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[Remote] Mobile Security Engineer, Application Security

Remote · Brazil Full-time

Note: The job is a remote job and is open to candidates in USA. Amazon is a technology company seeking a Mobile Security Engineer to help protect its customers and services. The role focuses on conducting mobile and application penetration testing, identifying and documenting security issues, improving security tooling, and collaborating with teams and leadership to drive remediation.

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

Skills

  • 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

Benefits

  • Sign-on payments
  • Restricted stock units (RSUs)
  • Health insurance, including medical, dental, vision, prescription, Basic Life & AD&D insurance, and an option for Supplemental life plans
  • Employee Assistance Program (EAP)
  • Mental Health Support
  • Medical Advice Line
  • Flexible Spending Accounts
  • Adoption and Surrogacy Reimbursement coverage
  • 401(k) matching
  • Paid time off
  • Parental leave
  • Ongoing DEI events and learning experiences
  • Endless knowledge-sharing, training, and other career-advancing resources
  • Flexible work hours and arrangements

Company Overview

  • Amazon is a tech firm with a focus on e-commerce, cloud computing, digital streaming, and AI infrastructure. It was founded in 1994, and is headquartered in Seattle, Washington, USA, with a workforce of 10001+ employees. Its website is https://amazon.com.
  • Company H1B Sponsorship

  • Amazon has a track record of offering H1B sponsorships, with 7552 in 2026, 22803 in 2025, 21175 in 2024, 19057 in 2023, 24088 in 2022, 12233 in 2021, 14881 in 2020. Please note that this does not guarantee sponsorship for this specific role.
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