Your purpose at Kertos As a freelance 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 your delivery: Drive your work from concept to delivery and see its impact on users
• 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.

This engagement is project- and outcome-focused and does not constitute an employment relationship. 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

• High autonomy & impact: You’ll have the freedom to challenge ideas, improve solutions, and directly influence the product through your contributions
• Unique opportunity: Collaborate directly with the CTO Alex and product leadership at one of Europe’s most promising early-stage companies
• European funding in the millions: The EU has funded our AI research with a total of over 2 million euros

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.

Please note: this is a freelance role. You must be legally set up as a freelancer or independent contractor in your country of residence.

About Us Founded in 2021 and backed by investors such as Portage, Redstone, 10x Founders, Seed + Speed, and xdeck, we are on a rapid growth trajectory. Today, we are a team of over 45 ambitious talents from 15 nations, united by our mission to transform compliance from a challenge into a seamless standard. With our platform, we help companies implement regulatory requirements effortlessly, cost-effectively, and stress-free. From our offices in Berlin and Munich, we are driving this vision forward – and this is just the beginning.