Job Description
Security OT EngineerRate: £500 - £550 Inside IR35Duration: 6 monthsLocation: South West (Bristol) - 2 days per week onsiteThe Role:We're hiring an experienced Security OT Engineer to support the protection and evolution of complex Operational Technology (OT) and industrial control system environments.This role sits within a Security Operations function but is heavily engineering focused, combining hands on OT security tooling, detection engineering and incident response to strengthen resilience across critical infrastructure.Key Responsibilities:Act as the OT security engineering SME, supporting both operational and project based activitiesEngineer, configure and optimise OT security platforms (e.g. OT NDR tools such as Claroty or equivalent)Develop and refine detection rules, alerting logic and monitoring coverage across OT and IT/OT convergence pointsLead technical investigations and incident response for OT-related cyber eventsAnalyse industrial network traffic to identify anomalies, threats and protocol misuseIntegrate OT telemetry into SIEM and EDR platforms to enhance visibility and correlationSupport secure by design initiatives for new OT systems, including segmentation and access control validationAssess vulnerabilities in OT systems and implement practical, risk-based remediation strategiesDrive continuous improvement in OT security posture, tooling effectiveness and detection capabilityMaintain and enhance OT security documentation, playbooks and engineering standardsExperience Required:Proven experience in a Security OT Engineer / OT Cyber Security roleStrong understanding of industrial control systems (ICS) - including SCADA, PLCs, DCSHands-on experience with OT security tools (e.g. Claroty, Nozomi, Dragos or similar NDR platforms)Experience with SIEM, EDR and network traffic analysisBackground in incident response, threat detection and security monitoring within OT or converged environmentsUnderstanding of network segmentation, secure remote access and OT architecture designDesirable:Certifications such as GICSP, ISA/IEC 62443, Security+ or CEHExperience working in critical infrastructure or regulated environmentsExposure to threat hunting and purple team activities within OT environmentsKey Skills & Attributes:Strong engineering mindset with a focus on building and improving security capabilityAbility to balance security requirements with operational safety and uptimeAnalytical, detail-oriented and comfortable working with complex OT environmentsConfident communicator, able to engage across security, IT and engineering teamsProactive and solution-driven with a focus on continuous improvementReasonable Adjustments:Respect and equality are core values to us.
We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients.If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.TPBN1_UKTJ