Senior WebSphere Middleware Administrator

Unisys

. Administer and support IBM WebSphere Application Server, IBM HTTP Server, and WebSphere Portal environments, including cell, node, cluster, and application server configuration .

Posted 11/4/2026full-timeRemote • Connecticut • United StatesSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive experience in administering and supporting IBM WebSphere environments, including security remediation and automation solutions. Proficient in middleware administration, performance monitoring, and compliance validation.

Highest-signal resume keywords

IBM WebSphere Application Server AdministrationSecurity Remediation and Vulnerability ManagementAutomation Development Using Shell and PythonLinux and Windows Server AdministrationCI/CD Deployment Processes

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

WebSphere PortalWsadmin Scripting (JACL and Jython)SSL/TLS ManagementJVM Tuning and Performance AnalysisREST API IntegrationIBM DB2 ConnectivityActive Directory IntegrationLDAP ManagementSecurity HardeningApache, Tomcat, and IIS Support

Tools & Technologies

AnsibleJenkinsGitGitLab CI/CDKafkaZookeeperArtifactoryServiceNowRemedy

Industry Keywords

Middleware AdministrationCompliance ValidationChange ManagementIncident ManagementService Restoration

Tech Stack

Tools & technologies

AnsibleApacheJenkinsKafkaLinuxNode.jsOraclePythonServiceNowWordPressZookeeper

About the role

Key responsibilities & impact

Administer and support IBM WebSphere Application Server, IBM HTTP Server, and WebSphere Portal environments, including cell, node, cluster, and application server configuration
Support WebSphere Liberty environments where applicable
Support Apache, Tomcat, and IIS platforms as needed
Perform security remediation, vulnerability management, patching, fix pack and upgrade activities, and compliance validation
Manage SSL/TLS certificates, keystores, truststores, LDAP, Kerberos, Active Directory integration, SSO, and LTPA security
Administer Linux and Windows servers supporting middleware environments
Design, develop, and maintain automation using Shell, Python, and JACL/wsadmin scripting
Automate deployments, configuration updates, certificate management, reporting, and system health checks
Support CI/CD deployment processes and enterprise automation tools
Perform performance monitoring, JVM tuning, thread dump and heap dump analysis, troubleshooting, and root cause analysis
Execute change management, incident management, and service restoration activities
Maintain documentation, procedures, audit evidence, and compliance records

Requirements

What you’ll need

BA/BS degree and 6-8 years of relevant experience, or an equivalent combination of education and experience
6+ years of middleware administration experience, with a primary focus on enterprise WebSphere environments
Experience in security remediation, vulnerability management, and audit compliance
Demonstrated experience developing automation solutions that improve operational efficiency and reduce manual effort
Must be a US Citizen with ability to obtain a government security clearance
WebSphere Application Server, IBM HTTP Server, WebSphere Portal
wsadmin scripting (JACL and Jython), Shell, Python, XML, HTML, Awk, Sed, Curl
Linux (RHEL, SUSE), AIX, and Windows Server administration
SSL/TLS, LDAP, Active Directory, Kerberos, SSO, LTPA, security hardening
REST API integration, task scheduling, and operational scripting
IBM DB2 and general database connectivity/data source configuration
JVM tuning, monitoring, and performance analysis
Working knowledge of Apache, Tomcat, and IIS
Preferred: WebSphere Liberty experience
Preferred: Kafka, Zookeeper, Artifactory, WordPress, ServiceNow, or Remedy administration
Preferred: Ansible, Jenkins, Git, GitLab CI/CD, or similar tools
Preferred: Experience supporting security audits and compliance frameworks
Oracle WebLogic experience is a plus, not required
Applicant should be eligible for any required authorizations from the U.S. Government for access to export-controlled commodities and technology