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Sopan NikamSN
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Sopan Nikam

@sopannikam

Java Backend Developer at Tata Consultancy Services who developed banking microservices and built the CogniStream AI document chat platform.

India
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At Tata Consultancy Services (TCS), I developed and maintained Java and Spring Boot microservices for a large-scale banking enterprise application, supporting core transaction-processing workflows.

I designed RESTful APIs for integration with dependent systems and optimized PostgreSQL queries for backend data retrieval. I also diagnosed application defects through debugging, testing, and root-cause analysis.

I built CogniStream AI, a document chat platform that uses Spring AI and Retrieval-Augmented Generation to answer queries about PDFs, documents, and web content. I implemented document ingestion, vector embeddings, and semantic search with PostgreSQL and pgvector.

I added conversational memory and structured response handling for multi-turn queries, and designed secure APIs with Spring Security. I hold a B.Sc. in Information Technology and a HackerRank Software Engineer Certification.

Experience

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Education

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MU

Mahatma Gandhi Mission University

Bachelor of Science, Information Technology

2021 - 2024

Grade: 8.40 CGPA

Bachelor of Science in Information Technology with a CGPA of 8.40, completed from 2021 to 2024.

HA

HackerRank

Software Engineer Certification, Software Engineering

Earned the HackerRank Software Engineer Certification.

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