Founding Engineer - Frontend & Mobile

About the Company We are an early-stage Fintech + AI startup backed by seasoned investors from the financial and technology sectors. Our mission is to reinvent how users interact with modern financial tools by combining AI-driven intelligence with high-performance trading and investment infrastructure. Role Overview As a Founding Engineer with a focus on Frontend and Mobile, you will be the primary architect of our user-facing ecosystem. You will lead the development of our flagship mobile applications and web dashboards, ensuring that complex financial data and AI-driven insights are delivered through a seamless, high-performance interface. This role is ideal for a full-stack-minded frontend expert who thrives on autonomy, technical depth, and fast iteration within a pre-seed environment. What You'll Do Platform Development: Architect and build high-performance web and mobile applications (iOS and Android) from scratch. Infrastructure Ownership: Set up frontend infrastructure and deployment pipelines, potentially leveraging Google Cloud Platform. Product Design: Partner closely with the team to prototype and deploy high-impact user interfaces for financial tools. Engineering Excellence: Operate as an "AI-native" engineer proficient in using AI coding agents such as Claude Code and Codex. Maintaining high code quality is a non-negotiable requirement. Ideal Candidate Strong hands-on experience in modern frontend frameworks (TypeScript/React) and native or cross-platform mobile development (Swift, Kotlin, or Flutter). Comfortable in fast-paced, "zero-to-one" environments; you possess a strong bias for action and a sense of ownership. Strong academic background or a proven track record of building significant, real-world products. Nice to Have Familiarity and curiosity regarding trading, financial innovation, or cryptocurrency. Prior experience in a startup environment. Location Based in or open to relocating to San Francisco.