Software Defined Networking Engineer (SME) - Mid – Senior

Software Defined Network Engineer Subject Matter Expert (SME) will be hired on the Engineering team.

Responsibilities

Administration

• Attending planning sessions to understand business and technical requirements.
• Recommending cost-effective, technically feasible network solutions that meet initial capacity requirements, provide long-term scalability, and anticipate future growth and performance needs.
• Adhering to and following change management policies that facilitate a stable, well-documented network infrastructure that meets organizational requirements. This includes the creation, submission, review, and periodic representation of complex changes in weekly change management meetings.
• Documenting projects, support actions and other administrative artifacts to serve as reference material for fellow engineers and management staff.
• Ensuring incidents and service requests adhere to established service level agreements (SLAs).
• Pursing professional development opportunities through certifications, training, or conferences that enhance both technical and non-technical skillsets relevant to their role within the organization.
• Submitting written and verbal status reports as requested to management staff.

Network Administration

• Lead the design and architecture of our enterprise software-defined network infrastructure, including SD-WAN, Software-Defined LAN, and data center fabrics (e.g., Cisco ACI).
• Deploy, configure, and manage SDN controllers and associated network components to build a cohesive, automated, and policy-driven network.
• Serve as the highest point of escalation for complex issues related to overlay networks, fabric management, and network virtualization.
• Drive network automation initiatives using tools like Ansible, Python, and REST APIs to streamline operations, reduce manual effort, and ensure consistency.
• ·Implement and manage network security policies, including firewalls, VPNs, and access control lists (ACLs) to protect the network infrastructure.
• Create and maintain detailed network documentation, diagrams, and standard operating procedures. Provide technical guidance and mentorship to junior engineers

*This position is designed to be flexible, with responsibilities evolving to meet business needs and enable individual growth.

Qualifications

• 8570 Compliant / CCNA OS cert
• Must be able to obtain TS security clearance.
• Proven expertise in designing, deploying, and managing the Cisco SD-WAN (Viptela) solution.
• In-depth knowledge of routing protocols, including OMP, BGP, OSPF, and EIGRP
• Strong understanding of core networking concepts such as LAN/WAN, VPN, QoS, and network security.
• Excellent analytical and problem-solving skills, with the ability to troubleshoot complex network issues
• Experience with Public Key Infrastructure (PKI) components including certificate authorities, hardware security modules, certificate revocation lists, certificate requests, and certificate installation
• Advanced knowledge of networking and systems administration; and the ability to troubleshoot problems
•   Experience with traffic monitoring tools such as TCPDump, Wireshark as well as analyzing network traffic.
• Knowledge and experience working with Virtual Private Networks (VPN), Intrusion Prevention Systems (IPS), and associated technologies preferred
• Experience with VXLAN network overlays
• Proven skills in discussing and planning application architecture with cross-functional application, business, technical teams and third-party vendors.
• Should be capable of organizing, tracking and managing multiple projects and deadlines
• Preferred applicants will also be familiar with government information assurance standards including DISA STIGs, NIST 800-53, IAVAs management, auditing and accreditation processes.

Preferred

• Experience with the design and architecture of a global SD-WAN infrastructure, with a focus on scalability, optimization, performance, and security while ensuring low latency, high availability, and efficient traffic routing.
•  Experience deploying and configuring Cisco SD-WAN (Viptela) components, including Manager, Controller, Validator, and cEdge routers.
• B.A or B.S. in a degree such as Computer Science, Information Systems or Information Technology or 7 years related experience.
• 7-10 years of experience in network engineering, with a minimum of 4-5 years of hands-on experience with SD-WAN and SD-LAN technologies.
• Experience with F5, Cisco ISE, Armis
• Experience with Cloud technologies: AWS, Azure, and OCI.
• Experience working in a healthcare environment.

Why Work for Us?

 Core4ce is a team of innovators, self-starters, and critical thinkers—driven by a shared mission to strengthen national security and advance warfighting outcomes.

We offer:

• 401(k) with 100% company match on the first 6% deferred, with immediate vesting
• Comprehensive medical, dental, and vision coverage—employee portion paid 100% by Core4ce
• Unlimited access to training and certifications, with no pre-set cap on eligible professional development
• Tuition assistance for job-related degrees and courses
• Paid parental leave, PTO that grows with tenure, and generous holiday schedules
• Got a big idea? At Core4ce, The Forge gives every employee the chance to propose bold innovations and help bring them to life with internal backing.

Join us to build a career that matters—supported by a company that invests in you.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy), national origin, disability, veteran status, age, genetic information, or other legally protected status.

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