Infrastructure Security Monitoring Engineer

Meta's Infrastructure Security Monitoring (ISM) team is seeking an experienced engineer to help secure the infrastructure that connects over a billion users. You will be responsible for building, implementing and operationally supporting detections throughout our infrastructure. We are looking for candidates who are passionate about security and innovation, and eager to create solutions that strengthen our infrastructure and safeguard our community.

Infrastructure Security Monitoring Engineer Responsibilities:

• Iterate security posture to better protect against attacks and detect new vectors
• Lead efforts to mitigate and investigate security incidents
• Utilize frameworks to develop and scale detection, mitigation and response automation tooling
• Evaluate and test new vendor and home-grown initiatives for security issues
• Mentor and evangelize security practices through cross functional work with engineering teams throughout Meta
• Keep Meta safe through active operation and defense of critical infrastructure

Minimum Qualifications:

• 3+ years of development experience in at least one programming language (Python, Go, etc.) with the ability to apply that to security tool development, automation, and overall programmatic solutions that will be used to defend infrastructure
• 1+ years of experience in offensive/defensive security or systems engineering
• Knowledge of network protocols (TCP/IP, computer networking, routing and switching) and Unix based systems
• Experience researching, building, and implementing defensive security systems that are used against internal and external attack vectors
• Experience designing and building out application, system and network security monitoring to aid in detection or forensic investigations

Preferred Qualifications:

• Background in intrusion detection, security investigations, and incident response
• Experience "threat hunting", i.e. using threat intel to proactively and iteratively investigate these potential risks and finding suspicious behavior
• Experience developing baselines and investigating anomalies in order to identify suspicious behavior
• Experience with developing automation and utilizing frameworks to scale detection, mitigation or response tools

About Meta:

Meta builds technologies that help people connect, find communities, and grow businesses. When Facebook launched in 2004, it changed the way people connect. Apps like Messenger, Instagram and WhatsApp further empowered billions around the world. Now, Meta is moving beyond 2D screens toward immersive experiences like augmented and virtual reality to help build the next evolution in social technology. People who choose to build their careers by building with us at Meta help shape a future that will take us beyond what digital connection makes possible today-beyond the constraints of screens, the limits of distance, and even the rules of physics.

Individual compensation is determined by skills, qualifications, experience, and location. Compensation details listed in this posting reflect the base hourly rate, monthly rate, or annual salary only, and do not include bonus, equity or sales incentives, if applicable. In addition to base compensation, Meta offers benefits. Learn more about benefits at Meta.

Client-provided location(s): London, United Kingdom

Job ID: a1KDp00000E2gbhMAB

Employment Type: OTHER

Posted: 2025-11-06T19:56:47