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Senior Software Engineer, Frontend

Base Power · Austin, TX

onsiteseniorPosted Sep 16, 2026TypeScriptReactNext.jsWebFrontend ArchitectureDesign SystemsState Management

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About this role

**Senior Software Engineer, Frontend** **About Base** America's next-generation power company rebuilding the foundation of modern civilization through distributed battery networks that transform today's fragile grid into a resilient system. **The Role** Lead frontend development of the customer experience across Base web and mobile applications. You'll set architecture and technical direction, own major product surfaces end-to-end, and mentor engineers across the organization. **Key Responsibilities** • Lead frontend development across web and mobile platforms • Set frontend architecture and technical strategy across the organization • Own major product surfaces from concept through production • Collaborate with backend engineers on APIs and data models • Partner with product and design to shape the roadmap • Establish engineering standards and improve developer experience • Mentor engineers and raise the bar for frontend craft • Use analytics and experimentation to improve user experience **What You'll Bring** • 7+ years building production frontend or full-stack software • Deep expertise in TypeScript and modern frameworks (React, Next.js) • Strong experience designing frontend architecture for complex applications • Track record of owning products from concept through launch • Ability to translate complex systems into simple user experiences • Experience with product analytics and experimentation • Mentoring experience and ability to influence technical direction • First principles thinking and bias toward shipping **About the Team** Owns the entire stack from firmware controlling home batteries to trading algorithms and factory software. If you want to write code that physically moves electrons and reshapes critical infrastructure, this is the role. **Our Values** First principles thinking, operate at Base pace, direct feedback, ownership mentality, strong opinions loosely held, committed to mission, and balancing grit with fun and optimism. *Base is a startup where priorities shift quickly. Role may expand based on business needs. In-person, all-in culture.*

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