Senior Marine Networking Architect

Ocean Infinity; Southampton; Hybrid; GBP 90,000 - 140,000; Full time

Job summary

Ocean Infinity seeks a Senior Network Architect to design, build and secure networking, communications, and data pathways for USV and AUV systems. This hybrid role blends systems engineering with network and security expertise to deliver reliable, high‑performance connectivity.

You will work with mechanical, electrical, software and autonomy engineers to ensure secure, scalable communications across radios, satellites, cellular, mesh, Wi‑Fi, and onboard sensors in challenging marine environments.

Qualifications

• Degree in Networking, Telecommunications, Electrical/Systems Engineering, Computer Engineering, or similar.
• Strong experience with IP networking (routing, switching, VLANs, firewalls, QoS, VPNs).
• Familiarity with radio and wireless communications (RF fundamentals, antennas, propagation).
• Hands-on experience configuring network hardware (Cisco, MikroTik, Ubiquiti, Peplink, etc.).
• Understanding of satellite, 4G/5G, Wi‑Fi, or RF mesh communications.
• Experience building / managing cloud hosted services
• Comfortable building, testing, and troubleshooting real hardware.
• Experience with Linux networking tools.
• Experience of secure network architecture and implementation, including cybersecurity principles (secure comms, certificate management, hardening).

Responsibilities

• Act as Subject Matter Expert for network architecture.
• Architect, design and document end-to-end communications architecture for USVs/AUVs (radio, satcom, cellular, mesh, Wi‑Fi, acoustic).
• Define and maintain IP architectures, VLANs, firewall rules, QoS, bandwidth allocation, and encryption schemes.
• Produce communications system requirements, ICDs, test plans, and verification documentation.
• Conduct trade studies for new comms technologies (satcom, mesh, acoustic modems).
• Collaborate with mechanical, electrical, software, and autonomy engineers for seamless integration.
• Provide technical expertise to operations and project teams.
• Help design tailored communication solutions for customer missions/environments.
• Ensure network architectures meet security requirements for customer missions/environments.

Skills

IP networking

Routing & Switching

VLANs

Firewalls

VPNs

Wireless communications

RF communications

Cloud hosted services

Linux networking

Network security

Education

Degree in Networking/Telecommunications/Engineering

Tools

Cisco

MikroTik

Ubiquiti

Peplink

Job description

Ocean Infinity seeks a Senior Network Architect to design, build and secure networking, communications, and data pathways for USV and AUV systems. This hybrid role blends systems engineering with network and security expertise to deliver reliable, high‑performance connectivity.

You will work with mechanical, electrical, software and autonomy engineers to ensure secure, scalable communications across radios, satellites, cellular, mesh, Wi‑Fi, and onboard sensors in challenging marine environments.