Internal Auditor | Internal Auditor / Revisor (w/m/d)

United Internet AG

Karlsruhe, Baden, Baden-Württemberg, Deutschland
Published Apr 17, 2026
Full-time
Permanent

Job Summary

As an Internal Auditor at United Internet, you will play a critical role in evaluating and optimizing business processes across a diverse portfolio of international brands like 1&1 and IONOS. Your daily responsibilities involve planning and conducting internal audits and IT audits both domestically and abroad. You will analyze business processes for economic efficiency, legality, and functionality, identifying risk potentials independently. Beyond assessment, you will act as a consultant to various business units, developing process improvements and tracking the implementation of agreed-upon measures. This role is highly visible, requiring you to draft comprehensive audit reports and present findings to senior stakeholders. The position is particularly attractive due to its broad scope across multiple industries (telecommunications, web hosting), the opportunity for mobile work up to two days a week, and a culture that emphasizes flat hierarchies and continuous professional development through internal training and networking.

Required Skills

Education

University degree in Business Administration, Business Informatics, or a related field of study.

Experience

  • Professional experience in internal auditing or at a public accounting firm
  • Experience in evaluating business processes and projects regarding efficiency and legality
  • Proven track record in identifying risk potentials and optimizing corporate structures
  • Experience in IT auditing and technical environments
  • Ideally holds professional certifications such as Certified Internal Auditor (CIA) or Certified Information Systems Auditor (CISA)

Languages

German (Fluent)English (Fluent)

Additional

  • Willingness to travel for domestic and international audits; ability to work mobile up to 2 days per week.