Senior Front-End Developer (Svelte/SvelteKit) Job at American Unit, Inc., Seattle, WA

  • American Unit, Inc.
  • Seattle, WA

Job Description

Job Title: Senior Front-End Developer (Svelte/SvelteKit)

Location: USA Seattle 1401 NW 46th St

The ideal candidate brings deep expertise in Svelte/SvelteKit, Sanity CMS, modern JavaScript frameworks, API integrations, and Agile software delivery. You will work closely with architects, product owners, UX teams, and platform engineers to deliver high-performance customer-facing experiences at enterprise scale.

Responsibilities

  • Design and develop responsive, scalable, and high-performing web applications using Svelte and SvelteKit.

  • Build and maintain content-driven experiences utilizing Sanity CMS and headless architecture principles.

  • Collaborate with Product, UX, and Architecture teams to implement customer-facing features and enhancements.

  • Develop reusable UI components, design system integrations, and front-end frameworks.

  • Integrate with internal and external APIs, microservices, authentication platforms, and customer data services.

  • Drive code quality through peer reviews, automated testing, CI/CD pipelines, and engineering best practices.

  • Optimize application performance, accessibility, SEO, security, and scalability.

  • Participate in Agile ceremonies including sprint planning, backlog refinement, design reviews, and retrospectives.

  • Mentor junior developers and contribute to engineering standards and technical decision-making.

  • Support production deployments, troubleshooting, and continuous improvement initiatives.

  • Work closely with platform and DevOps teams to ensure reliable delivery through automated deployment pipelines.

Qualifications

  • 7+ years of software development experience.

  • 3+ years of modern JavaScript application development.

  • Strong experience with:SvelteSvelteKitTypeScriptHTML5, CSS3, and SCSSREST APIs and GraphQLGit and modern source control practices

  • Hands-on experience with:Sanity CMSHeadless CMS architecturesComponent-based UI developmentResponsive web designClient-side performance optimization

  • Experience building applications deployed in cloud environments, such as AWS, Azure, or GCP.

  • Familiarity with CI/CD pipelines and DevOps practices.

  • Strong knowledge of web accessibility, WCAG, and SEO best practices.

  • Test-driven and quality-focused development approach.

  • Experience with automated testing frameworks such as Playwright, Cypress, Jest, or Vitest.

  • Experience operating in Agile/Scrum teams.

  • Strong debugging and performance tuning capabilities.

Preferred Qualifications

  • Experience supporting large-scale consumer digital platforms.

  • Telecommunications or eCommerce industry experience.

  • Experience migrating from traditional CMS platforms to headless architectures.

  • Knowledge of Adobe Experience Manager, AEM, migration strategies.

  • Experience with Design Systems and reusable component libraries.

  • Familiarity with AI-assisted development tools such as GitHub Copilot or Cursor.

  • Cloud-native application architecture experience.

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