I need an experienced full-stack professional who can bring several independent applications under one roof through reliable, secure app development and software integrations. My web platform, mobile components and a handful of third-party services already exist; what’s missing is the glue that lets data flow effortlessly between them, enforces a single source of truth and removes manual hand-offs. Here’s what I’d like you to handle over the next month: analyse the current codebases and APIs, propose the most efficient integration architecture, build the connectors or middleware required, and deploy everything in a way that is easy to maintain. Performance, security and clean documentation are non-negotiable because this has to scale without surprises. To be considered, send me a detailed project proposal outlining your approach, milestones, tech stack of choice and any similar integrations you have completed. I’m open on languages and frameworks as long as they are well-justified, but familiarity with REST, GraphQL, message queues and cloud deployment pipelines will clearly help you hit the ground running. Deliverables I will sign off on: • A fully functional app based on provided prototype , in a seamlessly rapid iteratable manner. • A fully functioning integration layer that passes end-to-end tests between all specified systems • Clear setup and deployment instructions • Concise technical documentation that future developers can follow The timeline is tight but realistic, and I’m ready to move quickly once I see a solid plan.