Senior Security Engineer/Architect

Overview

Remote

Depends on Experience

Contract - W2

Skills

Juniper

Network Security

Cisco

Job Details

Senior Security Engineer/Architect

Department: Information Technology

Location: Remote - This role is fully remote with travel up to 50%.

Role Type: Contract (6-months+)

About Our Client

Our client is a long-standing leader in delivering advanced technology solutions to federal and defense organizations. They specialize in designing, implementing, and securing mission-critical systems for government and military operations across the U.S. Their offerings include IT infrastructure, network security, and systems integration services that help safeguard national interests. With a strong commitment to innovation, compliance, and operational excellence, they work closely with public sector clients to ensure secure, reliable, and high-performing networks.

Job Description

We are actively seeking a Senior Security Engineer with specialized experience in the migration of network security infrastructure from Juniper firewalls and routers to Cisco Next Generation Firewalls (NGFWs). This individual will play a key role in network security discovery, design, configuration, and implementation efforts across government and military networks.

The ideal candidate will have deep expertise in both Junos OS and Cisco NGFW/FTD, excellent troubleshooting skills, and a background working with U.S. government or military networks. This role will involve collaborating with multiple stakeholders, developing migration strategies, and ensuring security compliance with relevant federal and DoD standards.

Duties and Responsibilities

Lead the transition and migration of security infrastructure from Juniper to Cisco NGFW (including FTD and Firepower Management Center).
Utilize automated tools and manual methods to gather, document, and analyze existing Juniper configurations.
Translate current configurations and policy sets from Junos to equivalent Cisco NGFW configurations.
Develop detailed design documentation, migration plans, and cutover procedures in alignment with industry and DoD standards.
Design and implement robust, secure network architectures supporting government systems and missions.
Collaborate with stakeholders to validate security requirements and ensure compliance with applicable security frameworks.
Troubleshoot complex network and firewall issues in live production and pre-deployment environments.
Provide subject matter expertise during security audits, assessments, and system accreditations.

Required Experience/Skills

Active Secret security clearance.
Minimum 7+ years of experience in network security engineering.
Proficiency in Juniper firewalls and routers (Junos OS), and Cisco NGFW solutions, particularly Firepower Threat Defense (FTD) and Firepower Management Center (FMC).
Demonstrated experience using tools or scripting (e.g., Python, Ansible, or third-party tools) to extract and analyze configurations.
Strong knowledge of network security design principles, access control, NAT, VPN, IDS/IPS, and segmentation strategies.
Hands-on experience with firewall migrations and configuration translation projects.
Strong troubleshooting skills in complex multi-vendor environments.
Previous experience supporting military or U.S. government IT environments, with knowledge of applicable regulations (e.g., NIST 800-53, DISA STIGs).

Nice-to-Haves

Cisco certifications: CCNP Security, Cisco Certified Specialist – Firepower Threat Defense, or equivalent.
Juniper certifications: JNCIS-SEC or JNCIP-SEC.
Experience with configuration management and automation tools.
Familiarity with Zero Trust architectures and network segmentation best practices.
Bachelor’s degree in Information Security, Computer Science, or related field (or equivalent experience).

Education

Bachelor’s degree in Information Security, Computer Science, or related field (or equivalent experience).

Pay & Benefits Summary

Pay rate up to 85/h W2

Call-to-Action

Apply now to join a team making a critical impact on the security and reliability of government and military networks.

Employers have access to artificial intelligence language tools (“AI”) that help generate and enhance job descriptions and AI may have been used to create this description. The position description has been reviewed for accuracy and Dice believes it to correctly reflect the job opportunity.