Lead Consultant
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Technology – Network Engineer / Network Consultant
Location – Brussels, Belgium
Job Description
- Network Engineer / Network Consultant (Cisco IOS/NX-OS, ACI, F5 LTM, Infoblox, Network TAP)
Position Summary
- We are seeking an experienced Network Engineer/Consultant responsible for designing, implementing, operating, and troubleshooting enterprise and data center network infrastructure. The role requires hands-on expertise in Cisco IOS/NX-OS, Cisco ACI, F5 LTM, Infoblox DDI, and Network TAP solutions to support business-critical environments.
Key Responsibilities
Cisco Routing & Switching (IOS/NX-OS)
- Configure, deploy, and support Cisco Catalyst and Nexus switches.
- Manage Layer 2 and Layer 3 network infrastructure, including:
- VLANs
- STP/RSTP/MST
- EtherChannel/VPC
- OSPF
- BGP
- HSRP/VRRP
- Perform configuration changes, upgrades, and network optimization.
- Troubleshoot network incidents and perform root cause analysis.
Cisco ACI
- Deploy and administer Cisco Application Centric Infrastructure (ACI).
- Configure and manage:
- Fabric Policies
- Tenants
- VRFs
- Bridge Domains
- EPGs
- Contracts
- L3Out
- Implement multi-tenant network architectures.
- Troubleshoot ACI fabric, APIC controllers, and endpoint connectivity issues.
- Configure and manage F5 Local Traffic Manager (LTM) environments.
- Create and maintain:
- Virtual Servers
- Pools
- Health Monitors
- iRules
- SSL Profiles
- Perform application load balancing and traffic optimization.
- Support SSL offloading and application availability requirements.
- Administer DNS, DHCP, and IP Address Management (IPAM) services.
- Manage DNS zones, DHCP scopes, and IP allocation policies.
- Maintain IP inventory and address planning.
- Troubleshoot DNS and DHCP-related issues.
- Implement DNS security and best practices.
- Deploy and manage Network TAP devices and packet broker solutions.
- Support network visibility and traffic monitoring platforms.
- Coordinate TAP installation, maintenance, and firmware upgrades.
- Analyze packet captures using tools such as Wireshark.
- Ensure optimal traffic distribution to monitoring and security tools.
- Handle incident, change, and problem management activities.
- Prepare and maintain network documentation, diagrams, SOPs, and implementation plans.
- Participate in maintenance activities and after-hours support when required.
- Collaborate with application, security, and infrastructure teams.
- Cisco IOS and NX-OS Administration
- Cisco Nexus 3K/5K/7K/9K Platforms
- Cisco ACI Architecture and Operations
- F5 LTM Configuration and Troubleshooting
- Infoblox DDI (DNS, DHCP, IPAM)
- Network TAP and Packet Broker Technologies
- OSPF, BGP, HSRP, VRRP, VLAN, VXLAN
- TCP/IP, DNS, DHCP, NAT, Load Balancing
- Wireshark and Packet Analysis
- Network Monitoring Tools
- Industry certifications preferred:
- CCNP Enterprise / CCNP Data Center
- CCIE (Preferred)
- Cisco ACI Specialist
- F5 Certified Administrator (CA)
- Infoblox Certified Professional
- Strong troubleshooting and analytical skills.
- Excellent documentation and communication abilities.
- Experience working in large enterprise or managed services environments.
- Ability to manage multiple priorities and deliver under tight deadlines.
Infosys is a global leader in next-generation digital services and consulting. We enable clients in more than 50 countries to navigate their digital transformation. With over four decades of experience in managing the systems and workings of global enterprises, we expertly steer our clients through their digital journey. We do it by enabling the enterprise with an AI-powered core that helps prioritize the execution of change. We also empower the business with agile digital at scale to deliver unprecedented levels of performance and customer delight. Our always-on learning agenda drives their continuous improvement through building and transferring digital skills, expertise, and ideas from our innovation ecosystem.
All aspects of the hiring process and employment at Infosys are based on merit, competence and performance. We are committed to embracing diversity and creating an inclusive environment for all employees. Infosys is proud to be an equal opportunity employer
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