PKI & Certificate Management Engineer (m/f/d)

Fresenius SE & Co. KGaA; Bad Homburg vor der Höhe; Hybrid; EUR 70.000 - 100.000; Vollzeit

Zusammenfassung

Fresenius Digital Technology in Germany seeks a PKI specialist to design, implement, operate, and enhance enterprise PKI and certificate management services across on‑prem and cloud environments.

You will administer certificate lifecycle platforms (Venafi, Keyfactor, DigiCert, AppViewX) and collaborate with security, infrastructure, and DevOps teams to enable scalable machine identities. Fluent English required; German is a plus.

Qualifikationen

• Bachelor’s or Master’s degree in computer science, information technology, engineering, or equivalent.
• Strong expertise in PKI, certificate management, and infrastructure security.
• Hands-on with certificate lifecycle management and PKI technologies.
• Deep knowledge of X.509, TLS/SSL, cryptographic concepts, and key management.
• Experience with automation and scripting; familiarity with cloud and DevOps.
• Fluent English; German is a plus.

Aufgaben

• Design, implement, and maintain enterprise PKI and certificate management solutions.
• Administer certificate lifecycle management platforms (Venafi, Keyfactor, DigiCert, AppViewX).
• Automate certificate issuance, renewal, revocation, and inventory processes.
• Manage internal and external Certificate Authorities (CAs).
• Support secure key management and cryptographic best practices.
• Integrate certificate management with cloud, infrastructure, and DevOps platforms.
• Monitor certificate health and compliance; troubleshoot trust issues.
• Develop and maintain operational procedures and documentation.
• Collaborate with security, infra, cloud, and application teams for scalable identities.
• Support audits and regulatory security requirements.

Kenntnisse

PKI

Certificate management

Cybersecurity

Automation/scripting

Cloud platforms

DevOps environments

Analytical thinking

Ausbildung

Bachelor’s or Master’s degree in CS/IT/Engineering

Tools

Venafi

Keyfactor

DigiCert

AppViewX

Jobbeschreibung

Welcome to the IT Security team at Fresenius Digital Technology! We are responsible for the implementation, management and operation of programs, projects and services for a wide range of different security capabilities in various business segments within the Fresenius Group.

We are looking for a highly motivated team member who will be responsible for the design, implementation, operation, and continuous improvement of Public Key Infrastructure (PKI) and certificate lifecycle management services. In your new role you will focus on ensuring the security, availability, and automation of digital certificates and cryptographic services across on-premises and cloud environments.

You can look forward to a working environment that is as challenging as it is attractive. One that fits the ideal of a top workplace in so many respects - while expanding our own expert skills bank.

Your responsibilities:

• Design, implement, and maintain enterprise PKI and certificate management solutions

• Administer certificate lifecycle management platforms (e.g., Venafi, Keyfactor, DigiCert, AppViewX, or similar solutions)

• Automate certificate issuance, renewal, revocation, and inventory processes

• Manage internal and external Certificate Authorities (CAs)

• Support secure key management and cryptographic best practices

• Integrate certificate management services with cloud, infrastructure, application, and DevOps platforms

• Monitor certificate health, expiration risks, and compliance requirements

• Troubleshoot and resolve certificate, encryption, and trust-related issues

• Develop and maintain operational procedures, standards, and documentation

• Collaborate with security, infrastructure, cloud, and application teams to implement scalable machine identity solutions

• Support audits, regulatory requirements, and security compliance initiatives

Your qualifications:

• Bachelor’s or master’s degree in computer science, Information Technology, Engineering, or comparable qualification

• Strong expertise in PKI, certificate management, cybersecurity, or related infrastructure security domains

• Strong hands-on experience with certificate lifecycle management solutions and PKI technologies

• Deep Knowledge of X.509 certificates, TLS/SSL, cryptographic protocols, and key management concepts

• Experience with automation and scripting technologies

• Familiarity with cloud platforms, enterprise infrastructure, and DevOps environments

• Strong analytical, troubleshooting, and problem-solving skills

• Fluent English skillsrequired; German skills are an advantage

Join #futurefresenius and apply now through our online portal to make an impact!