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.

Ready to build impactful products and grow with a fast-scaling CX platform? Apply today!