Senior Software Engineer

SS8 is looking for a Senior Software Engineer with expertise in voice media controllers (GVMC), Dialogic XMS, and deep knowledge of SIP/RTP protocols. The ideal candidate will have experience in C++ and Java development, packet analysis, debugging SIP/RTP issues, and designing communication solutions. Key responsibilities include developing media processing solutions using GVMC and Dialogic XMS, troubleshooting SIP and RTP call flows, debugging packet captures, designing real-time media streaming solutions, developing and maintaining C++ and Java-based software, integrating and testing SIP-based call sessions, and optimizing transcoding for various video streams.

<div><div>Company Overview:About SS8 Networks: As a leader in Lawful and Location Intelligence, <a style="color: rgb(233,113,50);" href="http://www.ss8.com/">SS8</a> helps make societies safer. Our commitment is to extract, analyze, and visualize the critical intelligence that gives law enforcement, intelligence agencies, and emergency services the real-time insights that help save lives. Our high-performance, flexible, and future-proof solutions also enable mobile network operators to achieve regulatory compliance with minimum disruption, time, and cost. SS8 is trusted by the largest government agencies, communications providers, and systems integrators globally. Position: Senior Software Engineer  Location: Toronto, Canada or Milpitas, California (both Hybrid) - No Work Visa Sponsorship Job Description: SS8 is seeking a highly skilled Senior Engineer with expertise in voice media controllers (eg. GVMC), Dialogic XMS, and deep knowledge of SIP/RTP protocols. The ideal candidate will have a strong background in C++ and Java development, with experience in packet analysis (Wireshark/PCAPs), debugging SIP/RTP issues, and designing scalable communication solutions. Key Responsibilities:<ul style="margin: 0.0pt;padding-left: 0.0pt;"><li style="font-family: serif;font-size: 11.0pt;margin: 0.0pt 0.0pt 0.0pt 26.85pt;padding-left: 9.15pt;text-align: justify;text-indent: 0.0pt;">Develop and enhance media processing solutions using GVMC and Dialogic XMS using MSML APIs.</li><li style="font-family: serif;font-size: 11.0pt;margin: 0.0pt 0.0pt 0.0pt 26.85pt;padding-left: 9.15pt;text-align: justify;text-indent: 0.0pt;">Implement, troubleshoot, and optimize SIP and RTP call flows for VoIP and video communication.</li><li style="font-family: serif;font-size: 11.0pt;margin: 0.0pt 0.0pt 0.0pt 26.85pt;padding-left: 9.15pt;text-align: justify;text-indent: 0.0pt;">Analyze and debug packet captures (PCAPs) using Wireshark, tcpdump, and other network debugging tools.</li><li style="font-family: serif;font-size: 11.0pt;margin: 0.0pt 0.0pt 0.0pt 26.85pt;padding-left: 9.15pt;text-align: justify;text-indent: 0.0pt;">Design and optimize real-time media streaming solutions for VoLTE, ViLTE, and multi-party video conferencing.</li><li style="font-family: serif;font-size: 11.0pt;margin: 0.0pt 0.0pt 0.0pt 26.85pt;padding-left: 9.15pt;text-align: justify;text-indent: 0.0pt;">Develop and maintain C++ and Java-based software for VoIP and media processing applications.</li><li style="font-family: serif;font-size: 11.0pt;margin: 0.0pt 0.0pt 0.0pt 26.85pt;padding-left: 9.15pt;text-align: justify;text-indent: 0.0pt;">Integrate, test, and validate SIP-based call sessions, ensuring protocol compliance with ATIS 0700005, T1.678 V2, ETSI 102-232 Part 5 &amp; 7.</li><li style="font-family: serif;font-size: 11.0pt;margin: 0.0pt 0.0pt 0.0pt 26.85pt;padding-left: 9.15pt;text-align: justify;text-indent: 0.0pt;">Collaborate with QA and DevOps teams to automate testing for SIP, RTP, and media services.</li><li style="font-family: serif;font-size: 11.0pt;margin: 0.0pt 0.0pt 0.0pt 26.85pt;padding-left: 9.15pt;text-align: justify;text-indent: 0.0pt;">Optimize transcoding and media handling for H.264, H.263, VP8, and MPEG video streams.</li><li style="font-family: serif;font-size: 11.0pt;margin: 0.0pt 0.0pt 0.0pt 26.85pt;padding-left: 9.15pt;text-align: justify;text-indent: 0.0pt;">Contribute to architectural design decisions, ensuring system scalability and high availability.</li><li style="font-family: serif;font-size: 11.0pt;margin: 0.0pt 0.0pt 0.0pt 26.85pt;padding-left: 9.15pt;text-align: justify;text-indent: 0.0pt;">Work with Kubernetes-based deployments for GVMC/Dialogic XMS in cloud environments (GCP, AWS, Azure).