JAVA Developer

About RADIUS

RADIUS is an AI-powered Omnichannel Interaction System (OIS) that unifies every customer touchpoints into a single intelligent platform. It empowers enterprises to manage customer interactions seamlessly, ensuring context continuity, faster resolutions, and superior customer experiences.

Developed by VIS Networks, a technology-driven company committed to transforming customer engagement, RADIUS combines innovation, scalability, and automation to help businesses deliver connected, data-driven, and future-ready CX.

Role Overview

As a Java Developer at RADIUS, you will work on backend systems that power real-time customer interactions and enterprise workflows. This role is ideal for fresh graduates or early-career professionals with strong fundamentals in Java, backend development, and problem-solving.

You will collaborate closely with product, QA, and DevOps teams to design, develop, and optimize scalable backend services.

Key Responsibilities

Design, develop, test, and maintain Java-based backend applications.
Build and manage RESTful APIs using Spring Boot.
Implement real-time communication features using socket programming and WebSockets.
Perform database operations using JDBC and Hibernate (JPA).
Apply multithreading and concurrency concepts to improve performance and scalability.
Write clean, efficient, thread-safe, and maintainable code.
Solve real-world problems using appropriate Data Structures and algorithms.
Debug, troubleshoot, and optimize application performance.
Follow clean code principles, design patterns, and coding standards.
Participate in code reviews and Agile/Scrum ceremonies.
Collaborate with cross-functional teams, including QA, DevOps, and Product.
Use version control systems like Git and SVN for code management.

Requirements Skills

Bachelor’s degree in computer science, Information Technology, or a related field.

Programming & Frameworks

Java (Core Java, Java 8+ features)
Spring Boot, Spring MVC

Database & Persistence

JDBC, Hibernate, JPA
SQL and NoSQL databases
MySQL / PostgreSQL

Core Java Concepts

Object-Oriented Programming (OOP)
Collections Framework
Exception Handling

Concurrency & Multithreading

Thread lifecycle and synchronization
Locks, Executors framework
Volatile keyword
Thread safety
Deadlocks and race conditions

Computer Science Fundamentals

Data Structures
Algorithms
Time and Space Complexity

APIs & Tools

REST APIs, JSON
Version control: Git, SVN (GitHub / GitLab)

Good to Have Skill

Spring Security
Basics of Microservices architecture
Asynchronous programming concepts
Unit testing with JUnit and Mockito
Linux/Unix fundamentals
Build tools: Maven or Gradle

Why Join Us?

Get hands-on exposure to scalable backend systems, real-time communication, and modern Java frameworks.
Learn by doing: your code ships to production and impacts live customer interactions.
Gain mentorship from experienced engineers and grow your technical depth early in your career.
Be part of a product-led, fast-growing organization that values ownership and innovation.
Build solutions that solve real business and CX challenges, not just internal tools.