Staff Frontend Engineer – Visual Workflow Canvas (React Flow)

Introduction

This role is for a Senior Frontend Engineer who will be the technical lead for a custom-built visual authoring environment aimed at designing, validating, and versioning Medicare claims processing workflows without the need for Python. The canvas is an editor that produces JSON/YAML workflow configs stored in Git and executed by Temporal workers on Google Kubernetes Engine (GKE). The primary technologies used in this role include React, TypeScript, Vite, and React Flow.

Responsibilities

• Own the architecture of the React Flow authoring canvas, including node and edge model, property-panel pipeline, validation rules, and integration with the FastAPI canvas backend.
• Define and lead decisions on node library architecture, property panels generated from schemas, state management, data fetching, and module boundaries.
• Drive performance and quality on large workflows, including viewport virtualization, selective re-rendering, bundle optimization, and visual regression testing.
• Enforce engineering standards such as TypeScript strictness, testing patterns, accessibility, and design system usage.
• Collaborate with the Temporal platform team on the workflow config schema and versioning strategy.
• Mentor and lead design and code reviews for other frontend engineers.

Requirements

Required Qualifications

• Multiple years of experience as a frontend or full-stack engineer, with a focus on React.
• Expertise in React, TypeScript, and modern build tooling.
• Hands-on experience building complex graph or canvas-based UIs.
• Strong understanding of state management, data fetching/caching, and runtime schema validation.
• Experience designing component libraries and developer-facing tooling.
• Understanding of accessibility, browser performance, and rendering optimization.
• Advanced troubleshooting skills and experience with frontend build pipelines.
• Experience collaborating with backend, platform, security, and design teams.

Preferred Qualifications

• Production experience with React Flow on non-trivial graphs.
• Experience with schema codegen pipelines and contract-driven UI generation.
• Familiarity with workflow/automation domains and authoring UX patterns.
• Experience with Python/FastAPI/Pydantic.
• Familiarity with cloud-native deployment and CI/CD for frontend applications.
• Healthcare, regulated industry, or large enterprise experience.