</li></ul>&nbsp;Required Skills:Technical Expertise<ul style="margin: 0.0pt;padding-left: 0.0pt;"><li style="font-family: serif;font-size: 11.0pt;margin: 0.0pt 0.0pt 0.0pt 26.85pt;padding-left: 9.15pt;text-align: justify;text-indent: 0.0pt;">Expert knowledge of SIP, RTP, and VoIP protocols (Call Setup, Media Negotiation, SDP, ICE, STUN, TURN).</li><li style="font-family: serif;font-size: 11.0pt;margin: 0.0pt 0.0pt 0.0pt 26.85pt;padding-left: 9.15pt;text-align: justify;text-indent: 0.0pt;">Deep understanding of media processing frameworks such as GVMC, Dialogic XMS, FreeSWITCH, and Asterisk.</li><li style="font-family: serif;font-size: 11.0pt;margin: 0.0pt 0.0pt 0.0pt 26.85pt;padding-left: 9.15pt;text-align: justify;text-indent: 0.0pt;">Strong experience in C++ and Java development for real-time communication applications.</li><li style="font-family: serif;font-size: 11.0pt;margin: 0.0pt 0.0pt 0.0pt 26.85pt;padding-left: 9.15pt;text-align: justify;text-indent: 0.0pt;">Hands-on experience analyzing SIP, RTP, and T.38 FAX PCAPs using Wireshark/tcpdump.</li><li style="font-family: serif;font-size: 11.0pt;margin: 0.0pt 0.0pt 0.0pt 26.85pt;padding-left: 9.15pt;text-align: justify;text-indent: 0.0pt;">Experience with SIP signaling flows, error handling (503, 408, 487, etc.), and debugging call failures.</li><li style="font-family: serif;font-size: 11.0pt;margin: 0.0pt 0.0pt 0.0pt 26.85pt;padding-left: 9.15pt;text-align: justify;text-indent: 0.0pt;">Proficiency in media codecs (G.711, G.722, AMR-WB, Opus, H.264, VP8, MPEG).</li><li style="font-family: serif;font-size: 11.0pt;margin: 0.0pt 0.0pt 0.0pt 26.85pt;padding-left: 9.15pt;text-align: justify;text-indent: 0.0pt;">Experience in deploying GVMC/Dialogic XMS in Kubernetes (K8s) clusters.</li><li style="font-family: serif;font-size: 11.0pt;margin: 0.0pt 0.0pt 0.0pt 26.85pt;padding-left: 9.15pt;text-align: justify;text-indent: 0.0pt;">Knowledge of distributed logging and monitoring tools (ELK Stack, Prometheus, Grafana).</li></ul>&nbsp;Preferred Skills<ul style="margin: 0.0pt;padding-left: 0.0pt;"><li style="font-family: serif;font-size: 11.0pt;margin: 0.0pt 0.0pt 0.0pt 26.85pt;padding-left: 9.15pt;text-align: justify;text-indent: 0.0pt;">Experience with WebRTC, IMS, and VoLTE/ViLTE protocols.</li><li style="font-family: serif;font-size: 11.0pt;margin: 0.0pt 0.0pt 0.0pt 26.85pt;padding-left: 9.15pt;text-align: justify;text-indent: 0.0pt;">Knowledge of network security (TLS, DTLS, SRTP) for VoIP.</li><li style="font-family: serif;font-size: 11.0pt;margin: 0.0pt 0.0pt 0.0pt 26.85pt;padding-left: 9.15pt;text-align: justify;text-indent: 0.0pt;">Experience with cloud-native architectures (GCP, AWS, Azure).</li><li style="font-family: serif;font-size: 11.0pt;margin: 0.0pt 0.0pt 0.0pt 26.85pt;padding-left: 9.15pt;text-align: justify;text-indent: 0.0pt;">Familiarity with CI/CD pipelines (Jenkins, GitHub Actions) for VoIP applications.</li><li style="font-family: serif;font-size: 11.0pt;margin: 0.0pt 0.0pt 0.0pt 26.85pt;padding-left: 9.15pt;text-align: justify;text-indent: 0.0pt;">Hands-on experience in high-performance media gateway solutions.</li></ul>&nbsp;Education and experience:<ul style="margin: 0.0pt;padding-left: 0.0pt;"><li style="font-family: serif;font-size: 11.0pt;margin: 0.0pt 0.0pt 0.0pt 26.85pt;padding-left: 9.15pt;text-align: justify;text-indent: 0.0pt;">Bachelor’s or master’s degree in computer science, Electrical Engineering, or related field.</li><li style="font-family: serif;font-size: 11.0pt;margin: 0.0pt 0.0pt 0.0pt 26.85pt;padding-left: 9.15pt;text-align: justify;text-indent: 0.0pt;">8+ years of experience in VoIP, SIP, RTP, and media processing solutions.</li><li style="font-family: serif;font-size: 11.0pt;margin: 0.0pt 0.0pt 0.0pt 26.85pt;padding-left: 9.15pt;text-align: justify;text-indent: 0.0pt;">Prior experience working with GVMC, Dialogic XMS, or similar media servers.</li></ul>&nbsp;Annual Base Pay Range (USD): $130,000-$160,000&nbsp;The successful candidate’s starting base pay will be determined based on job-related skills, experience, qualifications, work location, and market conditions. The expected annual pay range for this role may be modified based on market conditions.&nbsp;SS8 Networks Inc. is an Affirmative Action and Equal Opportunity Employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, or other legally protected basis.&nbsp;&nbsp;</div></div>

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