VOIP/SIP Network Engineer

Salt Digital Recruitment; England; Hybrid; GBP 80,000 - 100,000; Part time

Job summary

A leading recruitment firm is seeking a skilled VOIP network engineer to join a dynamic team in transforming enterprise telephony. The role merges traditional voice engineering and modern DevOps practices, focusing on building and supporting telephony solutions with high availability.

Qualifications

• Strong knowledge of SIP and SBC technologies.
• Hands-on experience with SBCs and backend management tools.
• Proficiency in Python, JavaScript, HTML/CSS, or Java/Kotlin.

Responsibilities

• Build and support highly available telephony solutions.
• Develop scripts, tools, and APIs to improve SIP routing.
• Collaborate with carriers to support SIP infrastructure.

Skills

Session Initiation Protocol (SIP)

SBC technologies

Python

JavaScript

HTML/CSS

Java/Kotlin

Networking

Documentation writing

Collaboration

Proactive approach

Job description

We’re looking for a skilled VOIP network engineer with experience in SIP and session border controllers (SBC) ,to join a dynamic team driving transformation in enterprise telephony.

This is a hybrid role combining traditional voice engineering with a modern DevOps mindset.

Key Responsibilities:

• Build and support highly available telephony solutions
• Develop scripts, tools, and APIs to improve SIP routing, call flows, and automation
• Integrate telephony with monitoring platforms like Grafana and ThousandEyes
• Collaborate with carriers to support SIP infrastructure and hybrid voice networks
• Contribute to hybrid cloud telephony solutions across UCaaS and CCaaS platforms
• Troubleshoot and analyse root causes of service disruptions, with a security-first mindset

Essential Skills & Experience:

• Strong knowledge of Session Initiation Protocol (SIP) and SBC technologies
• Hands-on experience with SBCs, ARM/ECB, and backend management tools
• Proficiency in Python, JavaScript, HTML/CSS, or Java/Kotlin
• Working knowledge of networking (routers, switches, firewalls, SASE) – Network+ or CCNA a plus
• Experience in writing detailed documentation and collaborating across technical teams
• Self-starter with a proactive, solutions-focused approach

*Rates depend on experience and client requirements

Job Information

Job Reference: DBSIP

Salary: £280 - £290 per day + Inside IR35 /Hybrid 3 office days PW

Salary per: day

Job Duration: 1 year Rolling

Job Start Date: ASAP

Job Industries: Telecoms

Job Locations: East Sussex

Job Types: Contract

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