Sanjay Das

sanjay@sanjaydas.com | 732-443-0838

Long Branch, NJ, USA | US Citizen

Blog | LinkedIn | Github | Stackoverflow | Download

Dedicated and results-driven Engineer with over a decade of experience in architecting and implementing robust data platforms and solutions. Skilled in leading cross-functional teams to deliver high-quality results within deadlines. Adept at leveraging cutting-edge technologies to optimize data pipelines for scalability, performance, and reliability.

Education: M. Sc (Tech) Computer Science, First Class

Birla Institute of Technology and Science (BITS), Pilani, India

Work Experience:

Director - Data Engineering

AdMarketplace, New York, NY
October 2020 - Present

• Lead the Data Platform team, overseeing the implementation of data platform architecture.

• Improve and optimize data pipelines for scalability, performance, and reliability.

• Design, build, and maintain core tools and Data products.

• Lead the migration from legacy Data Warehouse to modern Data Lake, Warehouse, and Data Mart.

• Develop proof-of-concept/reference implementations for components and pipelines.

• Mentor engineering teams and ensure the quality of delivery.

Consultant

Cigna/CVS-Health, New York, NY (Remote)
October 2019 - September 2020

• Developed, deployed, and monitored a Big Data platform for internal/external access to Med/Rx Claims.

• Handled high-volume data transactions and resolved throughput/latency issues.

• Provided mentorship to junior engineers and conducted code reviews.

Architect/Principal Software Engineer

ETrade, New Jersey/New York
April 2017 - October 2019

• Engineered a Big Data platform for internal/external access to various data sets.

• Managed near-live market data and ingested event streams from external vendors.

• Developed Java Kafka-KStream modules and provided mentorship to junior engineers.

Consultant/Architect/Software Engineer

June 2014 - January 2017, New Jersey/New York

• Designed and developed solutions for the ingestion and processing of massive batch data for CitiBank.

• Managed and maintained consumer-facing Android/iOS apps and responsive web front-end for esPronto.

Additional Experience:

• Software Architect/Software Engineer: Symphony (Institutional Brokerage), New Jersey/India

• Consultant: Citi Bank, Archeus Capital (Hedgefund), New York, NY

• Lead Developer: Morgan Stanley, New York, NY

• Senior Technologist: Wit SoundView (Start-up Broker), New York, NY

• Consultant: Goldman Sachs, Princeton, NJ

Skills:

• Programming Languages: Java, Scala, Python, C++

• Big Data Technologies: Spark, Kafka, Hadoop, Hive, Impala, Databricks

• Cloud Platforms: AWS

• Tools/Frameworks: Microservices, Airflow, ElasticSearch, Clickhouse, Kubernetes

• Databases: Oracle, Cassandra, MySQL, MongoDB

• Other: AdTech, FinTech, HealthTech, Generative AI (ML-Ops, LLM-Ops, RAGs)

Projects:

Generative AI Blog Series: LLM-Ops and RAGs

• Authored a comprehensive blog series exploring the world of Generative AI, focusing on LLM-Ops and RAGs techniques.