The company Infinity Telecom s.r.o. with headquarters in Prague has been operating on the European market since 2015. We specialise in telecommunications, VoIP, SMS services, hosting, colocation and other related areas. We are facing ambitious tasks:constantly improving our services to make them better in every aspect for our clients. At the same time we are constantly working on new services to provide top of the class all-in-one solution.

Our products are created by a talented team of 50 people. If you are ready to apply your professional experience on the international market, looking to get rid of excessive bureaucracy and great place to work, that can offer to you right balance between work and leisure, Infinity Telecom s.r.o. could be an excellent continuation of your career path. We are looking for those who are ready to join us for joint long-term cooperation and the joy of our joint achievements.

Теам: Product manager, Tech lead, 2 developers. Technology Stack: Go, MySQL, Kafka, VoIP software: Kamailio, RTPengine. Microservices based on HTTP JSON API.

We are looking for who:

• will be maintaining and improving the existing VoIP platform
• will be implementing new features and services for the VoIP and WebRTC products
• will be helping devops engineers to support existing infrastructure of the VoIP related services
• interested to be involved into development of the services around VoIP core like billing, routing, rating, and level 5 serivces like voicemails, queues, IVRs We expect from the candidate:
• excelent knowledge of the VoIP and WebRTC stack related protocols: SIP, SDP, RTP/RTCP, ICE/STUN/TURN
• hands-on experience with Opensource platforms like: Kamailio, OpenSIPs, RTPEnigne, Asterisk, Freeswitch, sipp, pjsip frameworks
• knowledge in the Linux operational systems domain
• hangs-on experience with Kamailio KEMI framework,
• hands-on experience with relational (like MySQL) and non-relational (like Redis) databases
• coding skills at least on one of the following languages: Lua, JavaScript, Python, Go, C, C++, Rust
• hands-on experinece of CI/CD processes and deployment tools like Ansible
• Strong "get things done" attitude

Requirements:

• Experience working in Linux environment (you are comfortable with cli and able to connect to the service via ssh, know how to navigate over the directories and manipulaete files)
• Understanding microservices, MQ systems (Kafka, rabbitMq, Pulsar etc), SQL
• Have experience in realtime system domains ( preferably VoIP )