Senior Applied LLM Engineer (LLM & Agentic Systems)

Senior Applied LLM Engineer (LLM & Agentic Systems) Contract/freelance My client is a fast-growing AI-powered fintech business transforming accounting through intelligent automation. They are seeking a Senior LLM Engineer to lead the development of cutting-edge LLM and agentic AI solutions that deliver real business value. Design, develop and deploy advanced AI and machine learning solutions powered by Large Language Models (LLMs).Help shape and influence the company's data science and AI strategy.Build scalable ML models, AI systems and production-ready data pipelines.Optimise LLM-based applications for performance, accuracy and cost efficiency.Develop agentic AI workflows across multiple tools, platforms and foundation models.Partner with business and technical stakeholders to translate requirements into impactful AI solutions.Present technical concepts and findings to both technical and non-technical audiences. Experience 8+ years' experience within Data Science.3+ years' hands-on experience delivering LLM-based solutions.Experience leading or contributing to complex AI/ML projects.Strong expertise across modern LLMs and machine learning frameworks.Proven experience building AI agents and agentic workflows.Expertise in prompt engineering, evaluation frameworks, fine-tuning and feedback training pipelines.Strong programming skills in Python and/or other modern languages.Experience with cloud platforms such as AWS, Azure or GCP.Degree qualified (Master's, PhD or equivalent commercial experience). Desirable skills Spark, Hadoop, Data Lake or Data Warehouse technologies.Data architecture and database design expertise.Strong data engineering and data management exposure.Accounting or bookkeeping domain knowledge would be highly advantageous.Experience delivering multiple successful agentic AI projects end-to-end. What's on offer Fully remote working from anywhere in Europe.Modern equipment and home-working setup support.Collaborative and supportive engineering culture. For immediate consideration, please reply with your latest CV