Web App Development

With an emphasis on sustainability, performance, and user experience, we architect, develop and optimize clean JavaScript and TypeScript applications, leveraging modern tools and frameworks including React, Angular and Dojo.

Web App Development

Our team is your team

Complete tech migrations, creating minimum viable products and extending the expertise and skill of established development teams is why our customers rely on our team for ongoing and brand new development initiatives.

Solid foundations

We design and create source code that is easily testable, highly maintainable and resilient against changing business requirements. We encourage developer best practices that promote solid architecture and ease of maintenance.

Whether you're looking to fix an existing app or build the next generation of your platform, we provide recommendations to help find the right architecture for you.

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Any Stack

Solution Expertise

Trusted by the Enterprise

About SitePen

Modernizing Apps, Tools & Teams

SitePen pioneered Enterprise JavaScript by creating a first-of-its-kind open source JavaScript framework that scales and sustains some of the world’s largest web applications - and this before the advent of the modern browser. Today, we continue to engineer performance-driven apps for companies like IBM, Intuit & Marriott, maintaining our foothold at the forefront of the modern web. Expect our deliverables to contain experience-based solutions, the highest quality code, and a demonstrated commitment to your success.

See our work