Senior Full Stack Developer @ Zillatech Ltd. Budapest

Senior Full Stack Developer @ Zillatech Ltd.
Budapest
Budapest, Budapest, HU

We’re looking for a full-stack engineer to join our small, fast-moving team building the next generation of AI influencer technology.
Our platform creates ultra-realistic virtual creators powered entirely by AI, and your work will directly shape how users interact with them.
We’re early-stage and freshly funded, this is a chance to join at the ground floor of a product that’s redefining the boundary between AI, creativity, and entertainment.

We’re Looking For Someone Who

• Has 4+ years of professional experience in full-stack web development
• Has shipped real-world, production-grade applications or significant features from design to deployment
• Understands APIs, databases, and real-time communication deeply
• Is comfortable working independently and making pragmatic product decisions
• Has experience in startups or freelance/contract roles
• Enjoys building, refining, and shipping tangible features
• Communicates clearly in English and collaborates smoothly in a lean team

Bonus Points for experience with any of these:

• agentic coding
• integrating AI or generative systems (LLMs, diffusion, etc. )
• serverless architectures (Runpod, AWS Lambda, etc. )
• media handling at scale (uploads, image/video optimization, streaming)
• integrating payment systems or subscription flows
• scalable async processing (queues, workers, background jobs)

We’re looking for a full-stack engineer to join our small, fast-moving team building the next generation of AI influencer technology.
Our platform creates ultra-realistic virtual creators powered entirely by AI, and your work will directly shape how users interact with them.
We’re early-stage and freshly funded, this is a chance to join at the ground floor of a product that’s redefining the boundary between AI, creativity, and entertainment.

, [Build, maintain, and scale our core product platform (frontend, backend, and integrations). , Work closely with the CTO on new user-facing features and key technical decisions. , Implement and optimize essential product flows — from onboarding and chat to payments and analytics. , Integrate third-party APIs including AI generation services, media storage, and payment systems. , Help shape the architecture and development culture of the company. ] Requirements: JavaScript, React, TypeScript, Express. js, MongoDB, Redis, Docker, WebSocket, Node. js, GitHub, AWS, Cloudflare, Agentic Coding, Generative AI, Serverless computing Additionally: Flat structure, Small teams.