Senior Software Developer – Real-Time Audio & VoIP

WebCreek is looking for a Senior Software Developer with strong experience in real-time audio technologies, VoIP systems, and full-stack development to help build and enhance a mission-critical public address and communication platform.

The ideal candidate has hands-on experience developing and supporting production systems using WebRTC, SIP/VoIP, and real-time audio streaming technologies. This role focuses on delivering live and recorded audio to hundreds of networked endpoints, integrating with SIP-based public address and phone systems, and ensuring reliable audio transmission.

This position is well suited for a senior developer who enjoys solving complex technical challenges, takes ownership of features from design through production, and can work across backend, frontend, and real-time communication technologies.

What You'll Do:

• Design, develop, and maintain real-time audio streaming capabilities for live and recorded announcements across hundreds of networked endpoints.

• Build and optimize WebRTC-based audio solutions, including browser-side and server-side communication.

• Develop and maintain integrations with SIP/VoIP systems, PBX platforms, and commercial public address solutions.

• Implement and troubleshoot audio transport protocols, codecs, jitter buffering, packet-loss handling, and secure real-time communication.

• Design scalable one-to-many audio distribution solutions, focusing on synchronized playback, latency, and reliability.

• Develop and maintain backend services using Node.js, GraphQL, MySQL, Redis, and message-driven communication technologies.

• Contribute to frontend development using Vue 3 or React, supporting operator-facing interfaces and audio management workflows.

• Collaborate with embedded engineers to investigate audio issues, review C/C++ firmware, and troubleshoot communication between software and hardware.

• Deploy, monitor, and troubleshoot containerized services using Docker, Kubernetes, and Helm.

• Write automated unit and end-to-end tests, participate in code reviews, and maintain reliable CI workflows using GitHub Actions.

• Use AI-assisted development tools to improve engineering productivity while carefully reviewing and validating generated code.

• Collaborate with Engineering and product stakeholders to translate requirements into technical designs and deliver reliable production solutions.

What You Bring:

• 7+ years of professional software development experience, including experience delivering and supporting at least one production software product.

• Strong experience developing real-time audio, VoIP, paging, intercom, conferencing, or audio broadcasting solutions.

• Hands-on production experience with WebRTC, including browser-side and server-side implementations using technologies such as Janus, mediasoup, LiveKit, or Pion.

• Strong knowledge of SIP and VoIP technologies, including PBX integrations, SIP trunks, Asterisk, FreeSWITCH, Kamailio, or similar platforms.

• Experience with audio codecs and transport protocols, including Opus, G.711, RTP/RTCP, SRTP, SIP over TLS, and STUN/TURN/ICE.

• Understanding of audio streaming challenges, including jitter buffers, packet loss, latency measurement, synchronized playback, and one-to-many audio distribution.

• Strong backend development experience with Node.js and GraphQL APIs; TypeScript is a plus.

• Working proficiency with Vue 3 or React.

• Experience with MySQL, Redis, and message-driven or publish/subscribe systems such as MQTT.

• Knowledge of Docker, Kubernetes, Helm, and troubleshooting services running in containerized environments.

• Strong Linux and networking fundamentals, including TCP/UDP, TLS, WebSockets, and packet capture analysis.

• Ability to read C/C++ firmware and collaborate with embedded engineers to investigate audio-related issues.

• Experience writing automated tests, working with GitHub Actions, and following disciplined Git and pull-request workflows.

• Experience using AI coding agents, such as Claude Code, as part of daily development work, with the ability to review and correct generated code.

• Strong problem-solving skills, technical ownership, and the ability to independently deliver features from design through production.

• Professional proficiency in spoken and written English.

What You'll Gain:

• A full-time, fully remote position with a growing international company.

• The opportunity to work on a mission-critical communication platform with real-world applications.

• Hands-on experience developing scalable real-time audio and networked communication solutions.

• Opportunities to collaborate with experienced engineers on complex software, networking, and embedded systems challenges.

• A collaborative remote working environment with an international engineering team.

Location: Remote LaTam

WebCreek is an equal opportunity employer. We believe our strength comes from our people and welcome all qualified applicants regardless of race, religion, color, gender, age, or disability. If you have the skills and the passion for tech, we want you on our team.

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