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Decathlon

Designs and sells sports equipment and clothing

Offensive Security Engineer

Offensive Security & TestingConfirmed live in the last 24 hours
Full-time

About the Job

Requirements

  • At least 3–4 years of operational experience in offensive security or penetration testing.
  • Strong skills in web/API auditing, OWASP vulnerabilities, and Active Directory.
  • Knowledge of IAM mechanisms and security for AWS, GCP, and Azure cloud services, including Lambda, S3, and Cloud Run.
  • Experience scripting and developing custom tools using Python, Go, Bash, or PowerShell.
  • Strong communication skills to explain complex topics to non-technical stakeholders, including Product Owners and leadership.
  • Teamwork, knowledge sharing, and mentoring capabilities.
  • Ongoing curiosity and monitoring of emerging threats, including CVEs and CTFs, and uncompromising ethical rigor.
  • Technical English proficiency in writing, reading, and speaking.

Responsibilities

  • Conduct in-depth penetration tests on web applications, APIs (REST/GraphQL), internal infrastructure, and Active Directory.
  • Assess the security of cloud environments across AWS, GCP, and Azure; identify misconfigurations and privilege-escalation paths.
  • Participate in Red Team exercises simulating real-world tactics, techniques, and procedures to test detection and response capabilities.
  • Work with the Blue Team/SOC to validate and improve detection rules based on technical findings.
  • Write clear audit reports with risk analyses and actionable recommendations for technical teams and decision-makers.

Desired Qualifications

  • Experience with command-and-control frameworks such as Sliver, Havoc, Cobalt Strike, and Adaptix; EDR/AV evasion; malware development; or AI for cybersecurity use cases.
  • Certifications such as OSCP, OSEP, OSED, CRTO, CRTL, or GRTP.

About the Company

Decathlon

Designs and sells sports equipment and clothing

Decathlon designs, makes and sells sports equipment, footwear and clothing for people ranging from beginners to competitive athletes. Its own sports brands cover activities such as hiking, cycling, running and swimming, with products developed around the needs of each sport. Teams manage product design, production and distribution, combining physical stores with online shopping to sell directly to consumers while also carrying selected partner brands. Revenue comes from sales of sporting goods, with its own product development and purchasing operations supporting a broad assortment at accessible prices. Founded in 1976, Decathlon is headquartered in Villeneuve-d'Ascq, France.

Company size
10,001+
Company stage
Not listed
Total funding
Not listed
Headquarters
Not listed
Founded
1976

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