Join Effixis, an Artefact Company: Shape the Future of Generative AI and Large Language Models (LLMs)

Are you passionate about generative AI and excited by the potential of Large Language Models? Effixis, an Artefact company, is seeking a Senior LLM Developer to join our innovative team. As a Senior LLM Developer, you will play a key role in designing, building, and deploying advanced LLM applications, acting as the full-stack developer of AI-powered solutions. If you have experience in developing and scaling LLM-based applications and enjoy working in a dynamic, forward-thinking environment, this is the opportunity for you.

Who You Are

• An experienced software engineer with a strong background in full-stack development, particularly in the context of LLM applications.

• Passionate about building, fine-tuning, and deploying LLMs for real-world use cases.

• Able to design and implement scalable architectures for AI-driven applications.

• Comfortable working in a fast-paced, agile environment with a collaborative mindset.

• Proactive in learning new technologies and driving innovation within a team.

Who We Are 

Effixis is part of Artefact Group, a leading AI consulting firm operating at the forefront of AI and LLM-driven innovation. We help clients across industries, including public health, manufacturing, and media, harness the power of generative AI. At Artefact, we value innovation, collaboration, and continuous learning, and we are committed to fostering an inclusive and supportive workplace.

What You Will Do

• 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.

What You Bring

• 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).

What We Offer

• 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.

This position is based in Brussels.

Don’t worry if you don’t meet all the criteria! We value motivation and potential above all else. We’d love to hear from you and learn more about your passion for generative AI.