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Rosary Software

Independent software studio · Delaware, USA

Software that runs commerce, money, and mobile.

We design, build, and run the systems companies depend on - storefronts, ledgers, and the apps around them.

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Rosary LLC · Since 2024 · Replies within one business day

What we build

What we build

  1. Commerce platforms & SaaSHeadless storefronts, custom ecommerce platforms, and the SaaS around them - built for scale, speed, and search.
  2. Fintech & enterprise systemsLedgers, payment flows, dashboards, and internal platforms where correctness and auditability are non-negotiable.
  3. Mobile appsAndroid and iOS applications with native-quality UX that extend your product to where your customers are.

Tooling we trust

  • TypeScript
  • Next.js
  • React
  • Go
  • PostgreSQL
  • Kubernetes
  • Docker
  • Traefik
  • Payload CMS
  • Shopify Hydrogen
  • Swift
  • Kotlin

How engagements run

The same four movements, sized to your project.

  1. Weeks 1-2

    Scope

    Constraints, risks, and success criteria - agreed in writing before we build.

  2. Weeks 2-4

    Design

    Architecture and interface proposals, reviewed with you until they hold up.

  3. Weekly increments

    Build

    Working software every week - code review, tests, and CI from the first commit.

  4. Ongoing

    Run

    Deployment, monitoring, and the follow-through. We stay after launch.

Our philosophy

Partnership philosophy

“We only take projects where both sides genuinely benefit. If we don’t believe the outcome will serve you, we’ll politely decline - even if you’re offering to pay.”
Read how we choose our work

Have a system in mind?

Tell us what you’re building - or what’s breaking.

Start a project[email protected]