Service Owner IT Security

Project overview

Service Owner IT Security

For our client, a leading company in the defense sector, we are looking for an experienced Service Owner IT Security to take strategic and operational responsibility for IT security services throughout the entire service lifecycle.

Framework Conditions

• Location: Düsseldorf
• Duration: 01.12.2026
• 30.06.2027 (extension possible)
• Utilization: 40 hours/week
• Language: German

Responsibilities

• End-to-end responsibility for defined IT security services throughout the entire service lifecycle (strategy, design, transition, operation, and continuous improvement)
• Further development and management of the responsible security service portfolio, including roadmap, scope of services, and delivery model
• Ensuring service quality, availability, performance, compliance, and costs according to defined SLAs
• Technical management of internal and external service providers, including escalation and performance management
• Prioritization and management of requirements in demand and service portfolio management
• Responsibility for budget, license, and economic efficiency management of security services
• Ensuring regulatory, legal, and internal security requirements
• Definition and monitoring of relevant KPIs to measure service quality, maturity, and customer satisfaction
• Initiation and implementation of improvement measures within the IT security landscape

Requirements

• Completed degree in Computer Science, Business Informatics, or comparable qualification with a focus on IT Security
• Several years of professional experience in the IT security environment
• Very good knowledge of IT Service Management
• Experience along the service lifecycle (Service Design, Service Operations, Continual Service Improvement)
• Profound understanding of modern IT security architectures and security controls
• Experience in provider, contract, and SLA management
• Experience in managing external service providers
• Experience in budget, cost, and performance management of IT services
• Very good knowledge of ITIL v3/v4 and ISO 20000
• Very good German language skills

Nice to have

SThree_Germany is acting as an Employment Business in relation to this vacancy.

• Experience in Security Operations environment
• Knowledge in Detection & Response
• Experience with Infrastructure Protection
• Know-how in Identity & Access Management (IAM)
• Knowledge in Security Engineering
• Certifications or practical experience in the ISO 27001 environment

Project details

• Start: 2026-12
• Remote: onsite
• Location: Düsseldorf, Deutschland, DE
• Languages: German