We are looking for a Senior Network / SDN Engineer to support an industrial IT/OT transformation in an on‑premises environment in Herstal, Belgium. This is a delivery-focused role: you will design, implement and troubleshoot secure network connectivity for platforms, industrial applications, wireless services and shopfloor environments.
You will work closely with internal technical teams and external vendors and produce concrete outputs: designs, documentation, validation reports and remediation plans.
Main responsibilities
- Design and support secure IT/OT network connectivity.
- Define and document network flows between platforms, applications and infrastructure.
- Configure and troubleshoot:
- VLANs, routing, trunking
- Firewall rules and flows
- DNS, DHCP, NTP, proxy
- Certificates and TLS
- Support network segmentation and security zoning for industrial environments.
- Contribute to SDN design, implementation and troubleshooting.
- Support Wi‑Fi 7 readiness for industrial use cases, mobile devices and shopfloor connectivity.
- Work with platform, infrastructure, cybersecurity, application and operations teams.
- Troubleshoot end‑to‑end connectivity issues (network, wireless, platform, application).
- Produce clear technical documentation: flow matrices, diagrams, runbooks and handover material.
- Contribute to production readiness: monitoring, operational procedures, knowledge transfer.
Required skills & experience
- Min 5 years of experience as Network Engineer
- French is compulsory and English nice to have
- Strong experience in enterprise or industrial networking.
- Good understanding of IT/OT environments and their security/operational constraints.
- Hands-on experience with:
- Routing, switching, VLANs, trunking
- Firewall rules, flows and segmentation
- Good knowledge of DNS, DHCP, NTP, proxy, certificates and TLS.
- Strong skills in troubleshooting complex network issues.
- Basic to good understanding of Kubernetes / OpenShift networking (NetworkPolicies, ingress/egress, platform connectivity).
- Experience or strong exposure to SDN
- Ability to work with architecture, cybersecurity and operations teams in a structured way.
- Ability to produce clear documentation, diagrams and handover material.
What we offer
- An international community bringing together 110+ different nationalities
- An environment where trust has a central place: 70% of our key leaders started their careers at the first level of responsibilities
- A robust training system with our internal Academy and 250+ available modules
- A vibrant workplace that frequently gathers for internal events (afterworks, team buildings, etc.)
- At Mantu, sustainability is part of everything we do. You’ll have the opportunity to turn your ideas into action and make a tangible impact. Every day, our teams bring our ESG commitments to life, from reducing our footprint to driving positive change within our communities. Through our WeCare Together program, you’ll be empowered to design and lead projects that create real social or environmental impact, with the company’s full support.
Amaris Consulting is proud to be an equal-opportunity workplace. We are committed to promoting diversity within the workforce and creating an inclusive working environment. For this purpose, we welcome applications from all qualified candidates regardless of gender, sexual orientation, race, ethnicity, beliefs, age, marital status, disability, or other characteristics.
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is an independent technology consulting firm providing guidance and solutions to businesses. With more than 1000 clients across the globe, we have been rolling out solutions in major projects for over a decade – this is made possible by an international team of 7,600 people spread across 5 continents and more than 60 countries. Our solutions focus on four different Business Lines: Information System & Digital, Telecom, Life Sciences and Engineering. We’re focused on building and nurturing a top talent community where all our team members can achieve their full potential. Amaris is your steppingstone to cross rivers of change, meet challenges and achieve all your projects with success.
At Amaris, we strive to provide our candidates with the best possible recruitment experience. We like to get to know our candidates, challenge them, and be able to give them proper feedback as quickly as possible. Here's what our recruitment process looks like:
Brief Call: Our process typically begins with a brief virtual/phone conversation to get to know you! The objective? Learn about you, understand your motivations, and make sure we have the right job for you!
Interviews (the average number of interviews is 3 - the number may vary depending on the level of seniority required for the position). During the interviews, you will meet people from our team: your line manager of course, but also other people related to your future role. We will talk in depth about you, your experience, and skills, but also about the position and what will be expected of you. Of course, you will also get to know Amaris: our culture, our roots, our teams, and your career opportunities!
Case study: Depending on the position, we may ask you to take a test. This could be a role play, a technical assessment, a problem-solving scenario, etc.
As you know, every person is different and so is every role in a company. That is why we have to adapt accordingly, and the process may differ slightly at times. However, please know that we always put ourselves in the candidate's shoes to ensure they have the best possible experience.
We look forward to meeting you!
