# Stoneberg Design > Design-led Next.js studio helping teams modernize legacy sites with cohesive systems, accessibility, and performance. Stoneberg Design is a Seattle-based design and development studio that partners with organizations to transform outdated digital products into modern, accessible, high-performance experiences. We specialize in design systems, web accessibility, and performance optimization for teams modernizing legacy applications. ## About - [About Jared Stoneberg](https://stonebergdesign.com/about): Founder background, expertise, and philosophy - [Contact](https://stonebergdesign.com/contact): Schedule a consultation or get in touch ## Services - Design System Implementation and Modernization - WCAG 2.1 Accessibility Audits and Remediation - Core Web Vitals Optimization and Performance Tuning - Legacy Site and Application Modernization - Next.js and React Application Development - TypeScript and Modern Web Standards Consulting ## Portfolio & Case Studies - [Complete Portfolio](https://stonebergdesign.com/portfolio): Case studies showing design system implementations, CMS migrations, and accessibility transformations across higher education, nonprofits, and consumer brands ## Insights & Articles - [Blog](https://stonebergdesign.com/blog): Articles on Next.js, React, Tailwind CSS, design systems, accessibility, and web performance for teams building modern digital experiences ## Technical Stack - Next.js 15 with React 19 - TypeScript for type safety - Tailwind CSS v4 for responsive design - Accessibility-first component development - Web standards compliance (WCAG 2.1 AA)