Software Developer (SIP / Voip)

Ernest Gordon Recruitment Limited; Guildford; Hybrid; GBP 60,000 - 65,000; Full time

Job summary

A leading technology recruitment firm is seeking a Software Developer in Guildford to work on a high-tech SIP/VoIP platform. This role offers competitive pay, training, and opportunities for progression within a skilled team. Candidates should have experience with SIP/VoIP, real-time systems, and secure software design. Responsibilities include platform enhancement, system integrations, and troubleshooting. The position supports hybrid working, providing a dynamic work environment focused on innovation.

Benefits

Progression opportunities

Training and development

Company benefits

Qualifications

• Experience in software development, preferably with a focus on SIP/VoIP.
• Proficiency in developing secure software and troubleshooting complex issues.
• Familiarity with REST APIs and integration of external systems.

Responsibilities

• Develop and enhance a large-scale SIP/VoIP platform.
• Integrate AI-driven voice and transcription services.
• Troubleshoot SIP/RTP issues effectively.

Skills

SIP / VoIP knowledge

Real-time communications

Troubleshooting skills

Secure software design

Tools

REST APIs

Docker

Linux

Job description

Software Developer ( SIP / VoIP)

£60,000 - £65,000 + Progression + Training + Company Benefits + Hybrid Working

Guildford

Are you a Software Developer with a background VoIP / SIP looking to work on a highly technical, enterprise-level communications platform where you'll tackle real‑time systems, complex integrations, and challenging problem‑solving rather than standard web applications?

On offer is the chance to join an award‑winning technology business with over 40 years of industry experience, known for innovation, in‑house development and long‑term customer partnerships. The company provides excellent training, exposure to cutting‑edge technologies, and clear opportunities for progression within a small, highly skilled development team.

In this role you will design, develop and enhance a large‑scale SIP and VoIP platform along with its associated REST APIs and value‑add services. You'll work closely with internal teams and customers to build integrations with external systems, including AI‑driven voice, transcription and sentiment analysis services. You will also play a key role in troubleshooting complex SIP/RTP issues and ensuring secure, compliant software design throughout the platform.

This role would suit a Software Developer with a background in VoIP / SIP, real‑time communications, and secure software design who wants to work on technically demanding projects with real‑world impact.

The Role:

• 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

The Person:

• Software Developer or similar
• Understanding of SIP / VoIP and real‑time systems
• Experience with REST APIs, Docker and Linux
• Commutable to Guildford