Role OverviewA leading organisation specialising in cybersecurity and digital transformation is seeking a Principal OT Security Solution Architect to join their team. The company delivers strategic advisory services and customised security solutions to large enterprises and public-sector clients.Key ResponsibilitiesDevelop high-quality technical content for proposals, including diagrams, project plans, compliance documentation, and other formal submission materials.Plan, coordinate, and oversee customer proof-of-concept (POC) engagements, defining scope, success criteria, technical requirements, timelines, and presenting outcomes.Produce and maintain OT-security-related technical documentation such as design concepts, use cases, integration approaches, high- and low-level designs, best practices, and POC reports.Skills & Experience RequiredStrong understanding of industrial cybersecurity standards (e.g., IEC 62443, IEC 62351, NERC CIP, NIST 800-82).Deep knowledge of OT cybersecurity principles and architectures.Solid grounding in IT security technologies, including firewalls, IPS, DDoS protection, proxies, vulnerability management, endpoint security, data diodes, and related tools.Proven consulting and pre-sales capabilities, with both technical and commercial awareness.What's on OfferAttractive tax-free compensation package.Opportunities for career development through complex and high-impact projects.A dynamic, professional environment with exposure to emerging technologies and product roadmaps.Inclusive, diverse culture with flexible or hybrid working options.GCS is acting as an Employment Agency in relation to this vacancy.