Senior/Mid-level MSS Analyst – OT/ICS Security

🕒 July 1

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SEK Security Ecosystem Knowledge

WebsiteLinkedInAll Job Openings

501 - 1000 employees

Founded 1999

🎖️ Defense

🏥 Healthcare

💼 Consulting

Defense • Healthcare • Consulting

SEK Security Ecosystem Knowledge is a cybersecurity services and solutions provider offering unified cyber risk management, defense and incident response. Using its RAP methodology and cloud platform, SEK delivers managed detection and response (MDR), red team services, threat blocking, and resilience monitoring to primarily enterprise clients across Latin America, supported by global research centers and vendor partnerships.

📋 Description

• Dedicated to the operation of monitoring and managed response (MSS/MDR) • Monitor, triage, and investigate alerts and incidents in OT/ICS environments • Conduct root cause analyses for events involving PLCs, HMIs, and RTUs • Correlate OT events with IT telemetry • Support the Detection Engineering team in building and refining use cases • Maintain and evolve clients' OT asset inventories • Participate in OT vulnerability management cycles • Serve as the technical point of contact in meetings with industrial clients • Produce technical and executive reports on investigations conducted

🎯 Requirements

• Proven experience in industrial environments (plant, utilities, oil & gas, manufacturing, energy, water/wastewater or similar) • Solid understanding of SCADA/DCS architectures, the Purdue model, zone and conduit segmentation (IEC 62443), and IT/OT convergence • Hands-on knowledge of PLCs, HMIs, historians, engineering workstations, and industrial protocols • Strong fundamentals in computer networks: TCP/IP, OSI model, routing, switching, VLANs, firewalls, NAT, packet capture and traffic analysis • Understanding of behavioral and requirement differences between OT traffic and traditional IT traffic • Previous experience in SOC, NOC, CSIRT, incident response teams, or equivalent roles • Fundamentals of Windows and Linux operating systems • Technical English for reading documentation, advisories, and communicating with vendors/manufacturers

🏖️ Benefits

• Not provided