Dirk Killebrew

Implemented process improvements to streamline build pipelines and administered cybersecurity controls (IAM, WAF, STIGs) while managing middleware (WebSphere, WebLogic, JBoss) and Linux/Kubernetes infrastructure for federal clients.

Improved build processes and created deployment components to support continuous delivery for Boeing applications while administering middleware stacks (WebSphere, WebLogic, JBoss) and application deployments.

Planned and implemented enterprise backup and STIG remediation automation, managed global Linux estate and middleware (WebSphere, WebLogic, JBoss, Tomcat), and delivered patching and orchestration using Ansible.

Developed enterprise cybersecurity protocols and automated detection/response workflows, led OS hardening and mass OS upgrades, and implemented monitoring and patch management across Linux and AIX environments.

Collaborated with development and infra teams to secure Linux systems and middleware, implemented DevOps security practices, containerized applications, and improved performance and logging with ELK.

Implemented security monitoring with Splunk and SCOM, managed cloud security on Azure, and administered middleware (WebLogic, WebSphere) and cross-platform servers with a focus on incident response and resilience.

Upgraded critical middleware and CI components and implemented secure Azure VM provisioning, backups, and vulnerability remediation while improving network cipher and TLS posture.

Managed Linux and Windows security, automated middleware tasks with Ansible, administered cloud migrations to Azure/AWS, and conducted vulnerability scanning with Nessus and Retina.

Secured Linux and Windows systems, automated WebLogic/WebSphere tasks with Ansible, managed backups and SAN, and implemented monitoring (Nagios) for security alerting.

Secured and administered Atlassian suite, managed SIEM tooling with Splunk/SCOM, enforced RHEL patching via Satellite, and automated configuration management using Puppet/SIMP.

Secured Atlassian applications in PROD/DEV, performed Linux hardening and patch management, and administered Oracle SOA with a focus on middleware security and automation.

Administered and secured Atlassian suite and RHEL systems, implemented security configs and audits, and enforced configuration management and patch compliance using Puppet and RHEL Satellite.

Secured and automated middleware and cloud systems, provided enterprise monitoring with Bladelogic/RHEL Satellite/Nagios, and led special cybersecurity projects across middleware and cloud platforms.

Led patching via BladeLogic, administered Atlassian apps, provisioned and monitored AWS servers, and delivered middleware (Tomcat) installations on RHEL/Ubuntu cloud instances.

Provided cleared IT support for Dept. of Education, secured Apache/Tomcat to CIS standards, migrated infrastructure to cloud, and automated tasks with Java/Python.

Provided security and troubleshooting for application/server environments across PROD/QA/UAT, automated tasks with shell/Java/Python, and administered middleware and cloud solutions.

Delivered WebLogic Admin I & II training nationwide, created and improved course materials, and provided onsite mentoring as a subject matter expert.

Supported PROD/QA/UAT environments, performed server updates and code drops, and automated deployments using Puppet while administering Unix/Linux middleware stacks.

Upgraded Subversion, supported production Windows and Linux servers, automated tasks with shell and PowerShell, and advised on F5 load balancer implementations and WebLogic training.

Recovered and modernized Marta Signpost systems, developed custom Python/Java applications, performed proactive hardening across Unix platforms and led upgrades to RHEL5.

Troubleshot application server environments, performed server updates and code drops, and automated tasks with shell, Perl, and PowerShell across Unix/Linux middleware stacks.

Built environments and supported prod/qa/uat/test, provisioned SVN for developers, and administered middleware (WebLogic, JBoss, WebSphere) on AIX and RHEL platforms.

Built and supported PROD/QA/UAT environments, led WebLogic migrations and WLST automation, tuned JVMs, mentored offshore teams, and performed proactive OS hardening.

Maintained a 200-instance WebLogic/SOA environment, supported Oracle Grid/Coherence, and collaborated with DBAs to diagnose and resolve production issues to ensure high availability.

Provided middleware expertise for sales and delivery, built demo systems, and installed/configured WebSphere products including MQ and Portal in mixed OS environments.

Managed middleware installs and continuous builds, administered certificates and code repositories, and automated deployments and troubleshooting across Apache, MySQL, WebLogic, JBoss, and WebSphere.

Managed SOA environments for US and Japan, administered WebLogic/WebSphere and databases, performed patching and Tibco/WebLogic configuration, and supported production systems.

Administered clustered Apache environments, automated tasks with advanced scripts, tuned J2EE application servers, and managed backups and VMware-hosted infrastructure.

Maintained Solaris enterprise environments, deployed applications on WebLogic/WebSphere/JBoss, implemented monitoring (Nagios), and supported UTCS train control systems.