Senior Java Developer

HI5 CONSULTING SOLUTIONS PTE. LTD.; Singapore; On-site; SGD 65,000 - 90,000; Full time

Job summary

HI5 CONSULTING SOLUTIONS PTE. LTD. in Singapore seeks an experienced Java developer to design and build scalable applications using Core Java, Spring Boot, and microservices.

The role focuses on creating robust REST APIs, integrating with Hibernate/JPA, and ensuring secure API access with JWT/OAuth 2.0. Strong SQL and debugging skills are essential, along with good communication and teamwork.

Qualifications

• 3–6 years of experience in Java development.
• Strong knowledge of Core Java and Spring Boot.
• Experience in developing Microservices and REST APIs.
• Knowledge of Hibernate/JPA.
• Strong SQL skills with query optimization.
• Basic understanding of Kafka and messaging.
• Knowledge of exception handling and error management.
• Understanding of API security, authentication, and authorization.
• Knowledge of JWT/OAuth 2.0 is a plus.
• Good problem-solving and debugging skills.
• Strong communication and teamwork abilities.

Skills

Java

Spring Boot

Microservices

REST APIs

Hibernate/JPA

SQL

Kafka

Exception handling

API security

JWT/OAuth 2.0

Debugging

Communication

Teamwork

Job description

Technical Skills:

Java (Core Java, Spring Boot, Microservices), Hibernate

SQL (query writing, optimization, performance tuning)

Kafka (understanding of messaging and transactions)

Exception handling and API security (authentication and authorization)

Job Requirements

• 3–6 years of experience in Java development.
• Good knowledge of Core Java and Spring Boot.
• Experience in developing Microservices and REST APIs.
• Knowledge of Hibernate/JPA.
• Good SQL skills, including writing and optimizing queries.
• Basic understanding of Kafka and messaging.
• Good knowledge of exception handling and error management.
• Understanding of API security, authentication, and authorization.
• Knowledge of JWT/OAuth 2.0 is an added advantage.
• Good problem-solving and debugging skills.
• Good communication and teamwork skills.