Experience building reactive applications (React, Svelte, Vue) across multiple platforms. Experience with Electron or similar cross OS shells is a plus. Comfortable with back-end development. Design back-end APIs. Expose and use rest endpoints. Experience with developer experience tools. Worked on CI/CD pipelines. Worked with containerization. Experience with testing code (Unit testing, Integration testing, Test performance optimization). Experience in either React, Vue, Typescript. Knowledge of Node.js, Python or Go is a plus. DevOps: Git, Docker, Webpack, npm. Monitoring and alerting (Grafana, Datadog). Experience with feature flagging mechanisms (Launchdarkly).