AI Application Engineer – Full-Stack, Backend

Role Overview

• As an AI Application Engineer (m/f/d), you will develop AI-powered web applications and services for internal teams and client projects — with a focus on Python backend development, LLM API integration, database connectivity, and reliable operation.
• You will translate prototypes into production-ready, long-term solutions in a structured way.
• You will develop and extend AI-based applications — such as chatbots, assistants, or automations — and take them from concept to production.
• You will implement server-side logic in Python, integrate LLM APIs and other systems via interfaces, and ensure clean, traceable code structures.
• You will build simple web interfaces for internal tools or prototypes, connect them to the backend, and ensure functionality and usability.
• You will analyze errors, apply adjustments, and ensure the smooth operation of your applications — including deployment to server or cloud environments.
• You will work on proofs of concept, test new approaches, and gradually transition them into long-term usable solutions.

Requirements

• Backend expertise in Python: You are proficient in Python and have experience developing web applications or APIs, ideally with FastAPI, Django, or Flask.
• AI and API experience: You have worked with LLM APIs before or are eager to dive deep into these technologies.
• Data literacy: You are comfortable working with relational databases such as PostgreSQL or MySQL and understand the basics of data modeling.
• Frontend fundamentals: You can implement simple web interfaces using HTML, CSS, and JavaScript or are willing to learn modern frameworks like React, Vue, or Angular.
• Version control & deployment: You are experienced with Git and team workflows and have initial experience deploying applications to servers or cloud environments.
• Security awareness: You handle authentication, API keys, and sensitive data responsibly and focus on building secure, stable applications.
• Structured working style: You can translate business requirements into technical solutions, work independently and reliably, and keep your processes clear and traceable.
• Problem-solving skills: You identify dependencies, find pragmatic approaches, and develop stable, usable solutions.
• Curiosity & technology enthusiasm: You are interested in generative AI, modern web development, and cloud services and are motivated to keep learning.
• Language skills: You are proficient in German and have very strong English skills.

Tech Stack

• Angular
• Cloud
• Django
• Flask
• JavaScript
• MySQL
• Postgres
• Python
• React
• Vue.js

Benefits

• Respectful, flat-hierarchy environment: Flat hierarchies, appreciative leadership, and transparent decision-making — here your skills matter more than your title.
• Truly flexible working: No core working hours, home office, and many roles offer remote work — for more freedom in your job.
• Learning & development that’s fun: From learning weeks with top speakers to AI courses on our Switch platform or LinkedIn training with a paid photoshoot — we want to help you grow.
• A culture that connects: With table football nights, team challenges, our big annual Celebrate event, and regular feel-good activities — for more community and team spirit.
• Mental health & wellbeing in focus: We offer access to sessions with psychologists, coaching, and meditation sessions via OpenUp — because your mental health matters to us.
• Sustainability with real impact: Our CSR team organizes cleanup actions, donation projects, our MCI book club, and more — sustainability for us is a commitment, not a trend.
• Equal opportunity is a given: We offer fair salary bands and no gender pay gap — equal opportunity and diversity are lived values here.
• An office that feels like home: Modern technology, cozy seating areas, phone booths, a swing seat — we provide everything to help you reach your full potential.
• 30 days of vacation for full-time employees, paid special leave, JobRad leasing, and a subsidy for the Deutschlandticket — so you get the support you want.
• Family-friendly practices: We prioritize family — whether parental leave, childcare subsidies, or short-term leave — we support you so you can be there for your family without career compromises.