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Infojini Inc

Cisco Firewall Engineer (USC only/W2)

On site

Brentwood, United states

$ 57 /hour

Mid level

Freelance

18-09-2025

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Skills

Network Security Firewalls Risk Assessment Organization

Job Specifications

Title: Cisco Firewall Engineer

Location: Seven Springs Way, Suite 200, Brentwood, TN, 37027

Duration: 06+ Months (Tem to pem)

Only W2 and Citizen

Description:

We are seeking a skilled Firewall Engineer to join our team, playing a pivotal role in strengthening and maintaining our organization's security posture within a Cisco FMC/FTD/FTDv environment.

The successful candidate will configure, manage, and optimize firewall rulebases, ensuring robust protection against emerging threats and vulnerabilities.

Responsibilities include designing and managing leaf-and-spoke architectures for multi-tenancy, supporting our global expansion, and maintaining secure DMZ configurations.

The engineer will proactively detect and respond to security events using Cisco Secure Firewall Threat Defense and Malware Protection, conduct firewall rule audits, and leverage FireMon for policy management and risk assessment. Additional duties involve developing and maintaining firewall policies and documentation to align with compliance requirements, supporting security audits, and troubleshooting firewall-related issues (connectivity, misconfigurations, performance) using packet captures, logs, and CLI. The role includes implementing and managing VPNs, NAT policies, application-layer controls, and DMZ configurations across hybrid cloud environments, as well as mentoring team members to foster technical expertise.

Required Skills

* Proven expertise in configuring and managing Cisco Firepower Management Center (FMC), Firepower Threat Defense (FTD), and Firepower Threat Defense Virtual (FTDv) environments.

* Strong experience with leaf-and-spoke firewall architectures and multi-tenant setups to support global scalability.

* In-depth knowledge of Cisco Secure Firewall Threat Defense and Malware Protection for proactive threat detection and response.

* Proficiency in using FireMon Policy Manager, Policy Planner, and Risk Analyzer for firewall policy management, optimization, and risk assessment.

* Experience conducting firewall rule audits, cleanups, and optimizations to eliminate redundant or unused rules, enhancing security posture.

* Ability to troubleshoot and resolve firewall-related issues, including connectivity, misconfigurations, and performance bottlenecks, using packet captures, logs, and CLI.

* Expertise in implementing and managing VPNs, NAT policies, application-layer controls, and DMZ configurations in hybrid cloud environments.

* Strong understanding of network security principles, firewall policies, and compliance requirements to maintain a robust security posture.

* Experience developing and documenting firewall policies and procedures to meet industry best practices and compliance standards.

* Ability to support security audits and assessments, ensuring adherence to organizational security policies.

* Commitment to staying current with emerging threats, vulnerabilities, and security technologies to proactively enhance security.

* Strong mentoring skills to guide and develop team members' technical expertise.

Nice-to-Have:

* Experience with Cisco Identity Services Engine (ISE) for network access control.

* Knowledge of Cisco Access Control Lists (ACLs) for enhanced network security configuration.

* Familiarity with Palo Alto firewalls

Required Years of Experience: 5 Years

Thanks

Nitin

(201) 645-2098

About the Company

Founded in 2006, Infojini Inc. brings over 18 years of proven expertise in staff augmentation, outsourcing solutions, IT consulting and product development. With a team of certified and seasoned professionals, we follow a disciplined, results-driven approach to deliver high-quality solutions that accelerate project timelines and drive measurable business outcomes. At Infojini, we are driven by innovation and excellence. Our commitment to delivering cutting-edge solutions and sourcing top-tier talent ensures we consistently e... Know more