Mobile Security Engineer, Application Security

Application deadline: Sep 24, 2026 Amazon’s Stores Application Security Team is seeking a Mobile Security Engineer to help keep Amazon secure for its customers. In this role, you will attack Amazon’s services, mobile applications to discover security issues and report them to our internal technology teams. This position will provide you with challenging opportunities, both technologically and as a leader, but will also be a great deal of fun if hacking Amazon alongside a team of highly skilled individuals sounds exciting to you. In Amazon Stores, we ship some of the widest arrays of technology found at any company. From amazon.com to world-class machine learning pipelines, from innovative digital healthcare to no-checkout retail, we push the boundaries of technology in every direction using the globe's largest AWS deployment. A Security Engineer at Amazon is expected to be strong in multiple domains. Engineers in this role work closely with teams throughout Information Security, as well as provide technical leadership and advice to teams and leaders throughout Amazon. You will be in direct contact with teams in a variety of business verticals, giving you first hand knowledge about how Amazon is built and how it operates at a deep, technical level. Additionally, you will leverage the knowledge you gain about Amazon to find new ways to break services, processes, and technologies throughout the company. Engineers in this role must show exemplary judgment in making technical trade-offs between short-term fixes and long-term security and business goals. You will demonstrate resilience and navigate ambiguous situations with composure and tact. You will be expected to provide thought leadership for the organization as you discover, invent, and innovate throughout the course of your duties. Above all else, a strong sense of customer obsession is necessary to focus on the ultimate goal of keeping Amazon and its customers secure. Key job responsibilities * Conducting high quality application penetration tests independently, or as part of a team * Creating detailed engagement plans and thoroughly documenting findings, gaps, and remediation recommendations * Contributing to team tooling, innovation, and improvements * Communicating and collaborating with partner teams, service owners, Information Security, and senior leadership to influence, prioritize, and drive the resolution of discovered security findings About the team Diverse Experiences Amazon Security values diverse experiences. Even if you do not meet all of the qualifications and skills listed in the job description, we encourage candidates to apply. If your career is just starting, hasn’t followed a traditional path, or includes alternative experiences, don’t let it stop you from applying. Why Amazon Security? At Amazon, security is central to maintaining customer trust and delivering delightful customer experiences. Our organization is responsible for creating and maintaining a high bar for security across all of Amazon’s products and services. We offer talented security professionals the chance to accelerate their careers with opportunities to build experience in a wide variety of areas including cloud, devices, retail, entertainment, healthcare, operations, and physical stores. Inclusive Team Culture In Amazon Security, it’s in our nature to learn and be curious. Ongoing DEI events and learning experiences inspire us to continue learning and to embrace our uniqueness. Addressing the toughest security challenges requires that we seek out and celebrate a diversity of ideas, perspectives, and voices. Training & Career Growth We’re continuously raising our performance bar as we strive to become Earth’s Best Employer. That’s why you’ll find endless knowledge-sharing, training, and other career-advancing resources here to help you develop into a better-rounded professional. Work/Life Balance We value work-life harmony. Achieving success at work should never come at the expense of sacrifices at home, which is why flexible work hours and arrangements are part of our culture. When we feel supported in the workplace and at home, there’s nothing we can’t achieve. - Bachelor's degree in computer science or equivalent - 3+ years of experience in a penetration testing or similar offensive security role - 3+ years of experience in client-side application security, including reverse engineering and security assessments - 3+ years of professional experience with security engineering practices, including: web application security, authentication and authorization protocols, cryptography, automation, and other software security disciplines - 3+ years of experience with dynamic and manual code auditing to identify security issues - 3+ years of experience with interpreted or compiled languages (e.g. Python, Ruby, C/C++, Java, .NET) - Experience with threat modeling, design review, or other threat analysis techniques - Proficiency with binary analysis tools (e.g. Ghidra, IDA Pro, Radare2, Hopper, Jadx) - Experience with client-side application instrumentation and dynamic testing (e.g. Frida, Objection, LLDB, Burp Suite) - Knowledge of cloud services such as AWS or equivalent - Experience with design, implementation, support, and evaluation of security-focused tools and services - Experience with mobile application penetration testing - Familiarity with threat models for client-side applications on consumer devices and the vulnerability classes specific to their platforms and communication protocols - Experience mentoring developers on secure coding practices and vulnerability mitigations - Experience in CTF competitions, CVE research, and/or Bug Bounty recognition Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status. Los Angeles County applicants: Job duties for this position include: work safely and cooperatively with other employees, supervisors, and staff; adhere to standards of excellence despite stressful conditions; communicate effectively and respectfully with employees, supervisors, and staff to ensure exceptional customer service; and follow all federal, state, and local laws and Company policies. Criminal history may have a direct, adverse, and negative relationship with some of the material job duties of this position. These include the duties and responsibilities listed above, as well as the abilities to adhere to company policies, exercise sound judgment, effectively manage stress and work safely and respectfully with others, exhibit trustworthiness and professionalism, and safeguard business operations and the Company’s reputation. Pursuant to the Los Angeles County Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records. Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records. Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit https://amazon.jobs/content/en/how-we-hire/accommodations for more information. If the country/region you’re applying in isn’t listed, please contact your Recruiting Partner. The base salary range for this position is listed below. Your Amazon package will include sign-on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience, qualifications, and location. Amazon also offers comprehensive benefits including health insurance (medical, dental, vision, prescription, Basic Life & AD&D insurance and option for Supplemental life plans, EAP, Mental Health Support, Medical Advice Line, Flexible Spending Accounts, Adoption and Surrogacy Reimbursement coverage), 401(k