Network and Security Engineer, Defense

Applied Intuition • Sunnyvale, CA

1d • Onsite

About The Position

Applied Intuition is seeking a senior, hands-on Network and Security Engineer to architect high-performance, high-assurance networks for defense programs. The role designs networks capable of moving large volumes of radar, camera, and vehicle data with low, predictable latency, while securing them for classified environments up to Impact Level 6 (IL6). The engineer will shape technical direction across defense programs while remaining directly involved in solving complex networking and security challenges.

The role works closely with customers, government stakeholders, and product teams to understand mission needs and deployment constraints. It sets the technical roadmap for defense networking and security, leads design reviews, mentors engineers across teams, and serves as a trusted technical voice with customers and government stakeholders.

Applied Intuition is an in-office company. Full-time employees are expected to primarily work from an Applied Intuition office five days a week, with flexibility for occasional remote work and schedule adjustments. The company describes compensation for eligible roles as including base salary, equity, and benefits; the position-specific salary range is not provided.

Requirements

• 15+ years of experience in network engineering and network security engineering, including significant experience architecting large-scale or mission-critical networks.
• Deep expertise designing and operating high-throughput data center or HPC networks, including routing, switching, QoS, congestion control, and performance tuning.
• Hands-on experience securing networks in regulated or classified environments, including segmentation, encryption, and identity-based access controls.
• Strong working knowledge of security frameworks such as NIST 800-53 and the DoD Risk Management Framework (RMF).
• Scripting and automation ability in Python, Go, or Bash, and experience with infrastructure as code tools such as Ansible, Terraform, Nornir, or similar.
• Track record of setting technical direction for multi-engineer efforts as an architect, technical lead, or senior individual contributor, and mentoring engineers.
• Track record of owning complex technical problems end to end and driving them to completion in a fast-paced environment.
• Ability to obtain and maintain a U.S. security clearance; active TS/SCI is preferred.
• Must be a U.S. citizen and hold or be eligible to obtain and maintain a U.S. security clearance.
• BS/MS degree in computer science, electrical engineering, or equivalent experience.

Nice To Haves

• Experience with sensor data transport such as GigE Vision, VITA 49, or other high-rate radar and camera streaming protocols.
• Familiarity with open architecture approaches such as MOSA, SOSA, and VPX-based systems.
• Experience with SmartNICs, DPUs, DPDK, or eBPF for packet processing and in-network security.
• Experience with Commercial Solutions for Classified (CSfC), Type 1 encryption devices, or cross-domain solutions.
• Exposure to Navy and DoD frameworks such as DISA STIGs, the DoD Zero Trust Reference Architecture, and NAVWAR/NAVSEA cybersecurity guidance.
• Experience with in-vehicle and avionics networks, including automotive Ethernet, ARINC 664/AFDX, and MIL-STD-1553.
• Active TS/SCI security clearance.

Responsibilities

• Architect and build high-bandwidth network fabrics (100/400/800GbE) carrying radar, EO/IR camera, and vehicle bus data from sensor edge to compute and storage.
• Design deterministic, low-latency transport using technologies such as TSN, PTP/IEEE 1588, RDMA/RoCEv2, and multicast.
• Bridge in-vehicle networks, including automotive Ethernet, CAN, and legacy military buses, with modern IP-based backbones in rugged, size- and power-limited platforms.
• Design and implement security architectures for IL5/IL6 accreditation, including network segmentation, encryption in transit, PKI, and cross-domain data flows.
• Apply zero trust principles across on-premises, tactical edge, and cloud environments.
• Automate network and security configuration with infrastructure as code and build continuous compliance checks into deployment pipelines.
• Build network observability through streaming telemetry, flow analysis, and security monitoring.
• Translate Navy and DoD guidance into practical engineering decisions and modern, maintainable solutions.
• Work with customers, government stakeholders, and Applied product teams to understand mission needs and deployment constraints.
• Set the technical roadmap for defense networking and security, lead design reviews, mentor engineers, and represent technical direction to customers and government stakeholders.
• Own complex technical problems end to end and drive them to completion.

Benefits

• Comprehensive health, dental, vision, life, and disability insurance coverage.
• 401(k) retirement benefits with employer match.
• Learning and wellness stipends.
• Paid time off.
• Equity in the form of options and/or restricted stock units may be included in compensation for eligible roles.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior