OT Security Architect

Job Description

Our client, a fast growing global systems integrator and managed services provider, is looking for a OT Security Architect.

The primary responsibilities of the OT security architect are to:

  • serve as a recognized subject matter expert and thought leader with deep expertise in OT security area to perform specialized consulting engagements;
  • support the creation of multi-technology solutions across business and service units, acting in that sense as a subject matter expert in OT;
  • analyse business mission, vision, strategy, processes and needs of an organization to assist the client in defining a holistic OT strategy and solutions, acting in that sense as a specialized trusted advisor to the client.
After an initial familiarization with methodologies and approaches, the OT security business consultant will:
as specialized consultant:
  • translate OT security risks into business impact and propose required mitigation actions or recommendations to the client.
  • conduct consultative engagements, in a lead consultant or team member role, with clients to ensure the delivery of assessment services in security related to IACS/SCADA/OT.  The primary deliverables of these engagements, are mainly composed of an analysis of the client’s current situation, proposed solutions for the future together with OT roadmap and associated business cases;
  • perform process control network & security architecture reviews, network mapping and testing;
  • participate to the delivery of more complex consulting projects (executed in virtual team) ensuring that the quality delivered in the reports adheres to both Company and the client’s requirements;
  • ensure hand-over of engagement information and pull-through opportunities to internal stakeholders;
  • develop, support and maintain standardized consultative engagement templates, methodologies and OT security reference architecture in response to reoccurring client needs in his subject matter area;
  • perform business development and presales work for opportunities within his own domain;
  • act as a mentor for less experienced consultants or architects.
as a supportive solution architect in presales phase:
  • support, together with specialized subject matter colleagues or third parties, the creation of complex solutions focusing on security and covering all aspects of service, application and infrastructure components;
  • participate in the answer of complex RFI, RFQ and/or RFP including typically multiple technologies and/or Lines of Business;
  • participate in the elaboration and justification of complex business cases and/or customized pricing models;
as trusted advisor in a long-term relationship with clients:
  • understand the client’s business strategy, processes, services and roadmap and map these to OT architectures using multiple architectural views or models;
  • provide strategic advice for improvement and innovation on OT technologies and services based on his knowledge of recognized reference architecture and models;
  • closely collaborate with program manager and service delivery manager roles assigned to the client, to deliver state of the art services to guarantee and enhance the long-term relationship with the client;
  • work proactively with sales team and look for additional opportunities.


  • Bachelor at a minimum (Master strongly preferred).
  • Extensive experience with the following concepts/technologies: Cybersecurity reference architecture, segmentation, defense-in-depth, end point protection, access control, firewalls, SIEM.
  • Demonstrated years of experience working with or maintaining Industrial Automation & Control Systems (IACS) with Global corporations or with IACS vendors (DCS, PLC, SIS, SCADA, IED).
  • 3-5 years of hands on and extensive OT networking and cybersecurity experience conducting network design, network hardening, vulnerability identification and mitigation plans.
  • Knowledgeable of emerging OT Security frameworks and standards including NIST CSF, NIST SP 82R2, IEC-62443, ISA 99 and NERC CIP.
  • Be familiar with at least one of these vertical segments: power, oil & gas, chemical, pharmaceutical, manufacturing, automotive or logistics
  • Notions of project management and agile methodologies are considered as a plus.
  • French or Dutch as mother tongue and good verbal and written knowledge of the other language as well as English.
Personal Attributes & Required Skills
  • Display persuasive and confident presentation.
  • Emotional and stress resilience and ability to autonomously achieve challenging goals.
  • Clear and persuasive communication (verbal and written).
  • Balanced Business and Technology savvy with a strong understanding of both applications, services and infrastructure.
  • Interpersonal skills with the ability to develop and maintain strong relationships with various stakeholders.
  • Analytical thinking and excellent problem-solving ability as well as an appreciation for rigour and objectivity.
  • Good business acumen allowing identification of business opportunities and our clients’ business needs, and delivery of consultative engagements in line with these.
  • Strong personal initiative and a sense for innovation, to identify efficient and competitive solutions to our clients’ needs, as well as new types of engagements and solutions.
  • Work flexibility and willingness to travel for a limited period if needed.
  • Strong ability to work as part of a team, and to drive or lead such teams where opportune.
  • Eligible and prepared to obtain NATO clearance if necessary.

Contact: Pierre Dagneau +32 477 21 65 20 -  pdagneau@antal.com

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Pierre Dagneau