Senior Staff Application Security Engineer

About Life360

Life360’s mission is to keep people close to the ones they love. Our category-leading mobile app and Tile tracking devices empower members to protect the people, pets, and things they care about most with a range of services, including location sharing, safe driver reports, and crash detection with emergency dispatch. Life360 serves approximately 77 million monthly active users (MAU), as of November 2024, across more than 170 countries. 

Life360 delivers peace of mind and enhances everyday family life with seamless coordination for all the moments that matter, big and small. By continuing to innovate and deliver for our customers, we have become a household name and the must-have mobile-based membership for families (and those friends that basically are family). 

Life360 has more than 500 (and growing!) remote-first employees. For more information, please visit life360.com.

Life360 is a Remote First company, which means a remote work environment will be the primary experience for all employees. All positions, unless otherwise specified, can be performed remotely (within the US) regardless of any specified location above. 

About the Job

Guardians of Trust and Innovation

The Information Security team at Life360 is the backbone of the trust our users place in us. We are a diverse, highly skilled group of cybersecurity professionals dedicated to safeguarding our customers, products, and company from evolving threats. Our mission is to not only protect Life360 but to enable its success by fostering innovation in a secure environment.

We achieve this by embedding security into every aspect of Life360's operations, from product development to infrastructure. Our team excels at building robust security systems, driving proactive threat detection and response, and championing security best practices across the company.

Our team thrives on collaboration, innovation, and a shared passion for protecting people. Joining this team means being part of a mission-driven group that directly impacts Life360's reputation, user trust, and long-term success.

The US-based salary range for this position is $181,000-  $266,000. We take into consideration an individual's background and experience in determining final salary- therefore, base pay offered may vary considerably depending on geographic location, job-related knowledge, skills, and experience. The compensation package includes a wide range of medical, dental, vision, financial, and other benefits, as well as equity.

What You’ll Do

• Drive “shift left” security initiatives, embedding security best practices seamlessly into the software development lifecycle to proactively identify and mitigate risks.
• Assess third-party vendors and cloud service providers to ensure compliance with security and privacy standards.
• Participate in the security on-call rotation to respond to and mitigate security incidents.
• Document security-relevant architectural decisions and ensure security considerations are integrated into system designs.
• Serve as a trusted advisor, offering web and mobile security expertise to enable engineering and product teams to make informed, confident decisions.
• Perform technical security assessments and reviews, research, uncover, and reproduce vulnerabilities, design secure protocols and systems, and write tests to drive architecture changes
• Provide guidance and education to engineering and product teams on available security controls and their appropriate use to help prevent vulnerabilities.
• Partner closely with product and engineering teams to design solutions that are secure by default
• Scale security efforts by integrating automation for the identification, prioritization, and remediation of vulnerabilities. Empower engineering teams through automation, security guidance, tooling, patterns, and training to scale security practices across the organization.

What We’re Looking For

• 10+ years of hands-on experience in application security, securing cloud-based and containerized environments.
• Strong understanding of cybersecurity threats, vulnerabilities, and mitigations, with a proactive approach to embedding security throughout the product lifecycle.
• Deep expertise in secure design, threat modeling, offensive security, and risk reduction beyond compliance checklists.
• Experience with modern application stacks, security tooling, and DevSecOps pipelines, with a passion for security automation and pragmatic defenses.
• Working knowledge of one or more programming languages (preferably Python) and experience writing software that enhances security processes.
• Exceptional ability to distill complex security concepts into clear actions, driving alignment across engineering teams without direct authority.
• A collaborative mindset with a strong ability to build relationships, influence cross-functional teams, and lead high-impact security initiatives.
• Creative and strategic thinker who can holistically reduce risk, scale security through smart design, and bring clarity to ambiguous challenges.
• A track record of contributions to the security community (research, blogging, presentations, bug bounty) is a plus.
• Strong bias for action, ownership, and delivering measurable improvements to security posture.

Our 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 Week-long 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

Life360 Values

Our company’s mission driven culture is guided by our shared values to create a trusted work environment where you can bring your authentic self to work and make a positive difference 

• Be a Good Person - We have a team of high integrity people you can trust. 
• Be Direct With Respect - We communicate directly, even when it’s hard.
• Members Before Metrics - We focus on building an exceptional experience for families. 
• High Intensity, High Impact - We do whatever it takes to get the job done. 

Our Commitment to Diversity

We believe that different ideas, perspectives and backgrounds create a stronger and more creative work environment that delivers better results. Together, we continue to build an inclusive culture that encourages, supports, and celebrates the diverse voices of our employees. It fuels our innovation and connects us closer to our customers and the communities we serve. We strive to create a workplace that reflects the communities we serve and where everyone feels empowered to bring their authentic best selves to work.

We are an equal opportunity employer and value diversity at Life360. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, disability status or any legally protected status.  

We encourage people of all backgrounds to apply. We believe that a diversity of perspectives and experiences create a foundation for the best ideas. Come join us in building something meaningful. Even if you don’t meet 100% of the below qualifications, you should still seriously consider applying!