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Søren Døssing

Søren Døssing

OT Security Architect looking for new challenges

Borgergade 90, Glejbjerg, Vejen, DK, 6752
+45 93935235
Danish, English

Background


About

About

With more than 15 years of experience in IT, and over a decade in professional roles across critical infrastructure, I’ve built and secured platforms that support some of the most vital systems in the energy sector.
Most recently, I’ve worked as an Infrastructure Solution Architect on Energinet's Platform Engineering program, helping design and implement a component-based IT platform aligned with zero-trust principles and security by design.

My background spans VMware, SQL, Windows, and Veeam Backup & Replication, along with strong experience in project and product management.
I’ve delivered solutions involving network segmentation, server migration, and stakeholder training.
I’m especially passionate about operational resilience, and I enjoy tackling the unique cybersecurity challenges facing the energy industry today.

I thrive in agile teams where complex problems meet real-world impact, and where secure, scalable infrastructure makes all the difference.

Work Experience

Work Experience

  • Senior Consultant, Opoura A/S

    Jan, 2024 - Present

    Working as a Senior Infrastructure and Cybersecurity Consultant focused on critical infrastructure and OT security. Contributed to Energinet’s Platform Engineering program by designing secure, scalable infrastructure aligned with zero-trust and security-by-design principles. Delivering solutions for backup, GRC, and risk-based architecture across highly regulated sectors.

    • Infrastructure Solution Architect on Energinet's OT Platform Engineering team

    • Designed and implemented backup strategies and restore plans for OT/IT environments

    • Worked with GRC and translated NIS2 and IEC 62443 requirements into operational controls

    • Implemented resilient, component-based platform architecture from the ground up

  • OT Security Architect, Semco Maritime

    Jan, 2023 - Mar, 20241 year 2 months

    Developing OT Security solutions and handling OT Security GRC

  • Systems Consultant, Det Faglige Hus

    Oct, 2022 - Dec, 20223 months

    Securely managing, installing, upgrading Oracle SQL, Oracle JBOSS and MSSQL and their backups

  • Systems Engineer, Siemens Gamesa Renewable Energy

    Nov, 2019 - Sep, 20222 years 10 months

    Developing Cybersecurity solutions on Siemens Gamesa MySite360
    https://www.siemensgamesa.com/products-and-services/service-wind/maintenance/mysite360

  • Database Administrator, Solar Danmark A/S

    Jun, 2018 - Oct, 20191 year 4 months

    Database Administrator (DBA) Microsoft SQL Server
    Microsoft SQL Server Database Administrator
    Responsible for more than 100 SQL Servers and 2000 MSSQL databases.
    Maintenance, deployment, updates and patches.
    Worked with colleagues on supporting the Webshop, troubleshooting and optimizing T-SQL code, database, index issues, etc.
    Migrated multiple servers from old versions and old Windows OS, to newest OS and SQL release.

  • SCADA IT System Administrator, Siemens Gamesa Renewable Energy

    Sep, 2015 - May, 20182 years 8 months

    OT/IT System Administration
    Administrating and building a full monitoring solution with NetIQ Appmanager.
    SQL Server administration and Database administration.
    T-SQL creation, scripts, views, stored procedures etc.
    L2/L3 Support on VMware, SAN, Windows Server solutions.

  • Service Technician, Gunnebo Nordic A/S

    Nov, 2007 - Aug, 20157 years 9 months

    I installed and serviced SafePay in most of Denmark. Both in-store cash control and back-office control systems. Great experience with embedded controllers, setting up Linux, installing and updating back-office systems on Windows and SQL - MSSQL and PostgreSQL.
    I installed and serviced in-store POS Systems aswell as back-office POS Systems.
    Worked as Systems Administrator on internal applications, servers and PCs.
    Created work instructions and installation guides.

  • Eventassistent, Montdor [creative agency]

    Jan, 2007 - Sep, 20078 months

    Worked as an Event assistant on bigger events, concerts and festivals in Denmark. Setting up stages, bars, lights, sounds etc.

  • Eventassistent, Prime A/S

    Jun, 2006 - Dec, 20066 months

    Worked as an Event assistant on bigger events, concerts and festivals in Denmark. Setting up stages, bars, lights, sounds etc.

