Zscaler - Senior Detection Engineer

• Hands-on experience developing and implementing detection rules in a Security Information and Event Management (SIEM) tool, such as Splunk, Microsoft Sentinel, or ElasticSearch • Familiarity with MITRE ATT&CK framework and experience translating TTPs into actionable detection logic • Scripting and automation skills using Python for developing and managing detection infrastructure • Must have excellent reporting and analytical skills and experience writing and optimizing IDS/IPS and YARA signatures • Must be able to validate detection logic, perform root cause analysis of detection failures, and deliver recommendations for platform improvements • 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 thrive in ambiguity. • building the path as you walk it • 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 act like an owner. • 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 problem-solver. • 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 high-trust collaborator. • 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. • You are a learner. • Proven experience in one or more of the following - detection engineering, threat hunting, security operations, malware analysis, blue teaming, or network defence • Bachelor’s or graduate degree from a four-year college or university (preferably in Computer Science, Engineering, or a related discipline), or equivalent security industry work experience • Experience in network-based threat detection and signature development (e.g., Snort/Suricata rules) • #LI-Remote #LI-JG1 #LI-CostaRica • At Zscaler, we are committed to building a team that reflects the communities we serve and the customers we work with. We foster an inclusive environment that values all backgrounds and perspectives, emphasizing collaboration and belonging. Join us in our mission to make doing business seamless and secure. • Our Benefits program is one of the most important ways we support our employees. Zscaler proudly offers comprehensive and inclusive benefits to meet the diverse needs of our employees and their families throughout their life stages, including: • Various health plans • Time off plans for vacation and sick time • Parental leave options • Retirement options • Education reimbursement • In-office perks, and more! • Learn more about Zscaler’s Future of Work strategy, hybrid working model, and benefits here. • By applying for this role, you adhere to applicable laws, regulations, and Zscaler policies, including those related to security and privacy standards and guidelines.