Tier 3 Network Engineer
Hackajob
IT
United Kingdom
Posted on May 12, 2026
hackajob is collaborating with Raytheon to connect them with exceptional professionals for this role.
Key Responsibilities
Key Responsibilities
- Design, deploy, and maintain secure, scalable network infrastructure across on-premise, cloud, and hybrid environments.
- Ensure network architectures meet latency, reliability, throughput, and availability requirements for Live, Virtual, and Constructive training systems.
- Perform network traffic analysis, capacity planning, and bandwidth optimisation to maintain performance targets.
- Implement and support resilient network solutions, including redundancy and failover mechanisms for mission-critical operations.
- Configure, deploy, and monitor routing, switching, firewall, VPN, and intrusion detection systems in line with security policies.
- Support the implementation and troubleshooting of mobile and RF communications technologies, including 4G/LTE and 5G, in complex or austere environments.
- Conduct network testing, validation, and performance tuning to ensure interoperability and real-time data exchange across distributed systems.
- Collaborate with engineering and simulation teams to translate technical requirements into network design specifications.
- Provide technical support and fault resolution in collaboration with Through Life Support teams for network-related incidents.
- Contribute to the development and maintenance of High-Level Design (HLD) and Low-Level Design (LLD) documentation.
- Support deployable and remote network solutions for training exercises and operational scenarios.
- Maintain accurate documentation of network configurations, changes, and incident resolutions to support auditability and knowledge sharing.
- Evaluate emerging networking technologies and contribute to recommendations for adoption or integration.
- Any other duties required to meet the needs of the programme.
- Proven experience designing and delivering mobile and RF network solutions in complex, multi-site, or austere environments.
- Deep technical expertise in 4G/LTE, 5G, and RF communications technologies.
- Strong background in military or mission-critical communications systems, including operational deployment and sustainment.
- Experience implementing and supporting secure, high-availability network architectures across physical, hybrid, and cloud-integrated environments.
- Strong understanding of network security principles, including segmentation, encryption, firewalling, and secure remote access.
- Experience in network performance monitoring, traffic analysis, and fault diagnosis.
- Experience supporting deployable or tactical networking solutions, including mobile edge computing, mesh networking, or tactical cloud environments.
- Ability to collaborate effectively across engineering, operations, and training teams, providing technical leadership where required.
- Excellent analytical problem-solving capability and clear stakeholder communication.
