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Atul Raj

Senior Full Stack Engineer · Enterprise · Cloud · AI

Atul Raj

Senior Full Stack Engineer | React.js | Next.js | Node.js | Java | Python | AWS | AI

Enterprise application development, full-stack architecture, cloud engineering, and AI application integration for global product teams.

Career path

Software → Full Stack → Architecture

Focus

Enterprise & Cloud Applications

Evolution

AI-Enabled Business Systems

About

Engineering depth across the stack

Senior Full Stack Engineer with 10+ years of experience designing and delivering scalable enterprise applications. Career progression spans software engineering, full stack development, frontend architecture, cloud platforms, and AI-powered business applications.

  • 10+

    Years experience

  • Enterprise

    Application delivery

  • Full Stack + AI

    Engineering focus

I specialize in building maintainable frontend architectures, robust APIs, and cloud-backed systems—while collaborating with global product, design, and engineering teams to ship high-quality releases.

Capabilities

What I bring to enterprise product and engineering teams.

Architecture & Engineering

  • Frontend architecture
  • Full stack development
  • REST APIs
  • GraphQL
  • Microservices

Platform & Delivery

  • Authentication & authorization
  • RBAC
  • API integration
  • Cloud application development
  • Performance optimization

Leadership & Quality

  • Automated testing
  • CI/CD
  • Technical leadership
  • Mentoring
  • Agile development

Core technologies

Verified stack used across enterprise delivery.

Frontend

  • React.js
  • Next.js
  • TypeScript
  • JavaScript

Backend

  • Node.js
  • Express.js
  • NestJS
  • Python
  • FastAPI
  • Java
  • Spring Boot
  • GraphQL

Cloud & AI

  • AWS
  • Azure AI Services
  • Azure AI Document Intelligence

Data

  • PostgreSQL
  • MongoDB
  • Cosmos DB

Experience

A decade of progressive engineering ownership

Problem → Solution → Technology → Impact across enterprise delivery, architecture, and technical leadership.

  1. Senior Consultant

    Hitachi Vantara / Hitachi Digital Services

    Apr 2021 – Present

    Present
    • React.js
    • Next.js
    • TypeScript
    • Python
    • Azure AI
    • Microservices
    Problem
    Enterprise teams needed scalable, maintainable web platforms across multiple initiatives.
    Solution
    Led frontend architecture and full-stack delivery for business-critical applications.
    Impact
    Delivered reliable releases with reusable components and strong code quality.
    Problem
    Complex systems required consistent API integration and performance at scale.
    Solution
    Contributed to technical architecture, microservices integration, and API design.
    Impact
    Improved application performance and cross-team delivery velocity.
    Problem
    Growing delivery teams needed engineering standards and mentorship.
    Solution
    Drove code reviews, mentoring, and Agile delivery practices.
    Impact
    Raised engineering quality across global cross-functional programs.

  2. Software Engineer

    Revvsales Inc.

    Jun 2019 – Mar 2021

    • React.js
    • GraphQL
    • Java
    • Spring Boot
    • Jest
    • RTL
    Problem
    Document workflow product required robust full-stack feature delivery.
    Solution
    Built features with React.js, GraphQL, Java, and Spring Boot.
    Impact
    Shipped reliable product capabilities with strong testing culture.
    Problem
    Frontend quality needed systematic test coverage.
    Solution
    Improved reliability with Jest and React Testing Library.
    Impact
    Increased confidence in releases through automated testing.

  3. Software Engineer

    Indpro AB

    Jul 2017 – May 2019

    • React.js
    • JavaScript
    • REST APIs
    • Accessibility
    Problem
    Legacy interfaces needed modernization without disrupting delivery.
    Solution
    Developed responsive, accessible UIs and integrated REST APIs with component-driven architecture.
    Impact
    Improved usability and maintainability across product screens.

  4. Software Developer

    Argons Technology Pvt Ltd

    Dec 2015 – Jun 2017

    • HTML
    • CSS
    • Bootstrap
    • AngularJS
    • JSP
    Problem
    Early-career product screens required modular, performant UI foundations.
    Solution
    Delivered modular UI using HTML, CSS, Bootstrap, and AngularJS with JSP integration.
    Impact
    Improved frontend performance and UI maintainability.

AI Engineering

AI & Intelligent Applications

Integrating AI into enterprise workflows — with clear separation between verified production experience and applied AI engineering concepts.

Enterprise AI application flow

Conceptual AI application architecture. Document Intelligence reflects production experience; RAG and vector patterns represent applied engineering learning.

Production experience

Verified

Azure AI services used in enterprise application delivery.

  • Azure AI Foundry

    Enterprise AI platform for building and integrating intelligent application capabilities in production delivery.

  • Azure OpenAI Service

    LLM-powered features integrated with enterprise applications for productivity and decision support.

  • Azure AI Document Intelligence

    Intelligent document processing, structured data extraction, and workflow automation in business applications.

Applied learning & engineering

Conceptual

AI patterns actively explored for application architecture — not claimed as production delivery unless noted elsewhere.

  • LLM
  • RAG
  • Prompt Engineering
  • Embeddings
  • Vector Search
  • AI Agents
  • Intelligent document processing
  • Data extraction
  • Workflow automation
  • AI-assisted business applications

AI Document Intelligence & RAG Assistant

Coming soon — showcase structure

Placeholder for a future AI engineering project. This is not listed as completed delivery.

Next.js · Python · FastAPI · Azure OpenAI · RAG · Vector DB

  1. Document
  2. Extraction
  3. Chunking
  4. Embeddings
  5. Vector Search
  6. LLM
  7. Answer

Projects

Selected enterprise delivery

Production systems with clear ownership, engineering focus, and measurable outcomes.

AI-EnabledJul 2025 – Present

Enterprise Digital Transformation Initiatives

Hitachi Energy

Role: Senior Full Stack Engineer

Contributed to multiple enterprise digital transformation initiatives including ACE, Sustainability, Rebranding, and Cost Capability Center platforms.

Engineering focus

  • Architecture
  • AI
  • Cloud
  • Performance
  • Designed and developed scalable enterprise web applications using React.js, Next.js, JavaScript, and Python with reusable UI components and maintainable architecture.
  • Collaborated with global product owners, UX designers, backend engineers, and QA to deliver business-critical features.
  • Leveraged Azure AI Foundry, Azure OpenAI Service, and Azure AI Document Intelligence for intelligent document processing, data extraction, workflow automation, and AI-assisted business applications.
  • Integrated AI capabilities to improve operational efficiency, decision-making, and user productivity.
  • Contributed to performance, technical architecture, API integration, code quality, and Agile delivery.

Technology

  • React.js
  • Next.js
  • Python
  • Azure AI Foundry
  • Azure OpenAI
  • Document Intelligence

ClassMentor360 – School ERP & Learning Management Platform

ClassMentor360 — School ERP SaaS Platform

Role: Architect & Full Stack Engineer

Designed, developed, and deployed a scalable cloud-native School ERP and Learning Management Platform from scratch — covering architecture, development, testing, deployment, and production operations.

Engineering focus

  • Architecture
  • Multi-tenancy
  • Cloud
  • Security
  • Scalability
  • Designed the overall system architecture, database schema, APIs, and application workflows.
  • Developed a modern, responsive web application using Next.js (frontend) and NestJS (backend).
  • Built secure REST APIs with authentication, authorization, RBAC, and multi-tenant architecture.
  • Designed and optimized relational database structures using PostgreSQL on Amazon RDS.
  • Implemented student management, staff management, attendance, fee management, examinations, timetable, communication, and reporting modules.
  • Integrated email notifications with AWS SES; implemented CI/CD with GitHub Actions.
  • Deployed backend on AWS Elastic Beanstalk and frontend on AWS Amplify, with Dev / UAT / Production environments.
  • Configured custom domains, SSL, DNS routing, HTTPS, monitoring, logging, and auto-scaling for production traffic.
  • Followed industry practices for security, performance, maintainability, and cloud-native deployment.

Technology

  • Next.js
  • NestJS
  • TypeScript
  • PostgreSQL
  • AWS Elastic Beanstalk
  • AWS Amplify
  • Amazon RDS
  • AWS SES
  • GitHub Actions
  • REST APIs
  • CI/CD
  • Multi-tenancy

ALGO-DMS – Document Management & Collaborative Editing Platform

ALGO-DMS — Document Management SaaS Platform

Role: Full Stack Engineer

Designed, developed, and delivered a cloud-native Document Management System with real-time collaborative editing — covering architecture, frontend and backend development, security, storage, and production operations.

Engineering focus

  • Architecture
  • Real-time Collaboration
  • Cloud
  • Security
  • Scalability
  • Designed the system architecture, data models, APIs, and document lifecycle workflows (create, edit, share, publish, trash).
  • Built a modern React + TypeScript web app with a rich Lexical-based document editor and MUI UI.
  • Implemented secure REST APIs with JWT authentication, authorization, and role-based access control (RBAC).
  • Modeled and persisted application data with Amazon DynamoDB (TypeDORM) and PostgreSQL where needed.
  • Developed document overview, templates, collaborative editing, document history, sharing, publishing wizards, user management, and settings modules.
  • Integrated real-time collaboration with Yjs / WebSocket providers and image handling via AWS S3 + CloudFront.
  • Implemented email notifications (password reset / support flows) and image processing for document assets.
  • Deployed frontend and BFF services with PM2 for production process management across environments.
  • Followed practices for security, maintainability, observability (Winston logging), and cloud-native AWS deployment.

