mozilla

Staff Security Engineer

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At a Glance

Location
Canada
Work Regime
remote
Experience
5+ years
Posted
2026-03-04T14:50:50-05:00

Key Requirements

Required Skills

AWSAzureGCP

Domain Knowledge

  • Automation
  • Engineering

Requirements

5+ years of demonstrated ability managing security incidents at a global scale and/or experience working in Security Operations Centers (SOC), Product Security Incident Response Teams (PSIRT), and Computer Security Incident Response Teams (CSIRT).

Expertise with security information and event management (SIEM) systems (eg. ELK, Google BigQuery, Splunk, etc.). Splunk proficiency is preferred.

Expertise with integrating and leveraging threat intelligence for detection engineering.

Expertise with security orchestration and automation (SOAR) platforms such as Tines or Splunk SOAR.

Superb communication and leadership capacity; ability to partner effectively with diverse company stakeholders.

Real-world experience in software development and/or engineering operations for consumer products and services; B.S. in a technology-focused field is helpful.

Responsibilities

Identify and respond to security incidents on a global scale.

Act as an incident commander to drive incidents through the entire response lifecycle.

Design and maintain a portfolio of security alerts, automated actions, playbooks and escalation workflows in support of a high-performing 24/7 incident response capability.

Conduct threat hunting activities, anticipate future threats, and maintain forward-thinking strategies for tools/technology/processes that combat sophisticated threat actors.

Research threat intelligence reports, triage and manage resulting workflows.

Partner with key stakeholders and communicate effectively to maintain a continuously improving feedback loop of preparation, identification, analysis, containment, and post mortem activities.

About the Company

Mozilla is looking for an Incident Responder to monitor and mitigate attacks across Mozilla’s products and services. In this position, you will be a part of a flexible team responsible for handling security incidents. As such, you’ll need to have years of practical security experience and knowledge of the state of the art for detecting and responding to attacks. You’ll be someone Mozillians across the company depend on and trust to respond quickly and effectively in a crunch, with the outstanding communication and collaboration skills needed to work in partnership with diverse stakeholders. Most importantly, you will become a critical member of the team responsible for ensuring the integrity of Mozilla’s products and for keeping Mozilla’s users safe, within a company dedicated to building a more secure internet.

Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online.