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Carsten RösnerCR

Carsten Rösner

(Interim)(Fractional) CTO, Head of Product

€1,100/day
Winterberg, DE
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Carsten

Technology-oriented leader with over 25 years of experience in building, scaling, and transforming software solutions, including in regulated environments. Focus on developing core platforms and software products, digital identities, and integration solutions in the context of telematics infrastructure, secure authentication methods, or connected services. Long-standing responsibility for development organizations with over 80 employees and multi-million euro budgets, as well as consulting and reporting at C-level.
  • German

    Native or bilingual

  • English

    Fluent

Can work on-site
Winterberg (up to 50km), Düsseldorf (up to 50km)

Experience

  • opta data IT GmbH
    Enterprise Product Owner
    SOFTWARE PUBLISHING
    January 2024 - Today (2 years and 7 months)
    Essen, NW, Germany
    Product responsibility for the central platform "one" as a group-wide web-based customer center

    - Coordination of the integration of 20 group companies into the product platform
    - Derivation and management of a group-wide product strategy and roadmap in line with corporate goals
    - Prioritization and bundling of strategic requirements from the various group companies
    - Harmonization of different interests and moderation of complex decision-making processes at management level
    - Ensuring the technical and functional integration of the product into existing system landscapes, business processes, and business models
    - Establishment of transparent governance and decision-making structures for group-wide product development
    - Representation of the product towards internal and external stakeholders at management level (C-level)
    Product management Agile method Change Management CIAM Consulting
  • opta data IT GmbH
    Senior Development Manager
    SOFTWARE PUBLISHING
    January 2021 - December 2023 (2 years and 11 months)
    Essen, NW, Germany
    Overall responsibility for the establishment and further development of an interdisciplinary area of software development, quality assurance, and DevOps

    - including strategic personnel planning, management of recruiting, conducting interviews, and salary negotiations, as well as establishing structured onboarding and development processes
    - Functional and disciplinary leadership of the teams
    - Responsibility for budget planning, cost control, and economic goal achievement of the overall project, including checking and approving incoming invoices
    - Conception, introduction, and continuous further development of scalable agile working models (Scrum and Kanban) as well as their sustainable organizational anchoring
    - Management of product development in the role of Enterprise Product Owner and as technical and strategic advisor to management, including regular management briefings and decision-making basis
    - Development and advancement of managers within the department, especially team leads and lead developers
    - Establishment of a company-wide information security and quality management system
    - as well as successful preparation and execution of the initial ISO 27001 certification and preparation for C5 certification
    Product management CTO Change Management Leadership Development Digital Transformation
  • opta data IT Solutions GmbH
    Head of IT Department / CTO
    SOFTWARE PUBLISHING
    October 2018 - December 2020 (2 years and 2 months)
    Essen, NW, Germany
    Leadership and further development of a software development department

    - Consisting of Development, QA, DevOps, Design)
    - Personnel and budget responsibility > €4 million, 8 teams, 82 employees, 3 locations
    - Responsibility for the management, coordination, and successful implementation of complex IT projects and development processes.
    - Conception and design of modern software architectures as well as creation of detailed functional concepts.
    - Continuous optimization of development processes and introduction of future-oriented technologies and working methods.
    - Interface management between business departments and regular reporting to management.
    - Successful implementation of strategic initiatives, including the introduction of new software generations, organizational development, and employee development.

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Education

  • Work and Organizational Psychology
    Fernuniversität Hagen
  • Professional Software Architect (ISAQB)
    isaqb.org
    2020
    Professional Software Architect, ISAQB/PSA Professional Software

Skill set

Categories