VIRTUAL ROUTING SYSTEMS ENGINEER

• Develop, integrate and maintain virtual routing and network management software components.

• Support the design and implementation of software-defined networking (SDN) solutions and virtualised network functions (VNFs).

• Develop and execute verification and validation activities for routing, switching and network management functionality.

• Create automated test frameworks, test scripts and regression test suites.

• Conduct functional, integration, system and performance testing of virtual routing platforms.

• Analyse network behaviour and troubleshoot complex routing, protocol and interoperability issues.

• Support the development and optimisation of IP networking services within virtualised environments.

• Validate routing protocols and services including OSPF, BGP, RIP, ISIS, MPLS and multicast technologies where applicable.

• Develop and maintain software and test documentation including design descriptions, test specifications and test reports.

• Conduct protocol analysis using industry-standard tools and packet capture technologies.

• Support system integration activities with wider platform, communications and security teams.

• Participate in configuration management, software release and deployment activities.

• Contribute to secure-by-design principles and support cyber security assessments.

• Collaborate with customers and stakeholders to define acceptance criteria and support qualification activities.

• Support defect investigation, root cause analysis and corrective action implementation. *

The successful candidate will contribute to the design, development and verification of virtualised networking capabilities, supporting the delivery of next-generation routing and network management solutions. The role requires a strong software engineering background combined with hands-on experience of network protocols, virtualised environments and system-level testing.

Experience within the Defence, Aerospace, Communications or Secure Government sectors is highly desirable., * Proven experience in software development, integration or testing of networking systems.

• Strong understanding of IP networking fundamentals and routing technologies.

• Experience working with virtualised network environments and software-defined networking architectures.

• Experience creating and executing structured test procedures and automated test frameworks.

• Knowledge of networking protocols such as: TCP/IP, UDP, OSPF, BGP, VLA, MPLS, Multicast

• Experience using Linux-based development environments.

• Experience with network analysis and troubleshooting tools such as Wireshark, tcpdump or equivalent.

• Understanding of software development lifecycle (SDLC) and configuration management processes.

• Experience producing technical documentation, test specifications and verification evidence.

• Strong problem-solving and analytical skills.

DESIRABLE SKILLS

• Experience developing or testing military, defence or mission-critical communication systems.

• Knowledge of software-defined networking technologies and frameworks.

• Experience with Kubernetes, Docker or containerised networking solutions.

• Familiarity with network function virtualisation (NFV) architectures.

• Experience working within Agile or DevSecOps environments.

• Knowledge of secure communications systems and cyber security principles.

• Experience with automated CI/CD pipelines and test automation frameworks.

• Familiarity with requirements management and systems engineering processes.

• Understanding of MOD, NATO or defence communication standards.

• Experience working in classified or secure development environments.

• Current or previously held UK Security Clearance (SC or DV).

With five strategic offices in Belfast, Chester, Farnborough, London and Oxford, we work in partnership with our customers UK-wide to deliver high-impact engineering solutions.

SII UK is a trusted Aerospace and Defence engineering partner, supporting the delivery of complex, mission-critical programmes while helping to shape the future of innovation across next-generation systems and technologies.

Our teams contribute daily to creating a fulfilling, stimulating and career development focused work environment.

True to our human-centred values, we are committed to making SII UK a Great Place To Work®, having been certified 5 years running.

Joining SII UK means being part of our collective goals, guided by our mission “Let’s Tech Together,” and helping to build a digital future that is sustainable, at the heart of an environment that values learning & collaboration.