Back to All Open Roles
UI/UX & WEB PLATFORMS JOB ID: IEC-PFE-2026 2 Openings Available

Principal Frontend Engineer

Craft Pixel-Perfect, High-FPS Web Interfaces, Canvas Shaders & Design Systems

We are seeking a Principal Frontend Engineer obsessed with craft, visual aesthetics, and micro-interactions. You will spearhead our client-facing UI design systems, interactive financial telemetry dashboards, and WebGL visualizations, ensuring flawless 60 FPS animations and instant page load speeds.

ROLE SNAPSHOT

Join This Squad

  • Work Model: 100% Remote Async
  • Direct Review: Founders & Tech Lead
Apply For This Role
100% Confidential • Fast 48h Response
Mission & Impact

Key Architectural Challenges You Will Solve

01

Extreme Rendering Speed

Optimize DOM manipulation, virtualized lists, and CSS paint cycles to maintain sub-100ms INP and 98+ PageSpeed index.

02

Design System Governance

Establish modular Figma-to-Code component libraries with Storybook, design tokens, and strict WCAG AA accessibility.

03

Real-Time Visualizations

Build interactive financial charts, live crypto order books, and IoT telemetry graphs using D3.js and WebSockets.

04

Micro-Frontend Architecture

Structure modular React apps with independent deployment boundaries, tree-shaking, and sub-100KB initial chunk sizes.

Stack & Tooling

Production Tech Ecosystem

Core Frameworks
Next.js 14 React 18 / 19 TypeScript Vite Turbopack
Styling & Motion
Vanilla CSS (Modern) Tailwind CSS Framer Motion GSAP CSS Modules PostCSS
State & Data Fetching
Zustand TanStack Query (React Query) Redux Toolkit Axios WebSockets
Testing & Quality
Storybook Playwright Jest / Vitest Lighthouse CI Chromatic
Responsibilities

What You Will Own & Deliver

  • Architect and implement responsive, visually stunning enterprise web interfaces that wow executive stakeholders on first glance.
  • Collaborate tightly with UI/UX designers to translate Figma design systems into reusable, tokenized component libraries.
  • Optimize frontend critical rendering path, font loading strategies, image formats (AVIF/WebP), and memory footprints.
  • Implement fluid micro-interactions, spring physics animations, and dark/light theme switching with zero layout shift (CLS 0).
  • Conduct cross-browser performance profiling across Safari, Chrome, Firefox, and mobile viewports.
  • Champion frontend code quality through automated linting, TypeScript strict mode, and comprehensive component unit tests.
Qualifications

Required Experience & DNA

  • 3+ years of intensive frontend engineering experience building complex, interactive React/Next.js web applications.
  • Deep mastery of modern CSS (Flexbox, Grid, Custom Properties, subgrid, container queries) and fluid typography techniques.
  • Strong portfolio demonstrating high visual craft, responsive layouts, and attention to typographic hierarchy.
  • Proficiency with client-side state management, caching strategies, optimistic updates, and error boundary handling.
  • Solid understanding of browser rendering engines, memory profiling, and bundle analysis tools.

High-Value Bonus Signals

  • Experience with WebGL, Three.js, or Canvas shaders for generative visuals.
  • Experience building micro-frontends with Module Federation.
  • Figma plugin creation or Design Systems engineering experience.
Rapid Hiring Protocol

Our Transparent 4-Stage Interview Loop

01
Discovery Call
20 min culture and compensation alignment.
02
Architecture Review
45 min real-world systems deep dive. No trivia.
03
Founder Sync
30 min roadmap and equity alignment.
04
Offer in 48h
Formal offer letter & hardware delivery.
DIRECT FOUNDER INBOX

Apply for Principal Frontend Engineer

Fill out this short application. Our engineering squad leads review all submissions directly and respond within 24 business hours.