Medior/Senior Data Engineer - Consultant

Publication date : Oct 21, 2026, 2:23PM

Make your mark! Orange Business seeks a Data Warehouse Engineer in Brussels.

Medior/Senior Data Engineer - Consultant

Permanent FR or NL + EN

Our Digital & Data team at Orange Business is a dynamic community of expert consultants revolutionizing Customer Experience, Cloud, Data, and AI across various sectors, including retail, finance, manufacturing, life sciences, and public services.

With 30 years of expertise, we remain at the forefront of innovation, revolutionizing business transformation across industry with the full potential of vanguard Data technologies at scale in a sustainable way.

We have a significant international presence, with 20% of our activity extending beyond Belgium, and this number continues to grow. By joining us, you will be part of a global impact on businesses around the world.

Check out some of our ongoing projects:

• At Carrefour, Orange Business ensures the seamless operation and evolution of the Data Platform, managing both analytical and operational data flows with a focus on reliability and performance. We handle diverse workloads, including batch and stream processing. By processing everyday terabytes of data that feed dashboards and web APIs, we empower Carrefour to leverage data-driven insights and support their business growth.

• Big Pharma International Company: Orange Business migrated a Drug Discovery Data Platform hosted on-premises from a Hadoop stack to Azure. During the migration, we improved various data flows to reduce processing time, implemented proactive data quality checks, and optimized the CI/CD pipelines. Our efforts resulted in a more efficient and reliable platform, allowing scientists to quickly and safely assess the potential of tested molecules for new drugs development.

• For Paradigm, Orange Business created a data platform and a unified set of tools for all public sector to conduct data projects, with a focus on Kubernetes and DevOps processes to enable self-service and standardization. We were able to handle many projects from all administrations, ranging from API management to data processing & analytics, as well as data science modelling.

This is a great opportunity for someone who enjoys owning deliverables, working close to the business, and growing their craft in a supportive, high-standards engineering culture.

Interested in taking part in this exciting journey? Please take a look at the following requirements and let’s meet up if that matches your profile!

What You’ll Do:

All the responsibilities we’ll trust you with

As Data Engineer, your role will involvedevelopment, data modelling, unit testing and, continuous deployment using the latest technologies related to Cloud solutions.

• Lead the Way: Use an analytical, data-driven approach to support business cases.

• Engage with Stakeholders and Get Creative: Work with clients and partners to design data pipelines and deliver insightful analytics while ensuring data integrity.

• Use your technical knowledge: implement effective solutions by leveraging top-notch technologies and automating key components of client’s infrastructure.

• Mentor and Collaborate: Possibility to give training in our Cloud and Data Academy or present advanced tech topics during Lunch & Learn session.

Who you are:

What matters most for this role

Your interests & soft skills:

• Interest in digital transformation and data-driven solutions

• Proactive mindset and outside the boxthinking to tackle challenges.

• You are able to explain technical concepts to a non-technical audience.

• You excel in interpersonal communication and know how to have a professional and commercial approach with customers.

• You value collaboration as a way to succeed

• Strong communication and presentation skills in French and/or Dutch + English

Your technical expertise:

• A master’s or bachelor’s degree in IT, a related technical field

• At least 3 years’ experience as a Data Engineer

• Knowledge of Data Warehousing principles and Data Modelling (Data Vault, Star-schemas, Slow Changing Dimensions, …)

• A strong interest in data manipulation (storage, crunching, pipeline implementation)

• A strong SQL knowledge

• Experience with one of the cloud provider: Azure, Google Cloud or AWS

It is not a requirement, but other preferred qualifications would be:

• Knowledge of at least one programming language: Java, C#, Python, Scala…

• Knowledge of continuous developments / deployment concepts & technologies (GIT, Azure DevOps, Gitlab, CircleCI, ...)

• Basic knowledge of scripting languages (Bash, PowerShell)

• Knowledge of Unix environments

Interests and soft skills we value

What success looks like

We seek individuals who embody our values - Agile, Expert, Together, and Authentic.

You thrive on ambitious goals, collaborate openly, and make a meaningful impact with integrity.

We value professionals who combine deep expertise with a passion for learning, innovation, and exceeding expectations.

If you show initiative, accountability, and support your colleagues, you’ll flourish with us.

Excellence comes from people who lead by example and pursue personal and professional growth.

Why you should join us:

Some of the rewards of working at Orange Business

• A community of experts - as Digital Natives, we put innovation at the heart of our expertise. Continuously seeking new ideas, we proudly host regular “Guild” workshops and knowledge-sharing sessions through our Data Meetups.

• A place to strengthen both technical depth and professional skills (communication, ownership, stakeholder collaboration).

• Exposure to real-world client contexts and business challenges where your work has visible impact.

• Real opportunity to grow your autonomy and career growth possibilities.

• We may work with tomorrow’s technology, but at our core we are a people-oriented organization. We value quality, feedback, continuous improvement, as much as collaboration, openness, inclusivity and well-being at work.

• Hybrid way of working and modern & collaborative office in Brussels

• Compelling advantages including a yearly bonus scheme, a flexible mobility with possibility for a housing budget, representation and expense allowances…

Ready to build with us? We screen applications on an ongoing basis, with the aim of conducting conversations and interviews as we receive them.

Interested but feel that you don´t match the criteria 100%? We encourage you to apply anyway! Your perfect match might be the next job we are announcing, so why not have a head start and apply now!

Apply with your CV and (if available) links to GitHub, portfolio, or examples of work that reflect your experience.

More about Orange Business: Orange Business is the Orange Group entity dedicated to businesses and organizations. Our unique history as a telco operator and now an IT services company enables us to support the sustainable digital transformation of enterprise businesses worldwide.

We bring the rigor of a network and connectivity expert together with the agility of a global digital solutions integrator. We combine global presence with a local approach to get the most out of digital technology, from networks and cloud to data and service platforms.

Digital & Data is the dedicated Orange Business entity for professional services in digital and data, operating as part of the Orange Business European organization. We help enterprises design, build and deliver digital and data solutions, from consulting and advisory through to large-scale implementation and managed services, combining deep technical expertise with the operational agility of a ringfenced organization. By pooling expertise across countries, we offer clients a consistent European delivery model, the ability to reuse proven capabilities at scale, and seamless integration with Orange Business' wider proposition in network, AI, trusted cloud and cybersecurity. This dedicated focus on professional services, backed by the strength and reach of Orange Business and the Orange Group, means our clients benefit from specialized digital and data expertise delivered with clear accountability, European coverage, and the assurance of a trusted long-term partner.

Check out our Career site for even more or connect with us on LinkedIn.

At Orange, only your skills matter.

Regardless of your age, gender, background, origin, religion, sexual orientation, disability, neurodiversity, or appearance, we actively encourage diversity within our teams, as it is a collective strength and a driver of innovation.Orange is a disability-inclusive employer: please feel free to let us know about any specific needs you may have.