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I'm Sandeep Kumar, a Full Stack Developer with 13+ years of experience building scalable, high-performance web applications using PHP, Laravel, and CodeIgniter. I'm proficient on both the frontend and backend, with a solid foundation in OOP and hands-on work with Node.js, React, Angular, MySQL, PostgreSQL, and MongoDB. I also have proven experience leading teams, managing microservice architectures, and deploying solutions on cloud platforms. I enjoy crafting secure, efficient systems, integrating complex APIs (Stripe, PayPal, Google, AWS), and delivering features that drive business value. My projects range from crypto and forex trading platforms to admin dashboards, with a focus on clean code, robust security, and scalable performance. I'm passionate about mentoring teammates and improving development processes through Agile practices and automation.…I'm Sandeep Kumar, a Full Stack Developer with 13+ years of experience building scalable, high-performance web applications using PHP, Laravel, and CodeIgniter. I'm proficient on both the frontend and backend, with a solid foundation in OOP and hands-on work with Node.js, React, Angular, MySQL, PostgreSQL, and MongoDB. I also have proven experience leading teams, managing microservice architectures, and deploying solutions on cloud platforms. I enjoy crafting secure, efficient systems, integrating complex APIs (Stripe, PayPal, Google, AWS), and delivering features that drive business value. My projects range from crypto and forex trading platforms to admin dashboards, with a focus on clean code, robust security, and scalable performance. I'm passionate about mentoring teammates and improving development processes through Agile practices and automation.

Sandeep Kumar

Full Stack Developer, Web Developer, Back-End Developer, +2

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I'm Sandeep Kumar, a Full Stack Developer with 13+ years of experience building scalable, high-performance web applications using PHP, Laravel, and CodeIgniter. I'm proficient on both the frontend and backend, with a solid foundation in OOP and hands-on work with Node.js, React, Angular, MySQL, PostgreSQL, and MongoDB. I also have proven experience leading teams, managing microservice architectures, and deploying solutions on cloud platforms. I enjoy crafting secure, efficient systems, integrating complex APIs (Stripe, PayPal, Google, AWS), and delivering features that drive business value. My projects range from crypto and forex trading platforms to admin dashboards, with a focus on clean code, robust security, and scalable performance. I'm passionate about mentoring teammates and improving development processes through Agile practices and automation.…I'm Sandeep Kumar, a Full Stack Developer with 13+ years of experience building scalable, high-performance web applications using PHP, Laravel, and CodeIgniter. I'm proficient on both the frontend and backend, with a solid foundation in OOP and hands-on work with Node.js, React, Angular, MySQL, PostgreSQL, and MongoDB. I also have proven experience leading teams, managing microservice architectures, and deploying solutions on cloud platforms. I enjoy crafting secure, efficient systems, integrating complex APIs (Stripe, PayPal, Google, AWS), and delivering features that drive business value. My projects range from crypto and forex trading platforms to admin dashboards, with a focus on clean code, robust security, and scalable performance. I'm passionate about mentoring teammates and improving development processes through Agile practices and automation.

Available to hire

I’m Sandeep Kumar, a Full Stack Developer with 13+ years of experience building scalable, high-performance web applications using PHP, Laravel, and CodeIgniter. I’m proficient on both the frontend and backend, with a solid foundation in OOP and hands-on work with Node.js, React, Angular, MySQL, PostgreSQL, and MongoDB. I also have proven experience leading teams, managing microservice architectures, and deploying solutions on cloud platforms.

I enjoy crafting secure, efficient systems, integrating complex APIs (Stripe, PayPal, Google, AWS), and delivering features that drive business value. My projects range from crypto and forex trading platforms to admin dashboards, with a focus on clean code, robust security, and scalable performance. I’m passionate about mentoring teammates and improving development processes through Agile practices and automation.

Skills

Experience Level

Expert

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Language

English

Advanced

Work Experience

Full Stack Developer at Webcom System

August 1, 2022 - March 1, 2025

Crypto Exchange: CodeIgniter 3, MySQL-based trading engine, wallet management, deposits/withdrawals, and admin panel; integrated blockchain/crypto APIs for wallet generation, balance updates, and transaction confirmations; implemented user authentication and multi-layer security; built dashboards for real-time prices, transaction history, trading charts, and analytics; optimized queries and cron jobs for high-volume trading. Laravel User Wallet and Forex Exchange projects with React/Node.js were also developed within this period.

Full Stack Developer at TAC Security

December 16, 2021 - August 1, 2022

Developed and maintained a website scanning system using CodeIgniter 3; designed optimized MySQL databases, built cron-driven tasks, and implemented analytics dashboards (Chart.js) for trends, reports and real-time results; improved performance through query optimization and refactoring.

Full Stack Developer at AJDEV Technologies

April 1, 2021 - December 10, 2021

Built single-page applications with React and Node.js; integrated REST APIs and developed microservices on AWS, enabling scalable backend services and faster feature delivery.

Full Stack Developer at Softobiz Technologies

April 1, 2018 - September 1, 2020

Designed and developed custom modules using React.js and Node Express.js; built SPA interfaces and backend APIs, improving user experience and performance for client applications.

Full Stack Developer at NetQuall Technologies

February 1, 2016 - January 1, 2018

Created ticket management and document upload tools; implemented Laravel Queues for background processing and improved workflow automation.

Developer at Ecommerce/Magento 1.x

August 1, 2014 - February 1, 2016

Developed and customized Magento 1.x ecommerce websites, including themes, modules, and extensions; integrated payment gateways, shipping modules, and third-party APIs; optimized caching and database queries for performance.

Wordpress/WooCommerce Developer at Intersoft Professional

July 1, 2011 - May 1, 2014

Customized WordPress themes and plugins; implemented WooCommerce features (cart, checkout, orders); integrated payment gateways and shipping solutions; optimized SEO, performance, and mobile responsiveness.