Job Description

About Chapter AI

ChapterAI is an applied AI company. We believe that artificial intelligence will deliver the next chapter in human evolution, transforming how we live, work, and interact with technology. Our goal is to harness these new computer vision capabilities to solve significant and meaningful problems. We're looking for a Senior Full Stack Developer to help us push the boundaries of AI-driven web experiences.

The Role

We're seeking a

Senior Full Stack Developer

who can seamlessly blend modern frontend frameworks like React with backend technologies for creating high-performing, intuitive web applications. You'll play a key role in building our app's features, optimizing for smooth user interactions, high-performance data processing, and seamless AI integrations.


This is a full-time contract role, with potential for a long-term collaboration.

What You'll Do

Develop & Optimize Our Web Apps

: Build high-performance web features using modern stacks like React/Next.js for frontend and Node.js or similar for backend, while leveraging platform-specific optimizations.

Integrate AI-Powered Features

: Work closely with our AI team to integrate machine learning models into web apps, optimizing for real-time responsiveness and scalability.

Build Custom APIs and Modules

: Develop and maintain backend components for low-latency data processing, API endpoints, and hardware-accelerated integrations where applicable.

Ensure Performance & Scalability

: Optimize app performance, reduce load times, and enhance efficiency across browsers and devices.

Collaborate with Design & AI Teams

: Work alongside designers and AI engineers to ensure seamless user experiences and backend integrations.

Maintain High Code Quality

: Write clean, maintainable, and testable code while following best practices in architecture and security.

Requirements

Who You Are

You're an experienced full stack developer who thrives in fast-paced environments, has a deep understanding of both frontend and backend development, and is excited about pushing AI-driven web applications to new levels. You heavily rely on AI coding tools (e.g., GitHub Copilot, Claude, or Cursor) to enhance productivity and innovate in your workflow.

Must-Haves

BSc or higher in Computer Science or equivalent engineering degree. Native or fluent proficiency in English with excellent communication skills. European time zone. 7+ years of full stack web development experience (e.g., JavaScript/TypeScript on frontend, Node.js or equivalent on backend). Strong debugging and problem-solving skills, with the ability to design scalable features such as user authentication, real-time interactions, and data synchronization. Deep understanding of web performance optimization, including state management, rendering efficiency, and API responsiveness. Strong grasp of asynchronous programming (e.g., Promises, async/await, Observables). Familiarity with CI/CD for web apps (e.g., GitHub Actions, Vercel, or Jenkins). Heavy use of AI coding tools in daily workflows to accelerate development and problem-solving.

Nice-to-Haves

Python experience for backend scripting or AI integrations. LangGraph experience for creating agent systems. Background in AI or machine learning, such as working with models for computer vision or natural language processing. Experience with cloud deployment and serverless architectures (e.g., AWS, Vercel, or Azure). Familiarity with real-time web technologies (e.g., WebSockets, GraphQL).

Benefits

Why Join Chapter AI?

High-Impact Role

: Own the full stack tech and shape the future of our web apps.

Remote & Flexible

: Work from anywhere with a world-class team.

Cutting-Edge AI

: Work on groundbreaking AI-powered web experiences. *

Competitive Contract Rate

: Attractive compensation based on experience.