Senior Network Engineer – Cisco Meraki & ISE
Unisys · São Paulo
What success looks like in this role:
We are looking for a Meraki focused Network Engineer with deep hands-on expertise in routing, switching, and wireless across Cisco Meraki and Cisco ISE platforms. The role centers on designing, implementing, and managing enterprise network environments ensuring high availability, security, and scalability across cloud-managed infrastructures.
The ideal candidate brings 4-6 years of proven experience with Cisco Meraki (MX, MS, MR) and Cisco ISE, with a solid command of network access control, segmentation, and policy enforcement. They will serve as a trusted technical resource for clients, internal teams, and global vendors leading projects from assessment through delivery in mission-critical 24x7 environments.
Key Responsibilities:
Meraki Network Design & Deployment
Architect, implement, and optimize enterprise network solutions across Cisco Meraki MX (security/SD-WAN), MS (switching), and MR (wireless) product lines.
Configure and manage Meraki Dashboard at scale including templates, tagging, alert policies, and API-driven automation.
Design SD-WAN topologies using Meraki MX with Auto VPN.
Cisco ISE & Network Access Control
Deploy and manage Cisco ISE for 802.1X authentication, MAB, guest access portals, and BYOD onboarding workflows.
Build and maintain ISE authorization policies, profiling, posture assessment, and RADIUS/TACACS+ integration.
Integrate Meraki with ISE for seamless NAC enforcement across wired, wireless, and VPN access scenarios.
Wireless Infrastructure
Plan and deploy Meraki MR wireless networks including RF planning, AP placement, SSID design, and roaming optimization.
Troubleshoot wireless issues including RF interference, coverage gaps, client roaming failures, and authentication problems.
Implement wireless security frameworks: WPA3, 802.1X/EAP, rogue AP detection, and WIDS/WIPS using Meraki and ISE.
Troubleshooting & Optimization
Diagnose and resolve complex network issues across all OSI layers from physical connectivity to application-layer performance.
Leverage Meraki Dashboard analytics, packet capture, and event logs for root cause analysis and proactive monitoring.
Collaborate with manufacturers and vendors for escalations and resolution of platform-level issues.
Client Interaction & Project Execution
Lead client-facing engagements: network assessments, design reviews, project presentations, and post-deployment reporting.
Drive network projects in collaboration with global teams and vendors, ensuring delivery in mission-critical environments.
Provide both remote and on-site support, maintaining high performance and availability across all supported infrastructures.
You will be successful in this role if you have:
You Will Be Successful in This Role if You Have:
5–6 years of hands-on experience with Cisco Meraki (MX, MS, MR) in enterprise environments.
2–4 years of experience with Cisco ISE, policy configuration, RADIUS/TACACS+, and 802.1X/NAC deployments.
Understanding of routing protocols (BGP, OSPF, EIGRP) and switching fundamentals (VLANs, STP, port-channels).
Experience designing and supporting SD-WAN solutions using Meraki MX with Auto VPN and traffic shaping.
Familiarity with ITIL service management frameworks and working within NOC or managed service environments.
Ability to work in 24x7 critical environments, including on-call availability outside regular business hours.
Strong communication skills, able to present technical findings to both technical and non-technical audiences.
Preferred Certifications:
Cisco Meraki Solutions Specialist (CMSS)
CCNP Enterprise
CWNA
CCNA
Technical Competencies:
Meraki Platform
Deep expertise in Meraki Dashboard, template management, API integration, firmware strategy, and multi-org management.
Meraki MX: SD-WAN, site-to-site Auto VPN, content filtering, and IDS/IPS.
Meraki MS: Layer 2/3 switching, RSTP, dynamic ARP inspection, DHCP snooping, and link aggregation.
Meraki MR: SSID design, RF profiles, band steering, 802.11ax (Wi-Fi 6/6E), and Air Marshal WIDS.
Cisco ISE & Identity
Authentication: 802.1X (EAP-TLS, PEAP, EAP-FAST), MAB, WebAuth, guest portals, and BYOD flows.
RADIUS and TACACS+ for device administration and AAA integration with Meraki and traditional Cisco infrastructure.
Other Requirements:
On-call availability outside regular business hours and weekends for critical incident response.
Strong documentation skills: network diagrams, runbooks, and change management records.
Collaborative mindset, comfortable working across global teams, vendors, and clients in a managed services environment.
Unisys is proud to be an equal opportunity employer that considers all qualified applicants without regard to age, caste, citizenship, color, disability, family medical history, family status, ethnicity, gender, gender expression, gender identity, genetic information, marital status, national origin, parental status, pregnancy, race, religion, sex, sexual orientation, transgender status, veteran status or any other category protected by law.
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