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Abubakar Nazir

@abubakarnazir

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I build scalable React applications for healthcare billing, ERP, and enterprise platforms.

Pakistan

Message

I've built React applications for Nexus Billing Group, including a provider-facing healthcare billing portal supporting insurance verification, claim submission, payment posting, credentialing, and role-based access.

I architected dashboards and multi-step workflows with React JS and Redux Toolkit, and reduced application bundle size by 38% through code splitting, lazy loading, and dependency auditing. I've also created AR aging, credentialing, notifications, and reconciliation features for U.S. medical and dental providers.

Previously, I delivered ERP and performance-monitoring modules at Codility Solutions and built Workhub interfaces at Coeus Solutions. I enjoy mentoring junior developers, contributing to component-based design systems, and helping teams ship projects ahead of schedule.

Experience

Work history, roles, and key accomplishments

Frontend Developer — React JS

Nexus Billing Group

Jan 2023 - Jan 2026 (3 years)

Architected a provider-facing billing dashboard using React JS and Redux Toolkit, enabling real-time tracking of claims and payment statuses. Developed multi-step claim submission workflows, insurance verification modules, and role-based access control, reducing submission errors and improving operational efficiency.

React Redux toolkit JavaScript HTML5 CSS Material UI Axios REST APIs Git GitHub Vercel Webpack Recharts HighCharts Chart.Js Context API React Router Code Splitting Lazy Loading Team Leadership Mentorship

Frontend Developer — React JS

Codility Solutions

Mar 2022 - Dec 2022 (9 months)

Migrated an automated survey module to a manual module and integrated Highcharts for dynamic performance visualization. Led a cross-functional developer team, achieving project delivery two weeks ahead of schedule, and built user, admin, and super-admin modules within a large-scale ERP platform.

React Redux Axios HighCharts Material UI JavaScript HTML5 CSS React Hooks ERP Team Leadership

Associate Software Engineer

Coeus Solutions

Apr 2021 - Nov 2021 (7 months)

Built client-facing web interfaces for Workhub Client, Workhub Scheduling, and Workhub Admin using React JS, HTML, CSS, and JavaScript ES6+. Integrated third-party APIs using Axios and managed UI state with React hooks and Context API, participating in code reviews within a team-based workflow.