APT-ONE GmbH, a Berlin-based cybersecurity consulting firm, seeks a Senior Consultant for Audit & Compliance to conduct security audits, manage ISMS implementations, and advise on regulatory compliance including NIS2, ISO 27001, and AI Act requirements. The ideal candidate brings 5+ years of IT security audit and compliance experience, seeks flexible remote work, and wants to develop deep expertise in modern security architectures while working on high-impact projects.