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Hi there! I'm Rex Treurniet.

Freelance Business Analyst & Incident Manager

Discover My Services

About Me

I’m a driven freelance business analyst and incident manager who enjoys viewing the bigger picture by analysing the details, allowing me to easily get to the core of a problem or challenge. The insights I gain from this allow me to advise and improve on existing business processes, making me add value to the organisation.

By mixing the company’s objectives with the internal stakeholders’ wishes, I come to the best solution for any challenge I find in my path while still respecting the company’s architecture landscape. My experience in the Agile way of working also complements that.

I’m adept in translating business requests to functional requirements while taking current processes and possible improvements into account, managing incidents, and supporting developers as a sparring partner. My experience with several different technology platforms allows me to quickly pick up on the inner workings of any program or system.

My open nature and natural ease with which I communicate with all levels within an organisation allow me to easily make contact with people from different backgrounds and ages. I am multicultural and quickly see how people are put together.

Rex Treurniet - Professional Portrait Placeholder

Work Experience

Nov 2023 - Jan 2026

Compliance Officer

Tilaa

Maintained and reviewed policies aligned with ISO 27001, ISO 9001, and PCI DSS. Successfully coordinated internal and external audits, achieving recertification. Redesigned employee onboarding workflows and strengthened the ISMS-framework.

Jul 2023 - Jan 2026

Support Engineer

Tilaa

Provided technical support for VPS environments (Linux and Windows Server), networking, storage, and container-based services. Introduced an Experience Level Agreement (XLA) framework and significantly reduced ticket resolution times.

May 2018 - Jul 2022

Information Management Specialist

DLL

Supported primary processes through business analysis, system maintenance, and project management. Managed the rollout of digital projects including a Mobile App and European Partner Portal. Streamlined front-office system setups, saving costs and boosting productivity.

Mar 2018 - May 2018

Customer Due Diligence Analyst

Freo

Identified and researched financial and legal risks to prevent fraud and unjust usage of financial assets by checking and updating customer data.

Oct 2014 - Aug 2015

Project Lead & Backoffice Employee

KPN

Handled customer inquiries, processed orders, and provided administrative and IT troubleshooting assistance. Led a project to optimize the feedback tool for the KSD Backoffice.

Technical Knowledge & Skills

Operating Systems

LinuxFedora 43 KDEAlmaLinux 9ArchUbuntuWindowsWindows ServerMac-OS

Methodologies

SAFeSCRUMITILLeanBPMNUMLArchiMate

Programming Languages

C (Arduino)C#ASP.NETPL/SQLT-SQLVBA

Software & Infrastructure

KVMKubernetes & MiniKubeDockerGrafanaNagiosGoogle Cloud + FirebaseJira & ConfluenceSQL ServerPowerBI

My Services

Business Analysis

I adeptly transform complex data into actionable insights, driving strategic decisions, translating business requests to functional requirements, and optimizing processes with precision.

Incident Management

Experienced in monitoring platform performance, investigating complex incidents, coordinating internal and external audits, and guiding technical teams toward rapid resolutions.

Compliance

Ensuring organizational security and standards by maintaining policies aligned with ISO 27001, ISO 9001, and PCI DSS. Experienced in coordinating audits and strengthening ISMS frameworks.

Personal Interests

In my free time, I like to keep myself occupied by playing my piano or playing boardgames and tabletop RPG's like Dungeons and Dragons. I especially love the collaboration and creative aspects of playing these games together with friends.

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Download My CV

For a comprehensive overview of my skills, experience, and qualifications, please download my CV.

Download CV

Get In Touch

If you'd like to discuss a project or learn more about how I can help your organisation, please feel free to reach out.