I'm Sai Dhanush Kolla, a software engineer with 3.5+ years of experience designing and deploying scalable microservices and enterprise applications across financial services and healthcare.\n\nI specialize in backend development with Java/Spring Boot, RESTful APIs, Kafka-based event streams, and cloud-native deployments on AWS, Azure, and GCP. I also integrate AI/ML capabilities including RAG architectures and LLM-powered features into production systems, while maintaining a strong foundation in full-stack development, data optimization, and secure, compliant design.…

Sai Dhanush Kolla

I'm Sai Dhanush Kolla, a software engineer with 3.5+ years of experience designing and deploying scalable microservices and enterprise applications across financial services and healthcare.\n\nI specialize in backend development with Java/Spring Boot, RESTful APIs, Kafka-based event streams, and cloud-native deployments on AWS, Azure, and GCP. I also integrate AI/ML capabilities including RAG architectures and LLM-powered features into production systems, while maintaining a strong foundation in full-stack development, data optimization, and secure, compliant design.…

Available to hire

I’m Sai Dhanush Kolla, a software engineer with 3.5+ years of experience designing and deploying scalable microservices and enterprise applications across financial services and healthcare.\n\nI specialize in backend development with Java/Spring Boot, RESTful APIs, Kafka-based event streams, and cloud-native deployments on AWS, Azure, and GCP. I also integrate AI/ML capabilities including RAG architectures and LLM-powered features into production systems, while maintaining a strong foundation in full-stack development, data optimization, and secure, compliant design.

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Work Experience

Software Developer at American Express
May 1, 2024 - Present
Engineered a RAG-based financial advisory chatbot using LangChain, OpenAI GPT-4, and Pinecone vector DB, and built FastAPI services for ML inference alongside Spring Boot REST APIs with Kafka consumers to deliver personalized investment recommendations and query financial documents. Delivered scalable microservices for core banking operations on Spring Boot 3.x with Spring Data JPA, and implemented secure REST APIs using Spring Security and OAuth2 for PCI-DSS and regulatory compliance. Deployed containerized applications to Azure Kubernetes Service (AKS) with Docker and Helm, and built interactive dashboards in Tableau for executives.
Software Developer at HCL Technologies
January 1, 2022 - July 1, 2023
Designed and built RESTful APIs with Spring Boot and Spring Data JPA to support EHR integration across hospital systems, implementing Redis caching and indexing for optimized patient data retrieval. Developed FHIR-compliant APIs and HL7 messaging workflows; built scalable microservices with Spring WebFlux and MongoDB. Engineered a Retrieval-Augmented Generation (RAG) system with FAISS and Weaviate for AI-driven clinical decision support. Implemented real-time data pipelines with Apache NiFi and PostgreSQL, and event-driven alerting with RabbitMQ and Apache Camel. Deployed containerized apps on GCP (Cloud Run, GKE); created Tableau dashboards; ensured HIPAA and ICD-10 compliance; conducted thorough testing with TestNG and Mockito.

Education

Master's in Computer Science at Indiana University Bloomington
January 11, 2030 - December 16, 2025
Master of Technology in Software Engineering at Vellore Institute of Technology, Amaravati
January 11, 2030 - December 16, 2025

Qualifications

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