Senior Threat Hunter

Role

We’re looking for a Senior Threat Hunter to join our team. The role will be located remote in Costa Rica reporting to the Director of Threat Hunting as part of the Zscaler Threat Hunting team. 

This role is a customer facing role, responsible for delivering white-glove threat hunting deliverables to customers. As a Threat Hunter, you will split your time between exploring Zscaler customer telemetry to identify potential threats and interacting directly with customers to discuss these potential threats. For this position, we’re looking for someone to work standard business working hours with occasional on-call duties.
What You’ll Do (Role Expectations)

• Leverage deep, hands-on expertise in threat hunting, incident response, and security operations to proactively hunt, detect, defend, and advise for managed threat hunting customers
• Serve as a trusted security advisor to customers by writing and delivering tailored threat hunt findings, executive presentations, and strategic recommendations to a range of stakeholders from SOC analysts to CISOs
• Analyze customer web proxy telemetry against modern adversary Tactics, Techniques, and Procedures (TTPs) by utilizing SIEM-like tools (e.g. Splunk, Microsoft Sentinel, ElasticSearch) and by writing code (e.g. Python and SQL) to implement high-fidelity detection logic and actionable hunt hypotheses
• Review the output of detection engineering systems and the work of other analysts to continually improve our customer facing deliverables

Who You Are (Success Profile)

• You thrive in ambiguity. You're comfortable building the path as you walk it. You thrive in a dynamic environment, seeing ambiguity not as a hindrance, but as the raw material to build something meaningful.
• You act like an owner. Your passion for the mission fuels your bias for action. You operate with integrity because you genuinely care about the outcome. You adapt to what’s needed, navigating seamlessly between high-level strategy and hands-on execution.
• You are a problem-solver. You seek out challenges because you are energized by finding solutions, knowing that solving the hard problems delivers the biggest impact.
• You are a high-trust collaborator. You are ambitious for the team, not just yourself. You embrace our challenge culture by giving and receiving ongoing feedback—knowing that candor delivered with clarity and respect is the truest form of teamwork and the fastest way to earn trust.
• You are a learner. You have a true growth mindset and never stop developing yourself, actively seeking feedback to become a better partner and a stronger teammate. You love what you do and you do it with purpose.  

What We’re Looking for (Minimum Qualifications)

• Bachelor’s degree in cybersecurity, computer information systems, computer science,, or a related field
• 3+ years in Threat hunting, Incident response, Cybersecurity consulting, Security operations, Malware analysis, Blue teaming, Purple teaming, Network defense with at least 1 of those focused on Threat Hunting or Consulting.
• Deep expertise in threat hunting

What Will Make You Stand Out (Preferred Qualifications)

• You've presented at cybersecurity industry conferences
• You’re familiar with Zscaler Internet Access (ZIA) telemetry 
• You’ve briefed or presented to a wide range of cybersecurity professionals (from SOC analysts to CISOs)

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