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Rosary Software

Services

What we build

Three disciplines, one engineering standard: scoped in the open, shipped in weekly increments, and supported long after launch.

Commerce platforms & SaaS

From storefront rebuilds (weeks) to full platforms (quarters).

Next.jsShopify HydrogenGoPostgreSQLKubernetes

Standard themes cap what a store can become. We build commerce that is unmistakably yours: headless Shopify storefronts on Hydrogen or Next.js when the platform fits, and fully independent ecommerce platforms when it doesn’t - engineered for conversion, SEO, and traffic spikes from day one.

  • Headless Shopify storefronts (Hydrogen / Next.js)
  • Custom ecommerce platforms beyond templated limits
  • Commerce SaaS: subscriptions, multi-vendor, dashboards
  • Performance and SEO engineering, measured against Core Web Vitals
Discuss a commerce project

Fintech & enterprise systems

Long-running partnerships with staged, auditable delivery.

GoTypeScriptPostgreSQLKubernetesDocker

Systems that move money or run a company have one requirement above all: being right, provably, every time. We design and build fintech services and custom enterprise software with the auditability, access control, and observability that regulated work demands - and we apply the same rigor to the AI and ML capabilities we integrate into them.

  • Payment flows, ledgers, and reconciliation services
  • Custom enterprise platforms: operations, delivery, internal tools
  • Corporate dashboards and reporting with real-time data
  • Applied AI/ML: automation, personalization, and decision support
Discuss a fintech project

Mobile apps

Design-led builds, typically 6-16 weeks to first release.

SwiftKotlinReactTypeScript

Mobile is where your customers actually live. We build Android and iOS applications designed UX-first, integrated cleanly with your existing systems - and mobile-focused web applications (PWA) when installability and reach matter more than store presence.

  • Native-quality Android and iOS applications
  • Mobile-first web applications and PWAs
  • Deep integration with your existing backends and auth
  • Store delivery, crash reporting, and release discipline
Discuss a mobile project

Not sure which fits?

Describe the problem - we’ll tell you honestly what we’d build, and whether we’re the right team for it.

Start a project