Senior WebSphere Middleware Administrator

Unisys; Norwich (CT); On-site; USD 120,000 - 150,000; Full time

Job summary

Unisys seeks a Senior WebSphere Middleware Administrator to lead administration, configuration, and operational support of enterprise WebSphere platforms. You will automate deployments, manage security controls, and ensure high availability across Linux and Windows servers.

Strong scripting in Shell and Python is required, with experience in CI/CD and performance tuning. The role emphasizes vulnerability remediation, patching, and audit compliance, plus collaboration with security and operations

Qualifications

• BA/BS degree or equivalent with 6+ years of middleware administration experience.
• Experience administering IBM WebSphere environments in enterprise settings.
• Security remediation, vulnerability management, and audit/compliance experience.

Responsibilities

• Administer and support IBM WebSphere AS, HTTP Server, and Portal environments, including clusters and nodes.
• Perform security remediation, patching, and compliance validation; manage certificates and LDAP/AD integration.
• Develop automation for administration, patching, and health checks using Shell, Python, and JACL/wsadmin.
• Support CI/CD processes and enterprise automation tools; monitor performance and perform RCA.

Skills

WebSphere

IBM HTTP Server

WebSphere Portal wsadmin

Shell

Python

XML

HTML

Awk

Sed

Curl

Linux administration

LDAP/AD/SSO/TLS security

JVM tuning

Apache/Tomcat/IIS

Education

BA/BS degree

Tools

WSAdmin/JACL/Jython

Python

Ansible

Jenkins

Git/GitLab CI/CD

Job description

What success looks like in this role: 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.

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)

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.

Unisys is a global technology solutions company that powers breakthroughs for the world's leading organizations. Our solutions - cloud, AI, digital workplace, logistics and enterprise computing - help our clients challenge the status quo and unlock their full potential. To learn how we have been helping clients push what's possible for more than 150 years, visit unisys.com and follow us on LinkedIn. https://www.unisys.com/unisys-legal/recruiting

Notice for U.S. Applicants: Unisys is an Equal Opportunity Employer - Minorities/ Females/ Veterans/ Individuals with Disabilities/ Sexual Orientation/ Gender Identity