Junior AI Engineer

At Coinmerce, a Dutch-founded European cryptocurrency platform, we’re on a mission to make cryptocurrency simple, secure, and accessible for everyone. Transparency is our core value, and our open-door policy supports collaboration, innovation, and team spirit in our Schiphol-Rijk office. With over 90 talented colleagues, we’re shaping the future of crypto together—are you ready to join us?

What We Offer

• Innovative Work: Be part of a team advancing new technology within the crypto industry;

• Modern Workspace: Enjoy our new office located at Schiphol-Rijk;

• Daily Perks: Free lunch, fresh fruit and weekly Friday drinks at our company bar;

• Team Events: Engage in monthly team events and bonding activities;

• Commuting & Pension: Receive commuting allowance and a solid pension plan;

• Benefits & Wellness: 25 vacation days, monthly chair massages, and access to our company gym and Alleo benefit program;

• Extra Perks: A €250 home-office setup budget after completing your probation period. 

• Yearly L&D Budget: Of EUR 2000

To expand our quantitative and engineering capabilities, we are looking for an Artificial Intelligence Engineer with a strong foundation in machine learning and data science. As an AI Engineer at Coinmerce, you will play a key role in designing, developing, and deploying AI-driven solutions to improve and automate decision-making processes across our systems. You will work closely with quant researchers, traders, and software engineers to push the boundaries of what is possible.

• Design, fine-tune, and hyper-optimise LLMs – adapt state-of-the-art models (e.g., GPT-4o, Llama 3, Mistral) with LoRA / QLoRA, PEFT, DeepSpeed, and targeted hyper-parameter tuning.

• Build production-grade RAG pipelines – integrate vector stores (FAISS, Pinecone, Qdrant) with streaming market data to fuel real-time signal generation.

• Deploy low-latency inference on MCP – manage and autoscale GPU endpoints with vLLM.

• Lead frontier research spikes – benchmark and evaluate emerging stacks (LangChain Agents, LlamaIndex, vLLM).

• Collaborate across departments to discover and prioritise business bottlenecks where AI and automation can deliver measurable impact.

• Drive solutions from prototype to production while ensuring robustness, reproducibility, and maintainability.

What you bring: 

• 0-2 years building and shipping ML / NLP systems in trading, fintech or other data-driven domains.

• Deep grounding in maths, stats and optimisation; fluent in Python + PyTorch / Hugging Face.

• Hands-on with vector DBs & RAG frameworks (LangChain, LlamaIndex) and modern prompt-engineering tactics. 

• Proven track record fine-tuning open-source LLMs (Llama, Mixtral, Mistral).
  Rigorous software-engineering habits: clean code, testing culture, secure SDLC.