Fullstack Developer (Frontend-Focused) - Base44

At Base44, we're looking for a talented Fullstack Developer to join our mission to change how products get built. You'll be a key player in a fast-moving, collaborative team, taking full ownership of features from polished user interfaces all the way down to the APIs that power them. If you're a passionate engineer who loves solving hard problems with clean, elegant code and building delightful user experiences, we want to hear from you.

TL;DR

We are looking for a Fullstack Developer with deep frontend experience to build end-to-end features on our AI platform.

 You should be passionate about using AI to innovate both our product and your own development process.

 The role includes working in a startup-mode environment.

 

What You'll Do

• Own end-to-end features, designing and building scalable, high-quality frontends and the backend services that support them.
• Tackle tough technical challenges with creative and efficient solutions, working on a cutting-edge, AI-powered platform.
• Push your code to millions of users, creating fast, beautiful, and intuitive interfaces that make a tangible impact every day.
• Champion clean architecture, maintainable UI components, and performance optimization.
• Grow your expertise by learning from top-notch engineers and expanding your skills across both frontend and backend domains.
• Influence our engineering culture by contributing to internal knowledge sharing and, if you're interested, the open-source community

• An experienced Fullstack Developer with a minimum of 5 years of professional experience and a strong desire to build complete, end-to-end products.
• You have deep expertise in modern frontend frameworks such as React (and TypeScript, CSS-in-JS, or component-driven architectures).
• You’re comfortable working with backend technologies like Python, Java, NodeJS, and understand how to build APIs that power great UIs.
• You're passionate about using AI tools to build the product and improve the way we work.
• Familiar with AI infrastructure and concepts (e.g., RAG, Tools, MCP).
• A proactive and collaborative team player with strong reasoning and communication skills. You can effectively share your ideas while respecting others' approaches.
• Focused on writing clean, simple, and maintainable code. You have a keen eye for design details, performance, and user experience.
• You're able to quickly grasp large, complex systems and understand how frontend and backend parts connect.
• Well-versed in software engineering best practices, including testing, code reviews, and identifying anti-patterns.
• Comfortable working in a production environment and skilled in debugging complex frontend or fullstack issues.

We’re Base44, a newly acquired part of Wix, on a mission to change how products and apps get built. Our AI-powered platform allows anyone to create custom applications using natural language—no traditional coding required. We operate like a startup within Wix: fast-moving, collaborative, and focused on solving complex problems with simple, elegant solutions.

We’re here for anyone who wants to build: creators, solo founders, startups, entrepreneurs, side hustlers, and everyone in between. Whether you're launching a product, validating a concept, or chasing a hunch, Base44 gives you the power to make it real.