Oracle Middleware & Database Administrator

DecisivEdge•Markham, ON

1d•CA$115,000 - CA$145,000•Onsite

About The Position

DecisivEdge is seeking a talented and versatile Oracle Middleware & Database Administrator to join their team in Markham, Ontario. This role involves administering and supporting Oracle enterprise applications across various environments, including DEV, QA, UAT, and Production. The position requires hands-on experience with Oracle WebLogic Server, Fusion Middleware, Oracle databases, and integration technologies. The administrator will be responsible for deployments, upgrades, patching, environment refreshes, monitoring, performance tuning, and providing L2/L3 production support in a 24x7 environment. The role also includes managing security, compliance, and troubleshooting interface failures and middleware issues.

Requirements

Bachelor’s degree in computer science, Information Technology, or related field
5+ years of Oracle middleware/application administration experience
Strong experience with Azure Cloud infrastructure
Strong experience with Oracle Cloud Infrastructure (OCI)
Strong experience with Oracle Database 19c/23c
Strong experience with Oracle WebLogic Server 12c/14c
Strong experience with Linux/Unix Administration (Oracle Enterprise Linux 7.x/8.x)
Strong experience with Networking, Firewalls, ACL’s, Load balancer configuration and maintenance
Strong experience with Oracle Fusion Middleware (ADF & RCU)
Strong experience with Oracle JDK 1.8 / JDK 21
Strong experience with SQL & PL/SQL
Strong experience with Shell scripting
Strong experience with REST/SOAP web services
Strong experience with JDBC datasource configuration
Strong experience with SSL/TLS configuration
Experience supporting enterprise production environments and critical applications

Nice To Haves

Experience supporting Oracle OFSLL applications
Experience with Oracle RAC / Data Guard
Knowledge of Oracle HTTP Server (OHS), Apache Tomcat, IBM MQ/JMS
Experience with monitoring tools such as Splunk, AppDynamics, or Dynatrace
Experience with CI/CD pipelines, Jenkins, and Bitbucket
Experience in banking, lending, leasing, or financial services environments
Oracle certifications preferred
Experience supporting high-availability enterprise systems

Responsibilities

Administer and support Oracle enterprise applications across DEV, QA, UAT, and Production environments
Perform deployments, upgrades, patching, and environment refresh activities
Support Oracle WebLogic Server and Fusion Middleware environments
Configure and manage WebLogic Admin & Managed Servers, Node Manager, JDBC Data Sources, JMS Modules, ADF and RCU components
Monitor application health, batch processing, and loan servicing workflows
Perform JVM tuning, heap management, and garbage collection optimization
Install, configure, and upgrade Oracle database software and servers
Develop and execute comprehensive backup strategies and disaster recovery plans
Monitor system resource usage, identify bottlenecks, and optimize databases and SQL queries
Manage database user accounts, assign roles and privileges, and enforce data security and compliance policies
Configure and troubleshoot REST/SOAP web services
Manage Oracle HTTP Server (OHS) and reverse proxy configurations
Support integrations with banking systems, payment gateways, CRM platforms, and third-party vendors
Troubleshoot interface failures, middleware issues, and message queues
Support Oracle Database 19c/23c environments
Troubleshoot Oracle database connectivity and JDBC datasource issues
Support Oracle RAC and Data Guard environments
Monitor batch jobs, EOD/BOD processing, and interface transactions
Provide L2/L3 production support in a 24x7 environment
Perform root cause analysis and support incident/problem management activities
Configure SSL certificates, keystores, and truststores
Manage authentication, access control, and role-based permissions
Support audit and compliance initiatives including SOX controls