Voice/Telephony - SME (PJSIP)

Role: Voice/Telephony subject matter expert

Location: Work from home

Company Description

Miratech helps visionaries change the world. We are a global IT services and consulting company that brings together enterprise and start-up innovation. Today, we support digital transformation for some of the world's largest enterprises. By partnering with both large and small players, we stay at the leading edge of technology, remain nimble even as a global leader, and create technology that helps our clients further enhance their business. We are a values-driven organization and our culture of Relentless Performance has enabled over 99% of Miratech's engagements to succeed by meeting or exceeding our scope, schedule, and/or budget objectives since our inception in 1989.

Miratech has coverage across 5 continents and operates in 25 countries around the world. Miratech retains nearly 1000 full-time professionals, and our annual growth rate exceeds 25%.

About the Role

We are seeking an experienced Voice Connector Engineer to own the development, deployment, and debugging of our PJSIP/PJSUA2-based voice connector deployed in GCP and RHEL8 environments. You’ll play a critical role interfacing with our Session Border Controller (SBC) and working closely with internal engineering teams and external telephony partners to deliver a robust, high-performance voice solution.

Key Responsibilities

• Lead integration, build, and deployment of voice connector components developed in PJSIP/PJSUA2.
• Debug complex media flow issues using PJMEDIA; resolve build/system-level bugs in PJLIB.
• Manage networking and NAT traversal in PJNATH, ensuring a seamless signal and media path.
• Collaborate across Python and C/C++ codebases to maintain and enhance the call-handling engine.
• Integrate and maintain components via cmake/make; manage AIB (Application Interface Binary) builds and packaging.
• Troubleshoot OS-level dependency and build failures on RHEL8; ensure continuous delivery of release artifacts.
• Monitor and debug SIP signaling interactions with SBC, including call drops and negotiation errors.
• Validate end-to-end voice call flows across cloud, OS, and telephony layers.
• Support infrastructure automation workflows, CI/CD pipelines, and production debugging.
• Collaborate with telephony engineers, DevOps, and product teams to ensure high rise-time connector stability.
• Communicate clearly and effectively with technical and non-technical stakeholders.