Job Specifications
Senior Network Engineer (Freelance) - 12 Months - Brussels Belgium
At RELYzIT Talent, we don't recruit -- we build. We unite the top 2% of builders -- engineers, architects, creators -- into a movement across Europe and the GCC. Vetted through our VECTOR7(tm) Signal Stack, you're not just hired, you're chosen. This is more than work. This is where builders build the future.
About the Role
Our client is seeking a Senior Network Engineer to join their high-impact team in Brussels on a freelance basis for a 12-month project. This is a mission-critical opportunity for a true builder: you'll architect, optimize, and secure complex network environments, directly shaping the digital backbone of a leading organization. Your expertise will empower both the team and the business to scale, innovate, and stay ahead of the curve.
Why This Role Matters
As a Senior Network Engineer, you will be the cornerstone of robust, secure, and scalable IT infrastructure. Your leadership and technical mastery will drive the success of major network projects, ensure seamless operations, and mentor the next generation of network talent. The stakes are high: your work will directly impact business continuity, security, and the ability to innovate at speed.
Key Responsibilities
Integrate into a high-performing team to deliver expert network solutions and guidance, leveraging deep CISCO expertise
Lead and execute network projects from design to implementation, ensuring optimal performance and security
Advise on strategic network decisions, collaborating closely with the team manager
Mentor and support junior engineers, fostering a culture of continuous learning and technical excellence
Administer and configure CISCO ACI environments, including creation of EPGs, Bridge Domains, and port configurations
Oversee Cisco Catalyst Center operations: monitoring, inventory management, and automation
Manage and administer ISE access policies
Design and maintain MPLS networks, with a focus on BGP and VRF routing
Expertly configure and administer Catalyst switches (VLAN, STP, HSRP, OSPF, BGP)
Deploy and manage WiFi solutions, including Access Points and WLC 9800 Controllers
Diagnose and resolve complex network issues using advanced monitoring and troubleshooting tools such as Wireshark
Technical Skills & Experience
CISCO ACI: Proven hands-on experience with basic management (EPGs, Bridge Domains, port configuration)
Cisco Catalyst Center: Monitoring, inventory, and automation
ISE: Basic administration of access policies
MPLS: Expert-level BGP and VRF routing
Routing & Switching: Expert in Catalyst administration and configuration (VLAN, STP, HSRP, OSPF, BGP)
Monitoring & Troubleshooting: Advanced diagnostics with tools such as Wireshark
WiFi: Deployment and administration of Access Points (WLC 9800 Controller)
Certification: Cisco CCIE (mandatory - please attach certification)
Language Proficiency
English: Active professional knowledge required
French: Active professional knowledge required
Other Requirements
Proven experience as an Expert IT Infrastructure Engineer
Demonstrated ability to take ownership, solve complex problems, and drive impact
Experience mentoring junior engineers and collaborating on strategic decisions
Hybrid work model: Brussels-based with remote flexibility
Ready to build the future? Upload your CV and join the movement of elite builders at RELYzIT Talent. Your next mission starts here.
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About the Company
At RELYzIT, we are on a mission to revolutionize businesses in the digital age by empowering them with cutting-edge technology solutions. Our extensive range of services, including blockchain-based solutions, Cloud, Security, Infrastructure, Data Science and Engineering, and Web Development, enables us to create a lasting impact.
With our innovative blockchain-based solutions, we unlock a world of possibilities for businesses, enhancing efficiency, transparency, and security. Our expert team crafts secure, decentralized sys...
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