Junior AI Engineer

Proximus; Brussel Hoofdstad; On-site; EUR 55,000 - 75,000; Full time

Job summary

Proximus Group is seeking a Junior AI Engineer to turn business questions into AI-driven insights and scalable applications. You will combine data analysis, ML and cloud engineering to support stakeholders and productionize solutions.

The role covers data analysis, ML development and software engineering with guidance as you grow ownership of analytics, development, testing and deployment across the solution lifecycle. Fluent English required.

Qualifications

• Strong foundation in Python and data-analysis or ML libraries.
• Experience with SQL and analysis of structured datasets.
• Understanding of statistics, data validation and visualization.
• Interest in Generative AI, LLMs, RAG and modern AI architectures.
• Ability to translate findings into business recommendations.

Responsibilities

• Analyze data with SQL and Python to answer business questions reliably.
• Build and evaluate ML models including regression, classification and clustering.
• Contribute to Generative AI and LLM-based applications, including prompting and retrieval.
• Develop, test and deploy AI solutions in cloud environments (Azure preferred).
• Create technical documentation and collaborate across teams.

Skills

Python

Pandas

Scikit-learn

Education

Master's degree in Artificial Intelligence, Computer Science, Engineering, Data Science or related field

Tools

Git

GitHub

Azure DevOps

GitHub Actions

MLflow

LangChain

Job description

Turn business questions and data into practical AI solutions. As a Junior AI Engineer, you will combine data analysis, machine learning and modern AI engineering to generate reliable business insights and build scalable applications. You will work with business and domain experts to understand their needs, explore and validate data, communicate clear recommendations, and help translate promising ideas into production-ready solutions.

The role has three complementary pillars: Data Analysis & Business Insights, Machine Learning & Generative AI, and Software & Cloud Engineering. You will receive guidance while progressively taking ownership of analytical, development, testing, deployment and documentation activities.

1. Data Analysis & Business Insights

• Use SQL and Python to explore, combine, clean, filter and validate data and answer business questions in a reliable, repeatable way.
• Perform exploratory data analysis to identify patterns, trends, correlations, anomalies and data-quality issues.
• Translate business questions into structured analytical approaches, hypotheses and measurable outcomes.
• Apply statistical methods and effective visualizations to validate findings and communicate them clearly.
• Independently investigate unfamiliar datasets, ask the right questions and select an appropriate analytical or machine-learning approach.
• Explain evidence, model drivers, reliability, assumptions, limitations and potential bias to technical and non-technical stakeholders.
• Produce concise analytical notes that document conclusions, limitations and actionable recommendations.
• Work closely with domain experts to gather context, respectfully challenge assumptions, validate conclusions and document decisions.
• Build, test and explain practical machine-learning solutions, including regression, classification, clustering and similarity analysis.
• Use anomaly-detection and forecasting techniques to identify unusual patterns and estimate future outcomes.
• Contribute to Generative AI and LLM-based applications, including prompting, Retrieval-Augmented Generation solutions and basic agentic workflows.
• Assess the quality and suitability of AI outputs using appropriate evaluation methods and business criteria.
• Prototype and validate AI solutions with business stakeholders before further industrialization.

3. Software & Cloud Engineering

• Develop maintainable Python components and contribute to reliable AI applications.
• Contribute to deploying, monitoring and maintaining AI solutions in cloud environments, preferably Microsoft Azure.
• Apply software-engineering, DevOps and MLOps practices, including Git, testing, CI/CD and reproducible experimentation.
• Collaborate with AI engineers, data scientists, data engineers and business experts throughout the solution lifecycle.
• Create clear technical documentation and contribute to team knowledge sharing and continuous improvement.

Your profile:

• Master's degree in Artificial Intelligence, Computer Science, Engineering, Data Science or a related technical field, or equivalent practical experience.
• Up to 2 years of relevant professional experience. Internships, academic projects and personal AI or data projects are valued.
• Good foundation in Python and common data-analysis or machine-learning libraries such as pandas and scikit-learn.
• Working knowledge of SQL and experience analysing structured datasets.
• Understanding of statistics, data validation, machine learning and effective data visualization.
• Strong interest in Generative AI, LLMs, RAG and modern AI architectures.
• Ability to connect analytical findings to business questions and communicate recommendations to technical and non-technical audiences.
• Fluent in English. French and/or Dutch is a strong asset.

Technologies you may work with

• Python, SQL, pandas, scikit-learn and data-visualization libraries.
• LLM frameworks such as LangChain or LlamaIndex, and agentic frameworks such as LangGraph, AutoGen or CrewAI.
• Microsoft Azure, Azure AI Search, vector databases, graph databases and knowledge graphs.
• Databricks, including catalogue structures and AI/ML capabilities.
• Git, GitHub, Azure DevOps or GitHub Actions, CI/CD pipelines and MLflow.

What will help you succeed

• Business curiosity: you seek to understand the underlying business question before selecting a technical approach.
• Critical thinking: you check assumptions, explore alternative explanations and validate conclusions against evidence.
• Problem solving: you can structure ambiguous problems and learn unfamiliar technologies or datasets quickly.
• Collaboration: you work constructively with engineering, data and business colleagues.
• Communication: you document your work clearly and adapt explanations to the audience.
• Quality and ownership: you test your work, pay attention to detail, ask for support when needed and follow through on commitments.

You do not need to master every technology listed above. We are looking for strong analytical and technical fundamentals, hands-on curiosity and the ability to learn and grow in a supportive team environment.