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Resume

Sassi M.

Senior Frontend Developer

Senior Frontend Developer with 10+ years of experience building production web applications with React, TypeScript, Vue, and Nuxt. My background includes frontend architecture, design systems, shared component libraries, accessible interfaces, and complex product workflows. I work across design and engineering to create consistent interfaces and frontend systems that teams can maintain and extend.

Available for one engagement.

Open as a document

What I work with

Frontend
  • React
  • TypeScript
  • JavaScript
  • Vue.js
  • Nuxt
  • Next.js
  • Redux Toolkit
  • React Hook Form
  • HTML
  • CSS
  • responsive design
Design Systems and UI
  • Chakra UI
  • Material UI (MUI)
  • Tailwind CSS
  • CSS Modules
  • Figma
  • Storybook
  • design tokens
  • i18n
  • design-to-code workflows
Architecture and Packages
  • Nx monorepos
  • shared component libraries
  • pnpm workspaces
  • Lerna
  • semantic versioning
Testing and Accessibility
  • Accessibility and WCAG AA practices
  • Vitest
  • Playwright
  • Biome
Tooling and Delivery
  • Vite
  • GitHub Actions
  • CI/CD
  • GitHub Packages
  • Docker
  • AWS
  • Vercel

Experience

  1. LockeBio

    Sep 2024 – Jun 2026

    Senior Frontend Developer

    • Led frontend architecture across two Nx monorepos supporting five React and TypeScript applications for EMR and Core.
    • Built the Core admin application and helped split a legacy React platform into focused Nx applications and shared libraries.
    • Built and consolidated 8 of 13 shared packages, including a 16-component React Hook Form library used across 146 source files.
    • Implemented Chakra UI design tokens and WCAG AA-aligned form patterns with accessible labels, errors, focus handling, ARIA labels, and Biome checks.
    • Created 14 Storybook stories and maintained package releases with pnpm, Lerna, semantic versioning, and GitHub Packages.
    • Helped the frontend team reduce CI time from 10–15 minutes to about 1 minute through caching, test cleanup, and Vite and Vitest updates.

  2. Frontend consulting

    Jun 2020 – Present

    Founder / Senior Frontend Consultant

    Led frontend delivery and architecture for SaaS, public sector, fintech, healthcare, nonprofit, and subscription commerce products.

    Selected client work

    • Radical I/O Technology - MyRichmond (City of Richmond Citizen Portal)

      • Enhanced a legacy React and Material UI form system used across municipal services, adding dynamic fields, conditional logic, validation, and submission workflows.
      • Extended reusable Storybook form components to support consistent implementation across City services.
      • Migrated legacy styling from global CSS to CSS Modules, scoping styles to components and reducing cross-page styling conflicts.

    • CandidateX - Inclusion-Focused Hiring Platform

      • Recovered a stalled project with an incomplete serverless implementation by rebuilding the client and admin frontends with React and TypeScript.
      • Consolidated multiple repositories with duplicate code into an Nx monorepo while preserving their Git histories and creating shared packages for the client and admin applications.
      • Owned interface delivery from design through QA, creating Figma designs, implementing the frontend, and testing client and admin workflows.
      • Built Chakra UI v2 design-system foundations and reusable React Hook Form patterns, with Redux Toolkit for application state.
      • Developed WCAG AA-aligned components and workflows across the client and admin applications.
      • Implemented internationalization for UK English, US English, and French, with support for adding future languages.

    • Reitium Technologies - Fintech Platform for Fractional Real Estate Investment

      • Built versioned shared component libraries and governed changes through semantic versioning, merge standards, and pull-request reviews.
      • Refactored frontend architecture and CI/CD workflows to support modular development and more reliable deployments.
      • Recovered an unstable Node.js platform with frequent API failures, rebuilt the React frontend, and introduced clearer TypeScript contracts across the frontend and backend.
      • Built investor dashboards for tracking investments, rental income, and account activity.

    • Tractor at Home - Meal Kit Subscription Service

      • Built reusable React and Tailwind CSS storefront components shared across shopping and onboarding flows, reducing duplicate implementation and keeping customer interactions consistent.
      • Led frontend delivery for product browsing, onboarding, subscription management, and Stripe checkout using Redux Toolkit and React Hook Form.
      • Mentored junior developers through technical guidance, pull-request reviews, and day-to-day development support.

    • Intuit / TurboTax - Consumer Tax Platform

      • Delivered React frontend development and headless WordPress integration for a major TurboTax redesign, launched OptinMonster campaigns, and resolved production issues across multiple releases.

  3. St. Michael's Hospital

    Jul 2019 - Jul 2020

    Senior Web Developer

    • Maintained WordPress and Yii2 healthcare websites subject to PHIPA privacy requirements and built responsive internal email templates with React, Fastify, and Nunjucks.

  4. Planted Tree Digital

    Mar 2019 - May 2019

    Frontend Web Developer

    • Built client WordPress websites and reusable custom Gutenberg blocks.

  5. VerticalScope Inc.

    Oct 2018 - Dec 2018

    Frontend Developer

    • Delivered frontend work across several client brands, including custom WordPress themes and Angular data visualizations with D3.js.

  6. TalentNet Inc.

    Oct 2016 - Jun 2018

    Frontend Developer

    • Stabilized a large Ember.js application and helped migrate it to React and reusable component architecture.

Want to talk about a role or a project?

Send the context. I’ll tell you if I can help.