Technology

  • React
  • TypeScript
  • Lexical
  • Yjs
  • MUI
  • Node.js
  • Restify
  • Amazon DynamoDB
  • PostgreSQL
  • AWS S3
  • CloudFront
  • JWT
  • REST APIs
  • PM2
  • Sass

Crew Logistics Portal – Meet & Greet / Crew Transportation System

Carnival — Crew Logistics SaaS Platform

Role: Architect & Full Stack Engineer

Designed, developed, and deployed a scalable cloud-native Crew Logistics Portal for Carnival — covering architecture, development, testing, deployment, and production operations for crew travel, lodging, transportation, and meet & greet workflows.

Engineering focus

  • Architecture
  • Multi-vendor RBAC
  • Cloud
  • Security
  • Scalability
  • Designed the overall system architecture, DynamoDB single-table schema, REST APIs, and end-to-end crew logistics workflows.
  • Developed a modern, responsive web application using React (CRA) on the frontend and a Restify (TypeScript) BFF on the backend.
  • Built secure REST APIs with Cognito + Microsoft Entra ID authentication, authorization, RBAC/ABAC, and vendor-scoped access control.
  • Designed and optimized NoSQL data models using AWS DynamoDB (TypeDORM) for high-throughput crew transportation operations.
  • Implemented vendor management, service requests, hotel/transport/meet & greet operations, dashboards, invoicing, notifications, TM Hub integrations, and reporting modules.
  • Integrated Twilio (chat/voice) and Google Maps; implemented CI/CD with GitHub Actions.
  • Deployed backend on AWS EC2 with PM2 and frontend on Amazon S3 + CloudFront, with Dev / UAT / Production environments.
  • Configured custom domains, SSL, DNS routing, HTTPS, monitoring, logging, and production-ready scaling for live traffic.
  • Followed industry practices for security, performance, maintainability, and cloud-native deployment.

Technology

  • React
  • Restify
  • TypeScript
  • AWS DynamoDB
  • Amazon S3
  • CloudFront
  • AWS Cognito
  • Microsoft Entra ID
  • AWS EC2
  • PM2
  • Twilio
  • GitHub Actions
  • REST APIs
  • CI/CD
  • Multi-vendor RBAC

Elevate

JSSI — Aircraft Maintenance Support & Financing

Owned scalable frontend architecture for mission-critical maintenance and financing workflows.

Engineering focus

  • Architecture
  • Scalability
  • Performance
  • Architected and built Next.js frontend modules including Standard Cost and Workplan.
  • Implemented a three-level editable data grid and multi-step dynamic forms with Material UI.
  • Partnered with UX on interaction design, integrated APIs, and upheld code quality through reviews in Agile delivery.

Technology

  • Next.js
  • Material UI
  • API Integration
  • Frontend Architecture

PMMS Project

Nintendo of America

Delivered full stack features across React.js, Next.js, GraphQL, Java, and Spring Boot with a strong testing culture.

Engineering focus

  • Architecture
  • Performance
  • Quality Engineering
  • Built and optimized application features with React.js, Next.js, GraphQL, Material UI, Java, and Spring Boot.
  • Established comprehensive unit and integration testing with Jest and React Testing Library.
  • Reduced production issues by over 30% through comprehensive unit and integration testing.
  • Mentored engineers and contributed to performance optimization.

Technology

  • React.js
  • Next.js
  • GraphQL
  • Java
  • Spring Boot
  • Jest
  • RTL
Jun 2019 – Mar 2021

Revv

Revvsales Inc. — Document Management & eSignature Platform

revv.so

Built responsive UI for Revv, a global document automation and e-signature platform serving 10,000+ businesses worldwide. Revv was later acquired by LegalZoom to create modern product experiences and services for SMBs.

Engineering focus

  • Performance
  • Scalability
  • UI Architecture
  • Designed and developed highly responsive user interface components using React.js, translating wireframes into maintainable code.
  • Implemented key integrations including E-sign and Google Sheets for document workflow automation.
  • Replaced a third-party AG Grid implementation with a custom-built data grid to improve performance and flexibility.
  • Contributed to a platform focused on document workflows, eSignatures, and cross-system integrations for sales, operations, and legal teams.
  • Troubleshot and debugged interface issues to enhance application functionality and user experience.

