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).
Top Skills
What We Do
Unison Consulting was launched in Singapore on September 2012, the hub of the financial industry, with innovative visions in the technocratic arena. We are a boutique next-generation Technology Company with strong business-interests in Liquidity risk, Market Risk, Credit Risk and Regulatory Compliance.
Unison provides technology consulting and services to implement Risk Management and Risk Analytics System for Financial Institutions. Our services suite comprises of Techno-Functional consulting, systems integration, Business Intelligence, information management, and custom development of IT solutions, plus project management expertise for financial institutions.
We have expertise in latest cutting edge technology to achieve better total cost of ownership. Through our qualified professionals, we assist you drive your unique risk management strategies, whether that means efficient monitoring, improving risk appetite of the financial institutions, complying with regulations, or capturing growth opportunities through innovation, this is what maximizes your decision taking potential. At Unison Consulting, we view clients as partners, and our success is only measured by the success of our partners. So we put it all on the table in order to exceed expectations.
Our staff consists of young, energetic and innovative consultants who are never afraid to challenge the conventions and push the boundaries in an effort to help our clients. For every project, no matter how large or how small, we strive to not only meet your needs, but deliver a showcase in your field
