About Atos Group Atos Group is a global leader in digital transformation with approximately 56,000 employees and annual revenue of about €7.2 billion, operating in 54 countries under the Atos and Eviden brands.
Expert in Digital Signatures, PKI & Trust Services
In this role you will design, implement and optimize secure digital trust solutions that support enterprise identity, electronic signatures and trust services. You will work with international clients and multidisciplinary teams to deliver scalable, compliant and business‑critical cybersecurity solutions.
Your Responsibilities
- Advise business and technical stakeholders on digital signature and trust service solutions
- Gather, analyse and translate business and security requirements into technical solutions
- Design, implement and maintain Public Key Infrastructure (PKI) environments
- Support digital signature, certificate management and trust service platforms
- Integrate authentication, authorization and trust services with enterprise applications
- Configure and troubleshoot IAM and Single Sign-On solutions
- Participate in architecture design, technology selection and solution reviews
- Develop technical standards, operational procedures and security best practices
- Ensure compliance with security and regulatory requirements
- Support workshops, technical discussions and client-facing activities
Required Skills & Experience
Must Have
- Minimum 5 years of experience in
- Public Key Infrastructure (PKI)
- Digital Signatures
- Identity & Access Management (IAM)
- Digital Identity, Cybersecurity or Trust Services
- Strong understanding of
- Electronic signatures and digital trust concepts
- Authentication and authorization mechanisms
- Cryptography fundamentals
- X.509 certificates and certificate lifecycle management
- TLS/SSL security concepts
- Hands‑on experience with
- Keycloak
- Red Hat SSO
- OIDC
- OAuth2
- REST APIs
- Web Services
- WildFly / JBoss Administration
- Windows Server PKI
- TLS configuration and troubleshooting
- German language skills (B2+)
- English language skills (B2+)
Nice to Have
- Knowledge of
- eIDAS / eIDAS 2.0
- ETSI standards
- Qualified Trust Services
- PKI governance and certificate policies
- Experience with
- Digital Identity platforms
- Certificate management solutions
- HSM integration
- Long-Term Validation (LTV)
- Digital archiving solutions
- Highly available and scalable security architectures
- Scripting skills (JavaScript and/or PowerShell)
- Previous experience in
- Cybersecurity consulting
- Regulated industries
- Enterprise-scale security transformation programmes
What We Offer
- Participation in international cybersecurity and digital transformation projects
- Opportunity to work with modern IAM, PKI and Trust Services technologies
- Hybrid or remote-friendly working model
- Collaborative and multicultural environment
- Continuous learning and professional development opportunities
- Access to complex, enterprise-scale security initiatives
- Long-term career growth within a global technology organization