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Harshini Jonnala
Senior Backend Software Engineer specializing in distributed systems and cloud microservices
Hyderabad, IndiaSenior IT Associate2 years experienceSeniorTechnologyE-commerceCloud Computing
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About
Backend engineer with NTT Data experience building Java/Spring Boot services for product-data ingestion, including Kafka-based asynchronous pipelines and Redis read-through caching. Also built a personal RAG system deployed on Google Kubernetes Service using FastAPI, LangChain, and Pinecone with multi-tenant data isolation; holds a Master’s background in Machine Learning.
Experience
Senior IT AssociateNTT Data
Software Engineer 1Pragma Edge
Education
Santa Clara Universitymaster, Computer Science (2025)
Anurag Group of Institutionsbachelor, Computer Science (2020)
Key Strengths
- Designed and built internal REST APIs for product data ingestion (real-time and batch sync)
- Kafka-based async ingestion with parallel channel processing to increase throughput
- Race-condition prevention via hashing resource IDs to ensure consistent channel routing
- Database optimization through normalization and indexing (reduced query time from ~10s to ~1s)
- Built and deployed a RAG application on GKS using FastAPI + LangChain + Pinecone with separate ingestion and retrieval services
- Implemented multi-tenant isolation by propagating user ID end-to-end and using separate vector-store namespaces
- Implemented Redis read-through caching with TTL to improve API performance for frequently accessed resources
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