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Thales

Global defense and aerospace electronics

Expert Cybersécurité Mobile / Pentester

Offensive Security & TestingConfirmed live in the last 24 hours
Full-timeLa Ciotat, FranceNo salary listedHybrid

About the Job

Requirements

  • A Bac+5 higher education qualification in Computer Science, Cybersecurity, or Embedded Systems.
  • At least 3 to 5 years of experience in software security, ideally in the mobile ecosystem.
  • Significant experience in several areas: Android and iOS penetration testing, including identifying and implementing complex attack paths; reverse engineering and code analysis; security architecture review; threat modeling; vulnerability management and risk analysis; or security evaluation or certifications such as CSPN or Common Criteria.
  • In-depth knowledge of Android and iOS systems and associated threats; rooting and jailbreaking; mobile platform security mechanisms; sandbox and other security-mechanism bypass; hooking, debugging, and dynamic-analysis frameworks; applied cryptography and design analysis, including key management and security protocols; low-level system concepts including processes, virtual memory, system calls, kernels, and system services; and Linux, Windows, and macOS environments.
  • Mastery of some or all of Burp Suite, Frida, Ghidra, IDA Pro, GDB, network-analysis tools, and reverse-engineering tools.
  • Ability to work in international, multidisciplinary environments.

Responsibilities

  • Perform penetration tests on Android and iOS applications to identify and exploit complex vulnerabilities.
  • Carry out reverse engineering and code analysis.
  • Conduct risk analyses and threat-modeling activities to identify and assess threats and propose suitable countermeasures.
  • Support Product, Development, and Architecture teams in applying security-by-design principles.
  • Contribute to vulnerability management, risk assessment, and remediation-plan definition.
  • Monitor threats, attack techniques, and developments in the mobile ecosystem.
  • Conduct research on new security technologies and applications of artificial intelligence to cybersecurity.
  • Develop and evolve mobile-security methodologies, tools, and standards.
  • Train and support development teams and cybersecurity experts.
  • Contribute to technical deliverables, security reports, and assessments for clients and evaluation organizations.

Desired Qualifications

  • Experience with artificial-intelligence approaches applied to cybersecurity activities, research, or security testing.

About the Company

Thales

Global defense and aerospace electronics

Thales designs and delivers critical technology for aerospace, defense, and digital security. Its products include electronics, software, and data-security systems that power air travel, payments, and modern military platforms, by integrating hardware and software to build systems such as avionics, radar, cybersecurity, and secure communications that collect sensor data and protect networks. It stands out through deep industrial experience, end-to-end solutions across defense, aerospace, and cybersecurity, and a focus on AI and quantum tech, aided by strategic acquisitions and partial state ownership. Its goal is to provide reliable, secure, and connected technologies that support national security, public safety, and everyday life by solving complex security and connectivity challenges.

Company size
10,001+
Company stage
IPO
Headquarters
Meudon, France
Founded
1893

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