WE BUILD AI

Junior AI Engineer

WE BUILD AI

full-time

Posted on:

Location Type: Hybrid

Location: Köln • Germany

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Job Level

Junior

Tech Stack

AWSAzureCloudGoogle Cloud PlatformPython

About the role

  • You will assist in the design and implementation of AI-powered software solutions that automate processes and increase efficiency
  • You will support the deployment of existing machine learning models, adapt them with the team to specific use cases, and accompany their production deployment
  • You will develop backend services and APIs in Python, e.g., using FastAPI
  • You will become familiar with cloud-based AI services and contribute to building robust, scalable solutions for real customer requirements
  • You will work with structured and unstructured data and prepare it for AI applications
  • You will help ensure the quality and reliability of AI components, e.g., through testing, validation, and clean error handling
  • You will work closely with our AI experts, internal teams, and clients, and learn to translate business requirements into technical solutions

Requirements

  • Completed degree in Computer Science, Mathematics, Data Science, or a related field
  • Some practical experience developing with Python
  • Basic familiarity with machine learning models and large language models (LLMs)
  • Initial exposure to cloud computing is a plus (e.g., Azure, AWS, or GCP)
  • Very good German and English skills, both written and spoken
  • Enthusiasm for new technologies and the practical application of AI
  • Analytical thinking and a structured approach to work
Benefits
  • Modern 4:1 work model — 4 days focused on core tasks and 1 day per week for personal development
  • Flexible working hours tailored to your daily routine
  • Vibrant office culture including a rooftop terrace and a Nintendo Switch
  • Remote work option — flexible regarding time and location
  • Flat hierarchies and an open, collegial work environment
  • Agile working with short decision-making processes
  • Regular feedback sessions throughout the year, a mentoring program, and opportunities for personal development
  • Fair compensation structures — aligned with market trends and team composition
  • Regular team events, joint workations, and office dogs
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
PythonFastAPImachine learninglarge language modelsAI applicationsbackend servicesAPIsdata preparationtestingvalidation
Soft Skills
analytical thinkingstructured approachcommunicationcollaborationenthusiasm for new technologies
Certifications
degree in Computer Sciencedegree in Mathematicsdegree in Data Science