Senior Full-Stack Engineer (Java/AWS/Azure)

SANJEET SINGH

Jacksonville, Florida, USA Mobile: +1-904-***-**** Email: ****.***@*****.***

Authorized to work in the U.S. (H1B)

PROFESSIONAL SUMMARY

10+ years of experience in full-stack development of enterprise, retail, and transportation applications.

Expertise in building scalable web applications using Java (Core Java, Java 8+), Spring Boot, Node.js, and Angular.

Strong proficiency in developing microservices and REST APIs with secure authentication using JWT and OAuth2.

Experienced in implementing offline synchronization, caching, and UI performance optimization for large-scale systems.

Proven experience designing and deploying end-to-end cloud-based solutions using AWS (EC2, S3, Lambda) and Azure.

Skilled in database design and integration with MySQL, PostgreSQL, MongoDB, and SQL Server.

Solid understanding of Agile/Scrum methodology, CI/CD pipelines, and DevOps practices using Jenkins and Azure DevOps.

Excellent collaboration skills working with architects, business analysts, and cross-functional teams to deliver high-quality, maintainable software.

TECHNICAL PROFICIENCIES

Programming Languages / Frameworks: Java (Core Java, Java 8+), Spring Boot, JPA/Hibernate, REST APIs, Microservices, Node.js, Express.js, Angular, React, JavaScript (ES6+), TypeScript, HTML5, CSS3, jQuery

Databases: MySQL, PostgreSQL, MongoDB, SQL Server

Cloud Platforms: AWS (EC2, S3, Lambda), Azure (DevOps, Pipelines, App Services)

Tools / Version Control: Git, SVN, GitHub, GitLab, JIRA, Asana

Build & CI/CD: Maven, Gradle, Jenkins, Azure DevOps Pipelines

IDEs / Editors: IntelliJ IDEA, Eclipse, Visual Studio Code

Other Skills: JWT Authentication, OAuth2, Docker (basic), Agile/Scrum methodology

PROFESSIONAL EXPERIENCE

Nagarro Inc May 2022 – Till Date

Staff Engineer

Domain: Transportation

Project Name: Bridge Inspection and Manual Sync POC – A transportation inspection platform for real-time data synchronization, offline usage, and compliance reporting.

Designed and developed 20+ REST APIs in Spring Boot, improving inspection reporting efficiency by 30%.

Built Angular 17 components for inspection forms, grids, and real-time dashboards.

Implemented offline database synchronization using SQLite and Ionic POC for mobile inspection modules.

Optimized caching and UI rendering to eliminate flickering and enhance responsiveness.

Delivered secure data synchronization, role-based access, and automated compliance reports.

Collaborated closely with architects and business analysts for requirement finalization and business demos.

Environment: Java, Spring Boot, Angular 17, SQLite, Ionic, AWS EC2, Maven, Jenkins, TypeScript, Git

Publicis Sapient Nov 2020 – Apr 2022

Senior Associate Technology L1

Domain: Retail / E-Commerce

Designed and implemented Spring Boot microservices for product, inventory, and order management systems.

Developed reusable Angular and React components to enhance UI scalability and reduce maintenance.

Integrated JWT and OAuth2 authentication for secure customer and admin sessions.

Optimized PostgreSQL and MongoDB schemas for order processing and product search modules.

Deployed microservices on AWS EC2 and Lambda using automated CI/CD pipelines.

Resolved critical performance bottlenecks, achieving a 40% improvement in response time.

Environment: Java, Spring Boot, Node.js, React, Angular, PostgreSQL, MongoDB, AWS EC2/Lambda, Jenkins

R-Systems Jul 2019 – Oct 2020

Senior Software Engineer

Domain: Casinos & Gaming

Developed and deployed Node.js APIs supporting 24/7 slot game availability.

Built Angular dashboards for promotions, player management, and real-time gaming statistics.

Configured Docker and Portainer for containerized deployments and service monitoring.

Integrated JWT-based authentication for secure gaming APIs.

Environment: Node.js, Angular 8, MongoDB, Docker, JWT, GitLab CI/CD

Techugo Pvt. Ltd. Mar 2017 – Jun 2019

Software Developer

Domain: Healthcare / Hospitality

Designed Node.js APIs for video appointments, doctor schedules, and e-prescriptions.

Integrated Stripe payment gateway ensuring PCI compliance and secure transactions.

Developed Angular components for appointment booking, notifications, and patient dashboards.

Collaborated with iOS and Android teams for seamless mobile integration.

Environment: Node.js, Angular 8, MySQL, Stripe, AWS S3, GitHub

ADDITIONAL PROJECTS

Slyde (Fashion / Social Media): Developed Node.js backend APIs with JWT authentication for a fashion-sharing platform.

Platute (Education): Designed Angular-based Admin Panel and backend APIs for an online tutoring platform.

Chatkazam (Social Media): Implemented real-time WebSocket chat and advertising modules.

iMenu & iCashier (Food Tech): Built REST APIs for order tracking, billing, and payment integration.

EDUCATION

Master of Business Administration (MBA) – Information Technology, ICFAI University, 2019

Bachelor of Technology (B.Tech) – Computer Science, Maharshi Dayanand University, 2015

Contact this candidate