Senior Software Engineer

Company Overview:

About SS8 Networks: As a leader in Lawful and Location Intelligence, SS8 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:

• Develop and enhance media processing solutions using GVMC and Dialogic XMS using MSML APIs.
• Implement, troubleshoot, and optimize SIP and RTP call flows for VoIP and video communication.
• Analyze and debug packet captures (PCAPs) using Wireshark, tcpdump, and other network debugging tools.
• Design and optimize real-time media streaming solutions for VoLTE, ViLTE, and multi-party video conferencing.
• Develop and maintain C++ and Java-based software for VoIP and media processing applications.
• Integrate, test, and validate SIP-based call sessions, ensuring protocol compliance with ATIS 0700005, T1.678 V2, ETSI 102-232 Part 5 & 7.
• Collaborate with QA and DevOps teams to automate testing for SIP, RTP, and media services.
• Optimize transcoding and media handling for H.264, H.263, VP8, and MPEG video streams.
• Contribute to architectural design decisions, ensuring system scalability and high availability.
• Work with Kubernetes-based deployments for GVMC/Dialogic XMS in cloud environments (GCP, AWS, Azure).

Required Skills:

Technical Expertise

• Expert knowledge of SIP, RTP, and VoIP protocols (Call Setup, Media Negotiation, SDP, ICE, STUN, TURN).
• Deep understanding of media processing frameworks such as GVMC, Dialogic XMS, FreeSWITCH, and Asterisk.
• Strong experience in C++ and Java development for real-time communication applications.
• Hands-on experience analyzing SIP, RTP, and T.38 FAX PCAPs using Wireshark/tcpdump.
• Experience with SIP signaling flows, error handling (503, 408, 487, etc.), and debugging call failures.
• Proficiency in media codecs (G.711, G.722, AMR-WB, Opus, H.264, VP8, MPEG).
• Experience in deploying GVMC/Dialogic XMS in Kubernetes (K8s) clusters.
• Knowledge of distributed logging and monitoring tools (ELK Stack, Prometheus, Grafana).

Preferred Skills

• Experience with WebRTC, IMS, and VoLTE/ViLTE protocols.
• Knowledge of network security (TLS, DTLS, SRTP) for VoIP.
• Experience with cloud-native architectures (GCP, AWS, Azure).
• Familiarity with CI/CD pipelines (Jenkins, GitHub Actions) for VoIP applications.
• Hands-on experience in high-performance media gateway solutions.

Education and experience:

• Bachelor’s or master’s degree in computer science, Electrical Engineering, or related field.
• 8+ years of experience in VoIP, SIP, RTP, and media processing solutions.
• Prior experience working with GVMC, Dialogic XMS, or similar media servers.

Annual Base Pay Range (USD): $130,000-$160,000

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.

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.