About the opportunity

We are seeking a Senior Product Security Engineer to drive the product security strategy and empower our engineering teams to design and build secure software across our diverse product portfolio. This role involves leading the integration of advanced security practices into cutting‑edge technologies – such as Generative AI (GenAI), Large Language Models (LLM), and data governance systems – while also ensuring the security of our microservice architecture and mobile application. You will be independently responsible for delivering robust security for every feature and service we provide to our customers.

In this role, you will:

- Independently apply advanced knowledge of security architecture to guide software engineers in building secure products and services across a diverse technology stack, including microservices, mobile applications, and cutting‑edge AI‑driven solutions.
- Serve as a technical leader and mentor, collaborating closely with engineering teams to understand and address their complex application security needs, including those related to emerging technologies like Generative AI (GenAI) and Large Language Models (LLM).
- Perform application security design reviews, threat modeling, and code reviews, ensuring security principles are embedded in every stage of the development lifecycle.
- Utilize expert penetration testing skills to assess and strengthen the security of internal and external applications and services, including AI‑powered features and traditional systems.
- Independently develop advanced tooling to support the Secure Software Development Lifecycle (SSDLC) and other security initiatives across diverse product environments.




- Build automation frameworks to enable engineering teams to deliver secure features efficiently, whether for AI solutions or traditional applications.
- Mentor and educate engineering teams and security champions on secure coding and development practices, including security considerations unique to AI and data governance.
- Empower engineering teams to independently identify and remediate vulnerabilities before they reach production, with a focus on both general application security and AI‑specific risks.
- Lead reactive incident response if a security event occurs.
- Conduct proactive and in‑depth research to detect new attack vectors, including those targeting AI technologies, data pipelines, and LLM‑based systems.

What’s in it for you

- Accelerate your career growth by joining one of Europe’s most talked about disruptors.
- Employee benefits that range from a competitive personal development budget, work from home budget, discounts to fitness & wellness memberships, language apps and public transportation.
- Come together with your team in the office for a dedicated day of teamwork each week, plus another day of your choice, and enjoy the flexibility of remote work the rest of the time. Some roles may require additional in‑office presence.
- Additional day of annual leave for each year of service.




- A high degree of autonomy and access to cutting‑edge technologies – all while working with a friendly team of peers of diverse nationalities, life experiences and backgrounds.
- A relocation package with visa support for those who need it.

Who we are

N26 has reimagined banking for today’s digital world. Technology and design empower everything we do and it’s how we are building the integral banking platform the world loves to use. We’ve eliminated physical branches, paperwork, and hidden fees for an elegant digital experience and supreme savings. Giving people the power to live and bank their way is what gets us out of bed in the morning and inspires the work that we do. We are headquartered in Berlin with offices in multiple cities across Europe, including Vienna and Barcelona, and a 1,500‑strong team of more than 80 nationalities.

Equal Opportunities

We recognize that our strength lies in our people and the varied perspectives they bring to our workforce. We strive to build talented and diverse teams to drive our business success and empower our people to reach their full potential. We genuinely welcome and encourage applications from people of all backgrounds, cultures, genders, sexual orientations, abilities, neurodiversities, and ages. We’re committed to creating an inclusive workspace where everyone feels valued and respected, free from harassment and discrimination. If there’s anything you need to make the application process work for you, please let us know by reaching out to Visit our website to learn more about Diversity, Equity, & Inclusion at N26.

Senior Product Security Engineer Madrid, Spain

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📌 Senior Product Security Engineer (Madrid)
🏢 N26
📍 Madrid