TEMPLATE - Offre d'emploi BE - INTERN (à dupliquer) EN

Welcome to the NSI adventure 🚀

A major player in the IT sector, we have continued to grow and evolve since our creation in 1993. With a dedicated team of nearly 1,400 employees spread across several sites in Wallonia and Brussels, NSI has followed an exceptional trajectory. Our company is at the forefront of the digital revolution, offering a complete range of IT services, from analysis and software development to architecture and IT governance.

Are you ready to build the IT of tomorrow with us?
Joining NSI means designing, innovating, and most importantly, being part of a real team effort — working on projects that truly matter.
Here, technical expertise meets curiosity and a friendly atmosphere to create concrete, meaningful solutions.
Every project has a real impact — on our clients, on society, and sometimes, on the safety of thousands of citizens.

Your role at NSI

Your next challenge starts here!
As a trilingual Technical Architect (.NET / C# / Angular / Docker / ElasticSearch), you’ll join the Security & Data Intelligence Business Unit, based in Brussels.
A demanding and confidential environment — yet profoundly human — where your work will have a direct impact on protecting citizens.
Every day, you’ll put your expertise to work on a strategic platform:
a cluster powered by Docker and Kubernetes, and backed by an ElasticSearch database.
A living ecosystem that you’ll make evolve with method, precision, and vision.
You won’t just be an architect. You’ll be the balance point between technology, strategy, and purpose.

Your job will involve :

Code — but also decide. You take an active part in development while keeping an overall vision of the system architecture.
You mentor mid-level developers, ensure the coherence of deliverables, and set priorities with fairness and precision.
You analyze incoming tickets, identify what’s a bug versus an architectural improvement, and propose tailor-made solutions.
You design and imagine long-term technical evolutions that make the platform ever more robust and high-performing.
Through this project, you’re not just building code — you’re helping to protect society.

What you bring to this new mission :

1. At least 6 years of experience in software development or architecture (.NET / C# / Angular / Elastic / Docker / Kubernetes).

2. Trilingual (FR/NL/EN) and comfortable in multicultural environments.

3. Autonomous, structured, and rigorous, with a strong ability to think in terms of architecture and overall impact.

4. Understanding of security challenges, cluster management, and scalability issues.

5. Proactive mindset, able to defend your choices, comfortable with technical complexity and team coordination.

6. Holder of a certificate of good conduct and Belgian residency (required for project access).

Bonus
💡 You are able to make proposals and work independently
🎯 Taking on challenges is part of your mindset
🫴 You're a multitasking person and ready to invest in a rewarding role
👫 Working as part of a team and collaborating with your colleagues is essential to you
💪 You're looking for a job that will give meaning to your daily life and enable you to progress
🫵 You want to make a difference and add your "special touch"

What NSI can offer you:
🤝 A policy of trust that encourages autonomy and the taking of initiative
⚖️ A work-life balance thanks to teleworking and flexible working hours
💰 A salary package with numerous extra-legal benefits from the moment you arrive, including a company car, luncheon vouchers, insurance, etc.
👍 Personalised support during your assignment
📈 The opportunity to join a fast-growing company
🧑‍🏫 The opportunity to continually develop your skills thanks to a training catalogue and access to LinkedIn Learning
🤩 Varied and challenging assignments with our customers
👊 Being part of a supportive and dynamic company
👩🏼‍🤝‍👨🏽 Activities to get together and share some fun times together: afterworks, teambuildings, conferences are all on the agenda

Do you fit this profile ?
Do your personality and experience match NSI's DNA ?
If you're ready to join us, apply now !