AI/ML Engineer

In this role you sit at the intersection of clients, business and engineering, working across teams and disciplines. You’ll report to the Head of ML at Sagacify and collaborate with the wider Sagacify and Craftzing delivery and sales organisation., * Understand clients’ business needs and translate them into clear, feasible end-to-end AI solutions

• Act as a trusted point of contact for clients throughout the project, from scoping to delivery
• Run discovery sessions and technical workshops with business and technical stakeholders
• Design and build AI solutions combining LLMs, vector databases, APIs, orchestration layers and user interfaces
• Develop agents and RAG pipelines connecting client data to LLMs for grounded, reliable answers
• Perform prompt and context engineering to improve output quality and reduce hallucinations
• Build, train and evaluate classical ML models (classification, regression, forecasting, clustering) when they are the best fit for the problem
• Handle the data side: gathering, cleaning, validating data quality and feature engineering
• Evaluate solutions rigorously, using ML metrics, generative AI metrics and production monitoring (quality, drift, costs)
• Deploy solutions to the cloud with attention to security, reliability and cost efficiency, including versioning and reproducibility of models and data
• Present and explain AI concepts, trade-offs and results to non-technical audiences
• Support sales in qualifying opportunities, estimating effort and writing proposals
• Contribute to demos, proofs of concept and internal knowledge sharing

You stay in the code, you stay close to the client, and you keep learning as you go.

• You hold a Master’s degree in Computer Science, Engineering, Data Science, Mathematics, Statistics or a related field
• You have 2 to 5 years of experience in AI/ML engineering or related fields
• You’re proficient in Python and software development best practices
• You have strong machine learning fundamentals: supervised and unsupervised learning, feature engineering, model validation and the statistics behind them
• You have hands-on experience with the Python data and ML stack: Pandas, NumPy, Scikit-learn and PyTorch (or TensorFlow)
• You have a solid understanding of LLM fundamentals: Transformers, generation parameters, RAG and fine-tuning approaches
• You have hands-on experience with tools such as the OpenAI API, Hugging Face, LangChain/LangGraph, FastAPI and Docker
• You’re comfortable working with data in SQL databases
• You’re a natural consultant: you listen, ask the right questions and see the business behind the technical problem
• You’re comfortable presenting to clients and explaining complex topics simply
• You have strong problem-solving ability and a pragmatic, solution-oriented mindset
• You have a team spirit and enjoy collaborating across multiple roles
• You’re autonomous, curious, and quick to learn new tools
• You can communicate fluently in English and French or Dutch

Bonus points :

• Experience with a major cloud provider (AWS, Azure or GCP)
• Familiarity with MLOps practices: CI/CD, model and data versioning (MLflow, DVC), monitoring, Kubernetes
• Experience in one of our other focus domains: NLP, Computer Vision or time series
• Experience with gradient boosting libraries (XGBoost, LightGBM)
• Previous experience in a client-facing role
• Experience contributing to proposals, pre-sales or client workshops
• AI-native engineering workflows: hands-on experience with AI coding agents and AI-assisted development environments (Cursor, Claude Code, Windsurf, Copilot, etc.)

At Craftzing, we believe that an attractive salary package should be more than just a paycheck at the end of the month. That is why we offer

Sagacify is part of Craftzing, and together we build AI solutions that create lasting impact for our clients. You will be part of a team of enthusiasts who love to learn, continuously develop new skills and fast-track our customers’ AI journey across various industries.

At Craftzing and Sagacify, you get the trust and space to do your best work - in a human-sized environment with real team spirit, flexible working and room to take ownership.