Full-Stack Developer

I build modern web applications and browser-based utilities with a focus on performance, privacy, and developer experience. My work spans SaaS platforms, headless CMS implementations, and self-contained browser tools that respect user privacy.

Strong advocate for open source software, supporting the GNU Project, Tor Project, and the biohacking movement. Committed to digital freedom, privacy, and decentralized technologies.

Technical Focus

Application Architecture

  • Next.js 15 with App Router and React Server Components
  • TypeScript strict mode across all projects
  • Supabase (PostgreSQL + Auth + Row Level Security)
  • Headless CMS with Payload CMS
  • Comprehensive testing (Vitest, Playwright, pgTAP)

AI & Automation

  • LLM integration (Groq API, Claude Code)
  • MCP (Model Context Protocol) server development
  • Workflow automation (eBay photo organization, data processing)
  • AI-powered insights and content generation

Payment & Subscription Systems

  • Stripe integration and Sync Engine implementation
  • Multi-tier subscription management
  • Usage-based billing and promo codes
  • Feature gating and access control

Privacy-First Browser Utilities

  • Self-contained HTML/CSS/JavaScript tools
  • No build tools, no tracking, no data collection
  • Offline-capable with CDN-only dependencies
  • Mobile-responsive and accessible

Notable Projects

Connective Sports - GPS performance analytics platform eliminating 20+ hours of weekly manual data entry for professional sports teams. Features automated STATSports data ingestion, AI-powered training insights, and real-time performance dashboards.

NCRA - National college recruitment platform serving student-athletes with role-based access control, multi-stakeholder communication, and comprehensive subscription management. 948 commits representing the most active development project.

FullStackTechNYC - Technical content management platform built on Payload CMS with MDX integration, advanced rich text editing, and component-based content composition.

Browser Utilities Collection - Privacy-respecting tools including contact scrapers, M3U playlist editors, browser fingerprint analyzers, and markdown-to-PDF converters. All self-contained with no external dependencies or tracking.

Development Philosophy

Modern Tooling

  • Bun for package management and build performance
  • Tailwind CSS v4 with custom design systems
  • shadcn/ui component library
  • ESLint 9.0 + Prettier for code quality

Quality & Testing

  • Test-driven development with comprehensive coverage
  • Database testing with pgTAP
  • End-to-end testing with Playwright
  • Pre-commit hooks for quality gates

Privacy & Performance

  • Zero tracking or analytics on personal projects
  • Optimized bundle sizes and lazy loading
  • Lighthouse scores >90 for all utilities
  • Offline-first architecture when applicable

Tech Stack Summary

Frontend: Next.js 15, React 19, TypeScript, Tailwind CSS v4, shadcn/ui, Radix UI

Backend: Supabase, PostgreSQL, Server Actions, Stripe Sync Engine, Mailgun

AI/ML: Groq API (LLaMA-3-70B), Model Context Protocol, AI SDK

Testing: Vitest, Playwright, pgTAP, Husky pre-commit hooks

DevOps: Vercel, GitHub Actions, Bun, Docker

CMS: Payload CMS 3.0, Lexical rich text editor, MDX

Open Source & Community

Active contributor to the Claude Code ecosystem, building MCP servers for workflow automation and developing custom hooks for enhanced developer productivity. Passionate about creating tools that save time and respect privacy.

Current Location: Based in the US GitHub: @jbwashington Focus: Building privacy-first tools and high-performance SaaS platforms