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Purba MajumdarPM
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Purba Majumdar

@purbamajumdar

Senior Data Engineer at TekSystems for HSBC, engineering financial-crime pipelines and detection workflows across about 20 countries.

India
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At TekSystems, I engineer PySpark and Airflow pipelines for HSBC’s ART & FCR SOI financial-crime detection platform, processing transaction and account-activity data from about 20 countries. I also refresh ART dashboards and onboard new detection rules.

At LTIMindtree, I built Hadoop and Hive ingestion pipelines for HSBC’s Retail Data Model. I co-developed ReCast, an AI-powered BI migration platform using LangChain to interpret report logic and UI.Vision RPA to automate migration steps, reducing manual effort by about 60%.

At Tata Consultancy Services, I built an AWS S3 lakehouse with Glue and Airflow for the MARS healthcare analytics platform, delivering aggregated hospital and insurance data through Redshift. I also automated incremental ETL and developed a PySpark data-diff tool for QA validation.

Alongside my data engineering work, I built a self-directed AI chatbot and designed no-code agent workflows in Dify and Flowise AI. I use GitHub Copilot and Claude Code in data engineering workflows, and I'm exploring LLM applications in data quality and pipeline operations.

Experience

Work history, roles, and key accomplishments

TE
Current

Senior Data Engineer

TekSystems

Apr 2024 - Present (2 years 6 months)

Engineered transactional and account-activity pipelines in PySpark and Apache Airflow for HSBC's financial crime detection platform, processing data from ~20 countries. Owned monthly Airflow-orchestrated PySpark refreshes of ART dashboards and adopted GitHub Copilot to cut pipeline authoring time by ~30%.

LT

Senior Data Engineer

LTIMindtree

Nov 2021 - Mar 2024 (2 years 4 months)

Built Hadoop/Hive ingestion pipelines for HSBC Retail Data Model covering credit card, loan, and overdraft data, and co-developed ReCast, an AI-powered BI migration platform using Python, LangChain, and RPA, cutting manual migration effort by ~60%. Contributed to Snowflake data warehouse design and query optimization.

Education

Degrees, certifications, and relevant coursework

BW

Bengal College of Engineering & Technology for Women

Bachelor of Technology, Electronics and Communication Engineering

2012 - 2016

Grade: 8.68/10

Pursued a Bachelor of Technology in Electronics and Communication Engineering, achieving a DGPA of 8.68/10.

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