About
A US engineering studio with a focused mission.
Capoejoy is the engineering brand of Silverline Partners LLC. We're a small, senior team headquartered in Calabasas, California, building software and SaaS products for clients across the country.
Legal entity
Silverline Partners LLC
Headquarters
5000 Parkway Calabasas, Calabasas, CA 91302
Founder
Daniel Nealon Kerrigan
Focus
Custom software & SaaS engineering
Our story
Silverline Partners LLC was founded by Daniel Nealon Kerrigan with a simple conviction: small, senior teams ship better software than large ones. We started by helping a handful of US businesses turn ambitious ideas into reliable products — and we've stayed deliberately small ever since.
Today, we operate as Capoejoy — the customer-facing name for our custom software and SaaS engineering practice. Our clients range from early-stage founders shipping their first MVP to established businesses modernizing internal platforms.
We work primarily with companies in the United States. We operate transparently, write code our successors will thank us for, and treat every project like our own.
What we value
Senior engineering, always
Every project is delivered by senior engineers. No bait-and-switch staffing, no junior-only teams.
You own what we build
Source code, accounts, and infrastructure are yours from day one. We don't believe in lock-in.
Honest, weekly cadence
Weekly demos, transparent status, and clear scope. No silent weeks, no surprise invoices.
Built in the United States
A registered California LLC with a real US address and accountable point of contact.
Let's talk about your project.
Send us a short note and we'll come back within one business day.