# Manjeet Dhayal
> Core Infrastructure Engineer @ Oracle. 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.

Location: Bengaluru, India
Open to: Backend Engineer, Platform / Infrastructure Engineer, Distributed Systems Engineer, AI / LLM Systems Engineer, Founding Engineer
Last updated: 2026-08-27

## What sets me apart

- 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

## Selected experience

### Core Infrastructure Engineer 1 — Oracle
May 2026 – Present · Bengaluru · Full-time
Stack: Java, Dropwizard, OCI, TypeScript, React, RAG
- 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 · Full-time
Stack: Java, Dropwizard, OCI, TypeScript, React, RAG
- Built and scaled high-performance backend services for Oracle Cloud Infrastructure using Java and Dropwizard, supporting enterprise-scale distributed systems.

### Server Technology Intern — Oracle
May 2023 – Jul 2023 · Bengaluru · Internship
Stack: Oracle Functions, Docker, GraalVM
- Developed runtime environment image for Oracle GraalVM to provide users with native image support.

### Founder & Software Engineer (Side Project) — GetQi
Mar 2026 – Present · Remote · Part-time
Stack: Java, Spring Boot, PostgreSQL, Next.js, TypeScript
- Building Getqi as a part-time SaaS venture alongside my role at Oracle.

### Front End Development Intern — AulaCube Technologies Private Limited
Dec 2023 – Feb 2024 · Remote · Internship
Stack: React, JavaScript

### React JS Intern — Brick&Bolt
Jun 2022 – Aug 2022 · Remote · Internship
Stack: React
- Worked on customer app frontend development to enhance the user experience.

### React Tech Intern — MeMeraki
Feb 2022 – Jun 2022 · Remote · Internship
Stack: React, Shopify
- 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.
Tech: 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.
Tech: 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.
Tech: 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.
Tech: React, Node.js, MongoDB
Live: https://www.anmolcareer.in

### ShopIt
Full-featured e-commerce app — buy, review, rate, and comment on products. Admin panel handles orders, inventory, users, and review moderation.
Tech: React, Redux, Express
Code: https://github.com/manjeetdhayal/shopit

### LetMeHandle
Team task management app. Assign tasks to members, track progress, and manage project work — built for real team-level collaboration.
Tech: React, Firebase
Code: https://github.com/manjeetdhayal/LetMeHandle

## 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)

## Links

- Website: https://manjeetdhayal.netlify.app/
- Email: manjeetdhayal786@gmail.com
- LinkedIn: https://www.linkedin.com/in/manjeet-dhayal
- GitHub: https://github.com/manjeetdhayal
- LeetCode: https://leetcode.com/manjeetdhayal
- YouTube: https://www.youtube.com/@thinkbeyondcoding
- X: https://twitter.com/coder_manjeet
- Résumé (JSON): https://manjeetdhayal.netlify.app/resume.json
- Résumé (text): https://manjeetdhayal.netlify.app/resume.txt

## For machines

- Structured data: JSON-LD (schema.org Person / ProfilePage) is embedded in the site homepage.
- Full resume as data: https://manjeetdhayal.netlify.app/resume.json (JSON Resume schema)
- Longer summary: https://manjeetdhayal.netlify.app/llms-full.txt