Senior Java Engineer at Interswitch

Job Summary

• We are seeking a highly skilled Senior Java Engineer to design, develop, and maintain high-performance, scalable, and secure Java-based applications. As a key member of our engineering team, you will lead technical initiatives, mentor junior engineers, and contribute to architectural decisions. 
• The ideal candidate has extensive experience with Java ecosystems, microservices, cloud technologies, and a strong understanding of software development best practices.

Key Responsibilities

• Design, develop, and deploy robust, scalable Java applications using Spring Boot, Microservices, and Cloud-Native technologies.
• Lead technical discussions, architecture design, and code reviews to ensure high-quality software delivery.
• Optimize application performance, troubleshoot issues, and implement solutions for scalability and reliability.
• Collaborate with cross-functional teams (Product, DevOps, QA) to deliver features aligned with business goals.
• Mentor junior engineers, promote best practices in coding, testing, and CI/CD pipelines.
• Stay updated with emerging technologies and advocate for improvements in development processes.
• Ensure compliance with security and data protection standards.

Education & Certifications

• Bachelor’s or Master’s Degree in Computer Science, Engineering, or related field.
• Relevant certifications (Spring Professional, etc.) are a plus.

Preferred Qualifications:

• Experience with reactive programming (Project Reactor, RxJava).
• Knowledge of frontend technologies (React) is a plus.
• Contributions to open-source projects or technical blogs.

Required Skills & Qualifications:

• 5+ years of professional experience in Java development (Java 8/11/17+).
• Strong expertise in Spring Framework (Spring Boot, Spring Cloud, Spring Security).
• Experience with microservices architecture, RESTful APIs, and distributed systems.
• Proficiency in SQL/NoSQL databases (MS SQL etc.).
• Hands-on experience with cloud platforms (AWS, Azure, or GCP) and containerization (Docker, Kubernetes).
• Familiarity with message brokers (Kafka, RabbitMQ) and caching solutions (Redis).
• Knowledge of DevOps practices (CI/CD, Jenkins, GitLab CI, GitHub Actions).
• Strong understanding of design patterns, OOP, and system architecture.
• Experience with unit / integration testing (JUnit, Mockito, TestNG).
• Excellent problem-solving skills and ability to work in an Agile environment.

Why Join Us?

• Competitive salary and equity options.
• Flexible work arrangements (hybrid).
• Opportunity to work on cutting-edge technologies with a talented team.
• Career growth and learning & development programs.