Project Description We are developing a football prediction platform (opticgoal.com) and we need an experienced full-stack developer to complete and fix critical systems related to API data, prediction automation, multilingual support, mobile app buttons, and advertisement setup. The developer must have strong experience with football/sports APIs, caching systems, and clean frontend integration. Task 1 — Football API Structure & Data Fixes Fix and organize all API data across the website: Chance/odds style probability display structure Correct country → league → match hierarchy Match details page (stats, timeline, events) Match events (goals, cards, substitutions, timeline) Standings / league table Country flags for leagues and matches Proper data mapping and clean UI output Caching system to prevent excessive API calls Task 2 — Prediction System (Very Important) We already have a Predictions section. It must be automated: Admin selects matches from API once Match start time, live score, and final result must update automatically Predictions page must NOT call the API again Data must be stored in database and updated via cron job When match finishes → result updates automatically in predictions If anything missing for a professional prediction system, implement it Task 3 — Multilanguage Support Add important languages to the website: English (default) Arabic Turkish French Spanish Language switcher in header. SEO-friendly structure. Task 4 — iOS, Android, Huawei Download Buttons Add download app buttons: Visible on homepage (top section) Visible in menu Visible in footer on all pages Buttons for: iOS App Android App Huawei App (Links will be provided later) Task 5 — Advertisement System Prepare ad placement infrastructure: Header ad area In-content ad area Sidebar ad area Footer ad area Easy script insertion for ad networks (e.g. Adsterra/others) Goal Make the website technically correct, automated, scalable, and ready for traffic and monetization. Required Skills Sports/Football API experience Backend caching & cron jobs Database optimization Frontend data rendering Multilanguage implementation Ad placement structure Deliverables Fully working API structure Automated predictions system Multilanguage website App download buttons placed correctly Ad areas ready for use Clean, maintainable code Please share similar past work related to sports or API-driven platforms.