Graduate IT Development - AI

Über den Job

Join the IT Development Team at Leonteq and experience the fast-paced environment of a leading Swiss FinTech company. You will help build the on-prem AI platform that powers chat, retrieval and agentic workflows across the firm.

What you'll do

• Contribute across our AI platform: the gateway, the retrieval-augmented backend, the chat interface and the agent framework.
• Help deliver AI agents end-to-end with business teams (scope, model, evaluate, deploy, monitor, iterate) and support other Leonteq teams building their own.
• Help improve retrieval quality on Leonteq's document corpus through chunking, embeddings, hybrid search and re-ranking, measured with evaluation sets and production traces.
• Contribute to the testing and evaluation framework for our AI agents and tools, so quality regressions are caught before users see them.
• Help operate the on-prem model-serving stack and investigate regressions through traces, logs, retrieval scores and GPU metrics.
• Contribute to security, governance and audit: authentication and authorisation, prompt and response logging, role-based data access, anonymisation, guardrails.

What you'll need

• Master's degree in Engineering, or a related field
• Hands-on programming experience, ideally in Python and/or TypeScript, plus Git, Linux, Docker and REST/JSON
• Comfortable using AI coding assistants as part of your workflow
• Strong interest in financial markets and AI, and a habit of staying informed about the latest trends
• A debugger's mindset and willingness to work through logs, traces and evaluation failures to find where quality or performance breaks
• Product and communication instincts: able to extract the real problem from a non-technical stakeholder and turn it into production-ready software
• Awareness of responsible AI failure modes (hallucinations, prompt injection, data leakage, evaluation gaps) and an instinct to design against them
• Fluency in business English

Nice to have

• Relevant prior work experience
• A demonstrable LLM-application project (agent, RAG, evaluation framework, fine-tune)
• Hands-on exposure to LLM APIs, agent frameworks, RAG pipelines or vector databases, with ML and NLP foundations (transformers, embeddings, prompt design, evaluation)
• Hands-on experience with tools in our stack: LangGraph, LangChain, LiteLLM, Langfuse, ChromaDB, vLLM or Ollama
• Interest in or exposure to finance, structured products or regulated environments
• Open-source contributions in the LLM or agent ecosystem
• Additional languages (German, French, or Italian)

Why you'll love working here

• Modern facilities in a prime location
• Two intensive one-week off-site training programs designed to accelerate your early career development
• Upon successful completion of the twelve-month Leonteq Graduate Program, the possibility of a permanent full-time role, setting you up for long-term success at Leonteq
• Opportunities to gain cross-departmental insights and develop a holistic understanding of the structured investment product value chain