We have an outstanding Contract position for aSenior Security Engineerto join a leading Company.This is a remote position. Pay Range: $55 - $80 **US Citizenship is required.** **Candidate must possess an Active Secret Security Clearance.** 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. 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. Basic Hiring Criteria : + 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). Desired Qualifications : + Bachelor's degree in Information Security, Computer Science, or related field (or equivalent experience). + 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. Benefits offered to vary by the contract. Depending on your temporary assignment, benefits may include direct deposit, free career counseling services, 401(k), select paid holidays, short-term disability insurance, skills training, employee referral bonus, affordable medical coverage plan, and DailyPay (in some locations). For a full description of benefits available to you, be sure to talk with your recruiter. VEVRAA Federal Contractor / Request Priority Protected Veteran Referrals / Equal Opportunity Employer / Veterans / Disabled To read our Candidate Privacy Information Statement, which explains how we will use your information, please visithttp://www.tadpgs.com/candidate-privacy/orhttps://pdsdefense.com/candidate-privacy/ The Company will consider qualified applicants with arrest and conviction records in accordance with federal, state, and local laws and/or security clearance requirements, including, as applicable: + The California Fair Chance Act + Los Angeles City Fair Chance Ordinance + Los Angeles County Fair Chance Ordinance for Employers + San Francisco Fair Chance Ordinance