Base - Senior Product Engineer, React Native + Backend (Contract)

• Senior or staff-level experience with React Native and TypeScript • Strong backend experience with APIs and relational databases • Experience with payments, refunds, booking systems, marketplaces, memberships, or operational and admin tooling • The ability to read messy code and make judgment calls quickly • Strong written communication: you can explain risks clearly to a non-technical founder or operator • Comfort working without perfect specs • Experience with Metabase or analytics cleanup • Experience migrating away from NativeBase, NativeWind, or inconsistent styling systems • Experience with mobile release pipelines, QA automation, push notifications, and email workflows • Prior startup rescue, code audit, or fractional CTO experience • First Deliverables Within 5 business days: • First Deliverables • Codebase map: frontend, backend, database, integrations • Top 10 technical and product risks • What is broken versus merely messy • Estimate to stabilize HomeBase • Hiring plan for the next 30 to 60 days • Within 2 to 4 weeks: • Recovery roadmap • Technical debt triage • Recommended architecture changes • Test and QA priorities • One shipped stabilization improvement, or a verified implementation plan • Details Type: Contract (2 to 4 weeks, option to extend) Location: Remote, US Compensation: Candidate-proposed hourly or weekly rate Eligibility: Eligible to work in the US • Details