Proximus Group

Junior AI Engineer

Proximus Group  •  Brussels, BE (Onsite)  •  4 hours ago
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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.

2. Machine Learning & Generative AI

  • 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.

Proximus Group

About Proximus Group

Proximus Group is a provider of future-proof connectivity, IT and digital services, headquartered in Brussels. The Group is actively engaged in building a connected world that people trust, so society blooms.

The Domestic segment is focused on providing state-of-the art telecommunications and IT services in the Benelux. In Belgium, core products and services are offered under the Proximus, Mobile Vikings and Scarlet brands for the residential market and Proximus NXT for the Enterprise market. The Group is also active in the Netherlands and in Luxembourg (Tango and Proximus NXT).

Proximus Global overarches the international activities of the Group, gathering the strengths of BICS, Telesign and Route Mobile. Encompassing the entire value chain from P2P Voice & Messaging and Mobility services to CPaaS and Digital Identity, Proximus Global is in a unique position to become a global digital communications leader.

The Group has the ambition to build the #1 gigabit network for Belgium and plays a central role in creating inspiring digital ecosystems, while fostering an engaging culture and empowering ways of working. Building upon these strengths, Proximus aims to contribute to an inclusive and sustainable digital society, delight customers with an unrivalled experience and achieve profitable growth both locally and internationally to deliver long-term value for stakeholders.

With 13,131 employees, imbued with Proximus' Think Possible mindset and all engaged to offer a superior customer experience, the Group realized an underlying Group revenue of EUR 6,430 million end-2024.

Industry
Telecommunications
Company Size
10,000+ employees
Headquarters
Brussels, BE
Year Founded
Unknown
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