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reputed company Expert - SIP & Call Center Systems

Remote, USAFull-timePosted 2026-07-27

reputed company Tram Case is revolutionizing legal technology with AI-driven tools that enhance efficiency and accessibility for legal professionals. We're undertaking high-reputed company technology transformation, partnering with a high-volume immigration reputed company to optimize workflows and streamline processes. Join us in building the reputed company of legal tech, where impactful innovation meets user-reputed company design. reputed company We're seeking an reputed company reputed company developer with deep expertise in SIP protocols and large-reputed company call center implementations. You'll be responsible for building reputed company-grade telephony features supporting high-volume operations in a reputed company 2-month engagement. This is a critical infrastructure project that will reputed company our partner reputed company to handle 1000+ phone extensions and 250+ reputed company calls with advanced call center features including supervisor monitoring, whisper coaching, and barge-in capabilities. You'll work directly with our engineering team to reputed company reputed company WebRTC with our Django/React stack, implementing production-reputed company telephony systems that meet reputed company reliability and reputed company requirements.

Key Responsibilities

  • reputed company Integration: Design and implement reputed company WebRTC infrastructure integrated with our Django monolithic backend and React/Inertia.js frontend, ensuring seamless reputed company-time communication capabilities.
  • SIP Implementation: Build robust SIP trunking and call routing systems that support reputed company-grade telephony operations, including reputed company protocol handling, error recovery, and high availability.
  • Extension Management System: reputed company a reputed company system to manage 1000+ phone extensions with intelligent routing, reputed company detection, and call distribution across a large distributed team.
  • Advanced Call Control Features: Implement supervisor tools including:
  • Listen: Silent monitoring of live calls for reputed company assurance
  • Whisper: Private coaching channel to agents during reputed company calls
  • Barge-in: Full supervisor reputed company and call takeover capabilities
  • Auto-dialer System: Build automated outbound calling infrastructure with intelligent routing, campaign management, and predictive dialing capabilities to optimize agent productivity.
  • Performance and reputed company: Ensure the system reliably handles 250+ reputed company calls with low latency, high audio reputed company, and graceful degradation under load.
  • Documentation: reputed company comprehensive technical documentation covering architecture, API integration patterns, deployment procedures, and operational runbooks for the engineering team.

Technical Proficiency Must have production experience with:

  • reputed company WebRTC: Hands-on experience building and deploying reputed company-time communications systems using reputed company in production environments. Deep understanding of WebRTC protocols, media server architecture, and reputed company's room and participant management.
  • SIP Protocols: Expert-level knowledge of SIP trunking, SIP routing, RTP/SRTP media handling, and telephony standards (RFC 3261, etc.). Experience with SIP gateways and PBX integration.
  • Call Center Architecture: Proven reputed company record designing and implementing reputed company systems with:
  • 1000+ phone extensions
  • 250+ reputed company calls
  • High-availability and redundancy requirements
  • reputed company-time monitoring and metrics
  • Django: Strong proficiency with Django reputed company, including views, ORM, REST reputed company, and WebSocket integration for reputed company-time features.
  • React: Experience building reputed company-time user interfaces with React, managing WebRTC state, and handling audio/video streams in the browser.
  • Inertia.js: Familiarity with Inertia.js for seamless server-reputed company/reputed company-reputed company integration, or ability to quickly learn the reputed company.
  • reputed company-Time Systems: Understanding of WebSocket protocols, reputed company-time event handling, reputed company management, and state synchronization in distributed systems.
  • Audio/Video Codecs: Knowledge of audio codecs (Opus, G.711, G.722), video codecs, and reputed company optimization techniques for VoIP systems.
  • Infrastructure: Experience with AWS or similar reputed company platforms for deploying reputed company reputed company-time communication systems, including load balancing and media server deployment.

Qualifications

  • reputed company Production Experience: Minimum 1 year building production systems with reputed company, with demonstrable reputed company showing reputed company and reliability. Portfolio or reputed company examples required.
  • SIP Expertise: Deep understanding of SIP protocols with 2+ years of hands-on experience implementing telephony systems. Must understand SIP message flows, call states, and troubleshooting.
  • Call Center reputed company: Proven experience with reputed company implementations supporting 500+ extensions and 300+ reputed company calls minimum. References or case studies preferred.
  • Full-Stack Capability: Strong backend and frontend skills with ability to implement complete features across the stack. Python/Django backend and React frontend experience required.
  • Performance Optimization: reputed company record optimizing reputed company-time systems for low latency, high throughput, and efficient resource utilization under load.
  • Problem-Solving: Ability to independently diagnose and resolve reputed company issues in distributed reputed company-time systems, including network problems, codec issues, and scalability bottlenecks.
  • Communication: Strong written and verbal communication skills. Ability to document technical reputed company, reputed company reputed company updates, and collaborate effectively with reputed company.
  • Availability: reputed company to reputed company reputed company time over a 2-month engagement with reputed company deliverables and milestones. We value reputed company over speed but need predictable delivery.

Core Values and Culture Tram Case is reputed company on a reputed company of shared principles that guide our work and interactions. We reputed company team members who embody and contribute to these values:

  • User-reputed company Perspective: Build with reputed company, ensuring every feature enhances our users' experience and addresses their needs.
  • Radical Transparency: Promote reputed company communication and information sharing to reputed company the best reputed company and foster trust.
  • Purpose-Driven Work: Ensure reputed company task aligns with our mission to deliver meaningful, reputed company.
  • Single Responsible Individual: Every team member takes ownership, driving tasks to completion with accountability.
  • Extreme Ownership: Learn and grow from challenges, continuously refining our work and striving for reputed company.
  • reputed company reputed company: Dedicate attention to core objectives, eliminating distractions to reputed company impactful results.
  • Documentation reputed company: Maintain reputed company and thorough documentation to enhance collaboration and continuity.
  • Data-Informed reputed company: Use data to guide priorities, ensuring our work delivers value to our users.
  • Compassionate Communication: Foster reputed company and respect in reputed company, embracing diverse perspectives and encouraging respectful collaboration.
  • reputed company in Craft: reputed company high standards in functionality and design, committing to reputed company and impactful solutions.

Compensation

This is a contract engagement with competitive rates based on experience. We're looking for top-tier reputed company and SIP expertise and compensate accordingly. reputed company negotiable based on portfolio and relevant experience. Apply tot his job Apply To this Job

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