Senior IAM & Digital Signature Expert

About Atos Group

Atos Group is a global leader in digital transformation with c. 56,000 employees and annual revenue of c. €7.2 billion (at the go-forward perimeter), operating in 54 countries under two brands - Atos for services and Eviden for products and systems. European number one in cybersecurity and a leader in cloud, Atos Group is committed to a secure and decarbonized future and provides tailored AI-powered, end-to-end solutions for all industries. Atos Group is the brand under which Atos SE (Societas Europaea) operates. Atos SE listed on Euronext Paris. 

The purpose of Atos Group is to help design the future of the information space. Its expertise and services support the development of knowledge, education and research in a multicultural approach and contribute to the development of scientific and technological excellence. Across the world, the Group enables its customers and employees, and members of societies at large to live, work and develop sustainably, in a safe and secure information space. 

We are looking for an experienced Expert in Digital Signatures, PKI & Trust Services to join our Cybersecurity and Digital Identity team.

In this role, you will design, implement and optimize secure digital trust solutions supporting 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.

This is an excellent opportunity for professionals passionate about PKI, IAM, Digital Identity, Electronic Signatures and Trust Services.

Your Responsibilities

• Advise business and technical stakeholders on digital signature and trust service solutions
• Gather, analyze 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 programs

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

Atos
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Let’s grow together.

Choose your future. Choose Atos.