Senior Security Engineer – SecOps

Mozilla

. Identify and respond to security incidents on a global scale .

Posted 9/29/2026full-timeRemote • SpainSenior💰 €58,000 - €77,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in managing security incidents on a global scale, utilizing security information and event management (SIEM) systems, endpoint detection and response (EDR) tools, and security orchestration and automation (SOAR) platforms. Strong communication and leadership skills are essential for effective collaboration with diverse stakeholders.

Highest-signal resume keywords

Security Incident ManagementSecurity Information And Event Management (SIEM)Endpoint Detection And Response (EDR)Security Orchestration And Automation (SOAR)Cloud Technologies

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Security Incident ManagementThreat HuntingIncident Response LifecycleEndpoint DetectionRoot Cause Analysis

Soft Skills

CommunicationLeadership

Tools & Technologies

SplunkELKGoogle BigQueryTinesGoogle Cloud PlatformAmazon Web ServicesMicrosoft Azure

Industry Keywords

Security Operations Center (SOC)Product Security Incident Response Team (PSIRT)Computer Security Incident Response Team (CSIRT)

Tech Stack

Tools & technologies

AWSAzureBigQueryCloudGoogle Cloud PlatformHerokuSplunk

About the role

Key responsibilities & impact

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 security alerts, automated actions, playbooks, and escalation workflows for a high-performing 24/7 incident response capability
Conduct threat hunting activities and anticipate future threats
Maintain forward-thinking strategies for tools, technology, and processes that combat sophisticated threat actors
Research threat intelligence reports and triage and manage resulting workflows
Partner with key stakeholders across preparation, identification, analysis, containment, and post-mortem activities
Participate in an on-call rotation

Requirements

What you’ll need

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 endpoint detection and investigation
Hands-on experience with leading EDR tools and demonstrated ability to leverage endpoint telemetry to find root cause
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
Practical experience working with cloud technologies (eg. Google Cloud Platform, Amazon Web Services, Heroku, Microsoft Azure, etc.)

Benefits

Comp & perks

Generous performance-based bonus plans to all eligible employees - we share in our success as one team
Rich medical, dental, and vision coverage
Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute)
Quarterly all-company wellness days where everyone takes a pause together
Country specific holidays plus a day off for your birthday
One-time home office stipend
Annual professional development budget
Quarterly well-being stipend
Considerable paid parental leave
Employee referral bonus program
Other benefits (life/AD&D, disability, EAP, etc. - varies by country)