Developed Ghostpen, an AI-powered SaaS by Gleb MarjinDeveloped Ghostpen, an AI-powered SaaS by Gleb Marjin

Developed Ghostpen, an AI-powered SaaS

Gleb Marjin

Gleb Marjin

Developed Ghostpen, an AI-powered SaaS for marketing automation. Built with Next.js and TypeScript, it features a robust backend integrated with Supabase for secure data management and RLS. I implemented a complex payment architecture using Paddle, including server-side transaction logic for promotional offers ($1 trial). Key technical achievements: architected a secure environment for API keys, resolved critical auth-callback issues, and integrated LLMs for content generation. A production-ready solution focused on security, scalability, and seamless UX.
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Posted Mar 13, 2026

Developed Ghostpen, an AI-powered SaaS for marketing automation. Built with Next.js and TypeScript, it features a robust backend integrated with Supabase for...