L3 Senior Application Administrator – Linux - L3 - Support

L3 Senior Application Administrator – Linux - L3 - Support

Diebold Nixdorf
5-8 years
Not Specified

Job Description

Job Description
Expect more. Connect more. Be more at Diebold Nixdorf. Our teams automate, digitize, and transform the way more than 75 million people around the globe bank and shop in this hyper-connected, consumer-centric world. Join us in connecting people to commerce in this vital, rewarding role.
Position Overview
As a Senior Application Administrator you are working for DN customers from Finance, Banking, Retail and Petrol sector where you are providing the support and complex tasks to fulfil their expectations, as well as capable to deal with transaction files and job management. Your tasks are covering the creation and maintenance of solutions to keep SLA on expected levels, improving the qualitative areas and implementing innovated solution to improve delivery of service. You are also responsible for the problem management and development of the knowledge base.
Application administrator is providing support for proprietary J2EE applications, middleware containers and infrastructure used by these applications which are providing endpoint Monitoring, Software & Distribution, Inventory and complex business services management.
You are responsible for
  • Senior Application administrator for Diebold-Nixdorf proprietary applications - Linux OS & Java based - providing services to Banking, Petrol, Journaling, Cash management, Monitoring platform
  • 2nd - Level Support regarding ICT and Applications
  • 3rd - Level Support for specific areas as part of career path
  • Ability to work in normal shift with rotated on-call-duty within team for all Managed Service customers on global market (Europe, Americas, Asia regions)
  • Responsible for the Incident, change, request and problem management process for applications and application servers on daily basis with corporate toolset
  • Operation of middleware application containers (ActiveMQ, Apache WS, Tomcat, JBoss/Wildfly) Proprietary Diebold Nixdorf Payments Applications
  • Create innovated and automatized standardized solutions with top quality
  • Create IT solutions for customers on global market and bring ideas to improve satisfaction of consumers
  • Delivery of standard orders (special reports for customers, SQL queries, data collection and processing, etc.)
  • Control, Management and Troubleshooting of: Job's (Batch, Backup, Archive, Journals, Reports, Log's, …)
  • Delivery of non-standard orders and custom solutions for individual customers (sftp servers setup, event-filtered data collection, automated Software Distribution towards the endpoints, etc.)
  • Continuously address saving potential and drive for cost reductions
  • Always share (new) knowledge to colleagues. Frequently use the corporate knowledge base to find solutions and provide input for it
  • Understanding of DR and HA concepts
  • Active communication with developers regarding flaws, ideas on the application

  • Associates degree in IT Field or equivalent technical education
  • Solid understanding of network technologies, diagrams and topologies (LAN, WAN, protocols, ports …), IP addressing, TCP, UDP, DHCP, DNS, NAT, telnet, gateway
  • 5+ years of experience with Linux related technologies on intermediate level (install packages, patching, setup cron jobs, basic troubleshooting, manage users, ssh, scp, ssh tuneling,) LPIC or RHCSA certification is plus
  • Experience with middleware (installation, configuration and tuning) - apache http web server, Active MQ, Tomcat, JBoss/Wildfly
  • Understanding JDBC, connection to DB - tnsnames.ora 200+ lines scripts reading, writing, modification (SFTP file transfer, monitoring scripts, sed, grep, lsof, for, do - while loop, awk, sftp, ssh, scp, ...) in Perl / Bash / Python RHEL/Oracle Linux OS, LDAP
  • Understanding of horizontal and vertical clustering Oracle / PostgreSQL DB administration knowledge SQL experience - select, inset, update, transaction (commit / rollback)
  • Overview about Java and J2EE platform and troubleshooting - heap, garbage collector, OutOfMemmory
  • Application management and troubleshooting experience
  • Overview about GIT, JIRA, Confluence
  • Able to communicate in English language (speak, read, write)
  • Good communication skills - convince colleagues about new ideas, be able to communicate on good level under pressure
  • Excellent team cooperation - with mentoring approach

Preferred Qualifications
  • Detailed planning, organization, time management, and project management experience is a plus
  • Ability to mentor junior colleagues
  • Bachelor's degree in computer science, Information Technology or Electrical is a plus.
  • Experience in ICT services in large organization is a plus
  • Experience in ITSM according to ITIL is a plus
  • Willing to work on on-call-duty rotation shifts
  • Product knowledge of relevant industry is preferred

Brightest minds + technology and innovation + business transformation The people of Diebold Nixdorf are 23,000+ teammates of diverse talents and expertise in more than 130 countries, harnessing future technologies to deliver personalized, secure consumer experiences that connect people to commerce. Our culture is fueled by our values of collaboration, decisiveness, urgency, willingness to change, and accountability. -Diebold Nixdorf is an equal opportunity employer and we value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. ** To all recruitment agencies: Diebold Nixdorf does not accept agency resumes. Please do not forward resumes to our jobs alias, Diebold Nixdorf employees or any other organization location. Diebold Nixdorf is not responsible for any fees related to unsolicited resumes**

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