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Tobias Schleiss-Andreassen

M.Sc. in Computer Science & Engineering (DTU)

Software Engineer & IT Consultant specializing in Fullstack Development, High-Performance Data Processing & Cybersecurity. Building scalable, secure, and data-driven digital solutions.

About

I hold an M.Sc. in Computer Science & Engineering from the Technical University of Denmark (DTU)with a strong foundation in software engineering, data systems, and cybersecurity.

In my Master's thesis, I developed a high-performance, memory-efficient pipeline in Python (Dask, OME-Zarr, GUI) for processing and visualizing terabyte-scale 3D brain imaging data on HPC systems. By designing a block-wise parallel processing architecture, I ensured predictable, bounded RAM usage regardless of total dataset size.

Alongside my academic focus on C#, Python, Next.js, and network security, I have hands-on experience in IT support from Roskilde University and run my own media business, Sandreassen Media. This combination gives me both the technical depth to build complex software and the strong communication skills needed for client-facing and consultancy roles.

I am currently seeking junior opportunities within Software Engineering, Fullstack Development, Data Engineering, System Integration, or IT Consulting.

Experience

  • 2023-2026

    Master’s Student

    My Master's degree at DTU provided a deep theoretical and practical foundation in high-performance computing, software development, scalable system architectures, and cybersecurity.

      • .NET
      • C#
      • Python
      • Fullstack
      • Software Development
      • TypeScript
    • 2019 - 2024

      IT Supporter

      Provided on-site and remote support to staff and students. Installed and configured computers, printers, and networks. Troubleshot Microsoft Office 365, Adobe Creative Suite, email systems, and internal applications while documenting solutions for future efficiency.

        • Office 365
        • Topdesk
      • 2023 - 2024

        Volunteer

        Captured and produced video content during one of Denmark’s most popular music festivals. Worked closely with a creative team in a fast-paced environment, delivering high-quality material under tight deadlines.

        • 2018 - Present

          Freelance Photographer & Media Producer

          Founded and managed my own media company, delivering photography, video production, and digital content for private clients and businesses. Working as a freelancer has taught me to work independently, manage projects from start to finish, and take responsibility for both technical execution and client satisfaction.

            • Final Cut Pro X
            • Adobe Creative Suite

          Projects