KRISHNENDU DAS

Full-Stack Developer

Kolkata, India $30/hr Remote Full-time 2+ yrs exp 94 · Outstanding

About

Full-Stack Developer with 2+ years of experience building business applications using Laravel, PHP, React.js, JavaScript, MySQL, and REST APIs. Skilled in responsive UI development, backend module design, API integration, database design, role-based access control (RBAC), security remediation, and performance optimization. Delivered end-to-end systems across healthcare, education, billing, inventory, e-commerce, CRM, and government services.

Skills & Expertise (14)

Python coding skills React Js Developer Anthropic (Claude) Claude Code Google Antigravity Php Laravel NodeJS NextJS MySQL / PostgreSQL MongoDb RESTful-APIs HTML5 & CSS3 Full-Stack Web Application Development

Work Experience

Full Stack Developer

Infoytecsys

March 2022 - Present

Part-Time 1. Designed and developed SaaS applications for billing, inventory, healthcare, pharmacy, and appointment-management workflows. 2. Built backend modules using Laravel, PHP, MySQL and REST APIs. 3. Developed responsive frontend interfaces using React.js, JavaScript, and Bootstrap. 4. Implemented authentication, role-based permissions, invoicing, reporting, and administrative dashboards. 5. Managed application deployment, domain configuration, production troubleshooting, and client-specific customization. 6. Gathered requirements and converted operational workflows into functional software modules.

Software Developer

Ornate Techno Services Pvt. Ltd. — National Library of India

May 2024 - Mar 2026

Developed, maintained, and enhanced full-stack web applications using PHP, CodeIgniter, MySQL, JavaScript, HTML5, CSS3, and Bootstrap. Built online membership, KYC verification, reporting, administration, and workflow automation modules from interface through database integration. Maintained databases, monitored servers, troubleshot production issues, and improved application performance, usability, and reliability. Coordinated cybersecurity audits and VAPT remediation by implementing application- and server-side security recommendations. Worked with library officials and technical teams to convert operational requirements into end-to-end application improvements.

Project Engineer

National Informatics Centre (NIC)

Jan 2022 - Aug 2022

Contributed to full-stack government web application development using CodeIgniter 3, PHP, PostgreSQL, HTML5, and CSS. Supported maintainable application workflows across interface, business logic, and database components.