Sepideh Khadempir
Senior Frontend React/TypeScript engineer (8 + yrs). Led WCAG 2.1 AA redesign for 100 + components, cut UI bugs 30 % with TDD and modernises legacy UIs into fast, accessible products that boost engagement.
React, TypeScript, Next.js, React Router, React Query, JavaScript, HTML5, CSS/SCSS, Tailwind CSS, GSAP, React Native, Jest, React testing library, Webpack, Vite, Yarn, Nest.js, Docker, AWS, CI/CD, Storybook
Skills
React/Next.js TypeScript
Modern web apps built with React & Next.js for speed, SEO, and seamless user experiences.
Testing
Jest + Cypress
Accessible, pixel-perfect interfaces that delight users on every device and meet WCAG 2.1 AA.
UI/UX & A11y Dev
Accessible, pixel-perfect interfaces that delight users on every device and meet WCAG 2.1 AA.
Design System & Storybook
Reusable, WCAG-compliant components documented in Storybook to keep your UI consistent and fast.
React Native
Interactive mobile apps crafted with React Native, tailored to your product and users.
GraphQL &
REST API
Consumes RESTful APIs and Apollo Supergraph queries to deliver fast, real-time interfaces. Sources Ask ChatGPT
Mentorship
Coaching, code reviews, and agile rituals that boost team velocity, quality, and developer growth.
My proven, five-step playbook—Discover & Define → Design System → Architecture & Setup → Develop & Test → Iterate & Optimise—compresses hand-offs, enforces WCAG AA, and ships features up to 5× faster.
How I Build ??
Discover
Workshops, user flows, and KPIs align the team before a single line of code is written.
Design
System
Tokens and Storybook prototypes lock typography, colour, and states for consistent UI.
Architecture
Scalable folder structure, linting, CI, and SSR keep feature teams shipping fast.
Develop & Test
Pair-programmed components with Jest and Cypress catch bugs long before production.
Iterate
Ship, measure, A/B-test; improve Core Web Vitals and accessibility every sprint.
Let’s talk about your next project!
I usually reply within one business day.