Quality Assurance Engineer - Networking & Embedded

Quality Assurance Engineer - Networking & Embedded Systems £45,000 - £70,000 DOE + Benefits Fully Remote (UK) About the Company Join a growing technology business developing innovative networking and communications solutions. Backed by an experienced leadership team and ambitious growth plans, the company combines software, networking and infrastructure expertise to build secure, reliable technology used in demanding environments. The Role We're looking for a Quality Assurance Engineer to validate releases, identify issues before production, and ensure solutions perform reliably across software, networking, cloud, and embedded platforms. You'll work closely with engineering teams, investigating defects, testing real-world scenarios, and helping drive product quality across the entire technology stack. Ideal Candidate Essential Skills * Experience testing networking, embedded, or distributed systems * Linux troubleshooting and diagnostic experience * Strong understanding of TCP/IP, DNS, DHCP, NAT, VPNs and routing * Knowledge of LTE, 5G, SIMs, APNs and cellular connectivity * Strong defect reproduction and root-cause analysis skills * Excellent written documentation skills Technical Knowledge * REST API testing, JWT, authentication flows and mTLS * TLS, certificates, PKI and X.509 * Server-Sent Events (SSE) * Security testing and RBAC validation * Packet capture and protocol analysis * Mock servers and test f...