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In office • San Francisco💼 Full-time💰 $150,000–$150,000🗓 2026-06-25

Core

Design, build, and refine a cutting-edge web application focusing on high-quality UI components and next-generation data visualization for massive data streams.

Role type

Senior / Staff Frontend Engineer (Data Visualization)

Builds

Web application UI components and data visualization dashboards

Domain

Fintech / Data Analytics

Deliverable

production ML models | product features

Required skills

TypeScript, JavaScript, React, React internals, state management (Redux/Zustand), frontend system design, component libraries, design systems, mentoring

Preferred skills

UX/UI design, startup mindset, ownership

Technologies

TypeScript, JavaScript, React, Redux, Zustand, D3, visx, Storybook

Responsibilities

Implement high-quality UI components, build data visualization dashboards, ensure optimal performance, establish engineering best practices, mentor teammates, collaborate with design and backend teams

Seniority

Senior / Staff, hands-on IC with mentorship

Rewrite
## About the Role As a Senior / Staff Frontend Engineer at Apiphany, you'll help design, build, and refine our cutting-edge web application. You will be responsible for implementing high-quality UI components, building the next generation of data visualization, ensuring optimal performance, and maintaining best practices in front-end development. You'll also help shape the long-term frontend strategy, mentor teammates, and establish engineering best practices that will scale with the company. You'll collaborate closely with design, backend, and ML engineers to make massive data streams intuitive and actionable for users for a seamless experience. ## Experience & Skills - 3-5+ years of experience in TypeScript, JavaScript, and React - Deep understanding of React internals, rendering performance, and state management patterns (Redux, Zustand, or similar) - Experience designing and developing data visualization dashboards using D3, visx, or equivalent frameworks - Proven experience in frontend system design, architecture, and optimization - Experience developing component libraries and design systems (Storybook or similar) - Experience mentoring engineers, leading technical discussions, and guiding long-term architectural decisions ## Personality & Values - Startup mindset: bias toward action, rapid iteration, and ownership - Mission-driven and customer-obsessed - Self-motivated, collaborative, and eager to raise the bar for the whole team - Passion for UX/UI design and creating delightful user experiences ## Compensation & Benefits - Base Salary: $150,000–$300,000 - Equity: 0.1%–1.0% - Visa Sponsorship - Hybrid work: 3 days in San Francisco office - 401(k) plan - Medical, Dental, and Vision insurance coverage - Snacks at the office - Paid Time Off (PTO): Flexible vacation policy
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