{"schemaVersion":"jobsearcher.job.v1","id":"57c5b1c4ebdd05764a2fdd44","url":"https://jobsearcher.com/jobs/57c5b1c4ebdd05764a2fdd44","canonicalUrl":"https://jobsearcher.com/jobs/57c5b1c4ebdd05764a2fdd44","title":"Senior Network Engineer","description":"Title: Sr. Network Engineer\nLocation: Cambridge, MA (Onsite)\nHire Type: Contract\nYear of experience – 15 years\nLocation - 675 W Kendall St, Cambridge, MA 02142\nJob Description:\nExperience in Meraki, Infoblox, Cisco Enterprise Routers, Switches, ASA’s, FTD’s is a must\nNetwork SME\nA Senior Network Engineer to lead the stability, performance, and evolution of enterprise network. Own day to day operations, design and deliver minor projects and enhancements, and act as a key decision maker ongoing issues, standards, and incident response priorities. This role blends hands-on engineering with leadership teams to meet uptime, performance and scalability goals.\nEnsure availability and performance across LAN/WAN, WLAN, SD WAN, data center, and cloud interconnects; proactively remediate alerts and capacity issues.\nLead major incident, drive root cause analysis (RCA), implement corrective/preventive actions, and maintain post incident documentation.\nAuthor change plans, execute network changes during maintenance windows, and adhere to ITIL processes and risk controls.\nEstablish post-migration validation protocols and rollback prevention to ensure successful transitions and minimize operational risk.\nMaintain standardized configurations and golden templates; enforce baseline compliance and secure device hardening.\nAdminister network ACLs, firewalls, VPNs, segmentation, and NAC (e.g., 802.1X), coordinating closely with Security/IR teams.\nDevelop and tune dashboards, SNMP/NetFlow/sFlow, device telemetry, and syslog for actionable insights; maintain runbooks.\nManage TAC/service escalations, RMA, firmware/OS lifecycle, and bug impact assessments.\nScope, design, and deliver small to medium network projects (e.g., site cutovers, Wi Fi refreshes, routing redesigns, micro segmentation, SD WAN policy tuning).\nPublish L2/L3/WLAN standards, address/route plans, QoS models, and security patterns; maintain HLD/LLD documentation.\nDesign VPC/VNet topologies, hybrid connectivity (VPN/Direct Connect/ExpressRoute), routing and security policies across cloud/on prem.\nImplement network automation (e.g., Meraki APIs) to reduce toil and enforce compliance at scale.\nBenchmark, capacity plan, and optimize QoS, multicast, load balancing, and application delivery paths.\nBuild lab tests, pilots, and staged rollouts; define success criteria and rollback plans.\nEvaluate and select platforms, tooling, and designs based on business needs, risk, and total cost of ownership.\nMake real time tradeoffs during incidents and maintenance windows; decide sequencing, rollback thresholds\nEnforce standards, review changes, approve exceptions, and mentor engineers on best practices.\nPartner with Security, Cloud, Systems, and PMO to align roadmaps and deliver outcomes on time and within budget.\nExperience in Meraki, Infoblox, Cisco Enterprise Routers, Switches, ASA’s, FTD’s is a must\n7-Signal / Mobile Eye would be excellent\nLogicMonitor would be good but not a requirement\nJob Type: Contract\nPay: $55.00 - $65.00 per hour\nWork Location: In person","company":"Cloud Rack Systems","rawCompany":"cloud rack systems","city":"Somerville","state":"MA","isRemote":false,"isActive":false,"createdAt":"2026-04-14T10:41:32.712Z","occupations":[{"code":"15-1241.00","title":"Computer Network Architects","slug":"computer-network-architects"},{"code":"15-1244.00","title":"Network and Computer Systems Administrators","slug":"network-and-computer-systems-administrators"},{"code":"15-1231.00","title":"Computer Network Support Specialists","slug":"computer-network-support-specialists"}],"industries":[{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"541519","title":"Other Computer Related Services","slug":"other-computer-related-services"},{"code":"541513","title":"Computer Facilities Management Services","slug":"computer-facilities-management-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Senior Network Engineer","description":"Title: Sr. Network Engineer\nLocation: Cambridge, MA (Onsite)\nHire Type: Contract\nYear of experience – 15 years\nLocation - 675 W Kendall St, Cambridge, MA 02142\nJob Description:\nExperience in Meraki, Infoblox, Cisco Enterprise Routers, Switches, ASA’s, FTD’s is a must\nNetwork SME\nA Senior Network Engineer to lead the stability, performance, and evolution of enterprise network. Own day to day operations, design and deliver minor projects and enhancements, and act as a key decision maker ongoing issues, standards, and incident response priorities. This role blends hands-on engineering with leadership teams to meet uptime, performance and scalability goals.\nEnsure availability and performance across LAN/WAN, WLAN, SD WAN, data center, and cloud interconnects; proactively remediate alerts and capacity issues.\nLead major incident, drive root cause analysis (RCA), implement corrective/preventive actions, and maintain post incident documentation.\nAuthor change plans, execute network changes during maintenance windows, and adhere to ITIL processes and risk controls.\nEstablish post-migration validation protocols and rollback prevention to ensure successful transitions and minimize operational risk.\nMaintain standardized configurations and golden templates; enforce baseline compliance and secure device hardening.\nAdminister network ACLs, firewalls, VPNs, segmentation, and NAC (e.g., 802.1X), coordinating closely with Security/IR teams.\nDevelop and tune dashboards, SNMP/NetFlow/sFlow, device telemetry, and syslog for actionable insights; maintain runbooks.\nManage TAC/service escalations, RMA, firmware/OS lifecycle, and bug impact assessments.\nScope, design, and deliver small to medium network projects (e.g., site cutovers, Wi Fi refreshes, routing redesigns, micro segmentation, SD WAN policy tuning).\nPublish L2/L3/WLAN standards, address/route plans, QoS models, and security patterns; maintain HLD/LLD documentation.\nDesign VPC/VNet topologies, hybrid connectivity (VPN/Direct Connect/ExpressRoute), routing and security policies across cloud/on prem.\nImplement network automation (e.g., Meraki APIs) to reduce toil and enforce compliance at scale.\nBenchmark, capacity plan, and optimize QoS, multicast, load balancing, and application delivery paths.\nBuild lab tests, pilots, and staged rollouts; define success criteria and rollback plans.\nEvaluate and select platforms, tooling, and designs based on business needs, risk, and total cost of ownership.\nMake real time tradeoffs during incidents and maintenance windows; decide sequencing, rollback thresholds\nEnforce standards, review changes, approve exceptions, and mentor engineers on best practices.\nPartner with Security, Cloud, Systems, and PMO to align roadmaps and deliver outcomes on time and within budget.\nExperience in Meraki, Infoblox, Cisco Enterprise Routers, Switches, ASA’s, FTD’s is a must\n7-Signal / Mobile Eye would be excellent\nLogicMonitor would be good but not a requirement\nJob Type: Contract\nPay: $55.00 - $65.00 per hour\nWork Location: In person","datePosted":"2026-04-14T10:41:32.712Z","dateModified":"2026-04-14T10:41:32.712Z","hiringOrganization":{"@type":"Organization","name":"Cloud Rack Systems","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Somerville","addressRegion":"MA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"57c5b1c4ebdd05764a2fdd44"},"url":"https://jobsearcher.com/jobs/57c5b1c4ebdd05764a2fdd44"}}