Job Title: Senior Network Engineer/IPv6 SME Location: Alexandria, VA Type: Contract Compensation: 70-85/hr Work Model: Onsite - onsite Hours: 40.0 Security Clearance: Not specified Overview At least 5 years of demonstrated IPv6 experience covering architecture, addressing, routing, implementation, migration, dual-stack environments, and troubleshooting. Responsibilities - Provide network management and IPv6 architecture design support for the Department of HUD. - Lead the implementation and augmentation of IPv6 into the existing environment. - Design, implement, and troubleshoot enterprise-scale IP networks, including enterprise routing, switching, and protocols such as BGP, OSPF/OSPFv3, EIGRP, IS-IS, IPv4/IPv6, DNS, DHCP/DHCPv6, ICMP/ICMPv6, TCP/IP, and SNMP. - Support network modernization, migration, or transformation in large, complex environments including data centers, cloud, LAN/WAN, remote-access, or Internet environments. - Develop and review network diagrams, implementation plans, technical standards, assessments, and risk evaluations. - Architect and implement zero trust solutions and support network security technologies including firewalls, access control, segmentation, and monitoring. - Collaborate with stakeholders, lead technical discussions, identify risks, and develop remediation strategies. - Mentor personnel and brief senior stakeholders on network architecture and project updates. Requirements - Minimum of 10 years of professional experience in network engineering, architecture, or related telecommunications disciplines. - At least 5 years of demonstrated IPv6 experience covering architecture, addressing, routing, implementation, migration, dual-stack environments, and troubleshooting. - Excellent verbal, written, and presentation skills with ability to communicate effectively with agency leaders. - Experience designing, implementing, and troubleshooting enterprise IP networks. - Proficiency with enterprise routing/switching and protocols such as BGP, OSPF/OSPFv3, EIGRP, IS-IS, IPv4/IPv6, DNS, DHCP/DHCPv6, ICMP/ICMPv6, TCP/IP, and SNMP. - Knowledge of network security technologies including firewalls, access control, segmentation, and security monitoring. - Experience with Cisco, F5, and CrowdStrike. - Ability to develop high-level and low-level design documentation, network diagrams, implementation plans, and risk assessments. - Experience supporting network modernization projects, migrations, and large-scale environments. - Strong technical communication, documentation, stakeholder management, and leadership skills. - Relevant certifications such as CCIE/CCNP, JNCIP/JNCIE, IPv6 credentials, Azure Netowrk Engineer, AWS Advanced Networking, CISSP, Security+, or equivalent are preferred. - Bachelor's degree in Computer Science, Information Technology, Electrical Engineering, Telecommunications, or related field is preferred. Equivalent certifications and professional experience may be considered. System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan. System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law. #M1 #LI-VR1 Ref: #851-Rockville-S1 System One, and its subsidiaries including Joulé, ALTA IT Services, CM Access, TPGS, and MOUNTAIN, LTD., are leaders in delivering workforce solutions and integrated services across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible full-time employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan. System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.