***Must Be able to obtain a Public Trust*** Description The Lead Security Engineer will assist the Cybersecurity Team's mission by supporting the implementation of IPv6 networking capabilities by joining a dedicated team of cybersecurity professionals who collaborate, cooperate, and facilitate maintaining and enhancing the security posture of DOT information systems and underlying infrastructure. These information systems and their supporting infrastructure support the DOT mission of managing and maintaining United States critical infrastructure ( highways, bridges, roads, airports, etc.). Additional Skills & Qualifications Job Role Specific Requirements: - Engage with Federal Leadership and counterparts to support designing, implementing, and maintaining secure IPv6 network architectures, including firewalls and network segmentation; - Engage with network, system and application/software administrators/engineers to troubleshoot issues associated with IPv6 security related technologies - Support regular assessments to identify potential vulnerabilities in IPv6 networks, services, and applications and develop strategies to mitigate these risk - Support IPv6 related security incidents - Support development and enforcement of IPv6-specific security policies, standards, and procedures to ensure compliance with industry best practices and regulatory requirement - Maintain detailed documentation of IPv6 network security configurations, incident reports, and security procedures - Work IPv6 cybers related security operations ITSM (ServiceNow) assigned tickets to completion - Participate in relevant CyberSecurity and Security Operations (SecOps) meetings - Collaborate on and provide feedback on cybersecurity solutions that enhance DOT security posture with a focus on IPv6 Preferred Skills and Qualifications - In-depth knowledge of networked environments and topologies, both IPv4 and IPv6, and the communication protocols implemented - A comprehensive understanding of cybersecurity best practices and industry standards for implementing IPv6 securely - Hands on experience with firewalls, routers, switches, proxies, cloud-based systems, operating systems, databases, networking, Data Loss Prevention, Endpoint Security Software, Network Intrusion Detection and Prevention Systems (IDS/IPS) and host-based IDS and IPS and general cyber security best practices and industry standards Pay and Benefits The pay range for this position is $ - $ Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: • Medical, dental & vision • Critical Illness, Accident, and Hospital • 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available • Life Insurance (Voluntary Life & AD&D for the employee and dependents) • Short and long-term disability • Health Spending Account (HSA) • Transportation benefits • Employee Assistance Program • Time Off/Leave (PTO, Vacation or Sick Leave) Workplace Type This is a hybrid position in Washington,DC. Application Deadline This position is anticipated to close on Aug 20, 2025. h4>About TEKsystems:

We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company. The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law. About TEKsystems and TEKsystems Global Services

We’re a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. We’re a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. We’re strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We’re building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.