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Usman Shahzad

@usmanshahzad

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Senior React Developer building scalable, high-performance web apps with pixel-perfect UI.

Pakistan

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What I'm looking for

I’m looking for a senior front-end/React role where I can build scalable, high-performance UIs, collaborate cross-functionally with APIs and design systems, and lead through code reviews—especially on data-heavy products where accuracy and UX matter.

I’m a results-driven Senior React Developer with 7+ years of progressive front-end experience, specializing in scalable, high-performance web applications. I focus on delivering pixel-perfect interfaces that meet both business goals and user expectations, from design translation to production-ready UI.

In my current role, I develop and maintain the front-end of a healthcare billing and medical records platform. I build complex, data-intensive React components for patient billing workflows, insurance claim management, and payment dashboards, partnering with Laravel teams to define RESTful API contracts and integrate reporting and payment endpoints.

I bring modern state-management and UI-system discipline to every build, using Redux Toolkit (RTK Query) for efficient server-state caching and implementing HIPAA-aware UI practices. I also enforce code quality through reviews, reusable component libraries, and adherence to MUI-based design systems, including role-based access controls, session handling, and PHI data masking.

Previously, I architected and delivered multiple production-grade SPAs using React.js, Redux, and REST APIs. I improved performance by reducing page load time by 35% via code splitting, lazy loading, and React.memo optimizations, while leading a team of junior developers through code reviews and best-practice React patterns across healthcare, media, and fintech projects.

Experience

Work history, roles, and key accomplishments

Current

Senior React Developer

Current

SimplexMed

Apr 2025 - Present (1 year 2 months)

Develop and maintain the front-end for a healthcare billing and medical records platform, implementing patient billing workflows, insurance claim management, and payment dashboards. Integrated RESTful endpoints with Laravel back end, built state management with Redux Toolkit/RTK Query, and enforced HIPAA-aware UI practices including role-based access and PHI data masking.

Redux toolkit Role Based Access Control HIPAA Aware UI

React Developer

Nayyar Technologies

Jan 2021 - Mar 2025 (4 years 2 months)

Architected and delivered multiple production-grade React SPAs using Redux and REST APIs, translating Figma and Adobe XD designs into responsive, accessible, cross-browser interfaces. Reduced page load time by 35% using code splitting, lazy loading, and React.memo optimizations, while leading a team of 2 junior developers.

React Redux REST APIs Lazy Loading Axios

Senior Frontend & Newsletter

Basma Media

Jan 2020 - Jan 2021 (1 year)

Designed and engineered responsive HTML email newsletters with pixel-perfect rendering across 20+ email clients. Improved newsletter click-through rate by 28% through visual hierarchy and mobile-first layout redesigns, and maintained the company front-end using HTML5, CSS3, Bootstrap, and JavaScript.

CSS3 Bootstrap JavaScript Mobile First Layouts Responsive Design Cross Client Rendering

Senior Front End Developer

Computer Softech

Jan 2019 - Jan 2020 (1 year)

Led front-end development for WordPress and custom web projects using HTML, CSS, JavaScript, and Bootstrap. Mentored junior developers, established UI coding standards, and delivered 10+ client projects on time with consistently positive UI quality feedback.

HTML CSS JavaScript Bootstrap WordPress Coding Standards Mentorship

Junior Front End Developer

Computer Xperts

Jan 2018 - Jan 2019 (1 year)

Developed responsive web pages using HTML, CSS, JavaScript, and Bootstrap while assisting senior developers with UI component implementation. Ensured cross-browser compatibility and built foundational skills in web performance, accessibility, and version control with Git.