Senior Java Developer (Apache Kafka, Event-Driven Architecture, Distributed Systems, Hibernate ORM, AWS)

NOVACLOUD SYSTEMS PTE. LTD.; Singapore; On-site; SGD 180,000 - 260,000; Full time

Job summary

NOVACLOUD SYSTEMS PTE. LTD. seeks an experienced Senior Java Developer to design and deliver enterprise-grade applications. You will work across backend services, REST API development, and cloud-native AWS deployments, while leveraging microservices and event-driven architectures to ensure scalability and reliability.

Ideal candidates have deep Java experience, strong SQL/Oracle skills, and hands-on Kafka and frontend tech like Angular/Javascript/AJAX, within an Agile/Scrum team environment.

Qualifications

• 13+ years of senior Java development experience in enterprise applications.
• Strong background with Java, Spring Boot and Hibernate ORM.
• Hands-on design and development of Microservices and distributed systems.
• Proficient in REST API design and integration.
• Hands-on experience with Event-Driven Architecture and asynchronous processing.
• Extensive AWS cloud services and cloud-native development experience.
• Solid SQL and Oracle database design, tuning and optimization.
• Experience with Apache Kafka and frontend technologies (Angular, JavaScript, AJAX).
• Familiarity with Agile/Scrum, technical design, code reviews, and cross-functional collaboration.

Responsibilities

• Design, develop, and maintain enterprise-grade applications using Java, Spring Boot, and Hibernate ORM.
• Build and enhance backend solutions with Microservices architecture for high-volume processing.
• Develop and integrate REST APIs for secure enterprise communication.
• Implement event-driven and asynchronous processing for responsiveness.
• Design, deploy, and maintain cloud-native apps on AWS for high availability.
• Manage database operations using SQL and Oracle with performance tuning.
• Implement messaging using Apache Kafka for reliable data exchange and processing.
• Develop frontend components using Angular, JavaScript, and AJAX.
• Contribute to Agile/Scrum delivery through design, code reviews, debugging, and collaboration.

Skills

Java

Spring Boot

Hibernate ORM

Microservices

Distributed Systems

REST APIs

Event-Driven Architecture

AWS

SQL

Oracle

Angular

JavaScript

AJAX

Agile/Scrum

Tools

Apache Kafka

Angular

JavaScript

Job description

Responsibilities

• Design, develop, and maintain enterprise-grade applications using Java, Spring Boot, and Hibernate ORM, ensuring scalability and maintainability.
• Build and enhance backend solutions using Microservices Architecture and Distributed Systems to support high-volume transaction processing.
• Develop and integrate REST APIs to enable secure and efficient communication across enterprise applications.
• Implement Event-Driven Architecture and asynchronous processing mechanisms to improve system responsiveness and reliability.
• Design, deploy, and maintain cloud-native applications using AWS services, ensuring high availability and operational efficiency.
• Manage database operations using SQL and Oracle, including data modelling, query tuning, and performance optimization.
• Implement messaging and integration solutions using Apache Kafka for reliable data exchange and event processing.
• Develop and maintain frontend components using Angular, JavaScript, and AJAX to enhance application functionality.
• Contribute to Agile/Scrum delivery through technical design, code reviews, debugging, and collaboration with cross-functional development teams.

Requirements

• 13+ years of experience in Senior Java Development, enterprise application engineering, and software development.
• Strong experience in Java, Spring Boot, and Hibernate ORM.
• Hands-on experience in designing and developing Microservices Architecture and Distributed Systems.
• Strong experience in REST API development and integration.
• Hands-on experience in Event-Driven Architecture and asynchronous processing.
• Strong experience in AWS cloud services and cloud-native application development.
• Strong experience in SQL, Oracle, database design, and performance optimization.
• Hands-on experience in Apache Kafka, along with Angular, JavaScript, and AJAX.
• Experience in Agile/Scrum methodologies, technical design, code reviews, and collaborative software development.