Senior Full Stack Developer (Real-Time Video & WebRTC)

Location: Remote (U.S. preferred; time-zone overlap required)
Employment Type: Full-Time Employee
Compensation: Competitive, senior-level salary + full benefits
Reports to: Development & Design Manager

About the Role

We are building an enterprise-grade video conferencing platform using Cloudflare RealtimeKit. This platform supports over 100 simultaneous participants with a unique architecture featuring paginated video and universal audio, ensuring all participants are heard while video intelligently scales. This is a live, production system with active users and an ambitious roadmap. We are seeking a Senior Full Stack Developer to take full technical ownership, make architectural decisions, and rapidly deliver high-quality features. This role requires immediate contribution; it is not a learning or ramp-up position. You should be ready to build, optimize, and deliver in a fast-paced environment.

The Role

As the technical lead and primary owner of our real-time video conferencing platform, you will operate with a high degree of autonomy. You will balance development speed with production-quality engineering, collaborating closely with leadership on product roadmap and priorities.

What You'll Do

• Own the web-based video conferencing platform end-to-end.
• Lead development of native iOS and Android applications.
• Design, build, and rapidly ship new real-time features.
• Debug and resolve complex WebRTC and media pipeline issues.
• Optimize performance, reliability, and scalability at scale.
• Make architectural decisions across frontend, backend, and media systems.
• Collaborate directly with leadership on product direction.
• Deliver under aggressive timelines without compromising quality.

Technology Stack

Backend

• PHP 8.3
• MySQL
• RESTful APIs
• Redis (caching / pub-sub)

Frontend

• Vanilla JavaScript (ES6+)
• HTML5 / CSS3 (custom architecture; no heavy frameworks)
• Responsive, dark-themed UI

Video & Audio

• Cloudflare RealtimeKit (WebRTC SFU)
• Cloudflare Virtual Background Transformer
• Web Audio API
• MediaDevices API

Infrastructure

• Cloudflare (Realtime SFU, Workers, edge compute)
• LAMP-based hosting
• Docker / container-based workflows
• CI/CD pipelines

Required Qualifications

WebRTC & Real-Time Communication

• 3+ years hands-on WebRTC experience.
• Deep understanding of SFU architectures.
• Proven experience supporting 50+ participant calls.
• Strong knowledge of TURN/STUN and NAT traversal.
• Experience managing audio/video tracks at scale.
• Experience handling poor network conditions and adaptive bitrate.

JavaScript & Web APIs

• 5+ years JavaScript experience (including vanilla JS).
• Deep experience with MediaDevices, MediaStream, and MediaStreamTrack.
• Strong experience with the Web Audio API.
• Advanced async and real-time debugging skills.

Mobile Development

• 3+ years mobile development experience.
• Published apps on both Apple App Store and Google Play.
• Hands-on mobile WebRTC experience.
• Experience with Swift/Kotlin or React Native/Flutter with native modules.
• Background audio and mobile lifecycle handling.

Backend & Systems

• Strong PHP experience.
• MySQL schema design and performance tuning.
• RESTful APIs for real-time systems.
• Redis and containerized workflows.

Cloudflare & Media Features

• Experience with Cloudflare RealtimeKit.
• Cloudflare Workers or edge compute.
• Virtual backgrounds, screen sharing with audio, and recording pipelines.

AI-Assisted Development (Required)

• Comfortable using Claude CLI or equivalent AI coding tools.
• Actively uses AI to accelerate development and debugging.
• High output without sacrificing code quality.

Nice-to-Have Experience (Selective)

• Ownership of production real-time video or collaboration platforms used by external customers.
• Direct responsibility for uptime, media quality, and incident response.
• Experience with simulcast, SVC, or bandwidth-aware media strategies.
• Practical understanding of audio processing (echo cancellation, noise suppression, leveling).
• Hands-on experience with media quality monitoring and observability.
• Server-side recording pipelines or real-time playback systems.
• Secure media access control and role-based permissions.
• Debugging cross-browser and cross-device WebRTC issues at scale.
• Supporting large live sessions or events beyond standard meetings.

What You'll Be Working On

Web Platform

• Large-scale, multi-participant sessions.
• Universal audio architecture.
• Active speaker detection.
• Screen sharing and presenter modes.
• Real-time chat, reactions, and virtual backgrounds.
• Waiting rooms and role-based permissions.
• Device testing, recording, and playback.

Mobile Applications

• Full feature parity with web.
• Native iOS and Android UX.
• Background audio and push notifications.
• Deep linking, calendar integration, and offline recording access.

Remote Work Requirements

• Reliable high-speed internet for video collaboration.
• Dedicated, professional workspace.
• Ability to work independently and communicate proactively.
• Availability during core business hours with some time-zone flexibility.

Benefits

• Competitive compensation.
• Paid training on proprietary systems and tools.
• Flexible, remote-friendly work environment with travel opportunities.
• Professional development and cross-cultural exposure.
• Collaborative, creative team culture.
• Hands-on experience with advanced event technology.

Job Type: Full-time
Pay: $90,000.00 - $105,000.00 per year
Benefits: Dental insurance, Health insurance, Vision insurance
Work Location: Remote

Equal Opportunity Statement

Intravo is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, gender, gender identity or expression, sexual orientation, age, disability, genetic information, veteran status, marital status, or any other characteristic protected by law.

Employment Disclaimer

This job description is not intended to create a contract of employment. Employment with Intravo is at-will, meaning either the employee or the company may terminate employment at any time, with or without cause or notice, in accordance with applicable law.

Accommodation Statement

Intravo is committed to providing reasonable accommodations to individuals with disabilities. If you require assistance during the application or employment process, please notify Human Resources.