I build the software
your business runs on.
I’m Ken Key — a Long Island software engineer, web & app developer, designer, and SEO specialist, and the founder of KeyInventions. I design, build, and rank digital products that quietly do their job, year after year.
I’d rather build tools that change people’s lives — and leave the world a little better than I found it.
Six disciplines, one standard.
Most projects need more than one skill set. I bring development, design, search, engineering, mobile apps, and AI under one roof — so the pieces actually fit together.
Web Development
Fast, accessible, hand-built websites and web apps — no bloated page builders, no template you’ll outgrow. Built to load quickly, stay secure, and last.
Web Design
Interfaces with restraint. Clear hierarchy, real typography, and a calm visual voice that makes your business look as capable as it is.
Search & SEO
Technical SEO, structured data, Core Web Vitals, and content that earns rankings honestly — the same approach that keeps my own pages on page one.
Software Engineering
Full products, platforms, and WordPress plugins — from a single tool to the systems behind KeyInventions. Architecture that holds up as you grow.
App Development
Native-quality iOS and Android apps from one codebase — designed, built, and shipped to the App Store and Google Play by one engineer.
AI Development
Practical AI built into real products — LLM integrations, assistants, and automations that save real hours, with none of the hype.
A few things I’ve built.
Not a portfolio of everything — just the work that says the most about how I think.
KeyInventions
The company I founded to build honest software alternatives in markets the incumbents made expensive or opaque — across payments, marketplaces, legal, fitness, and more. My deepest engineering lives here.
Lead Marketing Strategies
My Long Island marketing agency — so when a project needs growth as well as engineering, strategy, build, and marketing can come from one place.
WordPress Plugins
Five plugins published on WordPress.org, running on hundreds of live sites — small, focused tools for Advanced Custom Fields, WooCommerce, and Contact Form 7. Each does one thing without bloat.
A few things I hold to.
Make it fast.
Speed is respect — for the visitor’s time and the machine’s. A fast site is the most honest kind of polish, and the foundation of every ranking.
Make it simple.
I’d rather make a hard thing feel obvious than make a simple thing look clever. The best software disappears into the work it does.
SEO is just being useful.
Rankings aren’t tricks. They’re what happens when a page is fast, well-structured, and genuinely the best answer to a real question.
Build it to last.
No bloat, no lock-in, no template you’ll outgrow. Something documented and maintainable that still works in five years.
I founded KeyInventions to build the products I wished existed.
KeyInventions is a software company building honest alternatives in markets where the incumbents got expensive, opaque, or extractive — across payments, marketplaces, legal, fitness, and more. It’s where my engineering goes deepest.
Need marketing as well as engineering? I also run Lead Marketing Strategies, my Long Island marketing agency — so strategy, build, and growth can come from one place.
A job board for Long Island’s computer nerds.
I built a small, curated board for the people who build the web on Long Island. It’s hand-reviewed, refreshed daily, and free of the noise of the big job sites — local-first, remote-friendly.
Notes on building for the web.
Developed By Ken Key
Ken Key Swift App Development Roadmap for New York 2026
Building Mobile Experiences That Actually Work for Your BusinessYour business relies on connecting with people exactly where they spend their time. Many… Read
Swift
Comparing Swift and React for New York Mobile Projects
Choosing the right mobile path for your business is the most important decision you will make before writing a single line of… Read
Development Tips
Essential Development Tips for Long Island Freelancers
Freelancing in the New York market requires more than just raw coding ability. As a long island web developer, you realize that… ReadThree ways to work together.
No generic contact form. Pick the path that fits and I’ll ask the right questions — so my reply actually helps.
Build with me
You’re a developer who wants to collaborate on a project or contribute to KeyInventions.
Hire me to build it
You have a website, app, or software project and need it built right — by one accountable engineer.
Partner or invest
You want to back KeyInventions, partner on a venture, or fund a new idea worth building.