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Sebastian GünderothSG

Sebastian Günderoth

Management Consultant | Interim Manager

€990/day
Köln, DE
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Sebastian

As an experienced manager and consultant with over 20 years of professional experience, I support companies in the successful transformation of organizations, processes, and business models.

My focus is on combining strategy and operational implementation: from the conception of new organizational and operating models, through change and transformation programs, to sustainable anchoring in structure, culture, and leadership.

I work as a sparring partner for management and project teams, with a clear focus on implementability, efficiency, and employee development. I am particularly familiar with complex, regulated, and scaling environments.
  • German

    Native or bilingual

  • English

    Fluent

Can work on-site
Köln (up to 50km)

Experience

  • Telekommunikationsdienstleister
    Setup Startup FTTH Installation
    TELECOMMUNICATIONS
    June 2024 - November 2025 (1 year and 5 months)
    Köln, Germany
    Establishment of a new company within a corporate group with the aim of developing a nationwide project service provider for fiber optic expansion, which is to be established as a recognized player in the market through rapid growth (150 employees within the first 12 to 18 months).
    • Setup of a sales organization with targeted acquisition of new customers for NE4 fiber optic expansion, calculation and negotiation of offers, and management of the sales pipeline
    • Setup of a recruiting, onboarding, and performance management process for targeted acquisition and qualification of career changers, who can quickly become productive through continuous development measures and whose skills are constantly expanded up to skilled worker (fiber optic installer)
    • Setup of an operational organization for the execution and management of nationwide expansion projects integrated into a scalable, efficient operational organization.
    Performance Management Sales General Management Project Management Recruiting
  • Telekommunikationsprovider
    Post-Merger Transformation at a Telecommunications Provider
    TELECOMMUNICATIONS
    January 2021 - June 2023 (2 years and 5 months)
    Köln, Germany
    Responsible for the strategic further development of the Field Service organization regarding service contracts, process optimization, implementation of new services, quality assurance of technical execution, and improvement of the customer journey. The Field Service organization processes approximately 2.0 million technician deployments nationwide per year.
    Successfully executed transformation for the outsourcing of fault resolution processes in wide area networks and the transformation of various business models into a digitized service organization. Responsible for adherence to the business case, concluding service provider contracts, and detailed planning and tracking of the handover.
    • Successful outsourcing of a network core competency for 7x24 service including associated external civil engineering with simultaneous internal staff reduction (50 million EUR per year and 220 FTE; realization of 8% savings) with a focus on service reliability and quality
    • Renewal of expiring contracts and implementation of new commercial mechanisms to counteract inflation and cost increases (volume 1.2 billion EUR)
    • Consolidation of the operational organization from two companies in Field Service
    Purchasing Change Management & Transformation Partner Management Outsourcing Process Management
  • Telekommunikationsprovider
    Digitalization of Field Service at a Telecommunications Provider
    TELECOMMUNICATIONS
    March 2016 - February 2018 (1 year and 11 months)
    Köln, Germany
    Responsible for the conception and adherence to the business case for the rollout of an optimized and digitized service organization (1.1 million technician deployments p.a.) with higher resource efficiency and 15% cost savings.
    • Digitalization of the E2E business model | Process modeling | Testing and acceptance
    • Ensuring compliance, co-determination, and data protection
    • Setup of an agile team for requirements and test management | Development of the operational concept
    • Transparent transformation: communication, training, onboarding, and change support
    • Rollout and cutover management to ensure 7x24 operational reliability
    Digital Transformation Project Management Partner Management Agile Software Development Process Management

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Education

  • Certified IT Business Manager
    VWA Stuttgart
    2010
    Certified IT Business Manager

Certifications

Skill set

Categories