Senior Cybersecurity ConsultantSia · Rotterdam, South Holland, Netherlands

Senior Cybersecurity Consultant

🗓️ Posted 2026-09-14 Rotterdam, South Holland, Netherlands Full-time Hybrid ICT
💰 Salary Not shared 📊 Market 5,500 EUR–8,500 EUR/mo

About the Company

Sia is a next-generation, global management consulting group. Founded in 1999, we were born digital. Today our strategy and management capabilities are augmented by data science, enhanced by creativity and driven by responsibility. We're optimists for change and we help clients initiate, navigate and benefit from transformation. We believe optimism is a force multiplier, helping clients to mitigate downside and maximize opportunity. With expertise across a broad range of sectors and services, our 3,000 consultants serve clients worldwide from 48 locations in 19 countries. Our expertise delivers results. Our optimism transforms outcomes. Within Sia, you will integrate our Cybersecurity Business Unit. According to your skills and choice of expertise, you will work on one or more of our following offers - in consulting, implementation or auditing: - Cyber for Boards & Executives; Cyber Target Operating Model; Cyber M&A Due Diligence - Cyber Transformation ; Cyber Maturity Assessment & Rating ; Cyber Mentoring for Startups - CISOaaS DPOaaS BCMaaS CMaaS - Cyber Risk Management; Cyber Risk Assessment & Treatment; Cyber Risk Quantification - Third-Party Risk Management; Cyber Insider Risk; Cyber Risk Analytics & Reporting - Cyber Risk Review SaaS : C2R - Cyber Compliance Management : ISO 270xx, ISO 27701, ISO 223xx, BS 11200, LPM, NIS Directive, RGPD, SecNumCloud, RGS/PSSIE, SWIFT CSP, DSP2, HDS, PCI DSS, PA DSS, NIST - Cyber Assurance Framework - Data Privacy Assurance - OT SCADA ICS Security ; IoT IIoT WoT Security - Security Architecture ; Security Configuration - Infrastructure & Endpoint Protection ; Data Protection Technologies - IAM PAM IAG CIAM DAG - Cryptography Encryption - Threat hunting; Digital Forensics; Incident Response - Vulnerability and Patch Management - Penetration Testing Red Teaming - Wargaming and Crisis Management - IT Service Continuity Management; Business Continuity Management - Physical Security &

Requirements

  • ● You have a Master's degree engineering/computer science/statistics/econometrics.
  • ● You have 3-6 years relevant working experience within a consultancy firm with experience in cybersecurity projects.
  • ● You have a strong interest in data and AI-related topics, the ability to quickly build expertise in these areas, and you're excited about helping our clients seize the opportunities they offer.
  • ● Knowledge in Python, C++, Java, Ruby, Node, Go, and/or Power Shell.
  • ● Knowledge in IP Networks, Operating Systems (Unix / Linux, Windows and/or macOs), Cloud (AWS, Azure and/or GCP), Applications (Web Server, BDD, Middleware, etc) as well as Cryptography; knowledge in Blockchain would be a real plus.
  • ● You're a fast learner, communicative, flexible and entrepreneurial
  • ● English & Dutch communication and presentation skills.