Junior Java Developer

Preferred Experience

Work Location: Kolkata

About RS Software

RS Software builds global, national and enterprise payment platforms, and has presence in four continents. The product suite combines with knowledge systems built over 30 years, delivering mission-critical payment solutions that combine innovation and entrepreneurship to create the new gold standard for digital payments. With approximately 40% of the global digital payment volumes in 2021 processed on platforms built by RS Software, the vision is to deliver Payments at the Speed of Thought.

RS Software is focused on the global payments modernization market, providing large-scale, high-performance payment systems, serving central Infrastructures, financial institutions, payment network providers, payment processors and software companies providing products to the payment industry. The company's product suite offers ISO 20022 ready, open payments architecture using a cloud-based microservices framework - optimizing costs, seamless integrations with commoditized products, and accelerates the pace of adoption.

The company’s solutions today are installed in 12 of the top 20 banks in India, and the four major platforms built by RS Software cumulatively process annually 350+ billion transactions world-wide, giving the company a rare track record in the payments domain. RS Software’s product suite is getting recognized in some important markets, which is creating strategic partnerships, the foundation for the company’s long-term growth.

RS Software has bult India’s digital payment infrastructure, the three major payment platforms, which are transforming the lives of a billion+ people.

• Instant digital payment platform (UPI)
• Bill payment platform - Bharat Bill Payment System (BBPS)
• Enterprise Fraud and Risk Management (EFRM)

Why RS Software?

RS provides a unique experience of engaging in some world class product development and prestigious large scale payment platforms that caters to billions of people

We provide opportunity to learn and develop high throughput transaction processing systems

RS Software is one of the few technology and payment solutions providers where talented individuals have the opportunity to work on cutting-edge, complex, and mission-critical IT projects. We offer ample career opportunities to hardworking and skilled employees.

Our Talent Management Program is specifically designed to identify the interests of each employee and match them with suitable career paths within their desired domains, allowing them to make the best possible use of their skillsets in reaching their goals.

We invest in the knowledge and skill development of our employees with RS School of Payments – the industry’s most comprehensive training platform. There are three main areas of focus that the Academy and School address: current technology skills, professional development and payments domain knowledge.

Our customized training program, well-defined career mapping process and comprehensive appraisal system is designed to help every employee achieve their goals.

To address the challenges of relocation, we offer employees coming from other regions reimbursement for expenses associated with their moves as well as complimentary interim facilities, such as guesthouse accommodations, to ease the transition. We also assist employees with finding suitable housing.

• Learning and growing in a fast-paced payments technology environment where you'll be mentored by experienced engineers
• Writing clean, testable Java code using Test-Driven Development (TDD) practices with AI-assisted tools like GitHub Copilot, Cursor or JetBrains AI + IntelliJ, etc.
• Working collaboratively in cross-functional Agile/XP teams with pair programming sessions and continuous feedback loops
• Building and maintaining microservices that process thousands of payment transactions reliably and securely
• Debugging issues, writing comprehensive unit and integration tests, and taking ownership of your code from development to production
• Staying curious about emerging technologies, payment processing workflows, and modern development practices
• Participating in code reviews, learning from feedback, and contributing to improving team practices
• Working with CI/CD pipelines and seeing your code deployed frequently in a DevOps culture

Qualifications:

Experience & Education:

• 0-2 years of professional software development experience
• Bachelor's degree in computer science, Engineering, or equivalent practical experience
• Strong foundation in computer science fundamentals (data structures, algorithms, OOP principles)

Technical Skills:

• Proficiency in Modern Java (Java 11+) or other JVM languages (Kotlin, Scala)
• Experience with microservices architecture concepts and RESTful API design
• Solid understanding of unit testing and integration testing using JUnit, Mockito, or similar frameworks
• Test-Driven Development (TDD) methodology - ability to write tests before implementation
• Familiarity with Spring Framework (Spring Boot, Spring MVC)
• Understanding of relational databases (PostgreSQL, MySQL) and basic SQL
• Experience with version control systems (Git) and collaborative development workflows
• Knowledge of Agile/XP methodologies and iterative development practices

Soft Skills:

• Strong problem-solving abilities and attention to detail
• Excellent communication skills and willingness to ask questions
• Eagerness to learn and adapt to new technologies and practices
• Ability to work effectively in pair programming and collaborative environments

Nice to have:

• Exposure to AI-assisted coding tools (GitHub Copilot, Cursor, JetBrains AI + IntelliJ)
• Experience with containerization technologies (Docker)
• Familiarity with message queues (Kafka, RabbitMQ, AWS SQS)
• Knowledge of NoSQL databases (MongoDB, Redis, Cassandra)
• Experience with cloud platforms (AWS, GCP, Azure)
• Exposure to monitoring and observability tools (Prometheus, Grafana, ELK stack)
• Understanding of security best practices and PCI-DSS compliance basics
• Contributions to open-source projects or personal coding projects on GitHub
• Experience with API documentation tools (Swagger/OpenAPI)