System Engineer VoIP

What we do:

VIER is a global contact center technology provider. VIER develops and runs its own technology in several data centers. You will be part of the Real-time Media Processing Team which is responsible for the telephony connections between carriers, applications and call-center agents.

Your mission

• You are responsible for the support of the VoIP systems as well as the associated infrastructure
• Since you have sovereignty over the VoIP systems, you are also responsible for performing system upgrades and configurations.
• You have a lot of freedom to design, plan, and implement new VoIP system components for internal and external projects.
• You manage and implement change requests and are a specialist for special topics in the communication area.
• You show a high-sense of responsibility and foresight to keep systems running 24/7
• You are prepared to work occasionally also in the evening hours to roll out new features

Your skills

• You have several years experience in the day-to-day operation of telecom systems
• You have worked extensively with opensource VoIP software such as Kamailio / OpenSIPS, FreeSWITCH
• You can administer Linux systems such as RockyLinux and Debian
• You know SIP, RTP, RTCP, TLS, WebRTC protocols and can debug problems with Wireshark
• You have also worked with MySQL, Git
• You are communicative and like to work with team colleagues
• You speak English on an advanced level

Further beneficial skills

• Experience with Ansible or Puppet for automation and configuration management.
• CheckMK, Homer, Hepic, and sngrep, Redis, CGRates, CDR Tools, Python
• Own VoIP software projects