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Hi, I’m Mayank Kumar, a passionate Full-Stack Developer specializing in MERN and AI-enabled web applications. With 5+ years of hands-on experience building robust, scalable web applications, I blend frontend flair with solid backend architecture to deliver delightful user experiences and measurable business impact. I believe in delivering high-quality, scalable software by blending thoughtful front-end design with robust back-end architectures and AI-powered features. I enjoy collaborating with cross-functional teams to turn complex problems into elegant solutions that drive real business impact.…Hi, I’m Mayank Kumar, a passionate Full-Stack Developer specializing in MERN and AI-enabled web applications. With 5+ years of hands-on experience building robust, scalable web applications, I blend frontend flair with solid backend architecture to deliver delightful user experiences and measurable business impact. I believe in delivering high-quality, scalable software by blending thoughtful front-end design with robust back-end architectures and AI-powered features. I enjoy collaborating with cross-functional teams to turn complex problems into elegant solutions that drive real business impact.

Mayank Kumar

Full Stack Developer, Front-End Developer, Web Developer, +5

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Hi, I’m Mayank Kumar, a passionate Full-Stack Developer specializing in MERN and AI-enabled web applications. With 5+ years of hands-on experience building robust, scalable web applications, I blend frontend flair with solid backend architecture to deliver delightful user experiences and measurable business impact. I believe in delivering high-quality, scalable software by blending thoughtful front-end design with robust back-end architectures and AI-powered features. I enjoy collaborating with cross-functional teams to turn complex problems into elegant solutions that drive real business impact.…Hi, I’m Mayank Kumar, a passionate Full-Stack Developer specializing in MERN and AI-enabled web applications. With 5+ years of hands-on experience building robust, scalable web applications, I blend frontend flair with solid backend architecture to deliver delightful user experiences and measurable business impact. I believe in delivering high-quality, scalable software by blending thoughtful front-end design with robust back-end architectures and AI-powered features. I enjoy collaborating with cross-functional teams to turn complex problems into elegant solutions that drive real business impact.

Available to hire

Hi, I’m Mayank Kumar, a passionate Full-Stack Developer specializing in MERN and AI-enabled web applications. With 5+ years of hands-on experience building robust, scalable web applications, I blend frontend flair with solid backend architecture to deliver delightful user experiences and measurable business impact.

I believe in delivering high-quality, scalable software by blending thoughtful front-end design with robust back-end architectures and AI-powered features. I enjoy collaborating with cross-functional teams to turn complex problems into elegant solutions that drive real business impact.

Skills

Experience Level

Expert

Expert

Expert

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Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

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Expert

Intermediate

Language

English

Fluent

Work Experience

Remote Developer

May 1, 2021 - Present

As a Senior Frontend Developer, I converted designs into HTML5/CSS3 templates and developed JavaScript animations and interactive HTML components using JQuery/AJAX. I built and maintained Checked Up’s user-facing features with React, JavaScript, HTML, and CSS. I ensured websites display and function correctly across multiple browsers and operating systems. I coordinated with cross-discipline project teams and designers on technical factors to deliver successful projects. I integrated with the RESTful API that powers the Checked Up CMS and worked closely with designers to define and refine the look and feel of Checked Up’s interactions. I ensured flawless UI functionality on all supported browsers and devices. I recommended and utilized robust new technology frameworks to power more advanced user experiences.

Full Stack Developer at Systematix Infotech

April 30, 2022 - August 18, 2025

Designed and built advanced applications for Web Platforms with React and Node framework. Leveraged native APIs for deep integrations with both platforms. Collaborated with cross-functional teams to design and develop new features. Diagnosed and fixed bugs and performance bottlenecks. Created unit-test code for robustness including edge cases, usability, and reliability. Continuously discovered, evaluated, and implemented new technologies to maximize development efficiency. Experienced working with internal and external teams.

