¡At Oesia Group, we are growing! We would like count on you for our next job offer:
We are looking fora Generative AI / LLM Engineer to join an important Project located in Madrid in Remote job modality.
Requirements:
- University degree in Computer Engineering, Telecommunications, or in the field of science or technology.
- Four years of experience in the field of AI, with a focus on LLMs and/or Generative AI over the last two to three years.
- Hands-on experience with frameworks and libraries such as LangChain, LlamaIndex, or similar.
- Experience with RAG: embeddings, vector databases, strategic chunking, and advanced retrieval.
- Proficiency in Python, APIs, and production environments.
Experience integrating with cloud providers and models (OpenAI, Google, AWS, Azure, Meta, etc.).
- Deep knowledge of techniques such as advanced prompt engineering, fine-tuning, LoRA/QLoRA, and LLM evaluation and safety.
- Experience in designing and evaluating architectures for LLMs in production.
What will your responsibilities be?
- Design, development, and optimization of systems based on LLMs and Generative AI.
- Building RAG pipelines, semantic indexing, and advanced retrieval strategies.
- Design of reasoning chains and complex conversational flows.
- Development and integration of autonomous agents / Agentic AI, managing tools, memory, orchestration, and workflows.
- Fine-tuning, advanced prompting, and implementation of alignment techniques and model personalization.
- Integration with APIs, cloud services, and the MLOps ecosystem for generative models.
- Model evaluation, definition of metrics, and continuous performance improvement.
- Applied research on new architectures, open-source models, and emerging techniques.
- Mentoring junior profiles and close collaboration with business teams to define solutions.
What we offer you?
- Work in a multinational company recognized as one of the best companies to work for in 2025, according to Actualidad Economica and Forbes.
- Stable and innovative technological projects for leading national and international clients.
- Career plan: we offer an attractive professional career based on experience and personal potential within a continuously evolving company with solid growth.
- Free access to various training platforms, providing you with a wide multidisciplinary catalog.
- Adaptable compensation.
- An equal, diverse company with great Corporate Social Responsibility.
- A positive, healthy, and cooperative work environment. Teamwork is the cornerstone of the company's project successes.
Have you heard of us?
With over 3.800 professionals in 20 corporate offices across Spain, Brussels, Latin America, and Asia, it generates quality employment and helps people grow in technical careers.
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