Senior Network Design Engineer

Position Title : Senior Network Design Engineer Location : Chantilly, VA Clearance Requirements : TS / SCI Position Status : Full Time Pay Rate : Competitive, based on experience

Position Description : Join a dynamic team as a Senior Network Design Engineer, where you'll architect and optimize cutting-edge network solutions for enterprise and service provider environments. This role offers the opportunity to lead transformative projects, including SD-WAN migrations and datacenter integrations, while collaborating with cross-functional teams to deliver secure, scalable, and high-performance network infrastructure. If you're a passionate, innovative engineer with expertise in routing protocols, VPN solutions, and ISP integration, this is your chance to make a significant impact in a fast-paced, mission-critical setting.

Key Responsibilities :

• Design, implement, and manage enterprise and service provider networks, ensuring seamless integration with commercial ISPs (e.g., AT&T) and datacenter environments.
• Lead the design and deployment of Cisco-based SD-WAN solutions, transitioning from JUNOS platforms.
• Configure and optimize BGP, MPLS, and enterprise routing architectures for performance and reliability.
• Manage and troubleshoot WAN connectivity, ensuring high availability and performance tuning.
• Deploy and maintain secure VPN solutions, including site-to-site and IPsec tunnels over the Internet.
• Collaborate with diverse teams to translate business needs into resilient, scalable network designs.
• Document network configurations, designs, and operational procedures with clarity and precision.
• Provide advanced troubleshooting and resolution for complex, escalated network issues.
• Mentor junior engineers, fostering a culture of knowledge sharing and technical excellence.

Required Skills / Education :

IAT-III (e.g., CISSP, CASP+, or equivalent).

10+ years of proven experience working with commercial ISPs and integrating connectivity into datacenter environments.

Exceptional verbal and written communication skills, with the ability to convey complex technical concepts to diverse audiences.

About Seneca Resources At Seneca Resources, we are more than just a staffing and consulting firm-we are a trusted career partner. With offices across the U.S. and clients ranging from Fortune 500 companies to government organizations, we provide opportunities that help professionals grow their careers while making an impact.

When you work with Seneca, you're choosing a company that invests in your success, celebrates your achievements, and connects you to meaningful work with leading organizations nationwide. We take the time to understand your goals and match you with roles that align with your skills and career path. Our consultants and contractors enjoy competitive pay, comprehensive health, dental, and vision coverage, 401(k) retirement plans, and the support of a dedicated team who will advocate for you every step of the way.

Seneca Resources is proud to be an Equal Opportunity Employer, committed to fostering a diverse and inclusive workplace where all qualified individuals are encouraged to apply.