Yttrium is a growth equity firm specialized in B2B technology. We partner with management teams of high-growth businesses and help them scale into global digital leaders. We currently manage over EUR 750m across more than 20 portfolio companies, supported by a team of 20+ investment professionals and Advisory Partners based in Frankfurt, Munich and London.
Data and AI are central to how we source, diligence and monitor investments. Over the past two years we have built “Scale”, our in-house data and AI platform: a data warehouse with ingestion pipelines, a suite of agentic workflows and MCP servers, and two full-stack applications used day-to-day by the investment team. The foundation is live and in production; the roadmap ahead is substantial. We are now looking for a Junior Data & AI Engineer to join our Frankfurt office and help take the platform to the next stage.
You will join a two-person data and AI team as the second hire, working directly with our in-house data scientist who leads the data and AI workstream and has built the current version of Scale. Beyond the core team, you will work closely with a Manager, a Principal and two Partners from the investment team, who are actively involved in shaping priorities, reviewing work and using what we build day-to-day. The team is based in Frankfurt.
On day one you will be plugged into a real, production platform with established conventions, agentic workflows and two full-stack web applications. Your job is to help extend it: new data sources, new agents, new features and everything in between. This is an unusually broad role for a junior hire. You will work across the full stack, ship production code used by investment professionals within your first weeks, and learn from and ship alongside the data scientist who has been building the platform.
The role is not purely technical. A meaningful part of the job is helping the rest of the firm get more out of data and AI, by rolling out tools, acting as a sparring partner for the investment team on technical due diligences and exchanging learnings with portfolio companies on AI and data topics.
We are not looking for someone who already knows every tool in the stack. We are looking for someone who is motivated to learn fast, take ownership and build at the intersection of data, AI and investment.
Please send your CV, university transcripts, a short note on what you have built recently (links to repos, demos or write-ups welcome) and your earliest start date to careers@yttrium.com. We review applications on a rolling basis.
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