Mollie Payment Integration with Sticky.io CRM (Custom HTML/JS) I’m looking for an experienced developer to help me integrate Mollie as a payment gateway on my website, which is built using SubscribeFunnels and connected to Sticky.io as my CRM. Current Setup Funnel platform: SubscribeFunnels CRM: Sticky.io Payment gateway needed: Mollie & SpotOn Payment type: One-time purchases only Funnel includes: Main checkout + 1 upsell Option if possible: Process the transaction through Mollie, if declined try it on SpotOn or vice versa Sticky.io is already connected to my fulfillment center and must continue receiving order data. Important Context Sticky.io does not support Mollie as a native payment gateway. This means: Mollie will NOT be added inside Sticky.io, Sticky.io core will NOT be modified and no rebuilding of the funnel Instead, this must be done via a custom workaround using: Mollie API & webhooks Sticky.io public API, Pure HTML + JavaScript (SubscribeFunnels) What the Integration Must Do: Accept payments via Mollie on the SubscribeFunnels checkout and after successful payment: Send customer data, order details, and payment status to Sticky.io Ensure orders appear correctly in Sticky.io so fulfillment continues normally Support: One-time purchases, One upsell, Handle payment success / failure states properly, Be secure, reliable, and tested end-to-end What This Project Is NOT, Not a native Sticky.io gateway integration, Not a plugin installation, Not a Stripe replacement, Not a funnel redesign, Not subscription logic (no recurring billing) Strong experience with: HTML & JavaScript, Payment APIs (Mollie preferred), Webhooks, CRM API integrations (Sticky.io or similar), Clean, documented implementation, Basic testing to confirm orders reach Sticky.io correctly