
Computacenter AG & Co. oHG
Data Center Infrastructure Engineering for Telefonica Germany
Systems Engineer (Datacenter)
Relevance
Why this case matters
The case shows how problem understanding, responsibility, decisions, and implementation came together in this context.
Impact
Supported data center infrastructure across planning, build-out, operations, documentation, hardware support, and SLA-critical fault diagnosis.
What carries forward today
Modern AI and platform work needs operational understanding. This case shows experience with availability, documentation, and critical infrastructure.
Defensible proof
24/7
Operating context
Infrastructure work in a high-availability enterprise environment.
SLA
Critical fault diagnosis
Fast identification and resolution of business-critical issues.
Lifecycle
Infrastructure responsibility
Connected planning, build-out, expansion, operations, and documentation.
Where this experience creates value
- For companies that do not treat software delivery as separate from operations, infrastructure, and reliability.
- For teams where technical choices also need to hold up operationally.
Case context
Overview
Telefonica Germany's data center operations needed infrastructure lifecycle support from planning and build-out to expansion and ongoing operations. The work combined database-driven documentation, hardware support, and fault diagnosis.
My role covered the server landscape, fault diagnosis, and SLA-critical issue resolution. The database-supported documentation system made infrastructure status and performance metrics easier to inspect.
Responsibility
Activities
- Infrastructure Planning: Complete data center design, capacity planning, and expansion strategy development
- Construction & Deployment: Hands-on implementation of server infrastructure and network architecture
- Operations Management: 24/7 monitoring, maintenance, and optimization of data center operations
- Database Documentation: Comprehensive infrastructure documentation system for real-time status tracking
- Hardware Support: Full-spectrum server hardware support, diagnosis, and repair across entire landscape
- SLA Management: Rapid identification and resolution of business-critical issues to maintain service levels
Operating mode
Methodology
- Infrastructure Lifecycle: Planning, build-out, expansion, operations, and documentation treated as one responsibility
- Proactive Monitoring: Early detection and prevention of potential infrastructure issues
- Database-Driven Operations: Real-time documentation and status tracking for better visibility
- SLA-Oriented Support: Diagnosis, hardware work, and escalation aligned with business-critical service levels
Technical context
Technology stack
The tools are not the point by themselves. What matters is which system layers had to work together.
DevOps
10Architecture
1Practices
1Next step
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