Java Software Engineer

ACL Digital; Bengaluru; Hybrid; INR 1,500,000 - 2,800,000; Full time

Job summary

ACL Digital Bengaluru is seeking a Full Stack Developer (Java Backend & React.js) to join our engineering team in a hybrid setup. You will build robust backend microservices using Java and Spring Boot while integrating with modern React frontends.

If you are a backend-heavy engineer who designs resilient APIs, optimizes performance, and can navigate client-side UI when needed, this role suits you well.

Qualifications

• Proficient in Java 11+/17+, OOP principles, memory management.
• Hands-on Spring Boot with Spring Data JPA/Hibernate and Spring Security.
• Strong understanding of RESTful API design and backend architecture.
• SQL/ORMs proficiency and DB optimization.

Responsibilities

• Design, develop, and maintain high-throughput RESTful APIs and microservices using Java and Spring Boot.
• Optimize database schemas, write complex queries, and tune performance across relational and non-relational databases.
• Implement robust security, authentication, and authorization (OAuth2, JWT, Spring Security).
• Integrate third-party services, messaging queues (Kafka, RabbitMQ), and cloud services.
• Frontend integration with React.js and API collaboration with backend services.

Skills

Java

Spring Boot

API Design

SQL/ORMs

React.js

Security

Tools

Kafka

RabbitMQ

PostgreSQL

Job description

Work Mode

Hybrid(2 days/office)

Experience Range

4-8 Years

Full Stack Developer (Java Backend & React.js)

Job Type

Full-time

Focus

70% Backend (Java / Spring Boot) | 30% Frontend (React.js)

About the Role

We are looking for a skilled Full Stack Developer to join our engineering team. In this role, you will be the backbone of our application architecture—focusing heavily on building robust, scalable backend microservices using Java and Spring Boot, while seamlessly integrating with modern React.js frontends.

If you are a backend-heavy engineer who thrives on designing resilient APIs, optimizing system performance, and comfortably navigating client-side UI development when needed, this position is for you.

Key Responsibilities

• Design, develop, and maintain high-throughput, secure RESTful APIs and microservices using Java and Spring Boot.
• Optimize database schemas, write complex queries, and tune performance across relational (e.g., PostgreSQL, MySQL) or non-relational (e.g., MongoDB) databases.
• Implement robust security, authentication, and authorization mechanics (OAuth2, JWT, Spring Security).
• Integrate third-party services, enterprise messaging queues (Kafka, RabbitMQ), and cloud services.
• Frontend Integration (30%):
• Build responsive, dynamic user interfaces using modern React.js (Hooks, Context API, Redux/Zustand).
• Integrate frontend components seamlessly with backend microservices and APIs.
• System & Code Quality:
• Write clean, testable code using standard testing frameworks (JUnit, Mockito, Jest).
• Participate in code reviews, CI/CD pipeline automation, and technical documentation.
• Collaborate with cross-functional teams (Product, Design, DevOps) using Agile/Scrum practices.

Mandatory Skills & Qualifications

• Primary Focus — Java / Spring Boot (70%):
• Java Expertise: Core Java (Java 11/17+), OOP principles, multi-threading, concurrency, and memory management.
• Spring Framework: Heavy hands-on experience with Spring Boot, Spring Data JPA/Hibernate, Spring Security, and Spring MVC.
• API Design: Deep understanding of RESTful API standards, contract design, and backend system architecture.
• Databases: Strong proficiency in SQL/ORMs and database query optimization.
• Secondary Focus — React.js (30%):
• React Core: Functional components, React Hooks, JSX, lifecycle management, and State Management libraries.