Circuit

Principal Frontend Engineer

Circuit

full-time

Posted on:

Location Type: Remote

Location: Texas • United States

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Job Level

Lead

Tech Stack

DockerLinuxReactTypeScript

About the role

  • Design, build, and maintain core user-facing features in Circuit’s web application.
  • Translate product requirements and design direction into polished, responsive, and accessible UI.
  • Contribute to frontend architecture, patterns, and technical decisions in collaboration with engineering peers.
  • Own features end-to-end, from implementation through testing, QA, and production release.
  • Write and maintain unit, integration, and end-to-end tests to ensure long-term reliability.
  • Participate actively in technical discussions, design reviews, and planning sessions.
  • Provide thoughtful code reviews and mentorship to support team-wide quality and growth.
  • Collaborate closely with Product and Design to clarify requirements, surface tradeoffs, and improve UX.
  • Identify and drive incremental improvements to performance, accessibility, developer experience, and frontend tooling.
  • Manage individual priorities and deadlines while maintaining a high standard of execution.

Requirements

  • 7+ years of professional frontend or full-stack engineering experience building and shipping production web applications.
  • Proven experience operating as a staff or principal-level individual contributor within a collaborative engineering team.
  • Experience collaborating closely with Product and Design partners to iterate on UX and balance technical and product tradeoffs.
  • Demonstrated ability to take loosely defined product requirements and turn them into high-quality, production-ready solutions.
  • A track record of improving code quality, developer experience, or frontend practices through example and influence rather than authority.
  • Comfort operating in ambiguous, fast-moving environments and managing individual priorities without heavy process or oversight.
  • Experience working with performance, reliability, and maintainability concerns in large or evolving frontend codebases.
  • Advanced proficiency in TypeScript, React, HTML, and CSS, with a track record of building complex, user-facing features.
  • Strong proficiency with CSS Modules and component-scoped styling approaches.
  • Experience with modern state management patterns using React Query for server state and Zustand for client state.
  • Strong experience designing and implementing responsive, accessible interfaces that follow modern UX and accessibility standards.
  • Experience with monorepo tooling and workflows (Turborepo, Nx, or similar) and managing dependencies across multiple frontend packages.
  • Hands-on experience writing and maintaining unit, integration, and end-to-end tests (e.g., Playwright, Vitest, React Testing Library).
  • Experience building and consuming RESTful APIs, with understanding of API design best practices and error handling patterns.
  • Hands-on experience with CI/CD pipelines, GitHub Actions, and deployment automation.
  • Experience with Docker, infrastructure tooling, and DevOps practices is highly valued.
  • Familiarity with modern development workflows and tooling, including Git, Linux-based environments, and containers.
Benefits
  • High-caliber founding team of seasoned manufacturing and AI leaders
  • Build the technical backbone of our GTM motion and influence the product at an early stage
  • Partner directly with the CPO, CTO, and Sales leadership
  • Help create a category-defining platform transforming how manufacturers sell, support, and innovate
  • Competitive compensation, meaningful equity, and employer-paid benefits
  • Flexible PTO and access to the latest AI tools
  • A values-driven culture that rewards ownership, curiosity, and velocity
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
TypeScriptReactHTMLCSSCSS ModulesReact QueryZustandRESTful APIsunit testingCI/CD
Soft Skills
collaborationmentorshipcode reviewsproblem-solvingtime managementadaptabilitycommunicationtechnical discussionsdesign reviewsplanning