Senior Fullstack Engineer – Python / React (all genders)

Your purpose at Kertos

As a Senior Fullstack Engineer at Kertos – the European Champion for Compliance Automation – you’ll play a key role in shaping our platform into a product of its own class. We turn compliance from a yearly fire drill into a continuous, low-friction product experience.

You’ll build end-to-end product experiences – backend to UI – that help companies stay secure, prove trust, and move faster without sacrificing quality. In a cross-functional squad, you’ll ship improvements weekly, shape product decisions, and directly influence how modern compliance is done across Europe.

OUR TEAM SETUP
We work in three cross-functional product squads, each focused on one of our core internal products or solutions:
Squad composition:

• 1 Product Manager, 1 Product Designer, 3-4 Fullstack Engineers, 1 Tech Lead
• Collaboration style: Flat hierarchies, shared ownership, and strong cross-functional teamwork

TECH STACK

• Backend: Python (Django)
• Frontend: React.js, TypeScript
• Infrastructure: AWS, Docker, Kubernetes, terraform, ArgoCD, Karpenter
• AI: LangChain, LangGraph, Langfuse
• DevOps & Tools: We experiment with cutting-edge tools like Claude Code, Cursor, Copilot, Raycast – and encourage you to push for the best setup for your work

YOUR RESPONSIBILITIES

• Build the European Champion for Compliance Automation: Develop and maintain Kertos as the cutting-edge category leader. Ship features that cut audit preparation from weeks to hours.
• Work across our full tech stack: Build end-to-end product experiences that make compliance actions feel effortless – from API to UI.
• Make automation feel magical (and safe): Improve recommendations, workflows, and system reliability so customers can trust the platform.
• Own the process: Drive your work from concept to delivery, and experience the user impact
• Boost product quality: Improve product reliability so customers can trust automation with sensitive processes
• Shape engineering excellence: Improve developer experience, quality, and delivery speed through better tooling, testing, and processes.

The skills, motivation, and mentality you should bring

• Degree in Computer Science, Informatics or equivalent experience
• Proven track record as a Software Engineer with a focus on web applications
• Experience with software testing and quality assurance practices
• Technical knowledge in parts of our stack: TypeScript (React), Python (Django / FastAPI),  databases & migrations, Docker
• Strong problem-solving skills, ownership mindset, and a passion for building impactful products
• Experience with AI engineering is a nice to have

Why Kertos

• You are Kertos: Don’t like something? Could be done better? You have the freedom to push things forward and contribute to making Kertos a great place to work
• Unique opportunity: Join the growing team of one of Europe’s most promising early stages companies and to work directly with our CTO Alex
• European funding in the millions: The EU has funded our AI research with a total of over 2 million euros
• Regular Feedback: We foster an open feedback culture and support your growth with regular 1-on-1 meetings
• Full Flexibility: Whether at the Berlin office, our Munich HQ or at your home office – we are flexible, and you'll be happy
• Keep growing: To boost your professional and personal growth, we provide you with a Personal Development Budget of 1.500€ per year
• Cutting Edge Technology: Leading VCs have invested in our vision to revolutionize how compliance measures are handled sustainably
• Mental Health: We've partnered with nilo to prioritize your well-being, offering personalized mental health support for all employees
• For Sports Enthusiasts: We subsidize your Wellpass membership for your physical fitness for a better work-life balance
• Steep learning curve: With us you get full responsibility from day 1, push topics forward independently and thus learn a lot 
• Strong onboarding: No idea about compliance and its automation? No problem, we'll turn you into an expert and provide you with an onboarding buddy
• Teamwork Makes the Dream Work: We are a strong team that supports each other, and we also have a lot of fun together beyond work and across different locations

Sounds like you are the one we’ve been looking for?

Perfect, let's have a chat! Just send in your CV. We are excited to meet you soon. 
In case you have any questions, feel free to reach out to our People & Culture team. We're happy to answer all your questions.