Design, develop, test, document, release, and support the ArcGIS Maps SDK for JavaScript. Collaborate with customers and stakeholders to gather feedback and guide future releases. Define customer needs and translate them into product improvements and new designs. Create thorough documentation, including API references, code samples, templates, and tutorials. Troubleshoot and fix bugs from internal testing and customer reports. Stay current with web and browser trends to ensure a modern user experience. Contribute to roadmap planning, provide technical leadership, and assist with implementation design.