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KJLet’s talk

KJ Magill / Developer & founder

Cape May, New Jersey

Good ideas.
Built to work.

I build thoughtful software for real-world problems. From a business’s first website to products that work in the field and on-chain.

Explore my work Let’s talk
Independent thinking. End-to-end building.Web / Mobile / On-chain

01 / Selected work

Ideas into outcomes.

Independent products, collaborative builds, and better tools for everyday business.

01 / Product

Compbook

Digital sports-card comps and market estimates.

02 / Protocol

Contrax dApp

Auto-compounding vaults and DeFi tools on Arbitrum.

03 / App

Care For Life

Offline-first Android app for nonprofit field operations in Africa.

More from the workbench

GitHub
CanToCurbRedesign and online scheduling for a local trash & recycling valet service.Website (opens in a new tab)Back Bay RentalsOnline booking and scheduling for local LSV rentals.Website (opens in a new tab)Golden PaverLocal service-business marketing website and lead capture.Website (opens in a new tab)HornlessHorseAIAn AI platform built around radical transparency.Product (opens in a new tab)Tom Magill ConstructionMarketing site for a custom home builder and remodeler.Website (opens in a new tab)Todesko BookkeepingA clear, professional web presence for a bookkeeping studio.Website (opens in a new tab)

02 / A little context

A developer’s craft.
A founder’s mindset.

KJ Magill Based in New Jersey. Building beyond it.

I’m KJ, a full-stack developer who enjoys taking an idea all the way to something people can use.

I founded Flowstate Labs and Cape May Web Design, and co-founded Contrax, a DeFi protocol on Arbitrum. My work spans fintech, ecommerce, mobile apps, and the businesses in my own community.

I care about maintainable code, considered interfaces, and understanding the business behind the build. I’ve worked across remote, freelance, and founding teams — taking responsibility for both the details and the bigger picture.

Away from the keyboard: the gym, a basketball court, or somewhere I haven’t been before.

Connect on LinkedIn

03 / What I bring

Built with the whole picture in mind.

/01

Interfaces that feel right.

Responsive websites and mobile experiences with a focus on clarity, performance, and the people using them.

  • React
  • Next.js
  • React Native
  • TypeScript
/02

Solid beneath the surface.

APIs, databases, and smart contracts that turn a polished interface into a useful, working product.

  • Node.js
  • Python
  • SQL
  • Solidity
  • Rust
/03

Ownership from day one.

A hands-on partner from the first conversation through launch, bringing technical decisions and business goals together.

  • Product thinking
  • Technical leadership
  • Collaboration

Have something in mind?

Let’s build
something good.

A project, a role, or a conversation.
I’m open to the right next thing.

Get in touch