Voip Engineer

Contego - Global Talent Solutions; Manchester; On-site; GBP 45,000 - 65,000; Full time

Job summary

A leading company in the telecommunications sector is seeking a skilled VoIP Engineer to design, implement, and support telephony solutions in a vibrant startup environment. The ideal candidate will have a strong technical background in VoIP systems, particularly Asterisk, and a grasp of networking protocols. This role offers an opportunity to enhance service quality and contribute to significant projects in the telecommunication field, ensuring robust communication systems for clients and internal teams.

Qualifications

• Minimum 3 years experience with VoIP and Asterisk systems.
• Strong knowledge of Linux system administration.
• Proficient in scripting languages like Perl, PHP, Python, or Bash.

Responsibilities

• Develop and support VoIP systems including Asterisk PBX.
• Troubleshoot and resolve L3 support escalations.
• Monitor telephony traffic to optimize performance.

Skills

VoIP

Networking protocols

Analytical skills

Troubleshooting

Scripting

Education

Bachelor's degree in Telecommunications

Tools

Asterisk

Linux

MySQL

MongoDB

Job description

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Reports To: Head of Software Development?

Position Overview:

My client are an exciting start up, looking for a VoIP Engineer to play a critical role in the design, implementation, and support of telephony solutions across their infrastructure. This role requires deep technical expertise in VoIP systems, especially Asterisk-based platforms, and a working knowledge of networking protocols and Linux environments. The role will contribute to ongoing service development, support operations, and ensure the stability and scalability of communication systems used by clients and internal teams.

Key Responsibilities:

• Develop, operate, and support VoIP systems including SIP proxies (Kamailio/OpenSIPS), Asterisk PBX, and VoIP gateways.
• Design, build, test, and deploy telephony solutions including IP PBX, EPABX, and related infrastructure.
• Implement and enhance functionalities using Asterisk AGI, AMI, ARI interfaces.
• Collaborate on custom PBX deployments and integrations with third-party systems.

System Support and Troubleshooting:

• Handle L3 support escalations, perform advanced diagnostics, and resolve critical voice and networking issues.
• Monitor and analyse telephony traffic to identify anomalies, optimise performance, and reduce call quality issues.
• React quickly to alerts and incidents, working to rapidly restore service and conduct post-incident reviews.

Infrastructure and Development:

• Maintain and secure Linux-based systems (Ubuntu, CentOS, Debian) including package management and system hardening.
• Create and maintain scripts and tools using Perl, PHP, Python, and Bash to support automation, provisioning, and QA.
• Interface with call routing, rating, and billing platforms.

Monitoring and Optimization:

• Design and manage monitoring, alerting, and logging solutions for VoIP platforms.
• Collaborate with cross-functional teams to drive system enhancements and reduce operational overhead.

Experience:

• Minimum 3 years hands-on experience with Asterisk, VoIP, and SIP networks (5+ years preferred).
• Strong working knowledge of TCP/IP, NAT, PAT, and firewall technologies related to VoIP.
• Experience with Linux system administration and tools such as yum, apt, systemd, and Bash scripting.
• Familiarity with MySQL and MongoDB database systems.
• Knowledge of OpenSIPS, Kamailio, and other SIP proxies.
• Ability to write and maintain scripts in Perl, PHP, Python, and Bash.
• Understanding of call flow, SIP trace analysis, RTP streams, and protocol troubleshooting.
• Experience integrating with or supporting call routing, rating, and billing systems.
• Experience with AI/ML or open-source tools applied to VoIP or network analytics.
• Exposure to containerisation technologies (e.g., Docker) and microservice deployments.

Soft Skills:

• Strong analytical and troubleshooting skills with a focus on root cause resolution.
• Excellent verbal and written communication abilities.
• Positive team player with a collaborative mindset and the ability to work independently.
• Eagerness to learn and stay up to date with emerging voice and networking technologies.

Education:

• Bachelor's degree in Telecommunications, Computer Science, or a related technical field preferred.
• Relevant certifications in VoIP, networking, or Linux administration are a plus.

Salary: Competitive, based on experience and qualifications.

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Information Technology and Engineering

• Industries

  Telecommunications

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