• Build features end-to-end across backend (Go) and frontend (React/TypeScript) • Design and implement APIs that power dashboards, workflows, and reporting • Build UI components that present complex data clearly and drive user action • Map complex backend data to clear, actionable interfaces • Implement robust error handling and fallback behaviors for upstream service failures • Optimize end-to-end performance, including caching, pagination, and query design for high-volume data • Develop reusable patterns and components that scale across many areas of the platform • Work directly with customers and design partners to understand how features are used and iterate rapidly • Build monitoring and analytics to track feature usage, success rates, and user engagement • Collaborate with AppSec, backend, and design on how data flows from services through to the UI

• Collaborate closely with designers, product managers, and backend engineers to develop intuitive and responsive interfaces using React, React Native, and modern web technologies. • Design and develop scalable, secure, and reliable server-side components, APIs, and the front-end interfaces that consume them. • Work closely with Product and Design teams to implement RESTful and/or GraphQL APIs, business logic, database schemas, and responsive UI components. • Build and maintain services using TypeScript, React, and Node.js, and manage deployments across AWS and Kubernetes environments. • Ensure compliance with HIPAA, SOC 2, and HITRUST requirements through strong engineering practices on both front-end and back-end. • Contribute to CI/CD pipelines and infrastructure automation using Docker, Kubernetes, GitHub Actions, or similar tools. • Monitor, debug, and improve application performance, reliability, and observability end to end. • Write clean, maintainable code with appropriate documentation and unit/integration tests across the stack. • Collaborate cross-functionally in agile sprints using Jira, Confluence, and GitHub.

• Prepare conceptual designs and execution plans • Engineering/project cost estimates and schedules • Perform and document quality reviews for other engineers and designers • Prepare construction drawings, documents, calculations, and studies for medium and high voltage substation projects • Responsible for technical delivery of power delivery engineering projects or tasks • Prepare calculations, studies, and reports for substation and power systems projects meeting internal and client standards and requirements • Apply engineering design principles and practices including formulas • Work and coordinate with small multi-discipline (Civil, Structural, P&C, Transmission Line) project teams to execute substation projects

• Lead contributions to Mapbox Studio, our flagship map design tool. Studio is a complex React / Redux app that requires fluency in Javascript, Typescript, and web technologies. Ship simple, approachable, performant, testable code. • Facilitate and make informed technical decisions that drive the long term vision for maps at Mapbox. • Build workflow tools that enable our map designers to create beautiful maps faster and easier. • Solve complex architecture problems in an extensible, maintainable way. Bring clarity to complex technical problems across the organization. • Participate in the design process by listening to users, attending design critiques, and providing guidance and feedback informed by a deep understanding of technical constraints. • Reduce technical debt, share your knowledge, and invest in your teammates’ health and happiness, while optimizing application performance and accelerating feature velocity. • Promote a culture of operational excellence by meticulously testing and monitoring our systems and code, writing documentation, and being on-call to support the health of our services.