Java Developer / Integrator

Job Description – Java Developer / Integrator

Job Description

Develop and enhance applications using Java 1.8+ and Spring frameworks.

Build and support REST APIs and integration components.

Design and implement system integrations between internal and external applications.

Configure API connections, data mappings, and message transformations.

Troubleshoot integration issues and ensure smooth data flow between systems.

Work with middleware tools such as API Gateway, ESB, MQ, or Kafka.

Support deployment activities and environment setup.

Collaborate with internal teams and vendors to deliver integration solutions.

Requirements

5–10 years of experience in Java 1.8 or higher.

Strong knowledge of Spring / Spring Boot and REST APIs.

Experience in system integration and API management.

Familiarity with middleware or messaging tools (MQ, Kafka, ESB).

Good understanding of JSON/XML and authentication methods (OAuth2, JWT).

Strong analytical and troubleshooting skills.

Ability to work independently and coordinate with multiple teams.

PERSOL Singapore Pte Ltd • RCB No. 200007268E

EA License No. 01C4394 • EA Registration No. R1113321 (Jacob Tijo)