Job Description:
Role Summary
We are seeking a Senior Oracle WebLogic Administrator with deep expertise in deploying, managing, and optimizing Oracle WebLogic Server and Oracle Fusion Middleware across on-premises and OCI-hosted environments. This role owns the full middleware lifecycle from domain provisioning, clustering, and performance engineering to patching, security hardening, and cloud migration supporting mission-critical Oracle application stacks including E-Business Suite, Siebel CRM, Oracle SOA Suite, Oracle Service Bus (OSB), and Oracle Integration middleware.
Key Responsibilities
WebLogic Domain Administration
- Install, configure, and manage Oracle WebLogic Server (12c, 14c) across development, staging, and production environments.
- Design and administer WebLogic domains including Admin Servers, Managed Servers, clusters, machine configurations, and Node Managers.
- Configure and manage JDBC data sources, connection pools, JMS resources (queues, topics, connection factories), and work managers.
- Administer WebLogic security realms authentication providers (LDAP, Active Directory, OAM), authorization policies, SSL/TLS certificates, and keystores.
- Manage WebLogic deployments EAR/WAR/JAR lifecycle, staged/nostage deployments, versioned deployments, and rollback procedures.
- Configure coherence clusters, session replication, and distributed caching where applicable.
Oracle Fusion Middleware Administration
- Administer Oracle SOA Suite SOA composites, BPEL processes, Mediator, Human Workflow, and Business Rules across SOA clusters.
- Manage Oracle Service Bus (OSB) proxy/business services, message pipelines, transformations, routing rules, and throttling configurations.
- Administer Oracle HTTP Server (OHS), Oracle Traffic Director (OTD), and Oracle Web Cache for web-tier load balancing and request routing.
- Manage Oracle Identity and Access Management (OAM, OIM, OUD, OID) middleware components on WebLogic.
- Administer Oracle Business Intelligence (OBIEE/OAS) and Oracle Forms/Reports middleware deployments.
- Manage Oracle Enterprise Manager Fusion Middleware Control (EM FMWC) for monitoring, diagnostics, and configuration management.
Oracle Application Stack Support
- Manage WebLogic and Fusion Middleware tiers underpinning Oracle E-Business Suite EBS WebLogic domains, Oracle HTTP Server, Forms/Reports services, and concurrent processing infrastructure.
- Administer middleware for Siebel CRM Siebel Application Interface (AI), Siebel Gateway, Siebel Server components, and WebLogic-hosted Siebel web services.
- Support Oracle SOA/OSB/AIA integration middleware composite deployment, fault management, adapter configurations (DB, File, FTP, JMS, REST), and endpoint lifecycle.
- Manage middleware for Oracle BRM BRM web services gateway, custom pipeline integration endpoints, and WebLogic-hosted billing APIs.
High Availability & Disaster Recovery
- Design and manage WebLogic clustering for horizontal scalability and active-active/active-passive HA topologies.
- Configure and maintain Oracle Global Load Balancer (GLB), Oracle Traffic Director, and hardware/software load balancers (F5, HAProxy) for WebLogic tier.
- Implement WebLogic whole-server migration, service migration, and singleton services for automatic failover.
- Design and execute DR runbooks for WebLogic/FMW environments including cross-site Data Guard integration, rsync-based replication, and OCI-based DR strategies.
- Manage and test failover/switchover procedures with documented RTO/RPO alignment.
Performance Engineering & Tuning
- Tune JVM parameters (heap sizing, garbage collection G1GC, ZGC), thread pools, work managers, and execute queues for optimal throughput.
- Monitor and optimize WebLogic performance using WLST, WLDF (WebLogic Diagnostic Framework), Flight Recorder, and thread dump analysis.
- Analyze and resolve stuck threads, memory leaks, connection pool exhaustion, and session management issues.
- Conduct capacity planning sizing WebLogic domains, JVM instances, and cluster node counts based on workload profiling.
- Integrate with enterprise monitoring stacks (Prometheus, Grafana, OEM, Datadog) for real-time WebLogic and FMW health observability.
Patching & Lifecycle Management
- Plan and execute WebLogic and Fusion Middleware patching (CPU/PSU/RU patches, one-off patches) using OPatch and BSU.
- Manage Oracle Middleware home structures, inventory management, and patch conflict resolution.
- Coordinate patching windows with application and database teams, ensuring rollback readiness.
