Senior Detection Engineer

Zscaler accelerates digital transformation to ensure our customers can be more agile, efficient, resilient, and secure. As an AI-forward enterprise, we are constantly pushing the envelope, leveraging the world’s largest security data lake to power our cloud-native Zero Trust Exchange platform. This innovation protects our customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location.

Here, impact in your role matters more than title and trust is built on results. We say, impact over activity. We seek innovators who actively use AI to amplify their impact and who thrive in an environment where we leverage intelligent systems to stay ahead of evolving threats. We believe in transparency and value constructive, honest debate—we’re focused on getting to the best ideas, faster. We build high-performing teams that can make an impact quickly and with high quality. To do this, we are building a culture of execution centered on customer obsession, collaboration, ownership, and accountability.

We value high-impact, high-accountability with a sense of urgency where you’re enabled to do your best work and embrace your potential. If you’re driven by purpose, thrive on solving complex challenges, and want to be part of the team that’s helping to secure the AI age, we invite you to bring your talents to Zscaler and help shape the future of cybersecurity.

We are looking for a Senior Detection Engineer to join our team. This is a Hybrid role in Pune, reporting to the Senior Manager, Threat Researcher in the Threat Hunting department. You will own a coverage area and be accountable for its technical direction, overall efficacy, and high-standard content development. You will decide what gets built next, set the bar for detection content, and personally handle the most complex design decisions and detector implementations.

What you’ll do (Role Expectations)

• Take complete accountability for your domain's health, backlog prioritization, and performance - serving as the ultimate point of contact for its overall efficacy

• Personally tackle the hardest detection challenges to establish design patterns, coding standards, and implementation blueprints for the rest of the team

• Define clear criteria for validated, tuned, and maintainable content, using design/code reviews and root-cause analyses to continuously eliminate false positives and missed threats

• Identify and actively drive the core numbers that define area health, including detection fidelity, ATT&CK coverage, false-positive/negative rates, and regression prevention

• Systematically translate input from threat intelligence, proactive threat hunting, and SOC analyst feedback into concrete roadmap priorities and continuous engine improvements

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. True ownership involves leveraging dynamic range: the ability to navigate seamlessly between high-level strategy and hands-on execution.

• You are a problem-solver. You love running towards the challenges because you are laser-focused on finding the solution, 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