• Own the web app end to end: architecture, implementation, quality, performance, and ongoing operations. • Lead incremental feature delivery for a greenfield product, including shaping milestones and sequencing work into shippable slices. • Build core UI flows for interacting with exploration outputs, including data-heavy views and 3D visualization of geological datasets. • Design clean interfaces to backend services: APIs, auth, permissions, data contracts, error handling, and versioning. • Design resilient, fault-tolerant systems across frontend and backend, with clear operational ownership. • Establish software development standards for the web app: code quality, testing strategy, reviews, release discipline, and documentation. • Design and evolve data storage patterns (relational or NoSQL), including schema design, migrations, and integrity constraints where appropriate. • Implement unit, integration, and end-to-end tests for critical paths. • Configure monitoring and alerting to catch downtime and performance degradation early. • Meet with stakeholders and end users to inform requirements, validate usability, and drive adoption. • Coordinate with design support when needed. You are not expected to be a designer, but you should have strong product taste and push for a high bar.