I already have a raw Python source code along with a step-by-step workflow / logic document. The project is approximately 90–95% complete, but some components may be missing, incomplete, or not properly integrated. I need an experienced developer to review, complete, and stabilize the system. What I Need I am looking for a genuine, experienced Python backend developer who can: Review my existing Python source code Identify missing or broken components Complete the remaining logic Make the system fully working, stable, and reliable Improve structure where required for long-term continuous usage Required Work Fix and complete the existing Python code Ensure the system runs stable for long hours without crashes Create a simple web dashboard / control panel (Flask or FastAPI preferred) Implement a license key system 1 day / 7 days / 30 days access Auto-expiry after validity ends Software must stop when license expires Admin panel features: Enable / disable users Manage licenses Server-side validation only (No client-side trust) Security Requirements License verification from server Encrypted configuration files Code obfuscation to prevent easy copying Basic IP or device binding (reasonable & legal) Domain Knowledge (Important) Experience with real-time multiplayer systems, session-based workflows, and long-running automation logic is strongly preferred. Familiarity with match/session lifecycle, activity tracking, and server-side behavior patterns will be a big advantage. (Exact domain details will be shared after NDA.) What I Will Provide Raw source code Workflow / logic documentation If any part is missing or incomplete, the developer must identify and implement it. Confidentiality NDA is mandatory Code and logic must remain confidential Reuse, resale, or sharing of code is strictly prohibited Payment Terms (Strict & Clear) No full advance payment Milestone-based payments only First payment after working demo Final payment after stable deployment Payment released only when system works as described Only Apply If You Have real Python backend experience Have worked with APIs, authentication, licensing systems Can show previous work or GitHub Communicate clearly and professionally If you cannot deliver a fully working system, please do not apply.