Founding Engineer - Frontend & Mobile

Miru; San Francisco (CA); On-site; USD 180,000 - 240,000; Full time

Job summary

Miru is seeking a Founding Engineer focused on Frontend and Mobile to architect our user-facing ecosystem, delivering high-performance web dashboards and mobile apps for iOS and Android.

You will own frontend infrastructure, prototype UI for financial tools, and work in a fast-paced pre-seed environment with autonomous decision-making and strong technical depth.

Qualifications

• 6+ years of web and mobile front-end development experience.
• Expertise in modern frontend frameworks (TypeScript/React) and mobile development (React Native, Swift, Kotlin, or Flutter).
• Experience with deployment pipelines and CI/CD.
• Strong ownership and ability to operate in a fast-paced, zero-to-one startup environment.

Responsibilities

• Architect and build high-performance web and mobile applications (iOS and Android) from scratch.
• Set up frontend infrastructure and deployment pipelines, potentially leveraging Google Cloud Platform.
• Prototype and deploy high-impact user interfaces for financial tools.
• Maintain high code quality as an 'AI-native' engineer using AI coding agents like Claude Code and Codex.

Skills

Frontend development

TypeScript/React

CI/CD

Tools

React Native

Swift

Kotlin

Flutter

Google Cloud Platform

Job description

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-performancetrading and investment infrastructure.

Role Overview

As a Founding Engineer with a focus on Frontend and Mobile, you will be the primaryarchitect 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 pro ficient in using AI coding agents such as Claude Code and Codex. Maintaining high code quality is a non-negotiable requirement.

Ideal Candidate

• 6+ years of web and mobile front-end development experience.
• Strong hands-on experience in modern frontend frameworks (TypeScript/React)and native or cross-platform mobile development (React Native, Swift, Kotlin, or Flutter). Familiar with deployment, operation and maintenance, CI/CD.
• 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. Understands product and UI/UX design, and proficient in using tools such as Figma.
• Prior experience in a startup environment.