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Senior VoIP Software Developer

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Henderson Scott 84000.00 British Pound . GBP Per annum

2021-12-03 11:00:00

Job location Barkingside, Greater London, United Kingdom

Job type: fulltime

Job industry: I.T. & Communications

Job Contact: Lin Zhang

Job description

Job title: Senior VoIP Software Developer

Salary: £70K--£84K

My client currently is looking for an enthusiastic VoIP Software Developer to join our growing R&D team, where you will be designing and developing new and existing voice services to be delivered via an award-winning global voice platform. As a seasoned C/C++/Java/Go developer with knowledge/understanding of SIP and RTP, you will be applying your experience to create and maintain highly-reliable and scalable VoIP solutions using open-source SIP and PBX applications such as FreeSWITCH and OpenSIPS. Applicants who can demonstrate their ability to extend server-based applications via third-party APIs, have experience with Real Time media streaming and have built applications on cloud infrastructure will be highly suited to this role.

Responsibility:

  • Develop and deploy new voice applications and the maintenance & diagnosing of any issues within existing applications.
  • Translate requirements and designs into high-quality, secure code
  • Implement and maintain automated unit and functional tests where appropriate
  • Create utilities to aid testing & diagnosing issues
  • Debug internally and externally-reported issues, and take both individual and collective responsibility to maintain optimal performance of applications at all times
  • Work within the agile team and participate fully in all team meetings, sharing knowledge with the team and wider department
  • Participate in peer code reviews, both as reviewer and reviewee
  • Keep abreast of the latest security vulnerabilities, and develop with security in mind
  • Demonstrate a willingness and motivation to learn and undertake self-initiated training

My client is looking for someone with the following skills:

  • C/C++/Java/Go Lang or similar
  • Knowledge of key voice protocols including SIP, RTP

We would love it if you also had

  • Experience with extending FreeSWITCH modules, writing dial plans, and building Lua or Javascript scripts, or similar using Asterisk
  • Configuration and customisation of open source SIP Proxies such as OpenSIPS, OpenSER, or Kamaillo
  • Experience with migrating and deploying applications into AWS
  • Knowledge of common media file formats such as WAV, MP3, PCM
  • Experience with telecoms protocols such as ISDN and SS7

Please contact Lin Zhang at Henderson Scott to apply

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