Skip to main content
Loading, please wait...
Senior UX Engineer

UX Engineer
& Accessibility
Expert

Design System Expert focused on WCAG Accessibility standards. Building scalable, inclusive React components in Manchester, UK.

Alexander Aguirre, UX Engineer, smiling professional headshot
Manchester, UK 9+ Years Experience
  • Years
    Experience
    9 plus years of experience
  • Projects
    Delivered
    50 plus projects delivered
  • LinkedIn
    Followers
    1664 LinkedIn followers
  • Figma
    Plugins
    2 Figma plugins created

About Alexander Aguirre - Senior UX Engineer & Design System Expert

Senior UX Engineer creating accessible, WCAG-compliant digital experiences that drive business success.

I am a Senior UX Engineer based in Manchester, UK, with over 9 years of experience building accessible, scalable design systems. I focus on bridging the gap between design and development through UX engineering, WCAG 2.1 AA/AAA accessibility auditing, and React-based component libraries. I have built Figma plugins like Design System Sync (multi-format token export with GitHub integration) and Atomic Component Generator (AI-powered component creation). I also maintain the open-source Digiin Design System. On top of that, I have written books including 'The UX Laws Bible' and 'Beyond the Checklist,' and I regularly write about CSS architecture, design tokens, and inclusive design.

As a Senior UX Engineer and Design System Expert, I work closely with cross-functional teams to turn designs into production-ready React code while following WCAG accessibility standards.

My skills cover inclusive design, component libraries, design tokens, and user research. I build Figma plugins, Chrome extensions for accessibility testing, and scalable design systems that improve the experience for all users, including people with disabilities.

Design

  • UX/UI Design
  • Design Systems
  • Figma & FigJam
  • User Research
  • Prototyping

Engineering

  • React.js
  • HTML / CSS / JS
  • WCAG Accessibility
  • User-centered Design
  • Agile / Scrum

Figma Plugin Developer building tools for Design System management.

As a Figma Expert, I create plugins that bridge design and development. Creator of uxuiconexioncreativa Figma community with design system templates used by thousands of UX professionals.

Public Design System: Digiin System

Explore my open-source design system built with scalability and accessibility in mind.

Open in Figma

WCAG Accessibility Expert making the web inclusive for everyone.

As a Web Accessibility Consultant and A11y Expert, I build Chrome extensions and tools that help developers create WCAG-compliant, inclusive digital experiences for users with disabilities.

Open Source React Developer building accessible components.

Active contributor to the frontend development community with React components, accessibility tools, and design system utilities.

MCP Server

mcp-wcag-accessibility

MCP server for WCAG accessibility analysis and code refactoring - 100% local and free

const server = new McpServer({
  name: "wcag-accessibility",
  version: "1.0.0"
});

server.analyzePage(html, {
  level: "AA",
  rules: ["aria", "color"]
});
Live Demo

design-system-sync

Sync Figma design tokens to code repositories. Multi-format export with GitHub & Bitbucket integration

const syncTokens = async () => {
  const tokens = await extractFromFigma();

  await exportToFormats(tokens, [
    'css-variables',
    'style-dictionary',
    'w3c-json'
  ]);
};
Live Demo

pure-css-slider

Modern responsive card slider using pure CSS with scroll-snap and interactive markers

.slider {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
}

.slide {
  scroll-snap-align: center;
}
Live Demo

trading-journal

Track and analyze your trades with detailed journaling, statistics, and performance insights

const calculatePnL = (trades) => {
  return trades.reduce((acc, trade) => {
    const pnl = trade.exitPrice -
                 trade.entryPrice;
    return acc + (pnl * trade.size);
  }, 0);
};
Live Demo

calculator-isa

ISA investment calculator to project tax-free savings growth over time

const projectGrowth = (
  initial, monthly, years, rate
) => {
  let total = initial;
  for (let i = 0; i < years * 12; i++) {
    total = total * (1 + rate/12) + monthly;
  }
  return total;
};
Live Demo

my-blog-uxui

Professional UX/UI blog with e-commerce functionality built with React, Tailwind and Strapi

export default function BlogPost({
  post
}) {
  return (
    <Article>
      <MDXRemote source={post.content} />
      <ShareButtons url={post.slug} />
    Article>
  );
}

Work Experience

UX Engineer III

AJ Bell - Manchester, UK

Developing UI systems and converting designs into React code. Ensuring pixel-perfect implementation of website components and integrating WCAG standards. Collaborating with cross-functional teams to optimize user experience and accessibility.

UX/UI Product Designer

InXpress - England, UK

Led UX/UI design for SaaS freight transport product. Achieved 20% increase in user satisfaction, 15% decrease in user interaction time, and 10% productivity boost through user-centered design approaches.

Senior UX/UI Designer

Alexander Studio (Freelance) - Bath, UK

Delivered comprehensive UX/UI design solutions including wireframes, user flows, and prototypes. Proficient in Figma, Photoshop, Illustrator, and React.js for rapid prototyping in Agile environments.

Web Developer

John Dalton Agency - London, UK

Implemented websites, mobile applications, and landing pages with responsive, mobile-first approach. Conducted UX and UI design assessments for technical feasibility.

Accessibility is not a bonus feature - it's basic respect. Let's build doors, not walls.

My Philosophy

Articles and Blog Posts

Loading latest articles...

UX Engineering & Accessibility Consulting Services

  • Design System Development & Consulting

    End-to-end design system creation by a Design System Expert. Includes React component libraries, design tokens, documentation, and governance frameworks with WCAG accessibility built-in.

  • WCAG Accessibility Audits & Remediation

    Comprehensive WCAG 2.1 AA/AAA audits by a certified Accessibility Expert. Includes accessibility testing, screen reader compatibility, and remediation strategies for inclusive digital products.

  • UX Engineering & React Development

    Senior UX Engineer services translating complex Figma designs into pixel-perfect, accessible React code. Expert at bridging design and development teams.

  • Figma Plugin & Extension Development

    Custom Figma plugin development and Chrome extensions to streamline your design-to-code workflow, automate design tokens, and enhance team productivity.

9+ years, 50+ projects delivered Creator of Design System Sync (Figma plugin) Published author: The UX Laws Bible, Beyond the Checklist

Hire a UX Engineer & Accessibility Expert

Need a UX engineer who builds design systems AND writes production code? Available for Design System consulting, WCAG accessibility audits, and UX Engineering projects. Based in Manchester, UK — working globally. Let's build something accessible and impactful together.