Rajeev Ranjan
Data scientist - AI - LLMs - ML
- Role
- Data Scientist at IBM
- Location
- Bengaluru, KA, IN
- LinkedIn followers
- 500 followers
About Rajeev Ranjan
Senior Data Scientist with 7+ years of ML, NLP, and LLM-driven automation experience, and…
Experience
Data Scientist
Jul 2021 — Present · Bengaluru, IN
At IBM\'s CISO organization, I led the design and development of a robust data pipeline that consolidated asset and security data from five disparate sources. This centralization initiative improved reporting efficiency and increased team productivity by 40%. I built scalable ETL workflows to transform and store data in Hive-partitioned formats, enabling high-performance queries.To support structured and version-controlled analytics, I implemented Apache Iceberg tables with Spark, ensuring schema evolution, time travel, and compliance with modern data governance practices. I developed both predictive and rule-based models that generated compliance reports on a daily, weekly, monthly, and annual basis—these reports helped the Security and Risk teams mitigate issues 25% faster through data-driven insights.Additionally, I designed and deployed RESTful APIs to give internal stakeholders seamless access to KPIs and security reports. I also managed application version control across microservices and production-ready data platforms. Performance tuning efforts led to a 90% improvement in report generation speed. Throughout the project, I collaborated with cross-functional teams to refine data requirements and mentored junior engineers through onboarding, code reviews, and technical sessions.
Education
Indira Gandhi National Open University
CIC, Computer Science
2007 — 2007
Indira Gandhi National Open University
Master of Computer Applications (MCA), Computer Science
2008 — 2011
Bihar Intermediate Education Council Patna
10+2, Mathematics
2000 — 2002
Babasaheb Bhimrao Ambedkar Bihar University
Graduation, Mathematics
2002 — 2006
Skills
- Wcf
- Mysql
- Wordpress
- Databases
- Microsoft Sql Server
- Web Development
- Web Services
- Xml
- Jquery
- Cakephp
- Web Applications
- Php
- C#
- Oop
- Html
- Crystal Reports
- Ajax
- Software Development
- Css
- Sql
- Javascript
- Asp.net
- Phpmyadmin
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