ABOUT

Jeff Cadet

I'm a full-stack developer who builds production software end-to-end. Not prototypes. Not demos. Real products used by real people, running in production, processing millions of records.

My main project is TradeProof — a SaaS platform that verifies contractor compliance across all 50 US states. I built the entire stack solo: data integrations, REST API, billing system, security infrastructure, and deployment pipeline.

I also build for clients and communities — from fashion e-commerce to civic platforms for the Haitian diaspora. And I teach the next generation of IT professionals as a CompTIA A+ instructor.

Fluent in English, French, Haitian Creole, and Spanish — which is why I build multilingual products by default, not as an afterthought.

How I Work

Ship, then iterate

I'd rather launch something imperfect and improve it based on real feedback than spend months polishing in a vacuum. Every project I build is live and serving users.

Own the full stack

I don't hand off. Database schema, API design, frontend UI, deployment pipeline, security audit — I build and maintain the entire system. This means fewer integration bugs and faster iteration.

Security is not optional

TradeProof went through a 130-finding security audit before taking its first dollar. I pin dependencies, validate inputs, rotate secrets, and assume every boundary is hostile.

Build for the underserved

The Haitian diaspora has no comprehensive web portal. Small contractors can't easily verify licenses. Beauty professionals struggle with online presence. I build for the gaps others ignore.

Experience

2025 — Present

Founder & Lead Developer

TradeProof

Building a compliance SaaS platform from zero to production. Architected the full stack: FastAPI backend, PostgreSQL with 3.6M+ records, data aggregation from 180+ state licensing agencies, Stripe billing with tiered pricing, and blue/green Docker deployments on GCP. Led a security audit that identified and remediated 130 findings.

All 50 states covered3.6M+ records indexed130 security findings remediatedZero-downtime deployments

Mar 2026 — Present

A+ Certification Instructor

Goodwill Industries

Teaching CompTIA A+ certification courses (220-1201/1202) to career changers. Developed custom curriculum with hands-on labs, scenario cards, and adaptive assessments. Two daily batches of 18-25 students, Mon-Thu. Full-circle — I completed this exact program at this same location 4 months before being hired to teach it.

36-50 students per day15-week program × 2 cohortsCustom lab environmentsStudent → Instructor pipeline

2024 — Present

Freelance Developer

Independent

Building websites and web applications for clients across industries — from haute couture fashion (Maison Saint Louis) to beauty services (Sarah Beauty) to civic platforms (Ayiti Sitwayen). Focus on Next.js, performance optimization, and delivering production-ready code.

5+ client projects shippedE-commerce, SaaS, civic techTrilingual applicationsSEO-first architecture

Technical Skills

Languages

PythonTypeScriptJavaScriptRustSQLHTML/CSSBash

Frontend

ReactNext.jsTailwind CSSRiveFramer Motionshadcn/ui

Backend

FastAPINode.jsPostgreSQLSQLAlchemyPrismaREST APIsWebSockets

DevOps & Infra

DockerGCPVercelCloudflareGitHub ActionsNginxLinux

Security

Penetration TestingOWASP Top 10JWT/AuthRate LimitingInput ValidationDependency Auditing

Tools & Workflow

GitPlaywrightStripeResendObsidianClaude CodeFigma

Certifications

CompTIA A+ (220-1201/1202)

CompTIA

Verification ID: d97a4a959b4646b9a1b3206fa7fdffd2

Dec 2025

Want to work together?

I'm available for freelance projects, consulting, and full-time roles.

Get in Touch