About The Role

We're looking for an experienced AI Engineer to join our innovative team and drive the development of cutting‑edge applications leveraging Large Language Models (LLMs). The adecuado candidate will have a strong background in Python development, machine learning, and a proven track record of deploying robust, scalable AI solutions.

Key Responsibilities

- Design, develop, and deploy production‑ready systems that integrate and utilize state‑of‑the‑art LLMs (e.g., GPT, Llama, specialized models).
- Implement and optimize data pipelines for model training, fine‑tuning, and inference, ensuring high performance and data quality.
- Develop robust, scalable, and maintainable Python codebases, APIs, and microservices to support LLM‑powered applications.
- Collaborate with product managers and cross‑functional teams to translate business requirements into technical specifications and viable AI solutions.
- Conduct experimentation, evaluation, and iteration on model/algorithm performance, efficiency, and cost‑effectiveness.
- Stay current with the latest advancements in LLMs, AI/ML methodologies, and relevant tooling (e.g., LangChain, Hugging Face, vector databases).
- Ensure responsible AI practices, including model fairness, transparency, and security, are integrated into all development phases.

Required Qualifications

- 3+ years of professional experience in machine learning, AI engineering, or a related field.
- Experience fine‑tuning LLMs for domain adaptation.
- Hands‑on experience building algorithms leveraging Large Language Models (LLMs).




- Know‑how on the process of experimentation for model/algorithm improvements.
- Expertise in Python and its relevant data science/ML libraries.
- Strong understanding of natural language processing (NLP) fundamentals and machine learning algorithms.
- Experience with MLOps principles and tools for managing the end‑to‑end machine learning lifecycle.
- Bachelor's or Master's degree in Computer Science, Engineering, Statistics, or a related quantitative field.

Preferred Qualifications

- Familiarity with frameworks like LangChain or LlamaIndex for building LLM applications and retrieval‑augmented generation (RAG) systems.
- Experience with vector databases (e.g., Pinecone, Milvus, Chroma) and embedding models.
- Contributions to open‑source projects or a strong portfolio demonstrating relevant AI/LLM work.

Why Join Us

- Opportunity to work on challenging, high‑impact projects at the forefront of AI innovation.
- A dynamic work environment with an international team, where collaboration and diversity thrive.
- Comprehensive private health coverage to ensure your physical and mental well‑being.
- Company‑sponsored gym membership to support your fitness goals.
- Hybrid work model offering flexibility to balance your professional and personal life.
- Coffee, tea, beverages, and snacks to keep you fueled throughout the day.
- Pet‑friendly office with stunning beach views.
- Company events to celebrate achievements and enjoy time together.
- Get equipped with a MacBook to enhance your productivity and work experience.

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📌 Senior AI Engineer - Biorce (Barcelona)
🏢 Talent
📍 Barcelona