Sachin Kumar

Senior Mern Developer with 1+ years in MERN stack & AI Prompt Engineering.

ReqX Technologies

C.H +2 High School

India

Since April 25, 2026

About

Full-Stack Developer with 1.5+ years of experience building scalable web applications using Vue.js, React, Node.js, and MongoDB. Strong expertise in MERN stack, REST APIs, Prompt Engineering Claude AI Claude. Proven ability to deliver production-ready applications with performance optimization and clean architecture.

Top Skills

Express.JsReact.jsRest ApisGitSocial Media

Skills

Vue.JsReact.jsNext.JsHTML5Css3typescriptTailwind CssNode.JsExpress.JsMongoDBRest ApisGitGithubPostmanDockerNpmreduxContext ApiSQLPrompt EngineeringRestful ApisDockerScalabilityNode.JsExpress.JsSeoSocial Media

Education

C.H +2 High School

Matriculation

June 1, 2020 – May 31, 2020

Experience

ReqX Technologies

Frontend & Backend Developer

October 1, 2024 – Present

Projects

Hometown Hub – Digital Community Platform

April 25, 2026 – Present

• Built React.js frontend with 6+ pages and 25+ reusable components • Implemented JWT authentication and REST API integration • Achieved 95+ Lighthouse performance score • Developed backend APIs using Node.js and Express.js for user, post, and community management • Designed MongoDB schema with optimized queries for scalable data handling • Integrated real-time updates and notifications for improved user engagement

MarkHub – Marketing Dashboard

April 25, 2026 – Present

• Designed 6+ modules including SEO, Email, Social, and AI Analytics • Integrated external services (Google Analytics, Meta, LinkedIn) • Implemented Zustand state management and scalable backend architecture • Designed secure RBAC system for multi-user roles (admin, marketer, analyst) • Built modular backend services in NestJS with clean architecture and dependency injection • Optimized database queries and API responses for high-performance dashboard rendering • Implemented API validation, error handling, and logging for production stability

Key Strengths

Demonstrated experience with the MERN stack (MongoDB, Express.js, React.js, Node.js) through personal projects and professional experience descriptions.
Project experience includes advanced concepts such as JWT authentication, RBAC, REST API design, database schema optimization, and real-time updates.
Familiarity with modern development practices like Docker containerization, CI/CD pipelines (Vercel/Netlify), and state management libraries (Zustand, Vuex).
Experience descriptions highlight performance optimization (UI, MongoDB queries) and robust backend development (error handling, logging, validation).
Exposure to NestJS for backend development, indicating an ability to work with structured frameworks beyond Express.js.

Cultural & Operational Fit

Cultural Fit Analysis

Insufficient data for a comprehensive assessment due to a 0 score on the psychometric test. This test typically evaluates aspects relevant to cultural fit such as work attitude and team collaboration. The absence of a score prevents any meaningful evaluation in these areas.

Soft Skills & Operational Fit

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Key Strengths

Demonstrated experience with the MERN stack (MongoDB, Express.js, React.js, Node.js) through personal projects and professional experience descriptions.
Project experience includes advanced concepts such as JWT authentication, RBAC, REST API design, database schema optimization, and real-time updates.
Familiarity with modern development practices like Docker containerization, CI/CD pipelines (Vercel/Netlify), and state management libraries (Zustand, Vuex).
Experience descriptions highlight performance optimization (UI, MongoDB queries) and robust backend development (error handling, logging, validation).
Exposure to NestJS for backend development, indicating an ability to work with structured frameworks beyond Express.js.

Cultural & Operational Fit

Cultural Fit Analysis

Soft Skills & Operational Fit