Wyko ter Haar

Freelance Network Engineer / DevOps Engineer | Available Dec 2026 | Python | Automation | Cisco ACI | NGFW | F5 | Routing and Switching

Barendrecht, South Holland, Netherlands

About

I'm a Dutch and American (dual citizen) Network Engineer based in the Netherlands, passionate about the power of automation in the modern datacenter. Highly motivated, with over a decade of experience in building and maintaining the infrastructure of both Systems and Network divisions of the corporate environment. I have worked with project teams to deliver enterprise networks with diverse requirements across the world. Fluent in both Dutch and English and well equipped to collaborate with international teams in person or remotely.

Experience

  • Cisco ACI Subject Matter Expert (SME) at Centraal Orgaan opvang asielzoekers (COA)
    Sep 2025 - Present · 10 mos

  • Freelance (ZZP) Network Engineer at HighBit Solutions
    Oct 2019 - Present · 6 yrs 9 mos

  • DevOps Engineer at ING
    Mar 2021 - Sep 2025 · 4 yrs 7 mos

    ▪ Developed Python-based automation solutions for Cisco, PaloAlto, NSX and F5 using Azure DevOps ▪ Created extensive documentation for tooling and network design ▪ Held workshops to guide colleagues through new automation initiatives • Led workshops to introduce new automation initiatives and conducted ING Academy classes • Piloted AI-driven tooling in the workplace

  • Network Engineer at Conscia Nederland
    Oct 2020 - Mar 2021 · 6 mos

    • Led Cisco ACI projects for major Dutch hospitals, designing full network solutions • Brought projects from design to final implementation, ensuring seamless transitions • Utilized strong technical skills to replace legacy infrastructure with modern solutions

  • Senior Network Engineer at NTT
    Jan 2020 - Oct 2020 · 10 mos

    ▪ Led company-wide Cisco ACI micro-segmentation project ▪ Created extensive and detailed documentation ▪ Executed changes in a critical 24/7 work environment with zero tolerance for downtime ▪ Advised senior management and project staff on network design ▪ Worked with stringent cost restraints to implement effective new monitoring and logging ▪ Advised permanent staff on Checkpoint, F5, and LTE network questions