Hi, I am Tanuja.
A Java Backend Developer with 2.2 years of experience building scalable backend systems using Java, Spring Boot, Microservices, REST APIs, SQL, and AWS.
About Me
I am a passionate and results-driven Java Backend Developer with 2 years of experience in building
scalable, high-performance backend systems and enterprise applications. Currently working as a
Java Developer at Datagateway, I specialize in designing robust backend architectures using
Java, Spring Boot, Microservices, and REST APIs.
I have hands-on experience working on CRM platforms, HRMS, real-estate CRMs, email validation systems,
and internal enterprise tools. My work includes implementing secure authentication with
JWT & Spring Security, optimizing database interactions using MySQL & Hibernate,
and integrating services in distributed systems.
I am also experienced in deploying applications on AWS (EC2) using Docker and
CI/CD pipelines, ensuring smooth, automated releases. I enjoy working in Agile environments,
solving complex backend problems, and translating business requirements into clean, maintainable code.
Technical Skills
Work Experience
- Engineered backend for a sales-focused CRM platform, implementing prospect search, lead management, authentication, and activity tracking using Spring Boot APIs, improving data access efficiency by 25%.
- Built a scalable Email Validation System supporting single and bulk verification with domain checks, regex validation, and history logs, reducing manual validation efforts by 40%.
- Developed admin dashboards for CRM and Email Validation systems, enabling user management, analytics, activity monitoring, and role-based access.
- Created a Chrome Extension to scrape structured LinkedIn profile data, enabling faster lead collection and seamless integration with CRM APIs.
- Developed a Real Estate CRM system with property listing management, client inquiry tracking, automated follow-ups, and role-based access control using Spring Boot and REST APIs, enhancing lead conversion efficiency.
- Designed and implemented a full HRMS system with leave requests, leave history, salary and balance tracking, automated email notifications, and an admin dashboard, serving 100+ employees.
- Developed a micro website for company whitepapers, including upload modules, metadata handling, secure downloads, and analytics.
- Managed deployment of 5+ live applications on AWS using Docker and CI/CD pipelines, ensuring automated builds, seamless releases, and stable backend operations.
Key Projects
- Developed a full-stack task management system with Angular frontend & Spring Boot backend.
- Implemented admin email-invite flow where users join projects through invite links.
- Improved task assignment accuracy by 30% through structured workflow and role-based access control.
- Built complete task lifecycle including creation, assignment, email alerts & drag-drop Kanban board.
- Integrated JWT authentication, role-based access, reusable UI components & modular API architecture.
- Built a comprehensive clinic / hospital management system using Spring Boot and Angular for patient registrations, appointments, and medical records.
- Implemented doctor scheduling, patient queue management, and prescription generation modules.
- Integrated JWT-based authentication and role-based access control for Admin, Doctor, Receptionist, and Patient roles.
- Added automated appointment reminders and notification flows for patients and doctors.
- Designed RESTful APIs with Spring Boot and used Hibernate for database operations.
Education
Contact Details
Mobile: +91-8669342971
Email: tanusuwarnakar123@gmail.com
Location: Pune