Java Developer (1 Year Contract)

MORGAN MCKINLEY PTE. LTD.; Singapore; On-site; SGD 120,000 - 160,000; Full time

Job summary

Morgan McKinley Pte. Ltd. is seeking an experienced Java developer for an AWS cloud migration project in the government tech space. You will design, develop, and optimize cloud-based applications, focusing on robust integration and secure communications.

You will lead API design, collaborate with cross-functional teams, and ensure scalable, secure solutions while guiding the migration of enterprise applications to AWS. Strong Java, Spring, JMS, and OSB experience are essential.

Qualifications

• Bachelor's degree in CS/IT/Engineering or equivalent.
• 5+ years of Java development experience (Java 8+, J2EE, EJB, Spring).
• Knowledge of Spring Boot, Spring MVC, Spring Security, and API integration with SOAP/REST.
• Strong OSB routing, mediation, and integration patterns experience.
• Experience with JMS configuration and Oracle WebLogic Server administration.

Responsibilities

• Design, develop, and implement integration solutions for applications migrating to AWS.
• Prepare migration plans, timelines, and risk mitigation strategies.
• Collaborate with cross-functional teams to implement integration strategies.
• Work with migration team to execute application migration to AWS.

Skills

Java development

Spring Framework

API integration

JMS configuration

AWS cloud

Education

Bachelor's Degree in Computer Science / Information Technology / Computer Engineering or equivalent

Tools

OSB (Oracle ServiceBus)

Oracle WebLogic Server

Git

Gradle

Apache Ant

Terraform

CloudFormation

APIGateway

Job description

Job Overview

You will be deployed to our client who is a leading government technology agency driving digital transformation and innovation in the healthcare sector. You will be a key contributor in this AWS Cloud migration project, responsible for designing, developing, and optimizing applications forthe cloud environment. Extensive experience in application development in Java and expertise in AWS Cloud services will be crucial in ensuring the success of the transformative project to the modern healthcare IT transformation journey. You will also be the main point of contact for various project teams, providing technical guidance and solutions that are robust and secure.

Responsibilities

• Design, develop, and implement integration solutions for applications migrating to the AWS Cloud platform.
• Prepare detailed migration plans, timelines, and risk mitigation strategies.
• Collaborate with cross-functional teams to understand business requirements and implement effective integration strategies.
• Work closely with the migration team to execute the migration of applications to the AWS Cloud.
• Create and implement APIs to facilitate communication between applications and services.
• Ensure API designs adhere to best practices for scalability, security, and performance.
• Collaborate with team members to troubleshoot complex problems related to integration processes.
• Conduct thorough testing of integration solutions to ensure functionality, performance,and data accuracy.
• Collaborate with QA teams to develop and execute test plans for integrated systems.
• Provide documentation for troubleshooting and support purposes.
• Create and implement APIs to facilitate communication between applications and services.
• Ensure API designs adhere to best practices for scalability, security, andperformance.

Requirements

• Bachelor's Degree in Computer Science / Information Technology / Computer Engineering or equivalent.
• In-depth knowledge and hands-on experience with Enterprise service bus such as OSB (Oracle ServiceBus), including configuration, deployment, and management.
• At least 5 years ofexperience in Java development (Java 8 and above, J2EE, EJB, Spring Framework,etc.,)
• Knowledge of and Spring framework, specifically in Spring Boot, Spring MVC, Spring Security,Spring AOP, and API integration with SOAP and RESTful webservices
• Strong experience in OSB service routing, mediation, message transformation, and integration patterns.
• Ability to manage integrations & authentication between OSB and various systems, ensuring secure connection.
• Experience in JMS(Java Message Service) configuration and administration, including message queuing and reliable message delivery.
• Experience with Oracle WebLogic Server administration, including installation, configuration,and troubleshooting.
• Experience in designing, developing, and supporting SOA composites using Oracle SOA Suite(BPEL, Mediator, OSB)
• Familiarity with database integration to Oracle DB and PostgreSQL using Spring Data JPA,Hibernate, JDBC
• Knowledge inbuilding and version control with Git, Gradle, Apache Ant
• Hands-on experience with AWS Cloud-native services (e.g. EC2, S3, Lambda, SQS, RDS, Kubernates, APIGateway.)
• Familiarity with IaC tools like Terraform or CloudFormation
• Ability to handle performance tuning, monitoring, and scaling of OSB and associated components in AWS, ensuring optimal performance and reliability.
• Strong understanding of RESTful APIs, SOAP, and other communication protocols.