Salary: £78,000 - 95,940 per year
Requirements:
- Deep knowledge of SIP, RTP, and SDP
- Python and API automation experience
- Experience with Wireshark, tcpdump, and PCAP analysis
- Experience with VoIP tools such as SIPp, Spectra, WinSIP, or StarTrinity
- Experience with Linux (RHEL/CentOS) and basic server administration
- Experience with Perimeta SBC, Metaswitch Rhino, or Dialogic Media Server is nice to have
- SSCA certification or knowledge of IN protocols (INAP/MAP) is nice to have
Responsibilities:
- Build and maintain automated test frameworks for signaling and media handling
- Simulate concurrent call load and network degradation
- Diagnose audio drops and call failures using packet captures
- Integrate test scripts into CI/CD pipelines such as Jenkins and GitLab
Technologies:
- API
- CI/CD
- Jenkins
- Linux
- Network
- Python
- RHEL
- GitLab
More:
We are hiring an Automation Tester with VoIP and SIP expertise for a 6-month contract with a possible extension. The role is based in Ipswich, UK, with a hybrid working model of 3 days per week in the office. We are looking for someone who can help ensure the reliability and quality of our real-time voice and video communication systems. This is an urgent vacancy with immediate interview shortlisting.
last updated 38 week of 2026
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Automation Tester with VoIP, SIP in Ipswich employer: Randstad Digital
Join a well-established firm in London as a Senior Linux Engineer, where you will be part of a dynamic team dedicated to innovation and automation. With a strong focus on employee growth, the company offers opportunities for skill enhancement through hands-on projects and collaboration with technical experts. Enjoy a supportive work culture that values creativity and efficiency, all while working in a vibrant city known for its tech advancements.
