Senior Network Consulting Engineer (NCE) – Security

Layer2; São Paulo; Híbrido; BRL 320 000 - 560 000; Tempo integral

Resumo da oferta

Layer2 in São Paulo seeks a Senior Network Consulting Engineer (Security) to act as the dedicated technical point of contact for a large enterprise with a mission-critical network. This hybrid role requires regular onsite presence at customer facilities in São Paulo and offshore opportunities may vary.

You will combine deep hands-on expertise with Cisco FTD and Cisco ISE with strong consulting, troubleshooting and communication skills to resolve issues quickly and improve operational efficiency.

Qualificações

• 7+ years in network security engineering.
• 5+ years with Cisco Firepower and Cisco ISE.
• Experience in large-scale, mission-critical environments.
• CCIE Security or CCNP Security (equiv.)
• Fluent Portuguese and professional English.
• Bachelor's degree in CS/Engineering.

Responsabilidades

• Act as technical point of contact for escalations and outages.
• Lead periodic technical reviews and present on high-severity cases.
• Deliver knowledge transfer sessions to client teams.
• Provide support during maintenance windows and upgrades.
• Work with vendor TAC and engineering on root cause analysis.

Conhecimentos

Cisco FTD

Cisco ISE

Network security

VPNs

Routing & switching

Vendor TAC

Change management

Cloud platforms

Automation (Ansible/Terraform)

APIs

Formação académica

Bachelor's degree in Computer Science/Engineering

CCIE Security

CCNP Security (equivalent experience)

Ferramentas

Ansible

Terraform

APIs

AWS

Azure

GCP

Descrição da oferta de emprego

We are looking for a Senior Network Consulting Engineer specialized in Security to act as the dedicated technical point of contact for a large enterprise customer operating a mission-critical, highly available network. This is a hybrid role with regular onsite presence at the customer's facilities in São Paulo; the onsite schedule may vary according to the customer's needs.

This is a long-term engagement where you will act as a trusted advisor, combining deep hands‑on expertise in Cisco Firepower Threat Defense (FTD) and Cisco Identity Services Engine (ISE) with strong consulting, troubleshooting and communication skills.

You will be embedded in the customer's environment, understand how their business and operations work, and help them resolve critical issues faster, keep the network available and continuously improve operational efficiency.

What you will do

Problem resolution and escalations

Act as the technical point of contact for escalations, providing hands‑on troubleshooting for critical network outages and complex network and security issues. Serve as the bridge between the customer's operations and vendor support teams, maintaining detailed knowledge of the customer's network, critical sites and operational procedures so that escalations are handled with full context. Support engineering teams in root cause analysis, next steps and corrective action recommendations following critical incidents.

Technical reviews

Lead periodic technical reviews covering the status of activities and deliverables, corrective action plans and priorities for the upcoming quarter. Prepare and support presentations on high‑severity cases and defect trending. Help the customer plan and prioritize proactive recommendations and best practices. Perform software and patch evaluations (risk assessments, security advisories, bug reviews) to support upgrade and lifecycle decisions.

Knowledge transfer

Deliver knowledge transfer sessions, product training and best‑practice reviews to strengthen the troubleshooting skills of the customer's technical teams.

Maintenance window support

Provide support during planned maintenance windows for changes and upgrades, which may occasionally take place outside business hours.

Core technical skills

• Strong hands‑on expertise with Cisco Firepower Threat Defense (FTD) and Cisco ISE.
• Advanced troubleshooting of network security, VPNs, routing and switching.
• Experience working escalations with vendor TAC and engineering teams.
• Solid understanding of patching strategies, upgrades and change management in mission‑critical environments.
• Exposure to cloud platforms (AWS, Azure, GCP) and automation tools (Ansible, Terraform, APIs) is a plus.

Experience and certifications

• 7+ years of experience in network security engineering, including 5+ years working with Cisco Firepower and 5+ years with Cisco ISE.
• Proven experience in large‑scale, enterprise, mission‑critical environments.
• CCIE Security preferred; CCNP Security accepted with equivalent experience.
• Bachelor's degree in Computer Science, Engineering or a related field.
• Fluent Portuguese and professional English.
• Clear communication with both executive and technical stakeholders.
• Customer focus and composure under pressure in critical situations.
• Strong presentation and documentation skills.
• Proactive, analytical and detail‑oriented.
• Collaborative team player, comfortable mentoring junior engineers.