Full-Stack Developer (Potential CTO Track) - PHP, JavaScript. Our client is an early-stage, fast-growing company building high-performance web-based applications. They''re assembling a small, elite technical team to lead the development of cutting-edge browser experiences with a strong focus on performance, interactivity, and clean architecture. The team is remote-first, product-driven, and values speed, clarity, and thoughtful engineering. For the right candidate, there s a clear track to a CTO-level leadership position. You''ll work closely with the founders to design and build browser-based applications that deliver real-time interactive experiences. You ll be a key part of early architectural decisions, with full input on both front-end and back-end development. This is an opportunity to make a significant technical and strategic impact from day one. Responsibilities: Build robust, scalable browser-based applications using JavaScript or TypeScript. Develop back-end services (ideally in PHP, but flexible depending on your strengths). Design systems that support real-time data flow and responsiveness. Collaborate with a small, high-trust team to ship features quickly and iteratively. Establish and evolve engineering standards and best practices. Take ownership of technical direction, with room to grow into a leadership role. Requirements: 3+ years of full-stack development experience. Strong skills in front-end JavaScript or TypeScript and component-based frameworks. Exp