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Orange

Global telecommunications provider delivering mobile services

Expert Incident Response Engineer

Security Operations & Incident ResponseConfirmed live in the last 24 hours
Full-timeLyon, FranceNo salary listedIn-person

About the Job

Requirements

  • At least three years of experience in information security.
  • Solid experience in penetration testing or SOC L2/L3; experience in forensic analysis, network analysis, and incident validation is desirable.
  • Ability to speak, read, and write technical texts in French and English.
  • Proficiency in GNU/Linux and Windows environments, including system artifacts, event logs, and file structures.
  • Experience working with cloud environments including M365/Entra ID and AWS.
  • Ability to automate recurring tasks using a scripting language such as Python or PowerShell.

Responsibilities

  • Investigate client information systems following a compromise, conducting end-to-end investigations including initial incident qualification, evidence collection, and forensic analysis to reconstruct the incident timeline.
  • Determine the root causes of incidents.
  • Estimate the technical and business impact of incidents.
  • Analyze attacker actions across the compromised environment as exhaustively as possible.
  • Prepare reports and deliverables.
  • Design and develop advanced tools to support analysis.
  • Participate in internal development projects.
  • Contribute to post-incident lessons learned.
  • Conduct digital investigations across different operating systems.
  • Establish forensic timelines.
  • Analyze volatile memory.
  • Analyze malware, including contacted servers, persistence mechanisms, detection artifacts across an estate, and propagation.
  • Reverse engineer and decrypt malware-related elements, including network communications, configuration files, and files containing stolen data.
  • Participate in on-call coverage for critical incidents as needed.

Desired Qualifications

  • Experience in forensic analysis, network analysis, and incident validation.

About the Company

Orange

Global telecommunications provider delivering mobile services

Orange is a global telecommunications company providing mobile, fixed-line, and internet services to millions of customers. Its products work by running cellular networks, fixed broadband, and digital services that let people make calls, send messages, browse the web, and use apps on smartphones and other devices; brands like Orange are used across services and regions to offer plans, data, roaming, and customer support. The company differentiates itself through its long history of growth via strategic acquisitions and a single, unified global brand, giving it a broad European and international footprint with integrated mobile, fixed-line, and digital offerings. Its goal is to connect people and businesses worldwide by delivering reliable communications and digital services while expanding its network reach and continuing to evolve in the telecom landscape.

Company size
10,001+
Company stage
IPO
Headquarters
Paris, France
Founded
1988

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