Test Automation Engineer (VoIP)

Test Automation Engineer (VoIP) Contract - Paying up to £367 Per Day, Inside IR35, Based in Ipswich, Hybrid Working (50% on site), Contract until March 2027, To Start ASAP

Your new role

We're seeking an experienced VoIP Test Automation Engineer to join a team delivering critical voice and communications platforms. You'll be responsible for ensuring the quality, reliability and performance of VoIP services through automated testing, protocol validation and network analysis.

Key Responsibilities:

• Design and maintain automated test frameworks for VoIP, signalling and media services
• Develop scripts to simulate call loads, stress conditions and network degradation
• Integrate automated testing into CI/CD pipelines
• Create detailed functional, performance, security and regression test cases
• Analyse SIP and RTP traffic using tools such as Wireshark and tcpdump
• Monitor voice quality metrics including latency, jitter, packet loss and MOS scores
• Produce comprehensive test reports and manage defects through Jira
• Work closely with Development, DevOps and Network Engineering teams to resolve issues
  
  

What you'll need to succeed

• VoIP testing experience using SIPp, Spectra, WinSIP or StarTrinity
• Test automation with Python and Robot Framework
• API and performance testing using JMeter, k6, Locust, Taurus/BlazeMeter or Newman
• GUI automation experience with TestCafe
• CI/CD testing integration experience
• Knowledge of SIP, RTP and telecoms environments
• Experience with Linux (RHEL/CentOS/OEL) and Windows administration
• Exposure to telecoms platforms such as Metaswitch Rhino, Dialogic Media Server or Perimeta SBC
  
  Desirable Skills:
  
  
• SSCA SIP School certification
• Knowledge of INAP, CAP and MAP protocols
• Metaswitch Scenario Simulator experience
• Telecoms security, system hardening and ITIL knowledge

What you need to do now

If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.

If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career.

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