Senior Software Engineer – Backend (AI)

Were hiring multiple Senior Backend Engineers into our AI team in London. This team owns Personios AI experiences end to end. That means the model layer (how we interact with Bedrock, prompt tuning, RAG), the platform underneath it (infrastructure, data flow, the APIs our LLMs are exposed through), and the customer-facing side (how users actually trigger and interact with these features). Alongside the Personio Assistant, this team owns the agentic architecture that Personios next generation of…