System Administrator (REF4322O)
System Administrator (REF4322O)
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Job Description
Tribe Voice & Messaging is responsible for the design development planning validation and operation of all voice and messaging platforms within DT Techniks fixed and mobile networks throughout their entire lifecycle. We provide innovative and reliable state-of-the-art services to our customers.
The TAS-GK (Telephony Application Server - Business Customers) environment provides a voice over ip platform for business and wholesale customer (SIP-Trunk 1.0 Wholesale .G). Currently are hosted more than 200000 business customers from all business segments (S/M/L/XL).
Applicants support the TAS-GK infrastructure team as application and system manager in the planning implementation and monitoring of changes in the Telco system environment in accordance with the regulations and specifications of Deutsche Telekom Technik.
- Plan estimate coordinate carry out changes in highest quality on network infrastructure components like Juniper Switches Broadcom VMware virtual machines and SUSE Linux OS
- Implement the continuous improvement / deployment of specific system module deliveries arriving via the CI/CD pipeline from the supplier
- Ensure that operational activities remain on time according to the agile roadmaps and quarterly plans
- Ensure the implementation of security and compliance requirements in the task field (hot fixing certificate upgrades)
- Carry out pre-change and post-change tests and derive necessary measures to ensure the production stability availability and security of applications/systems
- Maintain constant communication with managers staff and vendors to ensure proper implementation of changes
- Perform error analysis and troubleshooting sessions provide reports according to infrastructure monitoring via Zabbix Elastic Search and Kibana
- Prepare and administrate the own project repository and application within Magenta CI/CD repository
Qualifications :
Must have skills:
- Good working knowledge of the the IPv4 / IPv6 networking protocols / VLANs/ environments including the associated layers and protocols as well as security / access tools
- Sound knowledge of real-time IT-systems and IP based telecommunication concepts (Network protocols SIP / RTP tracing)
- Knowledge and experience of non-cloud-based virtualization technologies (Broadcom VMware vSphere vCenter VM)
- Familiar with pre-deployment and post-deployment testing in the Magentea CI/CD pipeline
- Familiar with monitoring tools (Zabbix) and performance analysis (Elastic Search Kibana)
- Familiar with ITIL Framework to effectively support Incident and Change Management processes of the Deutsche Telekom Technik GmbH
- Ability to manage incidents changes related to the above mentioned tools and problem resolution
- Participation in the on-call duties is expected
- You are accustomed to work in geographically distributed team using online tooling such as JIRA Confluence Wiki Sharepoint MS teams and alike
Nice to have skills:
- Technical degree or have completed vocational training in connection with multiple years of experience in the field of system engineering
- Familiar with infrastructure automation via JFrog Artifactory and AWX Ansible
- ITIL Framework service operation certification is an advantage
- Familiarity with backup & recovery concepts in the network infrastructure (e.g hardware; NetApp Juniper Lenovo Server or OS SUMA/ SLES)
- Knowledge and ideally practical experience in the areas of: cryptography PKI and authentication services are advantageous e.g. to be able to identify errors based on troubles with expired certificates
- German level B2 considered as an advantage
Additional Information :
Ideally you are/can:
- Proactive team player and willing to work in a cross functional agile environment
- Work independently as well as in a team
- Ready to learn
- Able to communicate in more than one language
* Please be informed that our remote working possibility is only available within Hungary due to European taxation regulation.
Remote Work :
No
Employment Type :
Full-time
Employment Type
Full-time
