Ryan Reiss

Full-Stack Developer & Consultant

Self-Employed · March 2021 – Present · Chicago Area

Delivered full-stack development services to startups and established businesses across e-commerce, social media, real estate, and Web3 domains. Managed client relationships, scoped projects, and owned technical execution from architecture to production deployment.

Recent Client Projects (2024–2026)

• attn.live · Creator Social Platform Rebuild

  Dec 2025 – Present

  Next.js 16, React 19, TypeScript, Supabase, Node.js, Stripe

  • Inherited a limited SQLite-based platform as sole developer. Designed and executed a zero-downtime migration to Supabase PostgreSQL across 27 production tables, handling type conversions and constraint remapping.
  • Rebuilt 100+ REST API endpoints and the entire frontend from scratch in Next.js 16 / React 19. Implemented real-time messaging, creator monetization, and AI generation integrations.
  • Integrated Stripe subscription billing with webhook lifecycle management, complex row-level security authorization patterns, and real-time notifications — the creator token economy is now live.
  • Deployed on Vercel with automated CI/CD. Currently handling live production traffic with thousands of active users and sustained revenue.

• Lake Park High School Class of 2006 Reunion Platform

  Mar 2026 – Present

  Next.js 15, React 19, TypeScript, Stripe Connect, PostgreSQL

  • Full-stack event ticketing + social platform: an Eventbrite clone with a social layer, RBAC (user / moderator / admin / super_admin), a moderation dashboard, and an algorithmic feed.
  • Stripe Connect integration for organizer payouts — keeps the platform out of money-transmitter liability while allowing organizers to own chargebacks.
  • 25-table data architecture with row-level security enforcing authorization at the database layer (defense-in-depth against UI bugs leaking data).
  • QR check-in system for event management, plus real-time moderation and analytics.

• Node.js API Modernization

  Oct 2025 – Jan 2026

  React 19, Node.js, Express, PostgreSQL

  • Rebuilt a React application's backend from scratch using Node.js and Drizzle ORM, replacing an unstable architecture with a production-grade API.
  • Continued as an ongoing consultant. Added a rate-limited, customer-accessible API with a public/private key pair authentication system.

• x402 Protocol · Stablecoin Payment Infrastructure for Agents

  Sep – Oct 2025

  Next.js 15, React 19, TypeScript, Solidity, Base L2, Coinbase CDP

  • Built a gasless USDC payment flow using the x402 protocol (Coinbase's HTTP 402 Payment Required standard) for serverless/agent transactions — the buyer signs a single EIP-3009 authorization and the server settles via the Coinbase CDP facilitator with zero user friction.
  • On-chain settlement: a smart contract executes transactions on Base L2, ensuring immutable payment records and atomic settlement without requiring users to manage wallets or gas.
  • Coinbase CDP integration for custodial wallet management, enabling non-crypto-native users to transact with stablecoins seamlessly.
  • Defense-in-depth rate limiting and idempotent request handling — production-grade payment infrastructure resilient to network failures and duplicate requests.

• Multi-Tenant Learning Platform

  Sep – Dec 2025

  Next.js, React 19, TypeScript, Supabase, PostgreSQL, Stripe

  • Built a multi-tenant SaaS application for an educational client: course management, student enrollment, progress tracking, and Stripe payment integration — all within a single codebase serving multiple organizations.
  • Designed and implemented a tenant isolation strategy ensuring secure data separation across customer organizations using Supabase row-level security (RLS) and schema partitioning.
  • Production SaaS handling multiple paying customers with complex access control and data privacy requirements.

• DBDFF · Fantasy Football Blockchain Platform

  Dec 2023 – Dec 2025

  Next.js, React, TypeScript, Solidity, Blockchain-Weighted Scoring

  • Built a Next.js application solving the 'fair scoring in fantasy leagues' problem using blockchain-weighted algorithms for transparent, tamper-proof league scoring.
  • Implemented server actions for automated score calculation and real-time leaderboard management. Added multi-season support, a playoffs system, and complex league administration logic.
  • Maintained a 2-year consultancy relationship with sustained revenue. Handled ongoing feature requests, debugging, and platform evolution based on user feedback.

Earlier Projects (2021–2024)

• Zentaurios · Multi-Tenant Blogging & Social Media Automation Platform

  Mar 2022 – Jun 2024

  Next.js 13 Pages Router, MERN, Zapier, MongoDB

  • Built a multi-tenant creator platform solving the 'manual cross-posting' problem: creators publish once to their workspace and content auto-distributes across X, LinkedIn, and other platforms via Zapier automation.
  • Customizable user profiles, blog publishing, and blockchain-based subscriptions — a MERN stack demonstrating full-stack capability across frontend, API, and NoSQL data modeling.
  • Achieved thousands of SEO-indexed pages on Google through technical optimization and content strategy. Sustained 2-year operation managing real creator workflows and platform stability.