StepStone: Founded in 1996, part of the Axel Springer SE group, is one of the most successful international digital recruiting businesses. We operate over 54 job boards with over 67 million visits per month and employ over 3,500 people in more than 20 countries. We deliver the best experience to our candidates and the recruiters we work with from small local players to big global brands across the job industry.

We at Stepstone are disrupting the global job market. Our products are digitalising the marketplace, setting new digital recruiting standards. How? By leveraging Artificial Intelligence to transform finding jobs and finding talent into a gratifying experience. Simple. Human. Intuitive. This is StepStone. 

Our 1000 people-strong, global Product, Technology and Marketing teams are empowered to work on complex challenges that will make a significant difference across the world. We're a positive force for good with our mission being to get the right people into the right jobs. We do this by making sure people are at the heart of our strategy as well as making sure people are at the heart of the companies we work with. 

When we talk about people, we mean that we celebrate the differences, the diversity and the diverse perspectives that make communities both successful and wonderful. We strive towards creating an inclusive culture, a truly diverse organisation and an environment that is reflective of a flexible way of working for everyone. 

We are keen to spread the net far and wide to reach out to candidates from diverse backgrounds. If you’re an unconventional candidate or you feel like you’re under-represented within the industry then we’d love to hear from you.

You will join our diverse team of Data Scientists and Machine Learning Engineers and become an active part of our larger, international data science and engineering community. Our team and the community have a wide variety of backgrounds from physics to computer science to quantitative psychology, but we all share the passion: to apply our expertise to improve e-recruiting. 

Does this sound like you? Join us and become part of one of the largest German digital enterprises with more than 3.600 employees. In addition to our international footprint, we are also part of the Axel Springer SE family and its unique European family of successful companies. 

We’re always interested in working with amazing people. Just hit the Apply button – we’d love to hear from you! 

Your work 

• You will join the 3 Data Scientists and 2 ML Engineers in our team, and 40+ Data Scientists & Machine Learning Engineers across the organization, to build and improve AI systems for Stepstone. This will include classical machine learning systems for forecasting, scoring and classification, data enrichment pipelines and building blocks to train, evaluate, and serve large language models.   
• You will be actively involved in the engineering, design, implementation, and deployment needed to scale the application of our machine learning models. You can take a project from idea to experiment, to prototype, to implementation! 
• You will work with our development stack consisting of AWS SageMaker, MLFlow, Terraform, and others, and help evaluating and introducing any new tools and technologies that might help us work more efficiently. 
• You will also actively work on current LLMs, including fine-tuning and productionizing open source models at scale. 
• Together with other Machine Learning Engineers, you will help define and evolve best practices for our community. 
• You will interact with various product owners across the company for defining and understanding their problems from a technical perspective, contributing to and driving efficient formulations and solutions to these problems. 
• You will keep track of the state of the art in MLOps and scalable techniques for machine learning and optimisation, and actively implement them within the group. 

Technical Skills 

• You have good python skills and experience in applying them to business problems 
• You appreciate coding rigour and have good software development skills. 
• You are open to learn and challenge yourself in a fast-paced environment. 
• You have Industry experience with cloud services for machine learning. Hands-on experience with AWS services, specifically Sagemaker is a plus 
• You have expertise with building scalable ML & LLM solutions 
• You have good knowledge of Docker and CI/CD (e.g. Atlassian Bamboo) 
• You have good communication skills in English, both written and verbal. 
• You have experience with building and or using model management tools (e.g. mlflow) 
• Experience with LLMs is a strong plus.  

Optional Skills 

• Experience in DevOps, Cloud Operations is a plus 
• Nice to have: Experience with Kafka as some of the pipelines are event-driven 
• Nice to have: Experience with vector databases. 
• Nice to have: Experience in AWS administration and permission management 
• Nice to have: IaC (Terraform) 
• Labor market or economics knowledge is not necessary but a plus 
• Interest in data ethics and fair machine learning systems is a plus 

What we offer:  

• Medical and stomatological care
• Life insurance
• Worksmile - multibenefit platform
• Workshops, international conferences
• Hackathons, Knowledge Sharing Hours
• In-house projects
• Events and integration parties
• English lessons
• Game room and chillout zone

Join our team and contribute your expertise to make a significant impact on our company's success while advancing your IT career. We look forward to receiving your application!