Senior Infrastructure Engineer / Middleware Specialist (East location)
Summary
An infrastructure/middleware role in Singapore's East Region (S$5,500–6,900/month): maintaining Windows, Linux, AIX and Solaris servers, running middleware like WebSphere, IBM MQ and JBoss, administering DB2/PostgreSQL/MySQL and LDAP, and supporting Docker, Kubernetes and OpenShift platforms, including patching, troubleshooting and deployment planning.
Salary: $5,500 – $6,900 per month
About the role
Support and maintain Windows, Linux, AIX, and Solaris servers. Install, configure, and manage middleware such as WebSphere, IBM MQ, and JBoss. Administer databases including DB2, PostgreSQL, and MySQL. Manage LDAP services and user authentication systems. Support container platforms such as Docker, Kubernetes, and OpenShift. Perform troubleshooting, patching, upgrades, and system maintenance. Assist in infrastructure sizing, deployment planning, and technical solution design. Work closely with internal teams and customers to support project delivery.
Key responsibilities
Support and maintain Windows, Linux, AIX, and Solaris servers
Install, configure, and manage middleware such as WebSphere, IBM MQ, and JBoss
Administer databases including DB2, PostgreSQL, and MySQL
Manage LDAP services and user authentication systems
Support container platforms such as Docker, Kubernetes, and OpenShift
Perform troubleshooting, patching, upgrades, and system maintenance
Assist in infrastructure sizing, deployment planning, and technical solution design
Work closely with internal teams and customers to support project delivery
About you
5-8 years of experience in IT infrastructure, system administration, or middleware support
Hands-on experience with Linux/Unix administration and middleware technologies
Good understanding of application architecture, databases, web servers, and messaging systems
Knowledge of Unix Shell scripting
Experience with Docker, Kubernetes, and OpenShift
Strong problem-solving, communication, and teamwork skills
Willingness to work with both legacy systems and modern cloud technologies
Preferred: Experience with AWS, Azure, or GCP environments
Preferred: Cloud or platform certifications such as AWS, Azure, Red Hat, Kubernetes, or OpenShift
Preferred: Experience supporting infrastructure design, sizing, and deployment activities.
EA License No.: 01C4394 (PERSOLSingapore Pte Ltd)
EA Registration No. R1873450 (JyotiKumari)
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