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Seraj Vahdati

Senior Front End Engineer

svahdati71@gmail.com(+98) 912 053 5594
Senior Front End Engineer with 12+ years of experience building scalable web applications that serve millions of users. Expert in React, Next.js, and TypeScript, with a proven track record of delivering 35%+ performance improvements and leading cross-functional teams. Successfully architected and implemented solutions at WebcentriQ, Setflow, Goki, and Omid Analyzer, with extensive experience in test automation, design systems, and modern web optimization techniques.

Frontend Frameworks & Libraries:

React

Next.js

TypeScript

JavaScript

Redux

Zustand

GraphQL

Testing & Quality Assurance:

Playwright

Cypress

Jest

Styling & UI Libraries:

Tailwind CSS

shadcn/ui

Styled-Components

Development Tools:

Git

Webpack

Linux

Backend & Database:

Node.js

NestJs

Express.js

Python

Django

PHP

SQL

Languages:

English (Professional)

Persian (Native)

Kurdish (Native)

Experience

WebcentriQ

Senior Front End Engineer
September 2024 - Present
United States (Remote)
  • Architected and implemented project structure for company projects, establishing best practices and scalable architecture for long-term maintainability.
  • Developed scaleward.ai platform using Next.js, Tailwind CSS, and shadcn/ui, delivering a modern and responsive user experience.
  • Implemented comprehensive end-to-end testing suite for Scaleward using Playwright, ensuring robust test coverage and improved code quality.
  • Optimized application performance through code splitting, lazy loading, and bundle optimization, improving load times significantly.
  • Led knowledge-sharing sessions on Cursor AI, modern development workflows, and front-end testing best practices with the development team.

Setflow

Senior Front End Engineer
July 2023 - September 2024
Italy, Milan (Remote)
  • Architected and implemented authentication system, resulting in a 15% improvement in application load time and enhanced security.
  • Developed advanced Annotation and Map components with real-time collaboration features, enhancing user interaction and workflow efficiency.
  • Engineered new features using Next.js, TypeScript, and shadcn/ui, following modern design patterns and best practices.

Goki

Senior Front End Engineer
June 2022 - July 2023
Australia, Sydney (Remote)
  • Developed and shipped new features using React.js, TypeScript, styled-components, and Ant Design, improving user experience and platform capabilities.
  • Optimized API integration logic by implementing Universal API Consumer (UAC), reducing code duplication and improving maintainability.
  • Refactored legacy codebase to modern React patterns, improving code maintainability, readability, and team velocity.
  • Conducted 100+ code reviews, maintaining 95% adherence to coding standards and mentoring junior developers.

Omid Analyzer

Senior Front End Engineer
March 2020 - June 2022
Tehran, Iran
  • Led development, redesign, and maintenance of all front-end products using React.js, TypeScript, Redux, Webpack, and ES6, serving thousands of daily users.
  • Built a comprehensive Design System from scratch, improving developer experience and reducing development costs by 20%.
  • Established and championed Git Flow best practices, component architecture standards, and clean code principles across the team.
  • Led product redesign initiative using Sketch, improving user satisfaction and interface consistency.

LogicKit

Lead Front End Developer
November 2018 - April 2020
USA, Los Angeles (Remote)
  • Managed and mentored a team of 3 Front End Developers, establishing code standards and conducting regular code reviews.
  • Led complete website rewrite initiative, resulting in a 35% increase in sales conversion and improved user engagement.
  • Architected and maintained UI KIT package library with React, TypeScript, and Styled-Components, enabling consistent design across products.
  • Implemented robust state management using Apollo GraphQL and Redux for complex, data-driven user interfaces.
  • Optimized build pipeline by migrating from Create React App to custom Webpack configuration, reducing bundle size and build times.

Bimebazar

Front End Developer
May 2016 - October 2018
Tehran, Iran
  • Led complete migration from legacy HTML, CSS, and jQuery codebase to modern React, Redux, and Webpack stack, achieving a 50% performance improvement.
  • Optimized Core Web Vitals metrics including LCP and CLS, resulting in a 40% improvement in user experience scores.
  • Led product redesign initiative using Sketch, modernizing the user interface and improving conversion rates.

Karina Mobile Solutions

Front End Developer & User Interface Designer
January 2012 - February 2014
Tehran, Iran
  • Designed CSS templates for use across all website pages, working with CSS backgrounds, positioning, text, borders, margins, padding, and tables.
  • Applied optimization techniques to reduce page size and load times, enhancing user experience using sprites.
  • Developed user interfaces using HTML, CSS, jQuery, JavaScript, and WordPress.

Freelancer

Web Developer & User Interface Designer
August 2008 - January 2012
Tehran, Iran
    • Azad University

      Bachelor - Software Engineering
      09/2015 - 05/2017
    • Raja University

      Associate Degree - Software Engineering
      01/2013 - 05/2015