  • Eventassistent, KIA Import Denmark

    Jun, 2005 - Jun, 20061 year

    Worked as an Event assistant on promotion events and Cars shows in Denmark. Setting up stands, tents, booths etc. with Cars, banners, lights etc.
    Transported Cars to and from different vendors to and from events in Denmark.
    Maintenance of Cars at the events, cleaning and setting up information etc.
    Worked as promoter on events giving details on Cars.

Projects Experience

Projects Experience

  • OT Platform, Energinet, Energinet

    Jan, 2024 - Present

    Designed and implemented a highly available OT infrastructure from scratch as part of Energinet's platform engineering program. Delivered backup architecture, hypervisor environments, and contributed to cross-functional architecture alignment for scalability and resilience.

  • Offshore OT Infrastructure, Semco Maritime, Semco Maritime

    Jan, 2023 - Present

    Developed, configured, and documented OT infrastructure (VMware, Cisco, Microsoft) for offshore platform projects. Also worked with Governance, Risk, and Compliance (GRC) by developing and auditing OT security processes.

  • Backup Modernization, Siemens Gamesa, Siemens Gamesa

    Jan, 2021 - Present

    Replaced an outdated manual backup system with a modern solution. Designed PoC, performed testing, and created vendor matrix. Implemented, documented, and deployed the selected solution.

  • Hyper Converged Infrastructure Migration, Siemens Gamesa, Siemens Gamesa

    Jun, 2020 - Present

    Migrated legacy SAN infrastructure to modern HCI solutions. Built PoC, performance tested hypervisors, and deployed a documented, scalable HCI platform.

  • OT Server Migration, Siemens Gamesa, Siemens Gamesa

    Sep, 2019 - Present

    Planned and led the migration of OT infrastructure to a new global datacenter following a company merger. Repurposed the old environment as a test platform.

Skills

Skills

  • CyberSecurity

    Backup Solutions

    Veeam

    Access Control

    Network Segmentation

    Physical Security

    GRC

  • Microsoft Products

    Windows Server 2003-2022

    Microsoft SQL Server

    Active Directory

    IIS

    Windows Firewall

    Microsoft Office

    Windows XP - 11

  • SQL

    T-SQL

    MSSQL

    Optimizing SQL

    Writing SQL

    SSIS

    SSRS

    Index optimizing

  • Computer Hardware

    HPE

    Dell SAN

    VMWare

    Disk configuration

    Electronics

    Cisco

    Ubiquiti

  • Business Understanding

    Key Account Management

    Change Management

    L3 Support

  • Networking

    CCNA Security

    CCNA

    CCNP

    CCDP Wireless

  • Coding

    C#

    Powershell

    JSON

    VBS

    Markdown

  • Infrastructure & Architecture

    Platform Engineering

    Zero Trust

    Security by Design

    Infrastructure Design

    Component-based Architecture

  • Governance & Risk

    NIS2

    IEC 62443

    GRC

    BIA

    Compliance

    Policy Design

  • Backup & Resilience

    Veeam

    Backup Strategy

    Restore Planning

    Disaster Recovery

    Operational Resilience

Education

Education

  • Akademiuddannelse i ledelse, , EA Dania

    Aug, 2022 - Oct, 2022

    Projektledelse

  • SQL Programmering, , SuperUsers a/s

    Dec, 2017 - Dec, 2018

  • Information Technology, Datatekniker, Syddansk Erhvervsskole

    Dec, 2008 - Dec, 2013

    12
  • Tech, Gymnasium, HTX Horsens

    Dec, 2003 - Dec, 2007

Volunteer Work

Volunteer Work

  • Bartender, Samsø Festival

    Jul, 2019 - Present

    Frivillig i baren 'Garagen'

References

References

  • Simon Lausten

    Søren er en aktiv hjælp på et hold.
    Han arbejder professionelt og forstår sig på de mennesker omkring ham.
    Hans meget stærke sider, er hans vilje til at sætte sig ind i en ting / et problem og ikke give slip, indtil problemet er løst.
    Søren har stor viden inden for hardware samt sikkerheds løsninger.