LINAGORA

Senior Software Security Engineer / PKI

In short

Senior security engineer role focused on designing, implementing, and maintaining PKI, encryption, authentication, and certificate-management solutions for critical client infrastructures. Posted by LINAGORA, an open-source software and security expertise company, based in Issy-les-Moulineaux, France with a flexible remote work policy. Requires 10+ years of cybersecurity experience with deep PKI expertise, strong cryptography and Linux security skills, and significant contributions to open-source security projects. Also involves acting as primary expert for resolving critical client incidents and advising engineers and clients on security best practices.

Location
Issy-les-Moulineaux, France, with a flexible remote work policy
Company
LINAGORA develops open-source software and provides security expertise for businesses and public administrations facing critical incidents and complex infrastructure challenges.
What you will do
•Act as the primary security expert for diagnosing, resolving, and preventing critical client incidents.
•Design, implement, and maintain public key infrastructure for client environments.
•Develop and integrate encryption, authentication, and certificate-management solutions.
•Contribute modules and expertise to open-source security projects and communities.
•Guide engineers and advise clients on IT security and PKI best practices.
•Help evolve security solutions by anticipating threats and proposing improvements.
Requirements
•10+ years of cybersecurity experience with substantial PKI expertise.
•Strong knowledge of cryptography, PKI management, TLS/SSL, X.509 certificates, network security, and application security.
•Experience developing and implementing robust security solutions for complex and critical environments.
•Significant contributions to open-source security projects and recognition within relevant communities.
•Strong Linux system administration and security-management skills, including Red Hat, CentOS, or Debian.
•Fluent spoken and written English for collaboration with international teams.
Nice to have
•Experience with OpenSSL, GnuPG, and security frameworks used in open-source environments.
Culture & Benefits
•Flexible remote work policy.
•Collaboration with an open-source security team focused on innovation.
•Close work with the OSSA Director and client organizations.
•Permanent employment contract (CDI).

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