VoIP/SIP Engineer in A1Telecom

We are looking for a system administrator, VoIP / SIP engineer. Our ideal candidate:  Knows the TCP / IP protocol stack, the basic principles of data transmission networks;  Understands the SIP, H323, RADIUS protocols  Knows the basic principles of VOIP, VOIP terminal equipment;  Has practical skills in working with various PBX and SoftSwitch, in particular, Asterisk, MVTS, FreeSwitch;  Experienced in troubleshooting complex requests (one-way audibility, loss of RTP, jitter, transcoding, DTMF)  Experienced in scripting in one of the languages (PHP, Python);  Experienced in database administration (Mysql, PostgreSQL) (replication, backup, ability to build SQL queries).  Experienced in monitoring systems and billing systems; What will you do:  Participate in the connection of basic services and additional services to new and existing clients of the company;  Advise clients on setting up services and VOIP equipment;  Process technical applications related to the performance of the provided VOIP services and services;  Participate in the development of infrastructure, in the development of new VOIP services and services for corporate clients.  Administer Linux systems (routing voice and Internet traffic, configuring a firewall, building VPN tunnels).  Maintain system documentation and operational reporting. What we offer: • Work in a young company with its own product; • Opportunity to develop together with our business; • Type of employment: full time, telework; • Work schedule: from 9:00 to 18:00 with a five-day working week; • Internship 1 month, trial period up to 2 months (the period of the trial period and the payment for this period are discussed individually and depends on your experience and knowledge); • Award on a quarterly basis and based on the results of work for the year. We are ready to support, teach and train new employees.