Head of Security

• Act as security owner for Heartbeat AI GmbH, the software company within the 1KOMMA5° group
• Lead Team Trust within the Core Platforms domain
• Serve as the security point of contact for the technology organization and wider group
• Lead team direction, hiring, growth, health, and mentoring
• Protect cloud infrastructure, applications, and connected hardware in customers' homes
• Own cybersecurity frameworks and regulations applicable to energy companies
• Scale internal permissions and secure development through identity and access management
• Build security capabilities that developers use by default
• Translate security risk for non-technical decision-makers, including C-level stakeholders
• Build the security team and security framework while remaining hands-on with the technology

• Several years of experience in security engineering or security leadership
• Experience leading or mentoring engineers
• Technical background in cloud security, preferably Google Cloud Platform
• Depth in infrastructure, CI/CD, identity, and application security
• Experience building a security framework from scratch or close to it with limited initial resources
• Familiarity with NIST CSF and ISO 27001
• Ideally, familiarity with NIS2 and KRITIS
• Strong communication skills and ability to explain security risk to engineers, product managers, and senior business stakeholders
• Pragmatic, outcome-oriented approach
• Excellent English communication skills
• German is a plus
• Hands-on coding experience is a bonus
• Experience with security in AI-assisted engineering setups, including agentic workflows and guardrails, is a bonus
• Experience running or coordinating security incident response is a bonus
• Experience with security and IT controls in a company preparing for a public listing is a bonus
• Experience in a scale-up environment with roughly 100 to 1000 employees is a bonus
• Interest in climate tech and renewable energy is a bonus

• International, dynamic, and highly motivated team
• Direct impact on the energy transition and climate
• Learning from smart colleagues
• Direct contact with core decision-makers
• Flat hierarchies and short decision paths
• Remote work Germany-wide with a genuinely flexible remote policy
• Access to offices in Hamburg, Berlin, and Munich whenever desired
• EGYM Wellpass benefits and discounts
• Futurebens benefits and discounts
• Job bike leasing, including city bike or e-bike