Senior Network and Security Engineer

Sparton is an innovative defense contractor headquartered in DeLeon Springs, Florida, with a rich heritage dating back to 1900. Renowned for our exceptional manufacturing capabilities, we specialize in producing high-quality sonobuoys critical to the United States' undersea warfare arsenal, enhancing national security against current and future adversaries. But we are more than manufacturers; we are problem solvers. Our team of dedicated engineers and skilled professionals' tackles some of the most challenging issues in defense technology. Our expertise includes advanced research systems, maritime solutions, sophisticated sensor technologies and payload delivery capabilities.

Job Summary

The Senior Network and Security Engineer is the organization's primary subject-matter expert for network architecture, operations, and performance. This role designs, deploys, and maintains the company's LAN/WAN, wireless, VPN, and cloud network infrastructure.

In addition, the engineer supports the Information Security team by managing firewalls, network security controls, and assisting with security tooling related to network visibility, monitoring, and threat mitigation.

Responsibilities and Tasks

• U.S. Citizenship is required.
• Design, implement, and maintain enterprise network infrastructure (LAN/WAN, SD-WAN, wireless, routing/switching, VPN).
• Serve as the lead architect for network upgrades, expansions, performance optimization, and refresh cycles.
• Configure and manage core network devices: switches, routers, WLCs, VPN appliances and related equipment.
• Maintain IP addressing schemes, VLAN segmentation, routing policies, QoS, and network redundancy/high availability.
• Oversee network monitoring, telemetry, performance analysis, and capacity planning.
• Perform root-cause analysis and advanced troubleshooting for network outages, degradation, and configuration issues and implement long-term corrective actions.
• Administer network-related cloud services (Azure/AWS networking, ExpressRoute, virtual firewalls, IPSec tunnels).
• Provide technical expertise for infrastructure-related projects and security initiatives.
• Assist in developing standards, documentation, diagrams, and runbooks for network/security operations.
• Mentor junior team members and provide escalation support for network/security issues.
• Configure, maintain, and tune enterprise firewalls (Fortinet, Cisco Firepower).
• Participate in incident response, especially for network-related security events.
• Enforce network security hardening, least privilege, segmentation, and secure remote access.
• Review firewall rules, NAT policies, and VPN configurations for accuracy and compliance.
• Support InfoSec in compliance efforts (NIST 800-171/172, CMMC, etc.).
• Support InfoSec in managing:

• IDS/IPS systems
• Secure web gateways / proxies
• Network-access control (NAC)
• Logging/monitoring platforms (SIEM, NDR)
• Vulnerability scanners
• Zero-trust and segmentation tools

• BS in Engineering, computer Science or related field, or equivalent education and experience.
• 7+ years of experience in network engineering or network architecture.
• 3+ years of experience in cyber security engineering.
• Ability to architect and troubleshoot complex network environments.
• Hands-on experience with:
  • Monitoring tools (SolarWinds)
  • Log aggregation and SIEM tools
  • Cloud networking (Azure/AWS)
• Advanced knowledge of:
  • Routing/switching (OSPF, BGP, STP, VRRP/HSRP, VLANs)
  • Enterprise firewalls (Fortinet, Cisco)
  • VPN (IPSec/SSL), WAN technologies, load balancing
  • Wireless networking and WLC administration
  • ACLs, segmentation, micro segmentation
  • IDS/IPS concepts
  • TLS, DNS, DHCP, NAC

• CompTIA Network+
• CompTIA Security+
• Preferred industry certifications:
  • CCNA
  • CCNP
  • CISSP
• Good customer service skills.
• Ability to communicate effectively.
• Strong documentation and communication skills.
• Experience in environments with compliance requirements (HIPAA, PCI, NIST/CMMC).
• U.S. Citizenship is required.

• Less than 25% travel required.
• The physical demands describe here are representative of those that must be met by an employee to successfully perform the essential functions of the job. The work environment characteristics described are representative of those an employee may encounter while performing the essential functions of this job. This job operates in a professional office environment and a manufacturing environment. The employee may be exposed to fumes or airborne particles, moving mechanical parts and vibration. The employee is occasionally exposed to a variety of extreme conditions in the plant. The noise level in the work environment may be loud.
• While performing the duties of this job, the employee is frequently required to sit, stand, talk, and communicate, use hands/finger, feel, and reach with arms. This position requires the ability to lift, bend or stoop as necessary up to 20lbs.

• Robust medical, dental, vision, & disability coverage.
• Healthcare concierge to help you navigate your benefit selections.
• Virtual health solutions for physical therapy, menopause, and diabetes.
• Company paid Basic Life Insurance. Additional Life & AD&D Insurances are available.
• On-site wellness clinic.

• Competitive compensation.
• 401k program to plan for your future with company match 75% up to 8% plus 1% Employer contribution.
• Company Paid Time Off (Vacation and Sick).
• Paid parental leave.
• Adoption assistance.
• Fertility and family building assistance.

• Flexible work schedules available based on position:
  • 9/80 schedule providing every other Friday off
  • 5/8s
  • 4/10s
  • 3/12s
• Lifestyle spending account.
• Perks at work.
• Generous employee referral program.
• Tuition reimbursement.
• Voluntary benefits available: longer term care, legal, identity theft, pet Insurance, and many more options