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Neeraj Kumar

SDE | Java Backend Developer | Spring Boot | REST APIs | MySQL | Microservices Enthusiast

Gurugram

4+ years of work experience

TEXASAI
Jan 20233 yrs 7 mosPresent

Bengaluru

Working as a Software Developer Engineer, responsible for designing and developing backend services using Java, Spring Boot and microservices. Developed and maintained RESTful APIs for backend services using Spring Boot Implemented business logic using Core Java and OOP principles Integrated MySQL database and optimized queries for better performance Worked on file handling features such as document upload and download management system Used JPA (Hibernate) for database interaction and entity management Performed API testing using Postman and handled debugging issues Collaborated with team members using Git for version control Ensured proper exception handling and application stability designed and developed scalable backend APIs using Spring Boot Improved application performance by optimizing database queries Implemented secure file upload functionality with validation Followed clean architecture and coding best practices Contributed to debugging, bug fixing, and feature enhancements
TEXASAI
Apr 20251 yr 3 mosJun 2026

Project 1: Law Enforcement Case Management Platform Java 17 · Spring Boot · Spring Security · JWT · Apache Kafka · MySQL · JPA/Hibernate · AWS EC2/S3 · Microservices • Architected a multi-tenant law enforcement platform across 10+ independently deployable microservices handling investigative workflows and multi-agency data collaboration. • Designed 15+ production REST APIs covering case forms, task management, tips & leads tracking, and reporting with full integration documentation. • Reduced API latency by 25% and end-to-end response time by 40% via targeted MySQL query tuning and JPA/Hibernate index optimisation. • Improved system throughput by 2x through SOLID-driven service layer refactoring with zero infrastructure changes. • Built fault-tolerant Kafka event pipelines with idempotent consumers ensuring exactly-once processing semantics across distributed microservices. • Implemented JWT-based RBAC with Spring Security — token generation, request filtering, and protected endpoint authorisation — achieving zero unauthorised access in production. • Deployed and maintained services on AWS EC2/S3 supporting high-availability production environments; added multilingual Thymeleaf email templates with i18n support. Project 2: Resume Upload & User Management Platform Java 11 · Spring Boot · Spring Security · JWT · MySQL · JPA/Hibernate · ModelMapper · Jakarta Bean Validation · RBAC • Designed layered backend architecture (Controller → Service → Repository → DTO) for REST APIs covering registration, login, resume upload, and profile management. • Built stateless JWT authentication flow with centralised exception handling for validation errors, expired tokens, and invalid credentials. • Enforced request integrity using Jakarta Bean Validation for email format, password strength, and full payload validation.
Third Eye Inc.
Sep 20224 mosDec 2022

Karnataka, India

Education

Dr. A.P.J. Abdul Kalam Technical University (AKTU), Lucknow

Master of Computer Applications, Computer Science

Dr. A.P.J. Abdul Kalam Technical University (AKTU), Lucknow

20182 yrs2020

Bachelor of computer Application, Coumputer science

Dr. B. R. Ambedkar University, Agra

20143 yrs2017

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Headline

SDE | Java Backend Developer | Spring Boot | REST APIs | MySQL | Microservices Enthusiast

About

I am SDE Backend java developer with 3.5+ years of experience building robust, scalable applications. My focus is on Java and Spring Boot, especially in high-traffic environments. I thrive on continuous learning and building elegant, efficient solutions

Location

Gurugram

Work experience

Associate Software Engineer at TEXASAI, Jan 2023 - Present · 3 yrs 7 mos, Bengaluru, Working as a Software Developer Engineer, responsible for designing and developing backend services using Java, Spring Boot and microservices. Developed and maintained RESTful APIs for backend services using Spring Boot Implemented business logic using Core Java and OOP principles Integrated MySQL database and optimized queries for better performance Worked on file handling features such as document upload and download management system Used JPA (Hibernate) for database interaction and entity management Performed API testing using Postman and handled debugging issues Collaborated with team members using Git for version control Ensured proper exception handling and application stability designed and developed scalable backend APIs using Spring Boot Improved application performance by optimizing database queries Implemented secure file upload functionality with validation Followed clean architecture and coding best practices Contributed to debugging, bug fixing, and feature enhancements

Software Engineer at TEXASAI, Apr 2025 - Jun 2026 · 1 yr 3 mos, Project 1: Law Enforcement Case Management Platform Java 17 · Spring Boot · Spring Security · JWT · Apache Kafka · MySQL · JPA/Hibernate · AWS EC2/S3 · Microservices • Architected a multi-tenant law enforcement platform across 10+ independently deployable microservices handling investigative workflows and multi-agency data collaboration. • Designed 15+ production REST APIs covering case forms, task management, tips & leads tracking, and reporting with full integration documentation. • Reduced API latency by 25% and end-to-end response time by 40% via targeted MySQL query tuning and JPA/Hibernate index optimisation. • Improved system throughput by 2x through SOLID-driven service layer refactoring with zero infrastructure changes. • Built fault-tolerant Kafka event pipelines with idempotent consumers ensuring exactly-once processing semantics across distributed microservices. • Implemented JWT-based RBAC with Spring Security — token generation, request filtering, and protected endpoint authorisation — achieving zero unauthorised access in production. • Deployed and maintained services on AWS EC2/S3 supporting high-availability production environments; added multilingual Thymeleaf email templates with i18n support. Project 2: Resume Upload & User Management Platform Java 11 · Spring Boot · Spring Security · JWT · MySQL · JPA/Hibernate · ModelMapper · Jakarta Bean Validation · RBAC • Designed layered backend architecture (Controller → Service → Repository → DTO) for REST APIs covering registration, login, resume upload, and profile management. • Built stateless JWT authentication flow with centralised exception handling for validation errors, expired tokens, and invalid credentials. • Enforced request integrity using Jakarta Bean Validation for email format, password strength, and full payload validation.

associate software engineer trainee at Third Eye Inc., Sep 2022 - Dec 2022 · 4 mos, Karnataka, India

Education

Master of Computer Applications, Computer Science, Dr. A.P.J. Abdul Kalam Technical University (AKTU), Lucknow

Bachelor of computer Application, Coumputer science, Dr. B. R. Ambedkar University, Agra

Neeraj Kumar - Associate Software Engineer in Gurugram | Tal