Platform Engineer at Flux

<h2>Why Flux</h2><p style="min-height:1.5em">Flux is taking the hard out of hardware, by developing the first <strong>AI Hardware Engineer.</strong> Our goal is to democratize the ability to create bleeding edge hardware, and revolutionize how electronics are designed and built around the world.</p><h2>The Role</h2><p style="min-height:1.5em">Flux is building the world’s first AI Hardware Engineer, and that means everything around it has to just work.</p><p style="min-height:1.5em">As a Platform Engineer, you’ll work on the full-stack systems that power Flux’s platform experience beyond the editor: billing, authentication, onboarding, and integrations.</p><p style="min-height:1.5em">You’ll ship production features that touch every user, keep the lights on, and make it possible for Flux to scale.</p><p style="min-height:1.5em"></p><h2><strong>What You’ll Do</strong></h2><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Build and maintain user-facing platform features (billing, auth, onboarding, settings).</p></li><li><p style="min-height:1.5em">Integrate and maintain third-party APIs (Stripe, Firebase, analytics).</p></li><li><p style="min-height:1.5em">Write TypeScript/Node backend services and React frontend components.</p></li><li><p style="min-height:1.5em">Improve reliability and performance of core platform flows.</p></li><li><p style="min-height:1.5em">Implement observability, logging, and error-tracking standards.</p></li><li><p style="min-height:1.5em">Collaborate across teams to design APIs that support new products and integrations.</p></li><li><p style="min-height:1.5em">Document architecture and best practices for your domain.</p></li></ul><p style="min-height:1.5em"></p><h2><strong>What You’ll Bring</strong></h2><ul style="min-height:1.5em"><li><p style="min-height:1.5em">5+ years of professional software engineering experience.</p></li><li><p style="min-height:1.5em">Strong proficiency in TypeScript, Node.js, and React.</p></li><li><p style="min-height:1.5em">Experience integrating and maintaining 3rd party APIs.</p></li><li><p style="min-height:1.5em">Proven track record shipping production full-stack web apps.</p></li><li><p style="min-height:1.5em">Familiarity with cloud hosting (GCP/AWS/Firebase) and CI/CD basics.</p></li><li><p style="min-height:1.5em">Strong debugging and cross-system troubleshooting skills.</p></li><li><p style="min-height:1.5em">Excellent written and verbal communication; thrives in async, remote teams.</p></li></ul><p style="min-height:1.5em"></p><h2>Preferred Qualifications</h2><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Experience with multi-tenant SaaS or collaborative web platforms.</p></li><li><p style="min-height:1.5em">Familiarity with auth frameworks (OAuth, JWT, Firebase Auth).</p></li><li><p style="min-height:1.5em">Exposure to observability stacks (Sentry, Datadog, Grafana).</p></li><li><p style="min-height:1.5em">Prior experience building internal tools or admin dashb