(Senior) Java Developer (m/f/x) - PKI

Location: Düsseldorf, Germany
Business Unit: Information Security

Your tasks

  • Develop, maintain and service authentication and PKI systems based on PKI standards and Java
  • Work, taking into account international protocol and security standards, on various platforms using structured design and test methods
  • Actively participate in the implementation of project-related customer orders and product development

Your profile


  • Good knowledge in the areas of PKI (CA, OCSP, LDAP), cryptography and electronic signatures especially ASN.1, X.509, relevant PKC standards (#1, #7, #10, #11, #12) and CMS
  • Up-to-date and profound knowledge in the field of software development
  • Practical knowledge of development with Java frameworks such as Bouncy Castle, JCA/JCE and knowledge of Maven, JIRA, as well as Git
  • Avid interest in learning innovative technologies
  • You are a team player, have good communication skills and are able to familiarize yourself with new tasks independently
  • Good command of German and English

Advantageous if you have knowledge of:

  • Current ETSI standards, such as CAdES, XAdES, PAdES
  • Handling OSGi-based applications and open source technologies of the Apache Software Foundation and the Eclipse Foundation
  • Java SE and Java EE technologies, such as JAXB, Servlets, JAX-WS, etc.


We offer

  • An open and friendly corporate global culture characterized by a constructive and cooperative environment
  • Many learning opportunities to deepen your skillset and to support your professional growth
  • Personal coverage by a travel health insurance, a private accident insurance and a company pension plan
  • Access to specific education programs
  • Flexible working hours and the option to work hybrid & mobile, independent time management
  • Challenging tasks and close cooperation with a competent team
  • A dynamic company where teamwork and relationship management are valued


Do you feel addressed?

Then we look forward to receiving a meaningful application stating the earliest possible starting date and your salary expectations.
Apply now

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