Maryam Haider – Senior Front-End Developer

Building clean, responsive web experiences for Web3 and beyond.

I’m a Senior Front-End Developer with 6+ years of professional experience across UI/UX, Web3 & NFT marketplaces, and quality assurance. I specialize in HTML5, CSS3, Bootstrap, Tailwind, JavaScript, and modern testing practices including Manual QA, API Testing, and basic Automation.

Front-End Engineering UI/UX Implementation Web3 & NFT Interfaces Manual & UI Testing API Testing · Postman Selenium WebDriver (Basic)

About

A hybrid profile combining solid front-end engineering with hands-on testing experience.

I’m a Senior Front-End Developer with 6+ years of experience specializing in UI/UX, responsive web development, and Web3/NFT marketplace interfaces. I have strong expertise in HTML5, CSS3, Bootstrap, Tailwind, jQuery, JavaScript, and modern UI practices.

Alongside front-end development, I bring hands-on experience in UI Testing, Manual QA, API Testing (Postman), and basic Automation Testing (Selenium WebDriver). This hybrid skillset enables me to deliver visually appealing, user-friendly, and fully tested digital products with strong functional reliability.

I have contributed to multiple international projects including Vulcan Forged, MyForge, NFT Marketplace, Meet Aimy, Agora, VulcanVerse, PJPP, and Moonix—playing a key role in UI development, usability improvements, testing workflows, and cross-browser quality assurance.

Skills

Core technologies and tools I use regularly in front-end development and QA.

Front-End Development

HTML5 CSS3 JavaScript Bootstrap (3/4/5) Tailwind CSS jQuery Responsive Web Design UI/UX Implementation PSD to HTML WordPress Chrome DevTools

QA & Testing

Manual Testing UI Testing Functional Testing Regression Testing Cross-Browser Testing Cross-Device Testing API Testing (Postman) Automation Testing (Basic Selenium) Bug Reporting Test Cases & Scenarios

Tools & Collaboration

Postman Selenium WebDriver Jira Trello Git VS Code Figma Adobe Photoshop

Experience

6+ years delivering production-ready UI and tested features for international clients.

Senior Front End Developer

Vaival Technologies · Riga, Latvia (Remote)

Jan 2024 – Present · Full-time

Web3 & NFT Front-End · QA

Developed responsive UI using HTML5, CSS3, Bootstrap, Tailwind, jQuery, and JavaScript.
Built and maintained modules for Web3 games, NFT marketplaces, and gaming dashboards.
Ensured pixel-perfect UI from Figma/PSD and optimized performance across browsers.
Performed manual testing, UI/UX testing, and API testing using Postman.
Created test cases, test scenarios, and bug reports using Jira and Trello.
Supported basic automation testing using Selenium WebDriver and validated responsiveness across devices.

Front End Developer

Vaival Technologies · Lahore, Pakistan

Aug 2019 – Feb 2024 · Full-time

UI Development WordPress

Developed user interfaces for multiple large-scale projects and enterprise web apps.
Built responsive interfaces for Web3/NFT products and marketing websites.
Customized WordPress themes and improved UX flows and mobile responsiveness.
Performed UI testing, functional testing, regression testing, and browser/device compatibility checks.

Selected Projects

A snapshot of Web3, NFT, and crypto products I’ve supported with front-end and QA work.

Vulcan Forged Ecosystem

Apr 2020 – Present

End-to-end Web3 gaming & NFT ecosystem with marketplace, dashboard, and game integrations. Contributed to UI development, testing flows, and cross-browser quality.

HTML5 CSS3 Bootstrap Tailwind Web3

Agora · NFT Marketplace

Jan 2022 – Feb 2024

NFT marketplace for minting, listing, and collecting NFTs within the Vulcan Forged ecosystem. Built key UI screens and performed UI, functional, and API testing.

Marketplace UI Postman Manual QA

Vulcan Marketplace

Jan 2023 – Dec 2023

Trading platform for gaming NFTs and in-game assets. Focused on catalog UI, filters, and responsive layouts plus cross-browser validation.

NFTs Responsive UI Testing

VulcanVerse

Jan 2021 – Dec 2023

Fantasy MMORPG with NFT land ownership and quests. Delivered UI components for game menus, dashboards and asset interactions; ensured cross-device UX.

Gaming UI Web3

PJPP · Private Jet Pyjama Party

Sep 2021 – Dec 2021

Premium 9,999 NFT collection with artist collaborations. Implemented minting & reveal UI and carried out UI/UX and cross-browser testing.

NFT Collection Front-End Testing

Moonix Crypto Exchange

Jul 2021 – Sep 2021

Decentralized crypto exchange connecting buyers and sellers without a central authority. Built trading dashboard UI and performed functional & API testing.

Crypto Exchange UI QA