Global Network Security DevOps Engineer

Valiant Technologies LLC; Spring (TX); On-site; USD 110,000 - 140,000; Full time

Job summary

VALIANT TECHNOLOGIES LLC seeks a Network Security Engineer to design, implement, and manage security across data centers, offices, and edge environments in a global, follow-the-sun on-call model.

You will operate and upgrade security appliances (Fortinet, Cisco, Juniper), build automated security infrastructure, and collaborate with Cybersecurity teams to sustain resilient networks. Strong communication in English required.

Qualifications

• Minimum 3 years of hands-on experience in network security.
• Experience with network security platforms: Cisco ASA (CSM), FTD (FMC), FortiGate (FortiManager), Juniper SRX (Junos Space).
• Strong understanding of networking fundamentals: TCP/IP, OSI model, routing/switching, ACLs, NAT, DNS.
• Familiarity with security technologies: firewalls, VPNs, IDS/IPS, encryption, authentication, vulnerability management, and incident response.

Responsibilities

• Design, implement, and manage network security technologies and services across regions and infrastructure environments (data centers, offices, edge).
• Operate and maintain network security appliances (Fortinet, Cisco, Juniper), including software upgrades, patching, and lifecycle activities.
• Build and manage network security infrastructure using DevOps practices and automation tools to reduce manual intervention.
• Support security operations including monitoring, analysis, incident response, and vulnerability management.
• Evaluate security advisories/vulnerabilities and provide timely recommendations and mitigations.
• Participate in ad-hoc vulnerability assessments and incident response efforts.
• Coordinate with stakeholders across Cybersecurity, Projects, and internal customers to deliver secure network solutions.
• Develop and maintain operational processes, runbooks, and documentation for ongoing support.
• Participate in a global "follow-the-sun" on-call support rotation.

Skills

Network security

Automation

Cloud networking

Tools

GitHub

Terraform

Ansible

Python

REST APIs

Jenkins

Jinja2

YAML

AWS

Azure

Job description

VALIANT TECHNOLOGIES LLC seeks a Network Security Engineer to design, implement, and manage security across data centers, offices, and edge environments in a global, follow-the-sun on-call model.

You will operate and upgrade security appliances (Fortinet, Cisco, Juniper), build automated security infrastructure, and collaborate with Cybersecurity teams to sustain resilient networks. Strong communication in English required.