Senior Network Engineer - Cisco ACI & F5
Job Description
Senior Network Engineer – Cisco ACI & F5
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Location: Framingham, MA
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Employment: Full-time W2
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Salary: $70,000–$110,000 base
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Experience: 8+ years
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We are seeking a Senior Network Engineer to deliver complex network migrations, infrastructure upgrades and hardware-refresh initiatives within a large enterprise environment.
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This is a hands-on engineering position requiring strong Cisco routing and switching expertise alongside practical experience supporting and migrating F5 BIG-IP load balancers.
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Key responsibilities:
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- Plan and execute switch, router and F5 migrations, consolidations and hardware refreshes.
- Perform impact assessments and develop safe implementation and rollback plans.
- Configure and maintain network infrastructure across data-centre, LAN and WAN environments.
- Troubleshoot complex network and application-connectivity issues.
- Perform packet-capture analysis, code upgrades and faulty-hardware replacements.
- Produce technical documentation and network-infrastructure diagrams.
- Support incident, change and problem-management processes.
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Required experience:
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- Strong hands-on Cisco routing and switching experience.
- Advanced knowledge of VLAN, VTP, STP, HSRP, OSPF and BGP.
- Experience with Cisco Nexus 2K, 5K and 7K platforms.
- Practical knowledge of VDC, VPC and FabricPath.
- Experience deploying or operating Cisco ACI.
- Hands-on experience with F5 BIG-IP load balancers.
- Strong troubleshooting skills, including tcpdump and packet-capture analysis.
- Previous ownership of enterprise network migrations or hardware-refresh projects.
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Experience with Cisco AnyConnect, ASA/Firepower, IPsec VPNs, FortiGate firewalls or Infoblox would be advantageous.
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If you are an experienced network engineer with strong Cisco and F5 expertise, please apply and I look forward to discussing this opportunity with you.