Salary: £60,000 - 65,000 per year Requirements: Software Developer or similar background Understanding of SIP / VoIP and real-time systems Experience with REST APIs, Docker, and Linux Commutable to Guildford Responsibilities: Developing and improving a SIP / VoIP communications platform Integrating external systems including AI-based voice services Troubleshooting SIP/RTP issues using tools such as Wireshark Ensuring secure software design and compliance standards Technologies: AI Docker Linux REST Backend Python Web More: We are an award-winning technology business with over 40 years of industry experience, known for our innovation, in-house development, and long-term customer partnerships. We offer excellent training, exposure to cutting-edge technologies, and clear opportunities for progression within a small, highly skilled development team. Our office is located in Guildford, where we provide a hybrid working environment. last updated 5 week of 2026