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Network Test Engineer - SD-WAN & Network Infrastructure
Job in
Greater London, London, Greater London, W1B, England, UK
Listed on 2026-09-07
Listing for:
Syncarp
Full Time
position Listed on 2026-09-07
Job specializations:
-
IT/Tech
Network Engineer, IT QA Tester / Automation
Job Description & How to Apply Below
We are hiring "Senior Network Test Engineer - SD-WAN & Network Infrastructure" for a global service provider based out of:
London Speechmark / Newbury / Birmingham Small Heath / Manchester / Glasgow -
Telecom/network infrastructure testing experience mandatory
Contract:
6-12 Months Fixed-Term Contract
Clearance: SC Cleared / Eligible for SC Clearance
Experience:
5+ Years
The successful candidate must have practical experience testing and validating SD-WAN, LAN/WAN, Wi-Fi, routing and switching, network protocols, connectivity, data centre infrastructure and network performance.
This is not a generic software QA or automation testing role. Candidates must demonstrate hands-on experience with network infrastructure testing and troubleshooting.
Key Responsibilities- Design, develop, execute and manage end-to-end testing for telecom and network infrastructure projects.
- Create and review test cases, test scripts, test plans and execution evidence.
- Perform SIT, Functional, Non-Functional, DR and OAT testing.
- Execute network and connectivity testing across SD-WAN, LAN/WAN, Wi-Fi and Data Centre environments.
- Validate routers, switches, firewalls and network infrastructure components.
- Perform testing and troubleshooting of TCP/IP, DHCP, DNS and NAT.
- Validate routing and switching technologies, including BGP and OSPF.
- Perform SD-WAN validation, connectivity testing and troubleshooting.
- Conduct network performance testing, including throughput, latency, jitter and packet-loss validation.
- Use network performance and traffic-generation tools such as iPerf, Spirent, IxNetwork/Ixia or similar tools.
- Perform RFC 2544 testing and network performance benchmarking.
- Test SIP/VoIP and Unified Communications connectivity where required.
- Support Data Centre, Cloud and network infrastructure testing.
- Manage the full defect lifecycle, including defect logging, root cause analysis, retesting and closure.
- Work from HLD, LLD, Test Plans and technical requirements.
- Maintain requirements traceability, ALM and test reporting.
- Prepare and maintain test environments and network test labs.
- Mentor junior testers and collaborate with network architects, engineers and cross-functional stakeholders.
- Minimum 5 years of hands-on telecom/network infrastructure testing experience.
- Strong experience testing enterprise or telecom network infrastructure.
- Hands-on experience with SD-WAN, routing, switching and network connectivity testing.
- Experience testing network protocols including TCP/IP, DHCP, DNS and NAT.
- Experience with routing protocols such as BGP and OSPF.
- Experience using network testing/performance tools such as iPerf, Spirent, IxNetwork/Ixia or similar.
- Experience performing network performance testing and RFC 2544 testing.
- Ability to create and execute test cases from HLD, LLD and Test Plans.
- Strong experience in defect management, root cause analysis and retesting.
- Experience with ALM or equivalent test management tools.
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