Unix Middleware Engineer

Unison Consulting Pte Ltd; Kuala Lumpur; On-site; MYR 70,000 - 100,000; Full time

Job summary

A consulting firm based in Kuala Lumpur is seeking an experienced Unix System Administrator to manage enterprise-level RHEL systems and middleware platforms. Responsibilities include configuration, performance tuning, and ensuring system availability. Candidates should have strong skills in messaging system administration, especially with IBM MQ and Apache Kafka, along with proficiency in Bash or Python for automation tasks.

Qualifications

• Experience with RHEL 7/8 installation, tuning, and security hardening.
• Strong knowledge in JBoss EAP and Oracle WebLogic deployment and clustering.
• Proficiency in messaging systems administration, specifically with IBM MQ and Kafka.
• Scripting skills in Bash, Shell, or Python for automation tasks.

Responsibilities

• Install, configure, and maintain RHEL servers in various environments.
• Administer middleware platforms including JBoss EAP and Oracle WebLogic.
• Manage messaging systems such as IBM MQ and Apache Kafka.
• Perform system performance tuning and troubleshoot as needed.
• Plan and apply patches/upgrades with minimal downtime.
• Monitor system health and security using the appropriate tools.

Skills

RHEL 7/8

JBoss EAP

Oracle WebLogic

IBM MQ

Apache Kafka

Bash

Shell

Python

Ansible

Nagios

Zabbix

Prometheus

Git

TCP/IP

DNS

Load Balancing

SSL/TLS certificate management

Job description

We are seeking an experienced Unix System Administrator to manage and support enterprise-level Red Hat Enterprise Linux (RHEL) systems, middleware platforms (JBoss, WebLogic), and messaging platforms (IBM MQ, Apache Kafka). The role involves installation, configuration, patching, performance tuning, troubleshooting, and ensuring high availability of systems and applications.

Key Responsibilities

• Install, configure, and maintain RHEL servers in physical and virtualized environments.
• Administer and manage middleware platforms including JBoss EAP and Oracle WebLogic Server.
• Manage messaging systems: IBM MQ (queues, channels, security) and Apache Kafka (brokers, topics, partitions).
• Perform system and application performance tuning and troubleshooting.
• Plan and apply OS and middleware patches/upgrades with minimal downtime.
• Monitor system health, capacity, and security using appropriate tools.
• Automate routine administrative tasks using shell scripting or Ansible.
• Work with application teams for deployment and environment configuration.
• Ensure backup, disaster recovery, and failover readiness.
• Document configurations, procedures, and incident resolutions.

Required Technical Skills

• Operating Systems: RHEL 7/8 (installation, tuning, security hardening).
• Middleware: JBoss EAP, Oracle WebLogic (deployment, clustering, JVM tuning).
• Messaging: IBM MQ administration, Kafka setup & monitoring.
• Scripting: Bash, Shell, or Python for automation.
• Tools: Ansible, Nagios/Zabbix/Prometheus, Git.
• Networking: TCP/IP, DNS, Load Balancing, SSL/TLS certificate management.

Soft Skills

• Excellent troubleshooting and problem-solving skills.
• Strong communication skills for collaboration with application and infrastructure teams.
• Ability to work under pressure in production support environments.

Nice to Have

• Experience with containerization (Docker, OpenShift, Kubernetes).
• Knowledge of CI/CD pipelines (Jenkins, GitLab).
• Exposure to cloud platforms (AWS, Azure).