Sanjay  ·  Java Developer  ·  5+ yrs

Mid-Level
Dehradun5+ years experienceremote
Available within 48 hrs

About Sanjay

Sanjay Singh Katheth builds robust, scalable backend and full-stack applications as a Java Developer, bringing 5 years of experience. He develops RESTful APIs, microservices, and integrates diverse database technologies, including MySQL, MongoDB, and PostgreSQL. He applies his expertise across Cybersecurity, HR Tech, and Environmental Management, demonstrating versatility in delivering high-quality solutions.

Core expertise

Java
language
10/10
Spring Boot
backend
10/10
AWS
cloud
9/10
RE
REST
backend
9/10
JavaScript
frontend
8/10
MongoDB
database
8/10
MySQL
database
8/10
PostgreSQL
database
8/10
Swagger
tooling
8/10

Additional skills(8)

JavaSpring BootMongoDBJavaScriptjQueryPostgreSQLMySQLMicroservices

Why hire Sanjay?

Production deploy authorityMentored 5+ juniors

Developed secure backend REST APIs with JWT authentication and role-based access for critical platforms.

Enhanced user experience and streamlined security processes using JavaScript and jQuery.

Managed and configured multiple database systems including MySQL, MongoDB, and PostgreSQL for efficient data operations.

Integrated and utilized AWS services for robust cloud solutions.

Practiced CI/CD methodologies and utilized tools like Swagger for comprehensive API documentation and testing.

Successfully delivered secure backend REST APIs with JWT authentication and role-based access for critical platforms.

Developed and optimized microservices for enhanced modularity and scalability across various business functionalities.

Project highlights(4)

Cybersecurity Platform – Full-Stack Developer

Overview: REL-ID is an advanced security platform that simplifies security management for businesses, ensuring strong security and seamless user experiences by offloading security concerns. Responsibilities: Developed frontend functionality using JavaScript and jQuery to enhance user experience and streamline security processes, ensuring proper validation. Implemented secure backend APIs in Java to support platform features and functionalities, employing industry-standard security practices. Utilized Swagger for API descriptions, improving documentation and accessibility.

JavaSpring BootMongoDBJavaScriptjQuery

Key outcomes:

  • Enhanced user experience and streamlined security processes with frontend development.

  • Implemented secure backend APIs using industry-standard practices.

Job Management Platform – Backend Developer

Overview: Flex Force is a versatile platform that facilitates job posting, application submission, and activity management for clients, consultants, and admin modules. Responsibilities: Developed efficient RESTful APIs for three core modules: Client, Consultant, and Admin, prioritizing performance and reliability. Developed Microservices to handle Job Management, Job Application Profile Management, Static Data, and Email Services. Utilized Swagger to enhance API documentation quality and accessibility.

JavaSpring BootMicroservicesMongoDB

Key outcomes:

  • Developed efficient RESTful APIs for three core modules, improving performance and reliability.

  • Implemented microservices for key platform functionalities (Job Management, Email Services).

Social Media Integration APIs – Backend Developer

Overview: Decokay is likely a business platform, for which APIs were developed to integrate with Facebook and Instagram pages. Responsibilities: Developed efficient APIs for Decokay's Facebook and Instagram pages. Troubleshot and resolved any reported issues with the code and PostgreSQL database.

JavaSpring BootPostgreSQL

Key outcomes:

  • Developed efficient APIs for social media integration (Facebook, Instagram).

  • Successfully troubleshot and resolved reported code and database issues.

Environmental Management API – Backend Developer

Overview: This campaign by the Uttarakhand government aims to reduce forest fires by encouraging locals to collect pine needles for biomass energy, thereby reducing fire risks and providing community income. Responsibilities: Developed backend REST API for data management and processing. Implemented JWT authentication with Ranger and Admin roles for secure access. Configured database connection for efficient data storage and retrieval in MySQL.

JavaSpring BootMySQL

Key outcomes:

  • Developed a secure backend API with JWT authentication.

  • Enabled efficient data management for a government environmental initiative.

5+ years of industry experience

Government & Public Sector1 project
  • •Environmental Management API— Backend DeveloperJava · Spring Boot · MySQL
MarTech & AdTech1 project
  • •Environmental Management API— Backend DeveloperJava · Spring Boot · MySQL

Ready to work with Sanjay?

Onboard within 48 hours. No long hiring cycles, no recruiter middleman.

At a Glance

LocationDehradun
Experience5+ years
Work moderemote
Direct hirePossible
Start within48 hours
From$2,012/ month

Single contract. Billed in USD.

Typically responds within 4 business hours.

5-day replacement guarantee
48-hour onboarding, single invoice
Direct chat — no recruiter middleman

Top Skills

Java
10/10
Spring Boot
10/10
AWS
9/10
REST
9/10
JavaScript
8/10
Seniority signals
Owns production deploysSystem ownerCode reviewer
VerifiedVetted by Witarist
Technical skills assessed & verified
Background & identity checked
English communication verified
Ready to onboard in 48 hours

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Sanjay

Java Developer