Middleware & System Integration Engineer (Java Platforms)

Tangspac Consulting Group; Singapore; On-site; SGD 70,000 - 110,000; Full time

Job summary

Tangspac Consulting Group in Singapore is seeking an experienced IT integration specialist to support and grow our multi-tier Java-based deployments. You will configure middleware, APIs, messaging systems, and file-based interfaces while ensuring reliable data flow and performance.

The role requires 3–8 years in system administration or application support, with hands-on experience in JBoss, IBM WebSphere, IBM MQ, REST/SOAP, and CI/CD.

Qualifications

• 3-8 years of experience in system administration, application support, middleware administration, or system integration.
• System administration and integration of multi-tier Java-based applications.
• Middleware technologies: JBoss and IBM WebSphere.
• REST/SOAP APIs, XML, JSON, and IBM MQ.
• File transfer protocols and tools: SFTP, SSH, and Connect:Direct.
• Server firewall configuration, connectivity troubleshooting, and user ID/access setup.
• SQL and database technologies: Oracle and Microsoft SQL Server.
• Linux/Unix commands, shell scripting, and basic Windows Server administration.
• DevOps practices and CI/CD pipeline support.
• System integration testing (SIT), user acceptance testing (UAT), and production troubleshooting.
• Experience with co-location setups and cross-country rollouts for real-time, low-latency applications.
• Strong communication, analytical, problem-solving, and independent working skills.

Responsibilities

• Experience working with multi-tier application (Java Platform).
• Configure and support middleware, APIs, messaging systems, and file-based interfaces.
• Monitor and troubleshoot integration issues, data flow failures, and performance bottlenecks.
• Coordinate with application, infrastructure, network, and vendor teams during implementation and support activities.
• Manage end-to-end integration testing, including SIT and UAT support.
• Develop and maintain technical documentation, architecture diagrams, and operational procedures.

Skills

System administration

Application support

Middleware administration

System integration

REST APIs

SOAP APIs

XML

JSON

Oracle

SQL Server

Linux/Unix

Shell scripting

CI/CD

DevOps

SIT

UAT

Co-location setups

Cross-country rollouts

Tools

JBoss

IBM WebSphere

IBM MQ

Job description

Tangspac Consulting Group in Singapore is seeking an experienced IT integration specialist to support and grow our multi-tier Java-based deployments. You will configure middleware, APIs, messaging systems, and file-based interfaces while ensuring reliable data flow and performance.

The role requires 3–8 years in system administration or application support, with hands-on experience in JBoss, IBM WebSphere, IBM MQ, REST/SOAP, and CI/CD.