Senior LLM Developer

Summary

Join Effixis, an Artefact company, and become a Senior LLM Developer, playing a key role in designing, building, and deploying advanced LLM applications. You will be a full-stack developer of AI-powered solutions, optimizing and fine-tuning LLMs for specific business applications. This position requires proven experience in full-stack development with a focus on AI/LLM applications and strong programming skills in Python. You will work closely with data scientists, ML engineers, and business stakeholders. Effixis offers a dynamic work environment, flexibility to work remotely or from Brussels offices, adjustable working hours, competitive compensation, and dedicated resources for training and development. The position is based in Brussels.

Requirements

• Proven experience in full-stack development with a focus on AI/LLM applications
• Strong programming skills in Python and familiarity with NLP frameworks (e.g., Hugging Face, OpenAI, LangChain, Cohere)
• Experience deploying and maintaining AI models in production environments (e.g., AWS, GCP, Azure, on-premise setups)
• Solid understanding of machine learning pipelines, MLOps, and containerization (Docker, Kubernetes)
• Familiarity with front-end technologies for AI-driven applications (e.g., Streamlit, React, FastAPI)
• Strong problem-solving skills and ability to work independently or within a team
• Excellent communication skills in English (other languages are a plus)

Responsibilities

• Develop and deploy LLM-powered applications, from prototyping to production-ready solutions
• Optimize and fine-tune LLMs for specific business applications
• Design and implement APIs and infrastructure for seamless model integration
• Ensure scalability, efficiency, and robustness of AI applications
• Stay updated on the latest advancements in generative AI and bring innovative ideas to the team
• Work closely with data scientists, ML engineers, and business stakeholders to deliver impactful AI solutions

Benefits

• The opportunity to work on cutting-edge LLM projects and contribute to innovative AI solutions
• A dynamic, supportive work environment that values creativity and professional growth
• Flexibility to work from our Brussels offices or remotely
• Adjustable working hours and competitive compensation
• Dedicated resources for training and development