WordPress Developer — Assessment Modal and User Onboarding

I need an experienced JavaScript developer to build two specific interactive features for a WordPress listings platform. This is focused, well-scoped work with clear API documentation provided. No backend work, no AI, no server access required.

What you are building:

Feature 1 — Three-stage assessment modal
Users click an eligibility button on any listing. A modal opens showing multiple-choice questions fetched from a REST endpoint. After questions are answered, a 10-second evaluation animation plays with a rotating ad display. Results show a percentage score dial, match verdict, and personalised recommendations. Please start your post with, I can do this at (best rate in fixed terms not per hour rate) Works differently for logged-in users versus guests. Mobile: bottom sheet. Desktop: centered modal.

Feature 2 — Multi-step user onboarding flow
After registration, users see a 4-step profile setup form collecting their interests, discipline, level, and goals. A second shorter form appears after their first save action. A toast notification appears when their profile reaches 50 percent completion.

What makes this straightforward:
All API endpoints are already built by a separate backend developer. You receive full documentation with exact URLs and sample JSON responses. You are consuming endpoints and building UI — nothing else.

Skills needed:
Vanilla JavaScript (ES6+, fetch, async/await, localStorage, DOM manipulation), CSS animation and transitions, WordPress REST API calls from the browser, responsive design for mobile and desktop layouts.

Skills not needed:
React, Node.js, PHP, AI knowledge, server access, database work.