Next.js Engineer Needed: Scalable User Registration Infrastructure for Real-Time Booking System

We are seeking an experienced Next.js developer to engineer a high-performance, mobile-optimized user onboarding and registration module. This component will serve as the initial data-ingestion layer, designed to seamlessly interface with our upcoming driving training booking and scheduling ecosystem. This is an initial, tightly scoped technical sprint to evaluate engineering quality for a long-term contract. Technical Scope & Requirements: Architecture: Seamless integration of a secure registration component into an existing Next.js application architecture. Data Schema: The form must capture and validate the following parameters: Full Name (string sanitization) Phone Number (localized input validation) Email Address (RFC 5322 compliant validation) Preferred Lesson Date (optimized for state-driven scheduling availability) Additional Information / Custom Message (optional string payload) Frontend & UX: Fully responsive, mobile-first UI architecture ensuring low-latency interactions and clean state transitions. Validation & State Management: Robust client-side and server-side validation, error handling, and asynchronous success-state rendering upon successful payload dispatch. Project Context: The core codebase is already established; this is a modular extension, not a greenfield project. Candidates who demonstrate clean state management and structured code will be prioritized for subsequent phases, which include building out the deeper automated booking engine, calendar synchronizations, and backend database integrations.