Senior WebSphere Middleware Administrator

Unisys Corporation; United States; On-site; USD 110,000 - 140,000; Full time

Job summary

Unisys Corporation is seeking a Senior WebSphere Middleware Administrator to oversee enterprise WebSphere platforms, security remediation, and automation initiatives. The role emphasizes maintaining secure, compliant, highly available middleware environments with automation to reduce manual effort.

The successful candidate will manage WebSphere Application Server, Liberty where applicable, and related stack components, while driving CI/CD integration and proactive performance tuning.

Qualifications

• 6–8 years of middleware administration experience focusing on WebSphere environments.
• Experience with security remediation, vulnerability management, and audit compliance.
• Experience developing automation to improve efficiency and reduce manual effort.

Responsibilities

• Administer and support WebSphere Application Server, IBM HTTP Server, and WebSphere Portal environments, including cell, node, cluster, and application server configuration.
• Support WebSphere Liberty environments where applicable and secondary platforms (Apache, Tomcat, IIS).
• Perform security remediation, patching, and compliance validation.
• Manage SSL/TLS, LDAP, Kerberos, SSO, and related security integrations.
• Design and maintain automation for administration and deployments using Shell, Python, and JACL/wsadmin.
• Support CI/CD deployments and automate health checks and reporting.
• Conduct JVM tuning, performance analysis, and root cause troubleshooting.
• Handle change and incident management and maintain audit trails.

Skills

Automation development

Security/compliance experience

Middleware administration

US security clearance readiness

Education

BA/BS degree

Tools

wsadmin scripting (JACL/Jython)

Shell scripting

Python

XML/HTML

LDAP/AD integration

Job description

What success looks like in this role:

Role Summary
The Senior WebSphere Middleware Administrator is responsible for the administration, configuration, maintenance, security remediation, compliance management, automation, troubleshooting, and operational support of enterprise IBM WebSphere platforms and supporting infrastructure. The role focuses on maintaining highly available, secure, and compliant environments while using automation to improve operational efficiency, reduce manual effort, and ensure consistency across middleware services.

Key Responsibilities

• Administer and support IBM WebSphere Application Server (traditional and Network Deployment), IBM HTTP Server, and WebSphere Portal environments, including cell, node, cluster, and application server configuration.
• Support WebSphere Liberty environments where applicable.
• Support secondary web platforms (Apache, Tomcat, IIS) 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 for WebSphere administration, patching, compliance validation, and operational support 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 where applicable.
• 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.

You will be successful in this role if you have:

Required Qualifications

• 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.

Required Technical Skills

• 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 Qualifications

• WebSphere Liberty experience
• Kafka, Zookeeper, Artifactory, WordPress, ServiceNow, or Remedy administration
• Ansible, Jenkins, Git, GitLab CI/CD, or similar tools
• Experience supporting security audits and compliance frameworks
• Working exposure to Oracle WebLogic (a plus, not required)

#LI-JV1

This role may require access to export-controlled commodities and technology. Therefore, to conform to U.S. export control regulations, applicant should be eligible for any required authorizations from the U.S. Government.

Unisys is proud to be an equal opportunity employer that considers all qualified applicants without regard to age, caste, citizenship, color, disability, family medical history, family status, ethnicity, gender, gender expression, gender identity, genetic information, marital status, national origin, parental status, pregnancy, race, religion, sex, sexual orientation, transgender status, veteran status or any other category protected by law.

This commitment includes our efforts to provide for all those who seek to express interest in employment the opportunity to participate without barriers. If you are a US job seeker unable to review the job opportunities herein, or cannot otherwise complete your expression of interest, without additional assistance and would like to discuss a request for reasonable accommodation, please contact our Global Recruiting organization at [e-mail] or alternatively Toll Free: 888-560-1782 (Prompt 4). US job seekers can find more information about Unisys' EEO commitment here.