Quantasis Java Spring Boot Backend Developer

V2 Solutions; Hinoba-an; On-site; PHP 986,000 - 1,446,000; Full time

Job summary

V2 Solutions is seeking a mid-level Java backend developer for an on-site role in Mumbai. The position is contract-to-hire with immediate joining and requires 3–4 years of experience.

You will build scalable backend services, secure authentication with JWT, and optimize database queries while collaborating in an Agile environment. Ideal candidates have strong Java 11/17+ skills, Spring ecosystem expertise, and experience with PostgreSQL or SQL Server.

Qualifications

• Proficient in Java 11/17+ with strong OOP fundamentals.
• Hands-on with Spring Boot, Spring MVC and Spring Security.
• Experience in REST API development and JWT-based auth.
• Knowledge of SQL databases (PostgreSQL/SQL Server) and optimization.
• Familiar with unit testing (JUnit/Mockito) and English communication.

Responsibilities

• Develop scalable backend services and REST APIs.
• Implement secure authentication using Spring Security and JWT.
• Design and optimize PostgreSQL/SQL Server databases.
• Integrate third‑party APIs and support mobile/web backends.
• Write unit/integration tests and troubleshoot production issues.
• Collaborate with QA, DevOps and business teams in Agile.

Skills

Java 11/17+

OOP concepts

Spring Boot

Spring MVC

Spring Security

Spring Data JPA / Hibernate

REST API Development

JWT Authentication

PostgreSQL / SQL Server

SQL Optimization

JUnit Mockito

Excellent English Communication Skills

Tools

Docker

Redis

RabbitMQ/Kafka

AWS/Azure

CI/CD

Microservices

Swagger/OpenAPI

Job description

About The Role

Experience : 3 4 Years Location : Ghatkopar, Mumbai (Work From Office) Employment Type: Contract-to-Hire (C2H) Joining : Immediate Joiner Preferred MUMBAI LOCALITE closer to office location will be considered (NO RELOCATION)

Key Responsibilities

• Develop scalable backend services and REST APIs.
• Implement secure authentication using Spring Security and JWT.
• Design and optimize PostgreSQL/SQL Server databases.
• Integrate third‑party APIs.
• Support mobile and web backend requirements.
• Write unit/integration tests and troubleshoot production issues.
• Collaborate with QA, DevOps and business teams in Agile.

Required Skills Qualifications

Mandatory Skills

• Java 11/17+
• OOP concepts
• Spring Boot
• Spring MVC
• Spring Security
• Spring Data JPA / Hibernate
• REST API Development
• JWT Authentication
• PostgreSQL and/or SQL Server
• SQL Optimization
• JUnit Mockito
• Excellent English Communication Skills

Good to Have

• Docker
• Redis
• RabbitMQ/Kafka
• AWS/Azure
• CI/CD
• Microservices
• Swagger/OpenAPI