~/john.mann
profile.tsx
const developer = "John Mann";
Building AI systems, internal tools, and revenue-driving platforms

I build AI systems and growth platformsthat create real business leverage.

Full-stack engineer focused on shipping useful software, from AI-assisted internal tooling to marketing platforms, analytics systems, and SaaS products that teams actually depend on.

// |
Files shipped
2,200+

Production TypeScript files across internal platforms, SaaS products, and marketing systems.

Client companies supported
100+

Multi-tenant tooling built to support real agency operations, reporting, and execution.

Integrations delivered
15+

Google Ads, Meta Ads, GA4, Search Console, Stripe, AI providers, and more.

Build ownership
0→1

Comfortable owning product strategy, architecture, implementation, and launch end to end.

projects--listready

> Featured Projects

// Selected work focused on product ownership, business outcomes, and production-grade engineering

blackhawk-ai.tsxproduction

Blackhawk AI

An AI-powered agency operating system for CRM, contracts, task execution, reporting, SEO, and executive visibility across 100+ client accounts.

Client accounts supported
100+
API routes shipped
436
Platform integrations
15+
case-study summary

Challenge: Agency teams were juggling fragmented tools for CRM, analytics, task management, SEO, and client delivery, which created operational drag and weak executive visibility.

Solution: I designed and built a unified platform that brings client ops, reporting, AI workflows, and marketing tooling into one multi-tenant system with strong access control and automation.

Impact: The result is a central operating layer that supports day-to-day execution, strategic reporting, and scalable service delivery for a real agency business.

128 Pages
461 Components
436 API Routes
15+ Integrations
Next.js 16React 19SupabaseTailwindReact QueryInngestAnthropicOpenAIGoogle APIsSentryResendStripe
adpacer-ai.tsxproduction

AdPacer AI

A solo-built SaaS platform for ad budget pacing and forecasting, with Stripe billing, Google Ads OAuth, multi-org architecture, and a polished conversion-focused frontend.

Built solo
100%
API routes shipped
61
Organizations supported
Multi-org
case-study summary

Challenge: Marketing teams needed a faster way to spot pacing problems before budgets drifted off target, without relying on manual spreadsheet checks and delayed reporting.

Solution: I built a focused SaaS product that connects directly to Google Ads, forecasts spend trajectory, and wraps the full product in self-serve billing and multi-org account management.

Impact: It demonstrates full-stack product ownership, from go-to-market landing page and onboarding flow to the core forecasting experience and billing engine.

30 Pages
38 Components
61 API Routes
100% Built Solo
Next.js 15React 19SupabaseStripeFramer MotionGSAPGoogle Ads APIAnthropicOpenAIRecharts
skills.json8 categories

> Browse by Category

// Click any category to explore skills in detail

ABOUT.md

About Me

I'm a full-stack engineer who likes building products that sit close to the business, especially where AI, marketing systems, analytics, and internal operations overlap.

That means I'm not just writing isolated features. I'm usually thinking about system design, user workflows, data quality, reporting, onboarding, and whether the thing actually makes the team faster or the company stronger.

My best work tends to live in the messy middle where product strategy, engineering, and operations all matter. I'm comfortable taking an idea from rough concept to production and tightening it until it feels like a real product instead of a prototype.

[INFO] Looking for ambitious teams, consulting work, or product builds where technical depth and business context both matter.
// How I can help

AI product development

Design and ship AI-powered products with real workflows, guardrails, and business outcomes.

Internal tools & ops systems

Replace spreadsheets and manual work with custom platforms for teams, reporting, and execution.

Marketing & analytics platforms

Build systems around ads, SEO, attribution, and client reporting with API-level integrations.

Full-stack product leadership

Move from idea to production quickly, with strong UX, technical judgment, and business context.

contact.shexecutable

> Let's Build Something Useful

If you need someone who can think through product strategy, own implementation, and ship polished software fast, let's talk. I'm especially interested in AI products, internal tools, and marketing systems with real business stakes.

email --john