Full-Stack Developer with Cybersecurity Experience

Current stack:- Frontend: Next.js / React / TypeScript- Backend: Next.js API routes / server-side TypeScript- Database layer: repository pattern, currently local/demo data with planned production DB integration- Auth: role-based access, local demo users, private portal flows- Integrations: Telegram bot, OpenAI receipt/document intelligence, possible Google Workspace/export flows 1. Review architecture and code quality.2. Harden authentication, authorization and session handling.3. Review role-based access controls across all vessel/user workspaces.4. Audit API routes for data leakage, privilege escalation and insecure direct object references.5. Prepare the app for production deployment.6. Recommend database, storage and secrets architecture.7. Secure file uploads, receipts, evidence photos and document previews.8. Review Telegram/OpenAI integration security.9. Build a clear security checklist and remediation plan.10. Help structure CI/CD, environment variables, backups and monitoring. We are building a private yacht and maritime operations platform for management offices, captains and onboard crew.We need a senior full-stack developer and cybersecurity specialist to audit, harden and help productionize the platform.Current stack:- Frontend: Next.js / React / TypeScript- Backend: Next.js API routes / server-side TypeScript- Database layer: repository pattern, currently local/demo data with planned production DB integration- Auth: role-based access, local demo users, private portal flows Good environment Maritime