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1 Full Stack Developer, 2 Python Django, 3 Payment Systems
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Experiencia laboral
Solo Founder & Developer
Ospyral • Trabajador autónomo
Sep 2024 - Feb 2026 • 1 yr 5 mos
Worldwide marketplace platform for selling creative and research work (art, writing, business plans, lessons, NFTs). Designed and built the entire product alone over ~1 year while learning to program. Built a custom crypto wallet and escrow payment system (OSP token, USDT, TON) with TonConnect wallet integration, quote expiration, and idempotent transaction handling to prevent double-charges. Implemented rate-limiting middleware with per-endpoint request limits and IP/user-based tracking to protect authentication, payment, and dispute endpoints from abuse. Built a device/IP/user-agent fingerprint banning system with automatic expiry and admin override. Developed a full admin/moderation panel for content review, finance monitoring, disputes, and withdrawal management. Added gamification (achievements, VIP tiers, gifts), a copyright certificate system for user content, and NSFW content moderation for artwork. Built companion Telegram bots for account security and quick profile access. Designed the front-end UI/UX, including animated backgrounds, interactive product cards, and a live-updating wallet sidebar.