Peter Kostelník

Experience

• 

  T-Systems Slovakia s.r.o.

  Nov 2014 - Nov 2019

  • Perform, coordinate and improve most complex activities (3rd level environment) needed to provide IT services and the supporting infrastructure in order to fulfill relevant KPI’s• Plan, implement and maintain a stable technical infrastructure to support organization’s business processes• Identify weaknesses in used processes and eliminate them following industry and internal standards.• Propose and perform regular inspections and improvement recommendations• Diagnose and resolve complex tickets or escalate complex tickets with direct/potential impact related to IT infrastructure• Restore normal service operation in case of Incident to fulfill SLA/OLA• Investigate the root cause of complex incidents and then initiate actions to improve or correct the situation• Evaluate, authorize, prioritize, plan, test, implement, document and review complex changes in controlled manner or escalate to higher authority• Assess actual performance of IT infrastructure against its predicted performance. Any deviations between the two should be understood and proactively remediated, with vendors if necessary• Create and maintain technical documentation to support IT service• Serve as technical lead to provide clear and comprehensive release and deployment plans• Deliver effective training plans and concepts to train other employees and ensure their fulfillment. Show less • Independently check, execute, solve (where appropriate), and creates tickets (problem ticket, change management ticket, incident, delivery order (DO)) in order to maintain service to customers according to given quality KPIs and internal processes (INM, CHM, PRM, DOM). • 2 nd and 3rd level environment.• Execute project and other deliverables in order to fulfil KPIs and management requests.• Smooth and uninterrupted operation of customers’ environment.• Conformity with the internal work instructions and process guidelines within T-Systems. • Follow the defined escalation standards in case of deviations. • Investigate the root cause of incidents and initiate actions to improve or correct the situation.• Record, evaluate, authorize, prioritize, plan, test, implement, document and review complex changes in controlled manner or escalate to higher authority. • Act as technical lead, solves and coordinates activities across related technologies.• Single Point of Contact for at least one customer or technology within supported service.• Manage transition and transformations as well as daily operations in a role of Platform SDM. • Controlling implementation plans describing all necessary steps to deliver successful migration of designed standard solution.• Participate on regular and/or irregular communication with colleagues in an international environment to ensure operational goals.• Participation on on-call duties , independent solving and troubleshooting of incidents and errors within defined expertise• Coordinates the use of internal technical support and vendor support to ensure troubleshooting, maintenance, and an efficient end-user support.• Train and participate on education of other employees.• Perform team specific non-technical tasks such as quality/ process/ reporting to support daily operation.• Create and maintain documentation.• Create, change and delete user accounts. Show less • 2nd level support• Remote control of servers using System Management tools.• Installing, upgrading, troubleshooting of monitoring agents.• Checking connectivity and settings of agents.• Solving of operational problems on the IBM Tivoli infrastructure.• Working on different types of operating systems - Windows, Linux, AIX, Solaris, HP-UX.• Creating scripts for automatization of daily routin tasks in BASH language.• Participation on project dealing with automatization processes and tasks on department.• Investigate the root cause of incidents and initiate actions to improve or correct the situation.• Participate on regular and/or irregular communication with colleagues in an international environment to ensure operational goals.• Participation on on-call duties, independent solving and troubleshooting of incidents and errors within defined expertise.• Train and participate on education of other employees.• Working with ITIL processes such as Incident, Change, Problem management. Show less • Check, execute, solve (where appropriate), and creates tickets (problem ticket, change management ticket, incident, delivery order (DO)) in order to maintain service to customers according to given quality KPIs,• Execute project and other deliverables in order to fulfil KPIs and management requests with expected performance.• Independently execute elementary tickets to provide service according to KPIs,• Install, configure, maintain, administrate and provide 1st and 2nd level support for Systems Management software,• Maintain and implement standard & nonstandard Monitoring solutions of OS, APP, MW and DB. Show less

  • ICT Engineer

    Jun 2018 - Nov 2019

  • ICT Administrator III

    Mar 2017 - May 2018

  • ICT Administrator II

    Aug 2015 - Feb 2017

  • Junior System Administrator

    Nov 2014 - Aug 2015
• 

  Eleveo

  Dec 2019 - now

  Senior DevOps Engineer

  • Develop and implement instrumentation for monitoring health and availability of services deployed in Cloud environment including fault detection, alerting, triage and recovery (automated and manual)• Cloud operations administrator responsible for deployed infrasctructure by DevOps team• Maintain and improve the Continuous Delivery / Continuous Integration pipeline• Build and manage the IT infrastructure for development team, support them and help them achieve their goal• Participation on infrastructure improvements and execution of stability process• Concurrently with this cloud service and online monitoring, set up and deploy the changes provided by development team Show less