Full-Stack Developer for Calculator Integration

Seeking a talented full-stack developer to embed a custom JavaScript financial calculator into a Systeme.io landing page. The ideal freelancer must have proven expertise with HTML/JS, secure cloud server deployment (AWS or DigitalOcean), and API-driven SaaS gatekeeping. The Plan is as we generate social media leads they are taken to the webpage with our Calculator and the client can use it themself to see their own numbers. then they can request the full custom report and explainer video to be emailed to them without talking to an agent. When they review the report and explainer video they will be pushed to making an appt on my calendar to implement the strategy or discuss it further. The project involves setting up the webpage through system.IO and make ll related features work with the calculator, drip campaign etc. I have the entire code ready for this calculator so there is no work to make the code. I also have the complete explanation of the calculator and project.