Circuit · 16 hours ago
Principal Frontend Engineer
Austin, TX
Full-time
Onsite
Senior Level, Lead/Staff
7+ years expCircuit is building the world's first manufacturing-focused AI knowledge and workflow platform. They are seeking a Principal Frontend Engineer to shape the user experience of their core product and set the technical foundation for frontend architecture as they scale.
AnalyticsBig DataData IntegrationSaaS
Responsibilities
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
Qualification
Required
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
Preferred
Comfortable working across the full stack when needed—familiarity with backend concepts, databases, and API development is a plus
Working knowledge of Go and experience with Go, Docker, Kubernetes and cloud platforms (AWS, GCP, Azure) is a plus
Familiarity with AWS Cognito for authentication and identity management is a strong plus
Benefits
Competitive compensation, meaningful equity, and employer-paid benefits
Flexible PTO and access to the latest AI tools
Company
Circuit
Circuit is building the world’s first company-centric knowledge network.
11-50 employees
H1B Sponsorship
Circuit has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2024 (3)
2023 (2)
2022 (1)
2021 (3)
Funding
Current Stage
Early StageTotal Funding
$23.62MKey Investors
Drive CapitalSeraph Group
2023-01-01Series A
2021-01-13Series A· $17.62M
2019-08-22Seed· $6M
Leadership Team
Higinio Maycotte
Chief Executive Officer
Sarah King
Chief Operating Officer
Company data provided by crunchbase