System Administrator

Skywaves Rise; Pretoria; On-site; ZAR 850,000 - 1,200,000; Full time

Job summary

Skywaves Rise is seeking a Senior WebLogic Administrator to provision, harden, and sustain the middleware compute infrastructure on RHEL 8/9, ensuring High Availability and secure configurations for an enterprise OAS/ODI stack.

The role includes installing and clustering WebLogic Server 14.1.2 across DEV, QA, UAT and PROD, tuning JVM, optimizing SSL, and integrating with Active Directory for SSO.

Qualifications

• 7+ years of Oracle WebLogic / Fusion Middleware administration in highly secure environments.
• Strong Linux/RHEL bash scripting skills and experience with network load balancing routing (F5).
• Deep understanding of JVM tuning and middleware security hardening.

Responsibilities

• Install, configure, and cluster Oracle WebLogic Server 14.1.2 across DEV/QA/UAT/PROD using silent installations and WLST scripting.
• Execute the Repository Creation Utility (RCU) against Oracle 19c databases to build metadata schemas.
• Optimize JVM memory heap sizing, garbage collection parameters, WebLogic thread pools, and Node Manager configurations for peak loads.
• Generate, import, and manage CA-signed SSL/TLS certificates and integrate WebLogic authentication providers with Active Directory for SSO.

Skills

WebLogic Admin

Bash scripting

Linux RHEL

JVM tuning

Security hardening

Education

RHCSA or RHCE

Oracle WebLogic Server Admin Certified Professional

Job description

Duration: 12 Months, Client : TechM Client

The Role

We require a Senior WebLogic Administrator to provision, harden, and sustain the underlying middleware compute infrastructure on RHEL 8/9. You will guarantee High Availability (HA) clustering, strict network security, and optimal system performance for an enterprise OAS/ODI stack.

Key Responsibilities

• Install, configure, and cluster Oracle WebLogic Server 14.1.2 across a four-tier deployment landscape (DEV, QA, UAT, PROD) using silent installations and WLST scripting.
• Execute the Repository Creation Utility (RCU) against Oracle 19c databases to build metadata schemas.
• Optimize JVM memory heap sizing, garbage collection parameters, WebLogic thread pools, and Node Manager configurations to handle peak reporting loads.
• Generate, import, and manage CA-signed SSL/TLS certificates and integrate WebLogic authentication providers directly with Active Directory for SSO.

Required Qualifications & Expertise

• 7+ years of Oracle WebLogic / Fusion Middleware administration in highly secure environments.
• Strong Linux/RHEL bash scripting skills and experience with network load balancing routing (F5).
• Deep understanding of JVM tuning and middleware security hardening.
• Preferred Certifications: Oracle WebLogic Server Administrator Certified Professional; RHCSA or RHCE.