- Execute WebLogic version upgrades (e.g., 12c to 14c) and Fusion Middleware stack upgrades with minimal downtime.
Cloud Migration & OCI
- Migrate WebLogic and Fusion Middleware workloads to OCI lift-and-shift to OCI Compute, re-platform to WebLogic for OCI (Marketplace/Terraform), or modernize to OKE.
- Provision and manage WebLogic on OCI using Marketplace images, Terraform stacks, and OCI Resource Manager.
- Administer Oracle WebLogic Suite for OCI, including integration with OCI Load Balancer, OCI DNS, and OCI WAF.
- Evaluate and implement containerization of WebLogic workloads using WebLogic Kubernetes Operator on OKE.
- Configure OCI-native monitoring and log aggregation for WebLogic workloads (OCI Logging, Logging Analytics, APM).
Automation & Tooling
- Develop and maintain automation using WLST (WebLogic Scripting Tool) for domain creation, configuration, deployment, and monitoring.
- Build Infrastructure as Code for WebLogic provisioning using Terraform and Ansible playbooks.
- Automate routine tasks log rotation, health checks, deployment pipelines, and certificate renewals.
- Administer Oracle Enterprise Manager (OEM) 13c Cloud Control for WebLogic/FMW target monitoring and compliance.
Required Skills & Experience
- 8–10 years of progressive experience in Oracle middleware administration with deep expertise in Oracle WebLogic Server (12c/14c).
- Expert-level knowledge of WebLogic domain architecture clustering, JMS, JDBC, security realms, Node Manager, and deployment models.
- Strong experience administering Oracle Fusion Middleware: SOA Suite, OSB, OHS, OAM/OIM, and EM FMWC.
- Proven experience supporting WebLogic/FMW tiers for at least two of: Oracle EBS, Siebel CRM, Oracle SOA/OSB/AIA, or Oracle BRM.
- Deep proficiency in JVM tuning (G1GC, ZGC, heap/metaspace sizing) and WebLogic performance diagnostics (WLDF, thread dumps, heap dumps).
- Strong experience with WebLogic patching, upgrade lifecycles, and Oracle Middleware home management.
- Hands-on experience migrating WebLogic workloads to OCI (Compute, Marketplace, OKE).
- Proficiency in WLST scripting and at least one automation language: Python, Bash, or Ansible.
- Working knowledge of Linux system administration (Oracle Linux / RHEL).
- Strong understanding of load balancing, SSL/TLS, DNS, and web-tier architecture.
- Excellent communication skills with the ability to produce clear operational documentation and engage with application and client stakeholders.
Preferred Skills
- Oracle certifications: Oracle WebLogic Server 12c/14c Certified Administrator, Oracle SOA Suite Certified Implementation Specialist, OCI Architect Associate.
- Experience with WebLogic Kubernetes Operator and containerized WebLogic deployments on OKE.
- Familiarity with Terraform (OCI provider) for middleware infrastructure automation.
- Experience with Oracle Traffic Director (OTD) and Oracle Global Load Balancer (GLB).
- Knowledge of Oracle Integration Cloud (OIC) and hybrid middleware integration patterns.
- Experience with enterprise monitoring stacks: Prometheus, Grafana, Datadog, or Splunk integrated with WebLogic/FMW.
- Familiarity with CI/CD pipelines for middleware deployments (Jenkins, GitLab, ArgoCD).
- Experience with Oracle HTTP Server (OHS) and mod_wl_ohs configuration.
- Knowledge of OAuth2/OIDC, SAML, and Oracle Access Manager (OAM) integration patterns.
- ITIL Foundation or equivalent service management awareness.
- Experience working in managed services, telecom, or consulting delivery environments.
At DXC Technology, we believe strong connections and community are key to our success. Our work model prioritizes in-person collaboration while offering flexibility to support wellbeing, productivity, individual work styles, and life circumstances. We’re committed to fostering an inclusive environment where everyone can thrive.
Recruitment fraud is a scheme in which fictitious job opportunities are offered to job seekers typically through online services, such as false websites, or through unsolicited emails claiming to be from the company. These emails may request recipients to provide personal information or to make payments as part of their illegitimate recruiting process. DXC does not make offers of employment via social media networks and DXC never asks for any money or payments from applicants at any point in the recruitment process, nor ask a job seeker to purchase IT or other equipment on our behalf. More information on employment scams is available here.
