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Open nowPosted 6 days ago

System Architect

Proximus Group

Where
de Bruxelles-Capitale/Arr. Brussel-Hoofdstad, Belgium
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Your applicationOpen nowSystem ArchitectProximus Group · de Bruxelles-Capitale/Arr. Brussel-Hoofdstad, Belgium

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The clock on this job

Early applications get read.

12.7% of postings close within 7 days. Measured by our own scanner across the market.

Share of postings closed within
  1. 2.2%1 day
  2. 4.5%3 days
  3. 12.7%7 days
  4. 20.4%14 days
  5. 35.6%30 days
  6. 58.7%60 days
This job: posted 6 days ago

The posting

A job at Proximus? You’ll find that everything revolves around the idea ‘Think Possible’. This means: we always assume that something is possible, even if it seems impossible. Well, especially so, actually. Call it a way of thinking that involves being open to a world of digital solutions that make our lives easier. And our way of working smarter.

✨ About the Role

We’re looking for a senior, autonomous System Architect with deep expertise in at least one specialized domain (Security, Cloud, AI, Software Engineering…) and the curiosity to grow into new domains on the job. In this strategic role, you will help shape and evolve NIT’s technological landscape and ensure that our squads deliver high‑quality, future‑proof software.

As a System Architect, you will:

  • Govern & manage the technical roadmap for front‑end and back‑end technologies used across NIT (.NET, Java, Angular, Camunda…).
  • Define architectural best practices & integration guidelines, ensuring secure, maintainable, and robust solutions.
  • Support squads hands‑on, including joining sprints to tackle refactoring, rework, or complex technical challenges.
  • ️ Drive consistency in tooling & engineering processes (CI/CD, GitHub workflows, Dynatrace, OpenShift/Azure, change & release management…).
  • Act as a bridge between squads and Centres of Excellence (DevOps, Cloud, Security, Observability).
  • Stay ahead of emerging technologies (agentic AI, cloud‑native evolutions, NIS2/PQC security standards…) and proactively bring innovation into NIT.

You’ll be a key enabler ensuring teams deliver high‑quality software efficiently, consistently, and with long‑term vision.

Your Mission

Govern & Manage the NIT Technology Roadmap

  • Steer the evolution of NIT’s technology stack (.NET, Java, Angular, CI/CD tooling, observability, cloud components…).
  • Ensure architectural alignment and cross‑squad coherence.
  • Provide domain leadership in Security, Cloud, AI, or Software Engineering.
  • Guide modernization and technology‑adoption initiatives.

Define Best Practices & Support Squads Hands‑On

  • Define coding standards, secure‑by‑design principles, and architectural guidelines.
  • Help squads align with NIT’s technical strategy.
  • Join sprints to support complex implementation or refactoring.
  • Promote scalable, maintainable, and high‑quality engineering practices.

Drive Tooling, DevOps & Process Excellence

  • Enhance and harmonize tooling across squads:⚙️ CI/CD pipelines GitHub workflows & versioning Dynatrace monitoring & logging ☁️ OpenShift & Azure cloud platforms Release, change, incident & problem management Test automation integration
  • Collaborate closely with DevOps, Cloud, Security & Observability CoEs.
  • Advocate for automation, consistency, and operational excellence.

Lead Innovation & Technology Watch

  • Track market and tech trends and evaluate new tools/frameworks.
  • Drive PoCs, experiments, and pilot programs.
  • Explore opportunities in agentic AI, cloud‑native evolution, and next‑gen security frameworks.
  • Foster curiosity, experimentation, and continuous learning.

What You Bring

  • Seniority and autonomy in Security, Cloud, AI, or Software Engineering.
  • Strong background in Java/.NET, microservices, APIs, and distributed systems.
  • Solid understanding of CI/CD, GitHub workflows, cloud platforms, monitoring & observability.
  • Ability to influence, guide, and collaborate with multiple squads.
  • Excellent communication, coaching, and mentoring abilities.
  • A proactive, innovative, forward‑looking mindset.

Hard Skills (Technical Expertise)

Front‑end

  • Angular, NodeJS, XHTML/CSS, JavaScript
  • Mockito/WireMock (test mocking)
  • Nice to have: STRUTS, JSF/JSP

⚙️ Back‑end

  • Java 8-21/.NET
  • Agentic AI: Claude CoWork (Antrophic), Codex (OpenAI)
  • SpringBoot, SpringCloud
  • RESTful services, JSON, SOAP‑WS
  • Microservices design
  • Design Patterns (GoF, enterprise patterns)

Modelling

  • UML
  • DDL/DML (data modelling & SQL structures)

️ Databases

  • Oracle (incl. ExaCC) + PostGreSQL
  • SQL & PL/SQL
  • JDBC, Hibernate/JPA

️ Delivery Tools

  • IntelliJ IDE
  • SOAP‑UI, Postman
  • GitHub, Maven, Jenkins
  • Swagger/OpenAPI
  • JUnit, SONAR

Frameworks & Platforms

  • Tomcat/Websphere/JBOSS
  • Docker & Kubernetes
  • Cloud platforms: OpenShift, Azure

Agile Ways of Working

  • Scrum, XP, Pair‑Programming

Industry Experience (Nice to Have)

  • Telecom industry experience
  • Knowledge of TMF (TM Forum) standards

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