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Carsten BlumCB

Carsten Blum

Fractional CTO | Projects and Product management

€499/day
Odense, DK
15+ years

Average response time: 1 hour

About Carsten

I’m a fractional CTO, SaaS strategist, and founder with over 20+ years of hands-on experience in IT. I specialize in bridging the gap between high-level strategy and tangible execution – leading remote-first teams, helping shape product visions, and delivering robust software platforms.

I’ve led successful product line revitalizations and company turnarounds, helping businesses modernize legacy systems, adopt cloud-native architectures, and scale efficiently using Linux, Docker, Kubernetes, and DevOps best practices. My leadership style is pragmatic, value-driven, and deeply technical – capable of both defining the vision and writing the first line of code if needed. I maintain a human perspective, because I understand that salary does not equate real motivation.

I’m also the original founder of Nureti.com, a modern SaaS platform for time tracking and invoicing, and ftpGrid.com, a scaleable highly available enterprise grade FTP SaaS.
Whether the challenge is technical debt, team structure, or go-to-market execution, I'm personally motivated by the challenge it self, and I’m driven by measurable progress and meaningful impact.
  • Danish

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Bankdata
    Senior Manager
    DIGITAL AND IT
    August 2023 - July 2025 (1 year and 11 months)
    Fredericia, Denmark
    Leading revitalization of mainframe and decentralized infrastructure in a modern fintech environment. Hands-on responsibility for mainframe platforms, enterprise networking, and cloud server hosting across a distributed banking architecture.

    • Reorganized and rebuilt the cloud server hosting department, improving stability and delivery
    • Conducted initial AWS migration assessment and defined future-state cloud roadmap
    • Led mainframe efficiency initiatives, reducing resource capping events to near zero
    • Implemented Cloudflare DDoS protection, securing digital banking access for 1.5M customers
    Digital Transformation Tech Lead Technical project management mainframe fintech
  • AutoSource Group Digital
    Interim Chief Technology Officer
    DIGITAL AND IT
    February 2023 - July 2023 (5 months)
    Odense, Denmark
    Served as interim CTO with full responsibility for development, infrastructure, and delivery. Led a cross-functional team of 25 across four departments and drove a successful transition from on premise hosting to a cloud-first setup.
    Most important accomplishment was introducing agile methodologies and SCRUM.
    Digital Transformation Team management Agile method Scrum Tech Lead
  • Vitec Software Group
    Chief Technology Officer
    DIGITAL AND IT
    January 2020 - January 2023 (3 years)
    Odense, Denmark
    • Drove full migration from legacy on-prem hosting to AWS cloud with Kubernetes
    • Re-architected SaaS platform for dynamic scalability, resolving critical performance bottlenecks
    • Designed and launched an entirely new product line, replacing a 25-year-old underperforming system
    • Introduced hybrid on-prem/offshore team structure, enabling exponential scalability of dev capacity
    SAAS Team management Digital Transformation AWS Scrum

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Education

  • Scaled Professional Scrum
    2018
    Scaled Professional Scrum
  • Professional Scrum Developer
    2017
    Professional Scrum Developer

Skill set

Categories