OT Detection Engineer

Our Global Detection Engineering Team provides detection capabilities for various security products used in our 24/7 managed monitoring service with customers all over the world. This role will be to join our detection engineering team, where you will focus on developing the best detections for OT environments utilizing our Network Sensor, supporting our NDR for OT service. You will use our latest Threat Intelligence and your own creativity to write and maintain detection logic for our customers.

Previous experience with detection engineering is not a prerequisite.

Responsibilities

of any candidate can be tailored given their experience and skillset. Any candidate that only partially matches the skillset is encouraged to apply. The Opportunity: Develop, validate, tune and optimise network sensor detection logic specific to OT environments.

Integrate network telemetry into SIEM and SOAR platforms. Support client facing teams in network sensor deployments and configuration baselines. Write and maintain detection tests cases.

Review findings of TI, CERT, and Red Team activities and evaluate from a detection engineering improvement perspective. Researching data sets and potential IOCs for distribution. Running tools/techniques to get data.

Researching log sources and data sets. Writing rules and alert logic. Writing test processes and procedures for the logic.

Monitoring test output and bug fixing. Monitoring the system & data health. Add global filters to detection logic based on operational feedback.

Deploy new analytics to existing customers using our deployment pipeline(s). Ensuring work is up-to-date or tracked.

Requirements

Proven experience with and understanding of industrial environments and protocols (such as, but not excluded to: Modbus, S7Comm, S7Comm+, Bacnet, Profinet, DNP3, OPC, MQTT). Proven experience and general understanding of detection engineering, tuning and optimization of detection logic with Suricata, Zeek or vendor platforms (such as Dragos, Nozomi, Claroty, Armis or Darktrace).

: A security mindset and demonstrable experience or knowledge of the contemporary attack tactics and techniques specific for OT environments. Forensics or Incident Response competency would be considered valuable. Strong knowledge of the latest threats in security or is eager to build this knowledge.

Experience with simulating attacks. Certificates such as CEH and OSCP are not required but are a plus. Experience with network detection tools, preferably Zeek, Suricata, Nozomi, Claroty, Armis or Dragos.

Experience with Scripting languages such as PowerShell, Python, Bash. ). And has knowledge of one or more of the below: Networking fundamentals.

ICS/SCADA Flexible Working : Balance your work and personal life with our flexible working options. Generous Holiday Allowance : Enjoy 25 days of holiday, plus bank holidays, with the option to buy up to 5 additional days of annual leave.

Benefits

: Enjoy peace of mind with our Pension, Life Assurance, and Share Save Scheme. Community & Volunteering Programmes : Make a difference in your community with our volunteering opportunities. Green Car Scheme: Drive green and save money with our eco-friendly car scheme.

Cycle Schem e: Stay fit and healthy with our cycle-to-work scheme.