Technology

  • React.js
  • E-Sign Integration
  • Google Sheets
  • Custom Data Grid
  • Document Automation
Jul 2017 – May 2019

Aayumed.com

Aayumed.com

Role: Frontend Developer

Contributed to frontend development of the Aayumed.com platform, improving usability and user engagement.

Engineering focus

  • Performance
  • UX
  • Frontend Delivery
  • Developed responsive, user-friendly interfaces using HTML, CSS, Bootstrap, AngularJS, and JSP integration.
  • Improved frontend performance and modular UI structure across product screens.
  • Achieved a verified 30% increase in user engagement through product and UX improvements.

Technology

  • HTML
  • CSS
  • Bootstrap
  • AngularJS
  • JSP
  • Responsive UI
Aug 2018 – May 2019

Lomah Web Application

Indpro AB

Computerized scoring system for rifles or pistols. A sensor at the target end of the range detects the passage of the projectile through a target and feeds back an X / Y coordinate to a video display screen at the shooting station.

Engineering focus

  • Real-time UI
  • Frontend Delivery
  • Built the web application UI for real-time scoring feedback from range sensors to the shooting station display.
  • Developed interactive frontend experiences using React.js and Redux.js for coordinate-driven scoring visualization.

Technology

  • React.js
  • Redux.js
Jul 2017 – Aug 2018

Fenix

Indpro AB

Built a product catalog module so product and service delivery can be managed and monitored through the application.

Engineering focus

  • UI Architecture
  • Frontend Delivery
  • Built a product catalog module to manage and monitor product and service delivery.
  • Developed user interface logic and behavior using React.js and JavaScript for a smooth, responsive experience.
  • Implemented application state management with Redux.js.

Technology

  • React.js
  • Redux.js
  • JavaScript

Skills

Technical toolkit

Organized by domain — production technologies and applied AI engineering concepts.

Frontend

  • React.js
  • Next.js
  • JavaScript
  • TypeScript
  • HTML
  • CSS
  • Material UI
  • Tailwind CSS
  • Redux.js
  • Lexical
  • Yjs
  • Sass

Backend

  • Node.js
  • Express.js
  • NestJS
  • Python
  • FastAPI
  • Java
  • Spring Boot
  • REST APIs
  • GraphQL
  • JWT
  • PM2

Databases

  • PostgreSQL
  • MongoDB
  • Cosmos DB
  • Amazon DynamoDB

Cloud & DevOps

  • AWS
  • Azure
  • EC2
  • S3
  • RDS
  • IAM
  • Route 53
  • Elastic Beanstalk
  • Amplify
  • SES
  • CloudFront
  • Cognito
  • GitHub Actions
  • CI/CD
  • Git

AI Engineering

Azure services reflect production experience. RAG, embeddings, and vector patterns represent applied learning.

  • Azure OpenAI
  • Azure AI Foundry
  • Document Intelligence
  • LLM
  • RAG
  • Embeddings
  • Vector Search
  • AI Agents
  • Prompt Engineering

Testing & Quality

  • Jest
  • React Testing Library
  • Automated Testing

Architecture & Engineering

How I design and deliver systems

Senior-level capabilities across enterprise architecture, cloud platforms, APIs, performance, security, and AI application patterns.

  • Enterprise Web Architecture

    Scalable frontend systems with reusable components, clear boundaries, and maintainable delivery patterns.

  • Microservices & API Design

    REST and GraphQL integration, service boundaries, and reliable API contracts across distributed systems.

  • Cloud Architecture

    Cloud-backed application design across AWS and Azure for enterprise workloads.

  • AI Application Architecture

    Production Azure AI integration plus applied RAG, embeddings, and vector search patterns for intelligent workflows.

  • Performance Engineering

    Optimization across UI rendering, API integration, and delivery pipelines for responsive user experiences.

  • Security & RBAC

    Authentication, authorization, and role-based access patterns in enterprise application design.

  • CI/CD & Delivery

    Automated testing, GitHub Actions, and Agile delivery practices for reliable releases.

  • Technical Leadership

    Architecture guidance, code reviews, and mentoring across cross-functional engineering teams.

Achievements

Verified impact

Only measured outcomes from confirmed delivery work.

30%

Increase in user engagement

Verified outcome from Aayumed.com product improvements.

30%+

Reduction in production issues

Achieved on the PMMS project through comprehensive unit and integration testing.

Education

Academic foundation

Bachelor of Engineering (BE)

Vinayaka Mission's Research Foundation University

Contact

Let’s discuss your next enterprise initiative

Open to Senior Full Stack, Lead, Frontend Architecture, and AI Application Engineering roles.

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