Information Security Specialist (Data & Document Expert) Our client, a global digital consultancy are looking for a looking for an experiencedInformation Security Specialistto join their international team and support a large EU Institution to design and implement cutting-edge solutions that protect critical information across Europe. Key Responsibilities Design and integrate backend systems with secure messaging software Define and maintain secure protocols and specifications (ebMS3, AS4, XML) Ensure systems meet the highest standards of confidentiality, integrity, and availability Apply and manage PKI & X.509 certificates for document protection Perform security testing, vulnerability assessments, and risk analysis Support teams with best practices in cryptography, TLS, OAuth2, OpenID Contribute to security planning and documentation Key Requirements 5+ years' experience in security, data/document handling, or messaging systems Strong background in PKI, certificates, and secure communication standards Solid knowledge of Linux infrastructure operations Hands-on experience with TLS, OAuth2, OpenID Excellent English communication and documentation skills (C1 level or higher) Desirable Requirements Experience with EU institutions or large international projects Knowledge of TPM/HSM cryptographic hardware Security certifications (e.G. SANS, CISSP, CISM)