Automation Expert PLC/SCADA Systems

Automation Expert PLC/SCADA Systems (Freelance) - 24 Months - Antwerp Belgium

At RELYzIT, we don't recruit — we build.

We unite exceptional builders: engineers, architects, creators, across the BENELUX and the GCC.

Vetted through VECTOR7™'s multi-signal evaluation, you evaluate once and carry that credential forever.

This is more than work. This is where builders build the future.

About the Role

RELYzIT Talent is seeking an elite Automation Expert specializing in Operational Technology (OT) for a freelance assignment with our client in Antwerp, Belgium. This is a 24-month, on-site project at the heart of maritime infrastructure, where your expertise will directly impact the safety, efficiency, and modernization of critical bridge and lock systems. If you thrive in high-stakes, high-tech environments and want to shape the future of industrial automation, this is your stage.

Why This Role Matters

Our client’s maritime infrastructure is the backbone of port operations, supporting thousands of daily activities and ensuring seamless logistics. As an Automation Expert, you will safeguard and advance the reliability, security, and performance of these vital systems. Your work will help protect critical infrastructure, drive innovation, and ensure compliance with evolving cybersecurity standards. The stakes are high: service continuity, public safety, and the future of sustainable port operations depend on your expertise.

What You’ll Be Doing

• Managing and maintaining OT systems for bridge and lock controls in a complex, business-critical environment.


• Implementing and advancing cybersecurity measures in line with NIS and NIS2 directives across all automation systems.


• Updating, patching, and securing PLCs, IO systems, sensors, PCs, SCADA software, engineering tools, OPC (Kepware), speed controllers, UPS, and variable traffic signs.


• Programming and modifying PLC and SCADA systems to ensure optimal performance and resilience.


• Collaborating with multidisciplinary teams to deliver robust, future-proof automation solutions.


• Ensuring full compliance with regulatory frameworks and service continuity requirements.


• Providing hands-on support for installation, troubleshooting, and continuous improvement of automation installations.


• Operating fully on-site within a highly regulated, mission-critical environment.

What We’re Looking For

• Proven ownership mindset: you take initiative, solve problems, and deliver impact without waiting for direction.


• Deep expertise in industrial automation, especially within critical infrastructure environments.


• Ability to thrive in high-pressure, regulated contexts where service continuity and security are paramount.


• Collaborative spirit: you work seamlessly with engineers, operators, and stakeholders to achieve shared outcomes.


• Strong analytical and troubleshooting skills, with a relentless drive for operational excellence.


• Commitment to continuous learning and staying ahead of technological and regulatory developments.

Technical Skills & Experience

• Expert-level experience with Siemens Step 7 Classic: HW config setup, communication with other systems, netpro.


• Senior-level experience with Siemens Step 7 Classic: redundant PLC systems 400H (FH).


• Medior to senior experience with Siemens TIA Portal: setting up hardware systems, network topology, and system connections.


• Medior to senior experience with Siemens WinCC V7/8 (minimum version 7.4): HW config setup for redundant systems, PLC system connections, Station configurator.


• Expertise in Siemens Industrial Networking: configuring Siemens switches, VLANs, industrial firewalls, VPNs, bridging, and routing.


• Hands-on experience with OPC (Kepware), speed controllers, UPS, and variable traffic signs.


• Proven track record in maintaining and securing critical industrial automation systems in high-tech, regulated environments.

Language Proficiency

• Fluent Dutch (spoken and written) is mandatory.


• Technical English proficiency is required.

Other Requirements

• Master’s degree in electromechanics, automation, or equivalent through proven experience (required).


• Completed template document (required).


• Full on-site presence in Antwerp, Belgium, is mandatory for the duration of the assignment.


• Ability to work within a highly regulated, mission-critical environment.


• Experience in maritime or critical infrastructure environments is a strong plus.