jagu sankar

Backend Developer Intern

0+ yrs exp 80 · Excellent

About

Detail-oriented Computer Science student specializing in backend engineering with hands-on experience in Java, Spring Boot, and RESTful API architecture. Demonstrated expertise in implementing secure JWT authentication, relational database design, and integrating AI capabilities using Spring AI. Strong problem solver with 350+ DSA problems solved, passionate about building clean, production-ready backend systems.

Skills & Expertise (31)

Java Advanced

8.0/10

0.25

Years Exp

Spring Boot Advanced

8.0/10

0.25

Years Exp

Spring Security Advanced

8.0/10

0.25

Years Exp

GitHub Advanced

8.0/10

0.25

Years Exp

REST APIs Advanced

8.0/10

0.25

Years Exp

Git Advanced

8.0/10

0.25

Years Exp

SQL Advanced

7.5/10

0.25

Years Exp

JWT Authentication Advanced

7.5/10

0.25

Years Exp

Postgresql Advanced

7.5/10

0.25

Years Exp

MySql Advanced

7.5/10

0.25

Years Exp

Spring Data JPA Advanced

7.5/10

0.25

Years Exp

Hibernate Advanced

7.5/10

0.25

Years Exp

Java 8 Advanced

7.0/10

0.25

Years Exp

Role-based Authorization Advanced

7.0/10

0.25

Years Exp

CRUD Operations Advanced

7.0/10

0.25

Years Exp

MVC Advanced

7.0/10

0.25

Years Exp

Postman Advanced

7.0/10

0.25

Years Exp

Maven Advanced

7.0/10

0.25

Years Exp

OOP Advanced

7.0/10

0.25

Years Exp

Collections Advanced

7.0/10

0.25

Years Exp

JDBC Advanced

7.0/10

0.25

Years Exp

Stream API Advanced

7.0/10

0.25

Years Exp

Exception Handling Advanced

7.0/10

0.25

Years Exp

Multithreading Intermediate

6.5/10

0.25

Years Exp

Data Structures & Algorithms Intermediate

6.5/10

0.25

Years Exp

Leetcode Intermediate

6.0/10

0.25

Years Exp

Python Intermediate

5.5/10

0.25

Years Exp

OpenCV Intermediate

5.0/10

0.25

Years Exp

YOLO Intermediate

5.0/10

0.25

Years Exp

NumPy Intermediate

5.0/10

0.25

Years Exp

Computer Vision Intermediate

5.0/10

0.25

Years Exp

Work Experience

Backend Developer Intern

Therayu Wellness Tech Pvt. Ltd.

Jan 2026 - Mar 2026

Developed REST APIs using Java and Spring Boot for healthcare workflows. Designed database schemas and optimized SQL queries using PostgreSQL. Implemented authentication and authorization using Spring Security. Built robust DTO mappings and centralized exception handling to ensure structured API responses. Collaborated with mentors using Git and GitHub in an Agile environment. Tested backend APIs using Postman and resolved functional issues.