Investigo

Telecoms Engineer

Investigo

full-time

Posted on:

Location Type: Hybrid

Location: Sandbach • 🇬🇧 United Kingdom

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Job Level

Mid-LevelSenior

Tech Stack

FirewallsLinuxPHPPythonSQLVoIP

About the role

  • Configure, maintain and optimise Asterisk-based systems.
  • Manage and troubleshoot SIP registrations, call routing and VoIP infrastructure.
  • Monitor and enhance performance, resilience and security of telecoms services.
  • Develop and support API integrations between telecoms platforms and backend systems.
  • Implement call flow logic, dialplans and routing rules for operational efficiency.
  • Investigate and resolve telecoms-related incidents and performance issues.
  • Contribute to documentation, process improvement and technical best practice.
  • Collaborate with cross-functional teams (Platform, Development, Security) to deliver new capabilities.

Requirements

  • Proven experience with Asterisk or similar PBX/softswitch platforms.
  • Strong understanding of SIP protocols, VoIP and call routing.
  • Experience with Linux environments (Debian/Ubuntu/CentOS).
  • Networking knowledge (UDP/TCP, NAT, firewalls).
  • Proficiency with SQL databases for call detail records (CDR) and reporting.
  • Experience supporting or developing telecoms-related API integrations.
  • Ability to diagnose and resolve performance or interoperability issues.
  • Desirable: Experience with SBC configuration/management.
  • Familiarity with Kamailio, FreeSWITCH or OpenSIPS.
  • Knowledge of WebRTC, TLS/SRTP or other encryption protocols.
  • Basic scripting in Python, Bash or PHP for automation.
  • Exposure to fraud detection or call analytics tools.
Benefits
  • Flexible Working: We offer a hybrid model.
  • Private Medical (Self/ Family)
  • Inclusive Culture: Enjoy an inclusive culture and environment.
  • Flexible Benefits: A flexible benefits programme to suit your needs (discounts, insurance etc).
  • Holiday: Generous holiday allowance.
  • Learning: Access to continuous learning and development opportunities.
  • Bonus Potential: Bonus potential based on performance and business-related factors.
  • Pension: Pension scheme contributions with Government Top-Up
  • EV Car Scheme
  • More Benefits: Explore additional benefits on our career site.

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard skills
AsteriskSIP protocolsVoIPcall routingLinuxSQL databasesAPI integrationsSBC configurationWebRTCscripting
Soft skills
troubleshootingperformance optimizationcollaborationprocess improvementdocumentation