Security Solution Architect - OT (Operational Technology)

Cegeka; Antwerpen, Diegem; Híbrido; EUR 90.000 - 130.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Hybrid work model

Career growth opportunities

Top Employer certificate

Competitive benefits package

Descripción de la vacante

Cegeka is seeking a Security Solution Architect - OT to lead design authority across industrial environments, translating business, safety, and security requirements into practical target architectures and implementation guidance.

You will collaborate with OT asset owners, plant engineering, IT and security teams to define target architectures, govern design decisions, and support pre-sales with credible options and risks.

Formación

• Substantial experience designing security solutions for OT or industrial environments.
• Deep understanding of industrial control systems (PLCs, SCADA, DCS, HMIs) and IT/OT integration.
• Knowledge of ISA/IEC 62443 standards and risk-based zoning concepts.
• Ability to produce high-level OT designs and govern detailed design reviews.
• Experience supporting presales with OT architecture inputs and cost considerations.
• Strong communication, leadership and collaboration skills.
• Fluent English; additional languages are a plus.
• Relevant certifications and higher education in cybersecurity or automation.

Responsabilidades

• Lead customer discovery, site assessments and architecture workshops with OT teams.
• Define OT security target architectures and high-level designs with implementation guidance.
• Act as OT security design authority and govern design decisions.
• Guide engineering teams through implementation, validate runbooks and handover.
• Address OT security, integration and operational risks with appropriate controls.
• Provide OT architecture inputs to Solution Pre-Sales including risks and estimates.
• Collaborate with Product Management on OT security services and patterns.
• Maintain reusable OT architecture assets and support partner relationships.

Conocimientos

OT security design

Industrial control systems

Solution architecture

Customer-facing consulting

ISA/IEC 62443 knowledge

Purdue model knowledge

English communication

Educación

Higher education in cybersecurity/architecture

Herramientas

ISA/IEC 62443

GIAC GICSP

Descripción del empleo

Security Solution Architect - OT (Operational Technology)

Do you combine deep OT cybersecurity expertise with architectural judgement to protect industrial environments without compromising safety, availability or operational continuity? As Security Solution Architect focused on Operational Technology (OT), part of our Security & Networking Architecture team, you are a senior, customer-facing technical authority for industrial and cyber-physical environments. You own solution architecture and design authority from discovery through delivery, translating business, operational, safety and security requirements into practical target architectures, high-level designs and implementation guidance. You connect IT and OT stakeholders to develop secure, resilient and supportable solutions that respect legacy systems, long asset lifecycles and production constraints. You work directly on customer engagements and provide specialist OT architecture expertise to opportunities led by the Solution Pre-Sales team.

• Lead customer discovery, site assessments and architecture workshops with OT asset owners, plant engineering, operations, IT and security teams to clarify critical processes, requirements, constraints, dependencies and risks.
• Define OT security target architectures, standards, patterns, high-level designs and implementation guidance, for secure, resilient and operable solutions.
• Act as OT security design authority, governing design decisions, reviewing solution artefacts and managing exceptions, compensating controls, in line with operational and safety constraints.
• Guide engineering and project teams through implementation; validate detailed designs, testing and runbooks, and confirm alignment with the approved architecture before operational handover.
• Identify and address OT security, integration and operational risks. Design controls for asset visibility, secure remote and vendor access, IT/OT boundaries, monitoring, hardening and vulnerability management and recovery.
• Provide validated OT solution architecture inputs to the Solution Pre-Sales team, including technical designs, options, assumptions, dependencies, risks and delivery estimates.
• Partner with Product Management to evolve OT security services, reference architectures, blueprints, patterns, costing models and industry-specific propositions.
• Maintain reusable OT architecture assets, coach colleagues and contribute to industrial security technology-partner relationships and team capability.

What you need to succeed:

• Substantial experience designing and delivering security solutions for OT or industrial environments, with senior-level technical credibility and customer-facing consulting experience.
• Deep understanding of industrial control systems, including PLCs, SCADA, DCS and HMIs, industrial protocols and IT/OT integration, with practical knowledge of ISA/IEC 62443, the Purdue model and risk-based application of zones and conduits.
• Strong knowledge of industrial networking, segmentation, firewalls, secure remote access, OT asset discovery and monitoring, and integration with identity services and security operations. Understand the implications of control selection for safety, availability, reliability and real-time operations.
• Demonstrated ability to produce and govern OT high-level designs and review detailed designs, implementation plans, testing and rollback approaches, and operational documentation. Experience assessing brownfield environments, legacy technology and vendor support constraints.
• Experience supporting dedicated presales teams with OT architecture, effort and cost inputs, assumptions, dependencies and risks, and explaining technical choices to plant operations, engineering, IT, security and business stakeholders.
• Strong architectural thinking, technical leadership, consulting, communication and collaboration skills, with sound commercial awareness.
• Excellent written and spoken English, additional languages are an asset.
• Relevant OT security certifications, such as ISA/IEC 62443 or GIAC GICSP, relevant vendor certifications and additional languages are assets.
• Relevant higher education or equivalent professional experience in cybersecurity, industrial automation, control systems, electrical engineering, networking or architecture.

What are we offering:

• You will be joining a true Top Employer
• Year after year, Whitelane Research confirms Cegeka’s position as a reliable and leading IT services partner. In 2026, we achieved first place in Security Services for the fourth consecutive year, and a shared second place in both Cloud & Infrastructure Services and Network & Connectivity
• We ask a lot of (talents) from you. Fortunately, you also get a lot in return! Competence and character are essential to us, in addition to experience and ambitions. Cegeka continuously invests in talent management so that every employee can realize their potential
• We use a framework aimed at fair compensation, ensuring employees are paid based on their role, experience, and performance, regardless of gender or other non-job-related characteristics. An electric car with charge card or a mobility budget, meal vouchers, eco vouchers, an interesting group and hospitalization insurance, a mobile phone subscription, a fixed expense allowance, a powerful laptop and the option to give your salary package your own accent thanks to our Flex Reward Plan
• Flexible working hours and a nice work/life balance
• A top team: in which new fresh ideas and initiatives are always welcome! Team events, happy hours and an increasingly legendary company party are also part of this
• Continuous learning: knowledge sharing meetings, participation in conferences and external training. Knowledge sharing and learning are key! Depending on your own interests and initiatives, Cegeka offers various horizontal and vertical career paths
• We value sustainability by pursuing carbon neutrality with the electrification of our fleet and an environmentally friendly data center. We develop innovative solutions with a positive impact on the environment, people and society, and strive for an inclusive and diverse work environment where everyone is valued and heard.
• Would you like to join us as a freelancer? Then we offer you a market-conform daily rate and a range of benefits.

Market-compliant salary with attractive extra benefits.

Flexible working hours supporting your work/life balance.

Career growth with horizontal and vertical development paths.

Hybrid work model blending office and remote work efficiently.

Personal guidance from managers, coaches, and sparring partners.

ESG: lower emissions, foster inclusion and drive sustainability in IT.

Cegeka proudly holds the Top Employer certificate.

Team events, happy hours, sports events, and epic company festival.