Open to opportunities

Purushendra Karn

@purushendrakarn

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I am a front-end developer specializing in React, APIs, performance optimization.

India

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What I'm looking for

I seek a mid-level front-end or full-stack role focused on React, API integration and cloud services, where I can improve performance, automate delivery, and contribute in an Agile team that values measurable impact.

I am a front-end developer who builds responsive, secure web applications using modern web stacks and design tools. I revamped a courier management system using React with Vite.js and delivered a modern, responsive UI.

I design and document RESTful APIs, test endpoints with Swagger, and implement OAuth-compliant authentication to enhance security and regulatory compliance. I also enhanced UI deployment pipelines by implementing automated vulnerability checkers and patchers.

As a research analyst I streamlined data analysis workflows using SMTP and SQL, saving 50+ hours per month in manual processing, and developed automated data pipelines for Power BI dashboards to enable real-time campaign analysis.

I have freelanced on customer-facing React products, optimized MySQL and PostgreSQL queries (improving efficiency up to 70% in places), and build reusable components to reduce development time. I work well in Agile teams and prioritize performance, security, and measurable impact.

Experience

Work history, roles, and key accomplishments

Front-End Developer

Quess Corp

Mar 2024 - Jul 2025 (1 year 4 months)

Revamped a courier management system using React (Vite.js), integrated OAuth authentication, and implemented automated vulnerability checks; optimized PostgreSQL queries to improve query efficiency by up to 70% and reduce page load times.

React Vite JavaScript OAuth RESTful APIs Swagger PostgreSQL CI CD Security Testing

Freelancing

AeroNet Dynamic Systems

Jul 2023 - Mar 2024 (8 months)

Built responsive front-end applications using ReactJS, improved MySQL architecture to increase query efficiency by 30%, and implemented OAuth-based authentication; developed reusable React components to accelerate feature delivery.

ReactJS JavaScript Responsive Design MySQL OAuth Component Design Performance Optimization

Research Analyst

SmartAcre Media Solutions

Jun 2021 - Jul 2023 (2 years 1 month)

Streamlined data analysis workflows using SMTP and SQL to save 50+ hours per month, developed automated Power BI data pipelines for real-time campaign dashboards, and built an email processing engine leveraging IMAP/POP3 to automate sales operations.