Bachelor's degree in software engineering or equivalent combination of education and experience Experience writing software with the SIP protocol: Understand how to Manipulate SIP Dialogs Experience working with or implementing SIP Proxies and B2BUAs Understanding of VoIP protocols, SIP signaling with emphasis on RTP and SDP, network QOS, IP routing, Ethernet switching (including 802.11q, 802.11p, 802.3af), and packet tagging mechanisms. Understanding of feature delivery in hosted VoIP environment (hosted services, SIP trunking, PRI trunking via IAD, VoIP CPE, enhanced business features, etc.) Experience with hosted and cloud based voice applications and services preferred Experience with network monitoring, management and troubleshooting with various tools such as Packet Sniffer utilities or Wireshark strongly recommended Experience in designing, installing and maintaining secure IP networks preferred Experience in application architecture and design. Experience building database-driven web services with REST-based APIs Java SE 8+ (11 preferred) Working experience with HTML, CSS, XML, JSON, Javascript, JQuery, Perl and/or PHP a plus Ability and desire to learn and teach. Ability to interface well with customers (internal and external) Must enjoy the challenge of technical concepts and possess the ability to communicate those concepts at varying levels. Experience mentoring and leading technical discussions Experience in or knowledge of Agile methodologies (Scrum, Kanban) and continuous Integration/continuous delivery systems. VOIP, Freeswitch, RTP, Wireshark, Sngrep, OCOM, VoipMon Guava, Guice, Junit 5 AWS / Cloud based SaaS experience DOCSIS and GR303 protocols.