Administrator (m/f/d) Operation and Development of a Java/Web-Based Middleware Platform

Requirements

We look forward to your application, stating your availability and your hourly rate for remote and on-site assignments.

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• Language skills: Fluent German and good English skills
• Administration of IBM WebSphere Application Server for versions 8.5.5.x and 9.0.5.x: Installation, configuration, maintenance
• Administration of IBM Websphere Liberty from version *: Installation, configuration, maintenance
• Administration of IBM HTTP Server from version 9.0.5.x: Installation, configuration, maintenance
• Administration of Apache Tomcat Server from versions 9.0.x, 10.1.x, and 11.0.x, including command-line tools: Installation, configuration, maintenance
• Administration of Apache HTTPD Webserver version 2.4.x, including command-line tools: Installation, configuration, maintenance
• SSL/TLS certificate management, PKI: Installation, configuration
• Incident, Problem, Change, and Release Management: Ticket acceptance and processing according to ITIL in the tools Maximo and USU ITSM
• Development of scripts using bash, perl, python, wsadmin: Development, installation, configuration, maintenance
• TCP/IP, DNS, Routing, Load Balancer: Planning, configuration
• Directory services and IAM: Planning, configuration
• Handling Jira for task management: Ticket processing in the role of Developer
• Automation with Ansible: Development, installation, configuration
• Java Heap Dumps and Thread Dumps: Creation, analysis
• Cloud Stacks (VMware Cloud Foundation): Development and administration of deployments
• Cloud Stacks (Google Distributed Cloud Airgap): Development and administration of deployments (certificate)
• Independent administration/configuration/operation and support of middleware
• Development of scripts using bash, perl, jython, wsadmin
• TCP/IP, DNS, Routing, Load Balancer
• Directory services and IAM
• Cooperation with other departments and partners within the scope of Incident, Problem, Change, and Release Management processes
• Version control for central provision of scripts, automation objects
• Handling VADP environments (Citrix)
• Operating systems LINUX (RedHat, SLES) AIX Windows Server
• Java Heap Dumps and Thread Dumps
• Handling Cloud Stacks VMware Cloud Foundation

Project details

01/01/2027

End: 12/31/2029

Remote (95%), Bonn, Berlin

Support in the administration, second-level support, and further development of a middleware platform, including automation, deployment, and technical operation documentation.

Second Level Support and Administration of Middleware Products

Administrative and Documentation Services

Development Services

• Second Level Support for components from the MMP product portfolio
• Incident, Problem, Change, and Release Management
• Ticket processing in ticket tools Maximo, USU ITSM, and Jira
• Administration and configuration of products from the MMP product portfolio
• Installation of security patches and cumulative fixes
• Evaluation of advisories regarding patches to be installed
• Preparation, execution, and follow-up of deployments
• Automation of deployments
• Execution of WebSphere and Tomcat migrations
• Installation and configuration of digital certificates
• Execution of changes, adjustments, and operational optimization measures for the supported applications, adhering to specifications (e.g., Security)
• Technical troubleshooting, including problem resolution in cooperation with manufacturers
• Planning and execution of maintenance measures
• Definition of specifications for monitoring and supervision of applications
• Ensuring system compliance
• Software deployment according to the Clean Source approach (BSI) as part of system hardening measures
• Configuration and patch management with Ansible
• Analysis and evaluation of requirements for operating products of the MMP product portfolio
• Taking on sub-tasks in the creation and updating of operational concepts and manuals related to the MMP product portfolio
• Documentation of existing installation and patch frameworks (Linux, AIX, and Windows)
• Documentation of syntax and synopsis of self-developed operating commands and scripts
• Planning and processing of Maximo changes
• Development and adaptation of scripts and frameworks using BASH, PERL, Jython, Python, wsadmin
• Support in projects and setup of requested infrastructures using available built-in tools/frameworks
• Maintenance, optimization, and further development of the central MMP repository
• Start: 2027-01
• Duration: 36 Monate
• Remote: remote
• Location: Bonn, Berlin, Deutschland, DE
• Languages: German