Remote Developer

May 1, 2021 - Present

As a Senior Frontend Developer, I converted designs into HTML5/CSS3 templates and kept up to date with emerging technologies in new media, particularly design programs such as HTML5, XHTML, JavaScript, JQuery, JQuery UI, and CSS Frameworks. I developed JavaScript animations and interactive HTML components using JQuery/AJAX, built and maintained Checked Up’s user-facing features with React, JavaScript, HTML, and CSS, and ensured websites display and function correctly across multiple browsers and operating systems. I coordinated with cross-discipline project teams and consulted with designers on technical factors to ensure successful delivery of projects, integrated with the RESTful API powering the Checked Up CMS, and worked closely with designers to define and refine the look and feel of Checked Up’s interactions. I ensured UI works flawlessly on all browsers and devices supported and recommended and utilized robust new technology frameworks to power more advanced user experiences

Full Stack Developer at Systematix Infotech

April 30, 2022 - August 18, 2025

Designed and built advanced applications for web platforms with React and Node framework. Leveraged native APIs for deep integrations with both platforms. Collaborated with cross-functional teams to design and develop new features. Diagnosed and fixed bugs and performance bottlenecks. Wrote unit-test code for robustness, including edge cases, usability, and general reliability. Continuously discovered, evaluated, and implemented new technologies to maximize development efficiency. Experienced working with internal and external teams.

Developer at Checked Up

May 1, 2021 - Present

Built and maintained user-facing features, worked closely with designers and cross-functional teams to deliver cohesive and high-quality features, identified, tracked, and resolved bugs reported by users or discovered through testing. Integrated with RESTful APIs that powers the CMS of Checked Up.

MERN Stack Developer at Systematic Infotech

September 30, 2020 - October 8, 2025

Developed and maintained web applications using React.js and Node.js, ensuring high performance, scalability, and clean architecture. Implemented AI-assisted automation and machine learning integrations to streamline workflows and improve system efficiency. Optimized frontend and backend modules for responsiveness, speed, and stability across multiple platforms. Collaborated with cross-functional teams to design and deliver features with enhanced UI/UX and technical precision. Resolved performance bottlenecks and bugs, conducted robust unit testing, and adopted Agile practices for high-quality releases.

Software Engineer at Systematic Infotech

September 1, 2020 - October 8, 2025

Developed and maintained web applications using React.js and Node.js, ensured high performance, scalability, and clean architecture; implemented AI-assisted automation and ML integrations to streamline workflows and improve system efficiency; optimized front-end and back-end modules for responsive design, speed, and stability across multiple platforms; collaborated with cross-functional teams to design and deliver new features with enhanced UI/UX and technical precision; conducted robust unit testing and followed Agile practices for high-quality releases.

Software Engineer at Systematic Infotech

September 30, 2020 - October 8, 2025

Developed and maintained web applications using React.js and Node.js, ensuring high performance, scalability, and clean architecture. Implemented AI-assisted automation and machine learning integrations to streamline workflows and improve system efficiency. Optimized front-end and back-end modules for responsiveness, speed, and cross-platform stability. Collaborated with cross-functional teams to design and deliver features with enhanced UI/UX and technical precision.

Full-Stack Developer at Systematix Infotech

September 30, 2020 - October 8, 2025

Developed and maintained web applications using React.js and Node.js, ensuring high performance, scalability, and clean architecture. Implemented AI-assisted automation and machine learning integrations to streamline workflows and improve system efficiency. Optimized front-end and back-end modules for responsive design, speed, and reliability across multiple platforms. Collaborated with cross-functional teams to design and deliver new features with enhanced UI/UX and technical precision. Resolved performance bottlenecks and bugs, conducted robust unit testing, and adopted Agile practices for consistent, high-quality releases.

MERN Stack Developer at Freelance / Self-Employed

September 1, 2020 - Present

Proposed and delivered full-stack MERN-based solutions with AI-driven features; built scalable REST/GraphQL APIs, real-time interfaces with Socket.IO, and cloud deployment on AWS. Implemented CI/CD pipelines and automated testing to ensure reliable releases. Focused on performance optimization and SEO best practices while delivering robust, maintainable code and responsive user experiences.