Senior Machine Learning Engineer – Remote LLM & Multi‑Agent AI Spain

Further Details

Join a forward‑thinking organization as a Senior Machine Learning Engineer, focusing on the design and optimization of large language models and multi‑agent systems. The position is remote and situated in Castilla y León, Spain, offering the chance to influence the direction of AI‑driven social platforms. Your primary duties will involve constructing robust post‑training workflows, enhancing model performance through fine‑tuning, and ensuring safety and reliability in dialogue applications. Candidates should possess deep Python skills, experience with Transformers, and a strong grasp of MLOps practices.

Senior Machine Learning Engineer – Remote LLM & Multi‑Agent AI

This high‑impact role offers the chance to shape the future of AI in a dynamic, globally distributed team. The position is based in Castilla y León, Spain, and is ideal for professionals seeking remote work in the technology sector.

Key highlights include leading large language model development, designing multi‑agent systems, and ensuring model safety and performance. Candidates with strong Python skills and MLOps experience are especially encouraged to apply.

• Senior level position
• Remote work arrangement
• Focus on LLM and multi‑agent AI
• Competitive salary and benefits

Skills

• Advanced proficiency in Python programming
• Experience with Transformers and LLM fine‑tuning techniques
• Strong understanding of multi‑agent system design
• Expertise in dataset construction and curation
• Solid MLOps knowledge including model deployment and monitoring
• Ability to build evaluation frameworks for dialogue, memory, and safety

Duties and Responsibilities:

• Lead the development of LLM post‑training pipelines
• Fine‑tune language models to improve dialogue, memory, and safety
• Design and implement multi‑agent AI systems
• Create robust evaluation and deployment workflows
• Collaborate with cross‑functional teams to integrate models into products

How to apply

• 💼 Prepare your updated CV highlighting relevant ML projects
• 📅 Review the application deadline: 18 December 2026
• 🌐 Click the Apply Now button on the job posting
• 📝 Complete the online application form with personal and professional details
• 📎 Attach any required documents (degrees, certificates, portfolio)
• ✅ Submit your application before the closing date