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 10/30/2026full-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 AdministrationJVM Tuning and Performance Analysis

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

WebSphere PortalWsadmin Scripting (JACL and Jython)XMLHTMLSSL/TLS ManagementLDAP IntegrationActive DirectoryREST API IntegrationIBM DB2Performance Monitoring

Tools & Technologies

IBM HTTP ServerApacheTomcatIISCI/CD Deployment ProcessesEnterprise Automation Tools

Industry Keywords

Middleware AdministrationCompliance ValidationChange ManagementIncident ManagementService Restoration

Tech Stack

Tools & technologies

ApacheLinuxNode.jsPython

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, primarily in enterprise WebSphere environments
Experience in security remediation, vulnerability management, and audit compliance
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, and 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, and security hardening
REST API integration, task scheduling, and operational scripting
IBM DB2 and database connectivity/data source configuration
JVM tuning, monitoring, and performance analysis
Working knowledge of Apache, Tomcat, and IIS