Senior OT Threat Hunter (Cybersecurity)

TL;DR

Senior OT Threat Hunter (Cybersecurity): Leading hypothesis-driven threat hunting operations across customer ICS/OT environments with an accent on identifying adversaries, anomalies, and misconfigurations. Focus on analyzing OT-specific protocols, optimizing detection fidelity in the hirify.global Platform, and providing actionable remediation guidance to customers during security events.

Location: Remote (Must be based in Australia)

Salary: 150,000 AUD + Competitive Equity Package

Company

hirify.global is a market leader in ICS/OT Cybersecurity dedicated to defending industrial organizations that provide essential modern civilization services.

What you will do

• Lead independent, hypothesis-driven threat hunting operations in customer ICS/OT environments to identify adversaries and anomalies.
• Act as the primary escalation point for high-severity events detected in the hirify.global Platform, guiding triage and response.
• Communicate critical security findings and provide actionable remediation guidance directly to customers.
• Tune and optimize hirify.global Platform configurations and distributed hunt profiles to improve detection fidelity.
• Develop original hunt hypotheses and provide structured feedback to Detection Engineering and Intelligence teams.
• Mentor junior team members to promote technical rigor and knowledge sharing across the team.

Requirements

• 5+ years of experience in threat hunting, security monitoring, or incident response within ICS/OT environments.
• Strong understanding of networking concepts (TCP/IP, DNS, packet analysis) and OT protocols (Modbus, DNP3, Ethernet/IP).
• Experience with PCAP analysis, IDS/IPS, and SIEM platforms in an OT context.
• Deep familiarity with adversary TTPs for OT environments and the MITRE ATT&CK for ICS framework.
• Proven ability to communicate complex security findings to clients and internal stakeholders.
• Must be based in Australia.

Culture & Benefits

• Remote-first culture with operations across North America, Europe, Middle East, and APAC.
• Competitive equity package.
• Comprehensive benefits plan.
• Mission-oriented environment focused on defending critical global infrastructure.
• Values-driven culture based on authenticity, transparency, and trust.