Senior Azure Architect (f/m/d)

A1 Telekom Austria AG | Cyber Security

Vollzeit | Teilweise Remote | Österreich

Customer-facing role | significant responsibility for both architecture and implementation

We are looking for a Senior Azure Architect (Security & Development) with a strong development background to design, implement and optimize Microsoft Sentinel–based security solutions for our enterprise customers.

Key Responsibilities

• Lead customer workshops and technical discovery sessions in German to understand business requirements, security needs, and existing Azure/on-prem environments.
• Design end-to-end Microsoft Sentinel architectures, including data connectors, Log Analytics workspaces, analytics rules, playbooks, workbooks, and role models.
• Develop and maintain Azure Logic Apps for security automation, enrichment, and integration with third-party systems (ticketing, ITSM, notification channels).
• Design and configure Security controls:
  • Microsoft Entra ID (Azure AD)
  • RBAC concepts and custom roles
  • Privileged Identity Management (PIM)
  • Managed identities, app registrations, and service principals
  • Conditional Access policies
• Advise customers on Azure licensing and cost models related to:
  • Microsoft Sentinel pricing and data ingestion
  • Defender plans and add-ons
  • Log Analytics retention and archive costs
  • Cost optimization strategies (data filtering, workspace strategy, commitment tiers, etc.).
• Design Azure monitoring and logging strategies:
  • Log Analytics workspace design, data ingestion strategy, and table structure
  • Diagnostic settings for Azure resources and security solutions
  • Metrics and alerting for Microsoft Sentinel, Logic Apps, and related services
  • Performance and cost optimization for large-scale environments
• Implement CI/CD pipelines (GitHub) for Sentinel content and infrastructure:
  • Version control of KQL, Logic Apps, workbooks, and configuration
  • Automated deployment across multiple independent client environments
  • Quality gates, code review processes, and testing integration
• Create and maintain technical documentation, runbooks, and architecture diagrams.

Your Profile

• Several years of proven hands-on Azure architecture expertise, ideally with a focus on security and monitoring
• Substantial experience working with Microsoft Sentinel or Azure Data Lake
• Strong, demonstrable development background (automation, scripting, integration)
• Experience in customer-facing roles: workshops, consulting, and solution design
• Ability to translate business requirements into secure, scalable technical solutions
• Fluent German (C1/C2): able to lead workshops, present architectures, and write documentation for German-speaking customers
• Good English (B2+): capable of working with international teams, reading and producing technical documentation, and participating in global projects

Technical Skills

• Microsoft Sentinel & KQL
• Azure Logic Apps & Integration
• Azure Security & Identity
• Azure Monitoring & Logging
• CI/CD & DevOps (GitHub)

Benefits & More

• Flexible working: Home office, remote work, flextime, sabbatical
• 26 vacation days & days off on December 24th and 31st
• Paid lunch break, canteen & vouchers
• Free A1 internet plus additional discounts for family & friends
• Company phone for personal use as well
• Internal job market at A1 & skill enhancement
• A1 Radl – Lease a bicycle or e-bike at affordable rates

For this position, we offer an annual gross salary starting at EUR80.000 (all-in, 40 hours/week).