Senior Telephony and Media Validation QA Engineer

Senior Telephony and Media Validation QA Engineer

Experience: 5+ yrs

Location: Remote (USA/CANADA)

Job: Permanent -Full Time Requirement

Job Description:-

Overview-

• We are actively seeking an experienced, multidisciplinary Solutions Engineer to design and implement a comprehensive telecommunications solution integrating WebRTC, SIP, and robust multimedia services. The ideal candidate should possess extensive knowledge in designing and implementing telco-grade unified communication platforms. This includes ensuring high availability and developing secure, scalable APIs for system interactions in cloud environments.
• The ideal candidate should also have significant testing and evaluation expertise, coupled with the ability to communicate effectively, both verbally and through concise documentation.

What you will do:

• Evaluate and contribute to the design of a multimedia communications platform using Kamailio for SIP routing and trunk configurations, and Asterisk for media processing.
• Conduct research on commercial solutions that meet similar requirements, leveraging IMS components.
• Produce documentation detailing performed studies and their applicability to platform and service evolution.
• Implement WebRTC functionality for browser-based communication, alongside traditional SIP user capabilities.
• Create comprehensive documentation covering all functionalities and use-cases, ensuring clarity for developers, engineers, and vendors.
• Provide a detailed manual or guideline for replicating the setup on another system, including configuration files, versioning details, and custom scripts.
• Collaborate with Engineering and Development on applicable projects.
• Provide Tier 3 support to operations when necessary for problem resolution.

Qualifications:

• Bachelor s degree in computer science, Information Technology, or a related field.
• 5+ years of experience with VoIP architecture, including hands-on installation experience deploying open-source UC (such as Kamailio, Asterisk, etc.) in a CSP, UCaaS platform to a Telco setting.
• Extensive knowledge and understanding of VoIP deployments and protocols like SIP, SDP, RTP, WebRTC, and their troubleshooting. Understanding of video/audio codecs, packetization, encryption, and transport.
• Experience with the development of unified communications features and capabilities using WebRTC, Real-Time Text, Automatic Speech Recognition.
• Working knowledge of advanced compression techniques such as H.264/265,VP9, AV1, OPUS.
• Hands-on experience with deployment on Private and Public network/security clouds (AWS).
• Experience with containerization and orchestration technologies like Docker and Kubernetes.
• Experience with IAC, using provisioning and configuration management tools such as Terraform, CloudFormation, Chef, Ansible.
• Experience configuring and troubleshooting voice protocols, including SIP, Diameter, SS7, SIGTRAN (M2PA/SUA/M3UA), ENUM, and DNS Least Cost Routing, Security Controls (TLS, etc.).
• Working-level understanding of IMS architecture (VoIP, Video, others), LTE architecture (VoLTE).
• Experience with commercial Softswitches, Session Border Controllers, SIP proxies, Media, and Application Servers. (Experience in the evaluation of these technologies is a plus)
• 5+ years of experience in Networking. Full knowledge of the OSI model and a deep understanding of the 1-7 Network Layers.
• Good understanding of Linux environments, including bash scripting, XML, JSON.
• Excellent verbal and written communication skills, presentation, and problem-solving skills.
• Self-starter with strong organizational and time management skills, self- directed and able to handle multiple priorities with demanding timeframes.
• Ability to work collaboratively with colleagues and staff to create a high-quality results-driven, team-oriented environment.
• Demonstrated ability to use discretion, make sound decisions, and maintain confidentiality.
• Willingness and ability to work flexible hours and travel (up to 10%); will include some overnight travel.
• Proficient in MS Office, modern communication tools for virtual teams (i.e.,MS Teams)