐—ฎ๐˜๐—ฎ ๐—–๐—ฎ๐˜๐—ฎ๐—น๐—ผ๐—ด: Developed PayPalโ€™s Unified Data Catalog, a metadata system for governing data and AI assets across files, tables, models, and dashboards in both on-premises and cloud environments. As a founding engineer, I was crucial in designing and implementing this comprehensive system. ๐—ก๐—ฒ๐˜…๐˜๐—š๐—ฒ๐—ป ๐——๐—ฎ๐˜๐—ฎ ๐— ๐—ผ๐˜ƒ๐—ฒ๐—บ๐—ฒ๐—ป๐˜ ๐—ฃ๐—น๐—ฎ๐˜๐—ณ๐—ผ๐—ฟ๐—บ: Designed a scalable, autonomous data movement platform with schema registry and automated TSDB monitoring. Technologies used include Apache Gobblin, Airflow, Aerospike, Oracle, and Spark. ๐—™๐—ถ๐—ฟ๐˜€๐˜ ๐—ฃ๐—ฎ๐—ฟ๐˜๐˜† ๐—ง๐—ฟ๐—ฎ๐—ฐ๐—ธ๐—ถ๐—ป๐—ด ๐—œ๐—ป๐—ณ๐—ฟ๐—ฎ๐˜€๐˜๐—ฟ๐˜‚๐—ฐ๐˜๐˜‚๐—ฟ๐—ฒ (๐—™๐—ฃ๐—ง๐—œ): Led the development of an internal client and server-side event tracking platform. This platform includes APIs and libraries for efficient data capture, processing, and real-time report generation. It is essential for tracking web traffic and KPIs for various PayPal products and marketing campaigns. ### Member of Technical Staff 1 @ PayPal Jan 2015 โ€“ Jan 2018 ### Senior Software Engineer @ PayPal Jan 2013 โ€“ Jan 2015 ### Development Engineer @ Pramati Technologies Jan 2012 โ€“ Jan 2013 Involved in end to end development of a Data Warehousing product from the scratch for a leading DW company ### Senior Software Engineer @ Mindtree Ltd Jan 2010 โ€“ Jan 2012 โ€ข Involved in complete implementation of a Reservation Engine for a leading US airline from requirements gathering to UAT sign off. โ€ข Implemented most of the core business logics for the reservation system including flight & product availability, fare selection, booking and discount selection. โ€ข Created a service to provide appropriate flight fare based on several fare selection logics. Optimized service performance via caching. โ€ข Added a JMX based monitor for all the services, which would help in viewing the Request/Response, finding response time and several other stats from JMX client for a specific transaction identifier. โ€ข Framed requirements spec by analyzing the existing system and reverse engineering the legacy PHP code. Proposed necessary Suggestions and changes in the given XSD model to ensure best fit criteria. โ€ข Analyzed the entire Flight discount scenario and implemented it without altering the existing flight fare selection logic with very minimal XSD changes. โ€ข Delivered all the services on time by maintaining good test coverage, followed the intended code conventions and incorporated design and coding principles. โ€ข Hands on experience in developing Android applications and integrating them with Amazon SimpleDB. ### Software Engineer, Intern @ Aniga Technologies Jan 2009 โ€“ Jan 2010 โ€ข Involved in the implementation of Web analytic solution for one of our clients using Piwik, an open source web analytic solution. โ€ข Developed a customizable dashboards for their analytics tool Piwik using open flash charts. โ€ข Created an Email framework which asynchronously sends email using Velocity templates. ## Education ### B.E in Electrical and Electronics Engineering Anna University Chennai ### Higher Secondary in Maths, Biology Nazareth Matric Hr Sec School ## Contact & Social - LinkedIn: https://linkedin.com/in/sathishsri --- Source: https://flows.cv/sathish JSON Resume: https://flows.cv/sathish/resume.json Last updated: 2026-04-12