Sai Phanidhar

I’m a Software Engineer with 2.6 years of experience building scalable SaaS products using Java, Spring Boot, and cloud-native technologies. I focus on high-performance systems through microservices, REST APIs, and CI/CD pipelines.

At Subex Limited, I upgraded 40+ microservices from Java 8 to Java 21—refactoring dependencies while preserving backward compatibility. I also optimized backend mapping algorithms to reduce data processing time by 50% for real-time workflows, and resolved 60+ critical production bugs across microservices and pipelines.

I’ve strengthened observability and operations by implementing centralized logging and monitoring with Elasticsearch and Fluentd across 40+ microservices, improving traceability and debugging efficiency. I’ve also designed timezone-aware handling for consistent cross-region processing, enhanced unit test coverage up to 80% using AI-assisted tooling, and containerized services with Docker and Kubernetes.

My work extends to AI-driven solutions: I built a Retrieval-Augmented Generation (RAG) system using LangChain and FAISS, leveraging HuggingFace embeddings and an LLaMA3 context layer, with an interactive Streamlit UI. I’m also developing an open-source browser-use AI agent with a Gradio-based web UI and multi-LLM integration, and I keep sharpening my skills through prompt design and Vertex AI–focused certifications.