Senior Full Stack Engineer

Owl Labs is looking for a Senior Full Stack Engineer to build customer-facing product experiences and the backend systems that support them. You’ll work across frontend, backend, cloud infrastructure, and device-connected workflows, partnering cross-functionally to ship high-quality software in an evolving, fast-paced environment. WHAT YOU'LL DO: Build and ship customer-facing features across the Owl Labs customer portal — a React + Vite SPA used daily by customers to manage their devices.

Drive and contribute to active codebase migrations (i.e. JavaScript → TypeScript) to improve reliability, safety, and long-term maintainability. Own performance work: identify and fix bottlenecks through virtualization, memoization, code splitting, and bundle optimization.

Work within and occasionally extend our shared design system, contributing reusable components and UX improvements. Write unit tests as a standard part of every change and contribute to our Playwright e2e suite to keep the portal stable as it evolves. Design, build, and operate backend services on AWS (Lambda, ECS, API Gateway, S3, IAM) that power the customer portal and device management workflows.

Model and query data across PostgreSQL and DynamoDB, choosing the right store for the job and optimizing indexes, access patterns, and query performance. Implement IoT communication flows using MQTT and WebSockets, integrating with AWS IoT Core and other messaging services to manage fleets of connected devices. Build decoupled