Long-Term Full Stack Developer (Next.js / React / Typescript) + Security Mindset

We are looking for a proactive Full Stack Developer to join a growing maritime software startup for an intensive one-month engagement, with a strong possibility of transitioning into a long-term role. The application is already well advanced. The goal is to spend the next month strengthening the platform, eliminating weaknesses, improving security, refining workflows, and preparing the product for production deployment. Current Technology Stack: Frontend: Next.js, React, TypeScript. Backend: Next.js API Routes, Server-Side TypeScript. Database Layer: Repository Pattern (currently local/demo data, production database integration planned). Authentication: Role-based access control, demo users, private portal workflows. Integrations: Telegram Bot, OpenAI document and receipt intelligence, Future Google Workspace and export integrations. We are looking for someone who can think like both a developer and a security auditor, while helping transform a rapidly growing platform into a production-ready product.