> Markdown version of [/jobs/ext/2235170-virtual-routing-systems-engineer](https://www.wearedevelopers.com/jobs/ext/2235170-virtual-routing-systems-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # VIRTUAL ROUTING SYSTEMS ENGINEER - **Company:** Groupe SII - **Location:** Inconnu, France - **Contract:** Permanent contract - **Skills:** Agile Methodology, Systems Engineering, Automation of Tests, Border Gateway Protocol, Network Analysis, Configuration Management, Software Documentation, Cyber Security, Linux, Internet Protocol, Multi-protocol Systems, Multicasting, Network Functions Virtualization, Routing, Packet Analyzer, Network Administration, Network Protocols, Open Shortest Path First (OSPF), Systems Development Life Cycle, Regression Testing, Requirements Management, Secure Coding, Software Engineering, Product Software Implementation Methods, Verification and Validation (Software), Software Testing Automation Framework, Systems Integration, TCP/IP, Tcpdump, Wireshark, Virtualization Technology, Diagnostic Tools, Computer Networking Systems, Performance Testing, Test Scripts, System-level Testing, SC Clearance, Kubernetes, SDN Network, Devsecops, Docker - **Published:** August 26, 2026 - **Apply:** https://sii-group.com/en-FR/job-application/22814?source= ## About the Role 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). ## Description * 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. * ## Related Videos - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [An Applied Introduction to eBPF with Go](https://www.wearedevelopers.com/videos/1075-an-applied-introduction-to-ebpf-with-go) - [Unlocking the potential of Digital & IT at Vodafone](https://www.wearedevelopers.com/videos/602-unlocking-the-potential-of-digital-it-at-vodafone) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [Turning Container security up to 11 with Capabilities](https://www.wearedevelopers.com/videos/718-turning-container-security-up-to-11-with-capabilities) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers)