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