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Senior Security Engineer (m/f/d)

Permanent employee, Full-time · Bonn

About us
LeanIX aspires to become the number one SaaS solution to modernize IT architectures. And we are on a good way. Hundreds of well-known brands such as adidas, Zalando, and Vodafone make better decisions in IT with LeanIX. 

But LeanIX is not just the product, it is also a great place to work. Colleagues from dozens of countries jointly make our vision reality. Yes, we have to work hard to achieve our ambitious goals. But we have everything to do so. We have invested a lot in a working environment that allows everyone to thrive. We believe in open access to leadership, transparent communication, personal development, a modern airy working environment, and that world-class teams deserve the best software stack money can buy.


We are looking for an IT Security engineer, who will lead our product, system and data security function. As part of our Engineering Team you will secure the LeanIX SaaS Platform with datacenters all over the world. Within the DevOps Team you will continuously build and improve the security of LeanIX for our leading international enterprise costumers as data protection is a key to our success.
  • Provide subject matter expertise on authentication, systems, and network architecture security
  • Provide security expertise and guidance on a constant stream of new projects and technologies
  • Perform security assessments of core corporate and cloud infrastructure (AWS, Azure,…)
  • Harden our clients, servers and networks against exploitation
  • Build and/or implement tools that aid in enhancing the security posture of our SaaS tool LeanIX
  • Collaborate with Pre-Sales and Customer Success teams during projects to secure our services and data
  • Organize and execute penetration tests supported by external experts
  • Hands on IT-Security: Identify issues, Propose solutions, implement solutions with Engineering Team
  • Ensure security of MacBooks and secure remote work of our Employees (VPN, Log Files, hard disc encryption,…)
  • Candidate must have more than 3-5 years of true industry experience within Security
  • Knowledge of the threat landscape and experience with attacks and mitigation methods
  • Ability to develop tools using an interpreted programming language (PHP, Python, Ruby, etc.)
  • Security generalist with a firm grasp of or meaningful experience in many of the following areas:
    • Operating systems internals and hardening (OS X, Linux)
    • Application level security controls for client endpoints
    • Networking protocols and operations
    • AWS, Azure and cloud (SaaS) security
    • Vulnerability management and remediation
    • Applied cryptography and key management
    • Authentication, authorization and directory services
    • Security information and event management


Thank you for considering a career at LeanIX. Please fill out the following form. In case you are experiencing problems with the document upload, mail your documents to

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English only Unsere Job-Beschreibungen sind nur in Englisch verfügbar. Da wir zahlreiche Unternehmen betreuen, die international aktiv sind, ist Kommunikation in Englisch wichtig für alle unsere Rollen. Deine Bewerbungsunterlagen können in Deutsch oder Englisch verfasst sein.
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