Job brief We are looking for a motivated Working Student (m/f/d) to join our AI & Data Science team, with a focus on data annotation and quality assurance. In this role, you will work closely with our Data team to research, collect, and annotate data from various online sources. You will play a key role in training and continuously refining our AI systems. In this capacity, you will be responsible for ensuring the quality of our AI results and contributing to the further development and optimization of our AI and machine learning products through regular reviews and feedback. As part of our AI & Data Science team, you will gain valuable hands-on experience in exciting projects and deep insights into cutting-edge technologies. In this role you will: Conduct web research to identify and collect relevant assets for AI training purposes. Accurately annotate images and other data according to project guidelines. Collaborate with the data team to ensure consistency and quality in annotations. Participate in AI quality assurance reviews to help evaluate and improve the accuracy and reliability of our AI models. Provide feedback and ideas for improving data collection workflows, annotation processes, and AI model performance. About you: You are enrolled in a Bachelor's or Master's program. You work independently, with a high level of accuracy and attention to detail. You enjoy working in an international and agile environment and have a keen sense for teamwork. You have a very good command of written and spoken English (at least level C1); German is a plus. You are available to work up to 20 hours per week during the semester and up to 40 hours per week during semester breaks. You live in Frankfurt am Main or the surrounding area. You have a valid work permit for Germany. What we consider a plus: Basic understanding of data annotation tools and software. What's in it for you? An international team achieving great things together: With us, you will meet people from all over the world who live and appreciate diversity. Flat hierarchies and an open, supportive work culture create space for collaboration and mutual respect. Shape the future actively: Whether it’s artificial intelligence, creative effectiveness, behavioural science, or marketing transformation, with us, you will work on groundbreaking topics shaping the industry. Work your way: Our hybrid working model offers you maximum flexibility. While we mainly work remotely, our co-working spaces in Frankfurt and Hamburg are always available for in-person collaboration and networking. More time for yourself: Enjoy 20 vacation days per year, plus an extra two days off on Christmas Eve and New Year’s Eve. Workation: Need a change of scenery? No problem! With us, you can work from another EU country for up to 28 days a year. Hiring Process Introductory video call with Sebastian Gerke (Head of AI & Data Science) and Meltem Alkan (People & Culture Manager) - 30 minutes Deep Dive & Case Study - 1 hour Meet the Team: We are looking forward to welcoming you to our Frankfurt office, where you will have the opportunity to meet the Brainsuite team and connect with your future colleagues. If an on-site visit isn't possible, don't worry, we will arrange a virtual meeting instead! Don't meet all the requirements? At Brainsuite.ai, we are committed to creating a diverse, equal, and inclusive working environment. We are aware that various factors can influence a person’s decision to apply for a role. We encourage candidates from all backgrounds to apply, even if not all qualifications are met. We firmly believe that different perspectives contribute to the strength and innovative power of our team. If you share our mission, we look forward to your application. We are also committed to creating an accessible environment for people with disabilities. If you have specific needs, please let us know how we can support you during the application process or at work. About us Brainsuite is an AI platform that empowers brand teams prove & improve marketing effectiveness across all touchpoints. As a trusted partner to over 400 brand teams in 30 countries, including industry leaders like PepsiCo, Unilever and Henkel, Brainsuite's comprehensive portfolio of AI applications empowers marketing teams to elevate marketing effectiveness along the process and maximize ROAS at scale.