AI Engineer - AI Booster Team

idealo's AI Booster Team accelerates the company's adoption of generative AI technology by partnering with product teams, building reusable AI workflows, and championing best practices across the company. You'll shape and deliver scalable LLM systems and agentic workflows that turn ideas into production launches - fast., * Collaborate with cross-functional teams to design, prototype, and ship LLM-powered features from ideation to live in weeks.

• Architect and build advanced LLM workflows and agentic systems - multi-agent orchestration, tool use, and execution flows.
• Select and evaluate the right models and inference infrastructure for the task, balancing cost, latency, quality, and safety.
• Develop reusable AI building blocks (e.g., sophisticated RAG pipelines, evaluation frameworks, model adapters) that scale across products and teams.
• Champion automated evaluations, human-in-the-loop checks, and continuous feedback loops to ensure quality, reliability, and cost effectiveness.
• Serve as a technical mentor - run office hours, reviews, and workshops to level up GenAI skills across idealo.

• Professional software engineering experience (3 + years) with at least 1+ years hands-on building LLM-centric systems or related generative AI applications.
• Knowledge of LLM workflows, RAG design, embeddings, vector databases, prompt strategies, and multi-agent patterns.
• Experience with model evaluation, selection, performance optimization, and cost-effective deployment across cloud or hybrid environments.
• Proficiency in Python (core), and familiarity with at least one modern engineering stack (e.g., FastAPI, Node.js/TypeScript, React) - with bias toward backend, pipelines, and automation logic over UI.
• Comfortable with ML/AI infrastructure & orchestration (cloud services, containerization, CI/CD, monitoring).
• High personal agency - you stay on top of the latest GenAI research and tooling, contribute to team knowledge, and push for pragmatic outcomes with a bias for action.
• Evidence of exceptional achievement - like open-source contributions, AI tooling, competitions, publications, or widely-used engineering artifacts.

You don't tick every box? No worries! We hire people, not checklists - and value motivation and growth.

idealo is a Berlin-based internet success story. Founded in 2000, we started with the mission of helping our users to make the best online buying decisions. 
Today, we are one of the leading product and price comparison platforms in Europe and one of the largest portals in the German e-commerce market. We achieved this by obtaining more than 2.5 million page impressions per day, 50.000 connected Online-Shops, and over 560 million product offers. With a strong focus on convenience, transparency, and technological expertise, we enable our partners to grow their business on idealo as a high-quality traffic and sales driver. 

As a member of our team, you can look forward to working with a large degree of freedom in an international and inspirational environment. We are located in the heart of Berlin but believe that we are happier and can work more effectively when the job fits our individual lives. That's why we offer our employees the freedom to choose their workplace. At idealo, we are convinced that flexibility is fundamental for hybrid working and offer permanent work from anywhere in Germany as well as temporary from abroad. 

We offer a unique idealo spirit. Your ideas are the driving force that moves our business forward. Not only our product portfolio is diverse, but also the people who work on it. We want you just as you are – regardless of origin, religion, gender, sexual orientation, or a degree of disability.