Manjeet Dhayal Core Infrastructure Engineer @ Oracle | Bengaluru, India manjeetdhayal786@gmail.com | https://manjeetdhayal.netlify.app/ https://www.linkedin.com/in/manjeet-dhayal | https://github.com/manjeetdhayal ======================================================================== SUMMARY Backend, infrastructure and AI/RAG engineer at Oracle Cloud Infrastructure. I build Java and Dropwizard services and distributed systems at enterprise scale, ship LLM/RAG systems that hold up in production, and founded GetQi, a B2B2C corporate wellness platform. Open to: Backend Engineer, Platform / Infrastructure Engineer, Distributed Systems Engineer, AI / LLM Systems Engineer, Founding Engineer HIGHLIGHTS * Cut a hot API path from 60s to sub-second (~98% faster) by tuning JDBC connection-pool configuration and replacing a full table scan with a denormalized table. * Built Ace, an AI on-call RCA system using Retrieval-Augmented Generation over Slack history (~90%+ root-cause accuracy), then extended it to open auto-remediation pull requests. * Ships production Java/Dropwizard backend services for Oracle Cloud Infrastructure supporting enterprise-scale distributed systems. * Founder of GetQi: architected a B2B2C wellness platform end to end — Java/Spring Boot backend, Next.js and Flutter clients, Razorpay payments, dual-wallet, QR-based access control. SKILLS Core: Java, Dropwizard, Spring Boot, REST APIs, JDBC, SQL, NoSQL, Oracle Cloud Infrastructure (OCI), Distributed Systems, Backend Development, Retrieval-Augmented Generation (RAG), LLM Integration, React, TypeScript Working knowledge: Docker, Node.js, Express, Next.js, PostgreSQL, MySQL, MongoDB, Microservices, Event-Driven Architecture, Kubernetes (OKE), Helm, GraalVM, Flutter, Prompt Engineering, Tool Calling, MCP, Agentic AI, JWT / Auth, System Design, CI/CD Familiar: Terraform, Infrastructure as Code, Firebase, Redux, Dart, C/C++, Razorpay, Agora SDK EXPERIENCE Core Infrastructure Engineer 1, Oracle (May 2026 – Present) — Bengaluru - Reduced API latency from 60s to sub-second (600ms - 1s), a ~98% improvement, by tuning JDBC connection pool configuration and introducing a denormalized table to eliminate a full table scan on a heavy DB query. Member of Technical Staff, Oracle (Jul 2024 – May 2026) — Bengaluru - Built and scaled high-performance backend services for Oracle Cloud Infrastructure using Java and Dropwizard, supporting enterprise-scale distributed systems. - Designed and built an AI-powered on-call RCA system (Project Ace) at the OCI Platform Hackathon, leveraging Retrieval-Augmented Generation (RAG) over historical Slack conversations; integrated Slack Search APIs with an AI model to generate context-aware RCA insights and actionable resolution steps, achieving ~90%+ accuracy in identifying root causes. - Extended Ace with automated remediation workflows - including auto-generated pull requests for common fixes (e.g., vulnerability patches) - reducing incident resolution cycles and improving developer productivity. - Designed resilient distributed systems and optimized data access layers (SQL/NoSQL), improving performance and enabling scalable resource management for growing customer demand. - Developed internal and customer-facing applications using React and TypeScript, working within complex internal frameworks and secure access patterns. - Implemented dynamic workflow-driven systems to handle custom operational requests, enabling flexible, configuration-based processes without code changes. Server Technology Intern, Oracle (May 2023 – Jul 2023) — Bengaluru - Developed runtime environment image for Oracle GraalVM to provide users with native image support. - Implemented automated integration of images into the FDK release pipeline, ensuring seamless updates with every major release of fn-fdk and GraalVM. - Collaborated with the GraalVM team to address architecture-related challenges in generated images. Founder & Software Engineer (Side Project), GetQi (Mar 2026 – Present) — Remote - Building Getqi as a part-time SaaS venture alongside my role at Oracle. - Founded and architected Getqi, a B2B2C health and wellness platform connecting enterprises, fitness facilities, personal trainers, and consumers through memberships, passes, and QR-based check-ins. - Designed and developed a scalable backend using Java, Spring Boot, PostgreSQL, JWT authentication, and REST APIs, serving both web and mobile applications. - Built responsive web and mobile applications using Next.js, TypeScript, and Flutter, implementing secure role-based access control, real-time workflows, and seamless user experiences. - Implemented production-grade features including Razorpay payment integration, dual-wallet architecture, scheduled background jobs, QR-based access control, and secure transaction processing. Front End Development Intern, AulaCube Technologies Private Limited (Dec 2023 – Feb 2024) — Remote React JS Intern, Brick&Bolt (Jun 2022 – Aug 2022) — Remote - Worked on customer app frontend development to enhance the user experience. React Tech Intern, MeMeraki (Feb 2022 – Jun 2022) — Remote - Optimized website to enhance user experience based on user feedback. Rebuilt masterclass purchase section from scratch to give users a seamless buying experience. PROJECTS GetQi — A B2B2C health and wellness platform connecting enterprises, fitness facilities, personal trainers, and consumers through memberships, passes, and QR-based check-ins. Production features include Razorpay payment integration, dual-wallet architecture, scheduled background jobs, QR-based access control, and secure transaction processing. [Java, Spring Boot, PostgreSQL, Next.js, Flutter] Ace — AI On-Call RCA — An AI-powered on-call RCA system built at the OCI Platform Hackathon, leveraging Retrieval-Augmented Generation over historical Slack conversations to generate context-aware RCA insights and actionable resolution steps, achieving ~90%+ accuracy in identifying root causes. [RAG, LLM, Slack API, Java] Heart Rate Monitoring and Virtual Support App — A heart rate monitoring app using a stethoscope with custom amplifier; performs signal denoising and quality assessment, then classifies using a tflite model (85% accuracy) to detect abnormal heart rate. Routes users to a Doctor Consultation Dashboard with real-time video conferencing via Agora SDK. [Flutter, Dart, tflite, Agora SDK, Firebase] Anmol Career — Career coaching platform where users can login, browse and enrol in courses. Admin dashboard for managing courses, materials, users, and CRUD operations. [React, Node.js, MongoDB] ShopIt — Full-featured e-commerce app — buy, review, rate, and comment on products. Admin panel handles orders, inventory, users, and review moderation. [React, Redux, Express] LetMeHandle — Team task management app. Assign tasks to members, track progress, and manage project work — built for real team-level collaboration. [React, Firebase] EDUCATION National Institute of Technology Rourkela — Computer Science and Engineering, B.Tech (Nov 2020 – Jun 2024) — CGPA 8.73/10, Years 2020–24 Pilani Public School, Pilani — Senior Secondary Education (2016 – 2019) CERTIFICATIONS Oracle Certified Professional: Java SE 21 Developer — Oracle (Aug 2026)