Joost van der Locht

Sr. Cybersecurity Consultant / Manager Cyber Defense | Guiding organizations to cyber resilience by developing cyber defense strategies, building future-ready SOCs/CERTs/CSIRTs, and implementing IT/OT security solutions.

Brabantine City Row

About

๐˜”๐˜ข๐˜ด๐˜ต๐˜ฆ๐˜ณ๐˜ช๐˜ฏ๐˜จ ๐˜ด๐˜ฆ๐˜ค๐˜ถ๐˜ณ๐˜ช๐˜ต๐˜บ, ๐˜ฃ๐˜ถ๐˜ช๐˜ญ๐˜ฅ๐˜ช๐˜ฏ๐˜จ ๐˜ณ๐˜ฆ๐˜ด๐˜ช๐˜ญ๐˜ช๐˜ฆ๐˜ฏ๐˜ค๐˜ฆ โ€” ๐˜ด๐˜ฉ๐˜ข๐˜ฑ๐˜ช๐˜ฏ๐˜จ ๐˜ต๐˜ฉ๐˜ฆ ๐˜ง๐˜ถ๐˜ต๐˜ถ๐˜ณ๐˜ฆ ๐˜ฐ๐˜ง ๐˜š๐˜–๐˜Š๐˜ด ๐˜ข๐˜ฏ๐˜ฅ ๐˜ค๐˜บ๐˜ฃ๐˜ฆ๐˜ณ ๐˜ฅ๐˜ฆ๐˜ง๐˜ฆ๐˜ฏ๐˜ด๐˜ฆ I am a Senior Cybersecurity Consultant and Manager Cyber Defense with a proven track record of helping organizations achieve and strengthen their cyber resilience in an evolving threat landscape. My expertise spans developing robust cyber defense strategies, designing and optimizing future-ready Security Operations Centers (SOC), Cyber Security Incident Response Teams (CIRT/CERT), and implementing integrated IT/OT security solutions. I combine strategic vision with hands-on expertise, guiding clients through complex security challenges and translating evolving threats into innovative, business-aligned solutions. By working closely with senior stakeholders and technical teams, I deliver measurable security outcomes while fostering effective collaboration across cybersecurity services and the wider business. My focus is on enabling organizations to proactively detect and respond to threats earlier, build scalable and efficient capabilities, and secure both IT and OT environments for long-term cyber resilience. ๐—ง๐—ผ๐—ด๐—ฒ๐˜๐—ต๐—ฒ๐—ฟ, ๐˜„๐—ฒโ€™๐—ฟ๐—ฒ ๐˜€๐—ต๐—ฎ๐—ฝ๐—ถ๐—ป๐—ด ๐—ฟ๐—ฒ๐˜€๐—ถ๐—น๐—ถ๐—ฒ๐—ป๐˜, ๐—ฒ๐—ณ๐—ณ๐—ถ๐—ฐ๐—ถ๐—ฒ๐—ป๐˜, ๐—ฎ๐—ป๐—ฑ ๐—ณ๐˜‚๐˜๐˜‚๐—ฟ๐—ฒ-๐—ฝ๐—ฟ๐—ผ๐—ผ๐—ณ ๐˜€๐—ฒ๐—ฐ๐˜‚๐—ฟ๐—ถ๐˜๐˜† ๐—ผ๐—ฝ๐—ฒ๐—ฟ๐—ฎ๐˜๐—ถ๐—ผ๐—ป๐˜€ ๐—ณ๐—ผ๐—ฟ ๐˜๐—ผ๐—บ๐—ผ๐—ฟ๐—ฟ๐—ผ๐˜„โ€™๐˜€ ๐—ฐ๐—ต๐—ฎ๐—น๐—น๐—ฒ๐—ป๐—ด๐—ฒ๐˜€.

Experience

  • Lead Consultant Security Operations at UMC Utrecht
    Nov 2025 - Present ยท 8 mos

    Iโ€™m helping UMC Utrecht to improve their Security Operations capability and maturity.

  • Cybersecurity Consultant / Manager Cyber Defense at socmasters
    2022 - Present ยท 4 yrs 6 mos

  • Lead Consultant OT-SOC at NewCold
    Jan 2025 - Jul 2025 ยท 7 mos

    โ€ข Conducted a SOC capability and maturity assessment, delivering actionable insights for strategic improvement. โ€ข Architected the target operating model for the OT-SOC aligning with organizational and operational requirements to enable effective IT/OT convergence and security operations. โ€ข Developed a strategic roadmap for building and operationalizing the OT-SOC.

  • Head of Cyber Defense at Transavia
    2022 - 2024 ยท 2 yrs

    โ€ข Designed and delivered a target operating model (TOM) for the Security Operations Center (SOC), enabling scalable and efficient security operations. โ€ข Led and executed the full insourcing of the Detect and Response capability, building a fully operational SOC from the ground up. โ€ข Developed and initiated a SOC capability and maturity improvement plan, driving strategic enhancements to detection and response capabilities. โ€ข Built and structured the Cyber Defense Center team, introducing new functions such as the Center of Expertise (CoE) and Operational Security Support (OSS). โ€ข Established an enhanced Vulnerability Management program to proactively identify and mitigate security risks. โ€ข Oversaw daily operations of the Cyber Defense Center, including incident response, vulnerability and compliance management, SOC workflows, and threat intelligence. โ€ข Directed penetration testing initiatives to strengthen overall security posture and remediate identified vulnerabilities. โ€ข Provided strategic advisory to the CISO office, Cyber Security Program, and IT leadership on policies, technical architecture, and operational security improvements.

  • Global Director Security Operations Center at Arcadis
    2021 - 2022 ยท 1 yr

    โ€ข Led the development and continuous improvement of the global Security Operations Center (SOC), ensuring alignment with business and security objectives. โ€ข Directed 24/7 global SOC operations, overseeing penetration testing, vulnerability management, and the implementation of critical security processes and policies. โ€ข Mentored and developed a high-performing global team of security professionals, fostering technical excellence and operational efficiency. โ€ข Designed and delivered short- and long-term strategic roadmaps to advance SOC capabilities and maturity. โ€ข Strengthened relationships with global business and technology stakeholders, improving collaboration and security alignment across regions. โ€ข Managed supplier relationships with multiple external security partners to ensure service quality and accountability. โ€ข Led the global Computer Security Incident Response Team (CSIRT), coordinating complex incident investigations and response efforts.