Staff Security Engineer, Penetration Testing

Life360

110d • $165,000 - $242,500

About The Position

We are looking for a Staff Security Engineer, Penetration Testing, who will serve as a trusted offensive security expert at Life360. In this role, you will lead penetration testing and red team activities across our mobile applications, APIs, AWS cloud environments, and hardware devices. You will identify vulnerabilities that matter, design real-world attack simulations, and provide clear guidance to help our engineering teams close security gaps before they can be exploited. You will bring deep expertise in offensive security and hands-on experience with penetration testing in complex environments. You know how to think like an attacker and can translate that mindset into actionable insights that strengthen defenses. You will partner closely with product, cloud, and hardware engineering teams to embed security into the design process, validate that our controls work as intended, and continuously raise the bar for tenacity across the organization. Success in this role means you are not only finding and exploiting weaknesses but also helping Life360 build durable solutions that protect millions of families who rely on our platform. You will influence security culture, scale your impact through automation and knowledge sharing, and help us stay ahead of emerging threats with a forward-thinking, offensive lens.

Requirements

• 7+ hands-on experience in penetration testing with a focus on mobile applications, APIs, AWS cloud environments, and hardware devices.
• Deep expertise in offensive security techniques, exploit development, and red teaming.
• Proficient knowledge of common vulnerabilities, attack vectors, and frameworks such as OWASP, MITRE ATT&CK, and NIST.
• Proficiency with modern penetration testing tools and the ability to build custom scripts and exploits when needed.
• Ability to clearly communicate technical findings to both engineers and business stakeholders, translating risk into actionable outcomes.
• Experience collaborating with cross-functional teams and influencing secure design decisions.
• Good at solving problems, enthusiastic to learn, and able to adjust swiftly in a bustling environment.
• Interest for staying ahead of emerging threats and continuously raising the bar for security.

Nice To Haves

• Offensive security certifications such as OSCP, OSWE, OSEE, CREST, or GXPN.
• Experience with hardware hacking, reverse engineering, or firmware analysis.
• Knowledge of secure software development practices and the ability to influence design reviews.
• Knowledge with security automation frameworks and custom tool development.
• Prior experience leading red team engagements or building offensive security programs.
• Background in threat modeling, exploit research, or vulnerability discovery at scale.
• Proficient contributions to the security community through research, publications, or open-source projects.

Responsibilities

• Lead penetration tests of Life360’s mobile applications, APIs, AWS environments, and hardware devices to identify and validate vulnerabilities.
• Design and execute advanced attack simulations that mirror real-world adversaries and provide actionable insights to engineering teams.
• Develop proof-of-concept exploits and technical reports that clearly communicate risk and drive remediation.
• Collaborate with product, cloud, and hardware engineers to embed security into the design and development lifecycle.
• Validate the efficiency of defensive controls and influence improvements based on offensive findings.
• Build tools, automation, and repeatable methodologies to scale penetration testing across Life360’s ecosystem.
• Mentor engineers and share offensive security knowledge to raise the bar for security awareness across the company.
• Stay ahead of emerging threats and offensive security techniques to ensure Life360 remains durable against evolving attack vectors.

Benefits

• Competitive pay and benefits
• Medical, dental, vision, life and disability insurance plans (100% paid for employees)
• 401(k) plan with company matching program
• Mental Wellness Program & Employee Assistance Program (EAP) for mental well being
• Flexible PTO, 13 company-wide days off throughout the year
• Winter and Summer Weeklong Synchronized Company Shutdowns
• Learning & Development programs
• Equipment, tools, and reimbursement support for a productive remote environment
• Free Life360 Platinum Membership for your preferred circle
• Free Tile Products

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Number of Employees: 251-500 employees