As a seasoned IT professionals, I have a well-versed skill set in JavaScript and Node.js – the perfect fit for completing your real estate management website. Building on my 12-year experience, I've gained extensive knowledge in website development, and I've successfully completed numerous projects similar to the one you're looking for. The fact that we'll be working collaboratively on GitHub aligns perfectly with my work approach, where clear communication helps to provide efficient deliverables.
My expertise in MongoDB, HTML, and CSS will come in handy, specifically regarding data collection and user profiling as needed for your project. Combined with my proficiency in JavaScript and Node.js, your requirements of building CRUD functionality to manage customers will be dealt with utmost skills ensuring a sleek user experience.
Moreover, don't pass over my admiration for automation through streamlined coding rendering sequential tasks into smooth-running automated processes - a skill that goes hand-in-hand with amassing clutter-free information-flow for property-management websites. In short, if you want someone who has the breadth of experience and the exact skillset for your job alongside a passion for innovation and security implementation then we need to have a chat!