[Hiring] Enterprise Architect @Deutsche Telekom IT Solutions Slovakia

Role Description

Enterprise Architect is responsible / accountable for development and optimization of IT architecture on Enterprise level. This role carries out analysis and evaluation of customer and technical requirements, develops implementation concepts, and holds accountability for implementation.

Enterprise Architect assumes responsibility for all interactions of components, systems, functions from the network to the point of interaction with the customer. In this context, this role designs a comprehensive vision and co-creates strategy taking into account high-level business requirements and implications, with a view to sustainability.

This role identifies and evaluates innovations in technology fields and is actively involved with implementation within the Group and in the industry.

WHAT WILL YOU DO?

• Assume end-to-end responsibility for the technical feasibility, consistency, and documentation of network solutions.
• Create, maintain, and continuously develop network landscapes covering data centers, workplace environments, cloud services, applications, external partners, and network or security providers.
• Document network architectures, system relationships, connectivity paths, data flows, routing dependencies, and security boundaries.
• Develop network solution designs in close collaboration with the responsible T-Systems units, customer teams, and external providers.
• Translate customer and project requirements into production-ready technical specifications, including:
  • IP addressing and subnet requirements
  • Routing and switching configurations
  • Firewall rules and security policies
  • VPN and external connectivity requirements
  • Load-balancer entries
  • DNS and other network-relevant parameters
• Create and maintain architecture and technical documentation using tools such as Microsoft Visio, DrawIO, Jira, and Confluence.
• Plan and design new external connections and integrations involving data centers, cloud platforms, workplace services, service providers, and external partners.
• Support the development and execution of network migration procedures, including current-state and target-state designs.
• Assess technical dependencies and risks associated with migrations, new integrations, and infrastructure changes.
• Provide technical leadership and coordination during the implementation of network solutions.
• Prepare implementation-ready change packages and ensure that changes are appropriately documented, approved, tested, and transferred into the relevant operational tools.
• Define standardization and automation use cases based on recurring network requirements and implementation patterns.
• Continuously develop the network architecture concept and integrate new customer, security, and operational requirements.
• Provide cross-cluster incident support for issues involving connectivity, routing, switching, firewall policies, VPNs, DNS, load balancing, or other network dependencies.
• Support a maximum reaction time of 30 minutes for cross-cluster incident-support requests.
• Analyze incidents using network landscapes, monitoring information, routing tables, firewall configurations, logs, and other technical data.
• Perform or coordinate connectivity tests, routing analysis, monitoring checks, and structured troubleshooting activities.
• Coordinate internal technical teams, external providers, and manufacturers during complex incidents.
• Act as a technical advisor when ownership of an incident, requirement, or network dependency is initially unclear.
• Contribute to root-cause analysis and provide technical input to Incident and Problem Management.
• Participate in customer consultations, project discussions, change meetings, and technical governance forums.
• Contribute to the continuous improvement of network designs, operational processes, documentation standards, and troubleshooting procedures.

Qualifications

• Completed degree in Computer Science, Business Information Systems, Engineering, or a comparable qualification with relevant professional experience.
• Several years of experience in enterprise network architecture, network engineering, network operations, or solution design.
• Strong experience in planning network concepts and creating detailed network designs.
• Senior-level knowledge of:
  • TCP/IP and related network protocols
  • Routing and switching
  • IP addressing and subnetting
  • DNS
  • Firewalls and network security
  • Site-to-site and client-to-site VPNs
  • Load balancing
  • Connectivity troubleshooting
• Experience with data-center networking, cloud connectivity, SD-WAN, and SASE technologies.
• Strong understanding of enterprise architectures, network architectures, and complex multi-provider environments.
• Experience translating customer requirements into technical designs and production-ready implementation instructions.
• Experienced with network migration planning and execution.
• Able to interpret monitoring information, routing tables, firewall rules, technical configurations, and network logs.
• Experience with preparing network designs, implementation plans, and change requests.
• Practical experience with Microsoft Visio, DrawIO, Jira, and Confluence.
• Understand ITIL-based Incident, Problem, Change, and Configuration Management.
• Experience working with enterprise ITSM platforms and structured ticket-based processes.
• Strong analytical and structured troubleshooting capabilities.
• Able to provide technical leadership across several teams without necessarily having disciplinary responsibility.
• Strong customer-facing communication and presentation skills.
• Able to manage conflicting priorities and coordinate stakeholders during technically complex or time-critical situations.
• Self-organized, outcome-oriented, and collaborative working style.

Requirements

• Basic software-development, scripting, or network-automation experience.
• Relevant certifications are an advantage, particularly:
  • Cisco Professional or equivalent network certification
  • Certified Information Systems Security Professional
  • ITIL Foundation
  • Additional certifications in SD-WAN, SASE, cloud networking, or network security

Benefits

• Financial benefits
• Benefits with focus on learning and development
• Benefits with focus on health and sport
• Benefits with focus on family and work-life balance
• Other benefits

Company Description

Our brand Deutsche Telekom IT Solutions Slovakia entered the life of Košice region in 2006 under the name of T-Systems Slovakia and has been inextricably linked with the region. We have grown from scratch to the second largest employer in the eastern part of the country with more than 3900 employees. Our goal is to proactively find new ways to improve and continuously transform into a company providing innovative information and communication technology services.