Backend Java & Spring Boot Developer Intern

BajriX Private Limited; Hinoba-an; On-site; PHP 59,000 - 74,000; Full time

Benefits offered by this job

Monthly stipend ₹8,000–₹10,000

Internship Completion Certificate

Letter of Recommendation

PPO consideration

Job summary

BajriX Private Limited invites a Backend Development Intern to join the engineering team and work on real production features used by customers. You will contribute to backend systems powering the marketplace, collaborating with founders and engineers in a startup environment.

Key focus areas include Java and Spring Boot development, REST API design, PostgreSQL databases, and cloud deployment with AWS. This internship offers mentorship, practical exposure, and a monthly stipend.

Qualifications

• Hands-on experience with Java and Spring Boot.
• Understanding of REST APIs and SQL basics.
• Familiarity with Git and basic backend architecture.

Responsibilities

• Developing and enhancing backend APIs using Java and Spring Boot.
• Working with PostgreSQL databases and designing schemas.
• Implementing authentication, authorization, and API validations.
• Writing clean, maintainable code and performing code reviews.
• Collaborating with engineers to ship production-ready features.

Skills

Java

Spring Boot

OOP

REST APIs

SQL

Git basics

HTTP methods

Tools

PostgreSQL

Maven

Docker

AWS

GitHub

JUnit/Mockito

Job description

BajriX is a fast-growing marketplace for construction and real estate materials. Our mission is to simplify how buyers discover products and connect with verified suppliers across India.

We're building technology that helps suppliers, contractors, builders, architects, businesses, and homeowners source construction materials more efficiently through a modern digital platform.

As an intern, you will work directly with the founders and engineering team on real backend systems and production features used by actual customers.

Learn from Industry Professionals

At BajriX, interns work closely with founders who have experience building products and technology solutions at leading global organizations including Microsoft, Amazon, EY, PwC, Adobe, Siemens Healthineers, and Arrise Solutions.

This internship offers exposure to:

• Real-world backend software engineering practices
• Designing and developing production REST APIs
• Database design and optimization
• Authentication, authorization, and application security
• Cloud infrastructure and deployment workflows
• Code reviews and collaborative development
• Startup product development and execution
• Career guidance from experienced software professionals

Selected high-performing interns may also receive mentorship on resume building, interview preparation, system design, and career growth.

What You'll Work On

As a Backend Development Intern, you will contribute to the backend systems powering BajriX's buyer, seller, admin, and marketplace applications.

Your responsibilities may include:

• Developing and enhancing backend APIs using Java and Spring Boot
• Designing clean, scalable, and maintainable REST APIs
• Working with PostgreSQL databases
• Designing and modifying database tables, relationships, and schemas
• Writing and optimizing SQL queries
• Implementing business logic for marketplace features
• Building authentication and authorization functionality
• Integrating backend services with frontend and mobile applications
• Implementing validations, exception handling, and API error responses
• Debugging backend issues and fixing production bugs
• Improving API performance and database efficiency
• Writing clean, reusable, and maintainable Java code
• Working with AWS services and cloud infrastructure
• Participating in feature discussions, code reviews, and technical planning
• Testing APIs and validating implemented features
• Collaborating with developers to ship production-ready code

Skills Required

Must Have

• Good hands-on experience with Java
• Good hands-on experience with Spring Boot
• Understanding of Object-Oriented Programming (OOP)
• Understanding of REST APIs
• SQL
• Basic database concepts
• Basic Git knowledge
• Understanding of HTTP methods and status codes
• Basic understanding of backend application architecture
• Problem-solving and debugging skills

Good to Have

• Spring Data JPA / Hibernate
• Spring Security
• Maven
• Postman
• Docker
• AWS
• GitHub
• Microservices concepts
• Database indexing and query optimization
• Unit testing using JUnit / Mockito
• CI/CD concepts

Who We're Looking For

We value strong Java and Spring Boot experience, curiosity, ownership, and willingness to learn.

You may be a great fit if you:

• Have good practical experience building with Java and Spring Boot
• Enjoy backend development and solving technical problems
• Have built Java or Spring Boot projects independently, academically, or professionally
• Understand how APIs, databases, and applications interact
• Are comfortable debugging problems rather than giving up when something breaks
• Write structured and maintainable code
• Take ownership of assigned tasks
• Can communicate clearly and ask questions when stuck
• Want hands-on experience building a real production application
• Are interested in understanding how scalable technology products are built

Having a GitHub profile or previous Java/Spring Boot projects will be a strong advantage.

What You'll Gain

• Hands-on experience working on a live production backend
• Strong practical experience with Java and Spring Boot
• Experience building APIs used by real customers
• Exposure to PostgreSQL and production database design
• Understanding of authentication and application security
• Exposure to AWS and cloud-based application deployment
• Experience debugging and improving production systems
• Experience with Git-based collaborative development workflows
• Direct mentorship from founders and experienced engineers
• Understanding of backend architecture and system design
• Experience building technology in a fast-moving startup environment
• Monthly stipend of ₹8,000 – ₹10,000
• Internship Completion Certificate
• Letter of Recommendation for outstanding performers
• Opportunity to work closely with startup founders
• Hands-on access to real production systems and engineering challenges
• PPO (Pre-Placement Offer) consideration for exceptional performers
• Potential future ESOP eligibility for long-term contributors

Build With Us

If you're excited about building something meaningful from the ground up, we'd love to hear from you.