P1John Mann · dev mode
Co-founding engineer of Blackhawk AI, the operating system behind a 17‑person marketing agency, and solo builder of AdPacer AI. Pick a project to open its architecture, decisions and stack.
01Level select
Two products I built end to end, and a prototype tool for running a fleet of AI coding agents. Open a level to explore its architecture, the engineering decisions behind it, and the full case study.
Level 01
In productionCo-founding engineer · builds and runs it day to day
An AI-powered agency operating system for CRM, contracts, task execution, reporting, SEO and executive visibility, built as one multi-tenant platform.
Map preview
Level 02
OfflineSolo build · concept, product, design, code and billing
A SaaS product that connects to Google Ads, forecasts spend trajectory, and flags campaigns drifting off budget, wrapped in self-serve Stripe billing and multi-org accounts.
around it:Stripe billingMulti-org accounts
Validated with real users in a free-access beta. Currently offline and not accepting new signups.
Level 03
Prototype · WIPPersonal tool · design and build · in progress
A terminal command center that keeps a fleet of parallel AI coding agents in view: every worktree, the task it serves, who is working in it, and where the task board and the code disagree.
Bonus
Concept
A trusted marketplace for adaptable AI skills, not just static prompt packs.
02Inventory
Eight categories, each with the tools I use and where I used them. Select a slot to open it.
Slot 01
Building performant, accessible, and visually polished user interfaces with modern React patterns and animation libraries.
Next.js
App Router, server components, ISR, streaming, middleware, used as the primary framework on both Blackhawk AI and AdPacer AI.
React 19
Server components, Suspense boundaries, useTransition, composition patterns. 460+ components across Blackhawk AI.
Tailwind CSS
Utility-first styling with design tokens, dark mode, and responsive patterns across every project.
shadcn/ui
Radix-based component primitives customized with project-specific design tokens and compound component patterns.
Framer Motion
Scroll-triggered animations, page transitions, and layout animation systems used across the portfolio and product work.
GSAP
Complex timeline animations, smooth scroll with Lenis, and advanced landing page motion work in AdPacer AI.
TipTap
Rich text editing with bubble menus, mentions, tables, and media support for content workflows.
Recharts
Data visualization for analytics dashboards, funnels, and KPI surfaces across marketing systems.
03Continue?
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.
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.
Looking for ambitious teams, consulting work, or product builds where technical depth and business context both matter.
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.