
Freelancer Full Stack Engineer
Job Description
Posted on: April 14, 2026
Join an innovative project focused on building and scaling an AI companion website that enables real-time video interactions between users and AI companions. You will play a key role in developing a robust AI video call system, integrating seamless voice input/output, and ensuring AI-generated responses are synchronized with video or avatar outputs. The role also involves enhancing the chat interface for a modern, responsive user experience, including features such as typing animations, session continuity, and multimedia outputs. You will be responsible for integrating AI-based image generation directly into the chat, allowing users to request and receive generated images instantly. This is an opportunity to work on a cutting-edge platform that blends AI, real-time communication, and engaging UI/UX design. Responsibilities
- Develop and maintain a real-time AI video call system for user-AI interactions
- Integrate voice input and output, ensuring smooth synchronization with video or avatar responses
- Design and implement a modern, responsive chat UI/UX with features like typing animations, session continuity, and multimedia outputs
- Integrate AI-based image generation into the chat interface for instant user requests
- Collaborate on scalable frontend and backend architecture to support growth and high user engagement
- Optimize system performance and reliability for real-time communication
- Stay updated on advancements in AI, voice synthesis, and avatar technologies to inform product improvements
Skills And Requirements
- Proven experience in full stack web development, including both frontend and backend technologies
- Strong background in AI/ML integrations, particularly with real-time systems
- Proficiency with modern JavaScript frameworks (e.g., React, Vue, or Angular) and backend technologies (e.g., Node.js, Python, or similar)
- Experience with WebRTC or similar technologies for real-time video and audio communication
- Familiarity with voice synthesis, speech-to-text, and AI avatar solutions is a plus
- Demonstrated ability to design and implement responsive, user-friendly chat interfaces
- Experience integrating AI-based image generation APIs or models
- Strong problem-solving skills and attention to detail
- Ability to work independently and deliver high-quality results on a contract basis
- Bonus: Experience with growth-driven product design and scaling web applications
About Twine Twine is a leading freelance marketplace connecting top freelancers, consultants, and contractors with companies needing creative and tech expertise. Trusted by Fortune 500 companies and innovative startups alike, Twine enables companies to scale their teams globally. Our Mission Twine's mission is to empower creators and businesses to thrive in an AI-driven, freelance-first world.
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