Shubham Singh

Lead MERN Engineer with 6+ years in scalable web applications, performance optimization & real-time

Concentrix

A.C Patil College Of Enggineering

Mumbai, Maharashtra, India

Since April 24, 2026

About

Senior Software Engineer with 8 years of experience designing and architecting scalable web applications using the MERN stack. Skilled in performance optimization, large-scale refactoring, and building real-time systems handling high-volume user interactions. Strong expertise in system design, database optimization, and feature architecture to deliver efficient, maintainable solutions. Experienced in DevOps and cloud-native practices, including Docker, Kubernetes, and CI/CD, enabling reliable and scalable deployments. Proven track record of driving technical improvements, mentoring teammates, and delivering high-quality software solutions.

Top Skills

React.jsCSSReact Nativejest

Skills

React.jsJavaScriptreduxAWSjestmicroserviceGraphqltypescriptDockerCSSReact NativeCiCdKubernetes

Education

A.C Patil College Of Enggineering

B.E (CS) · Computer Science

August 1, 2014 – June 30, 2018

Experience

Concentrix

Sr. Software Engineer

January 1, 2025 – Present

India

CredWault Fintech Pvt. Ltd

Full Stack Developer

April 1, 2022 – January 1, 2025

Mumbai, Maharashtra, India

Xcitech Technologies

MERN Stack Developer

October 1, 2020 – March 1, 2022

Mumbai, Maharashtra, India

Wedupp Pvt. Ltd

Front End Developer

April 1, 2019 – May 1, 2020

Mumbai, Maharashtra, India

Key Strengths

Extensive experience (6+ years) in MERN stack development, aligning well with the Lead MERN Engineer target role.
Demonstrated ability in performance optimization, including real-time message delivery (Socket.IO migration), API call reduction, database query optimization, and UI rendering improvements (windowing/virtualized rendering).
Strong background in system design and architecture, evidenced by implementing optimized group permission systems, scheduled backups, and automated cron jobs.
Proficiency in cloud services, specifically AWS (EC2, S3, signed URLs), for deployment, hosting, and secure data management.
Experience with GraphQL, enhancing API flexibility and efficiency in a full-stack MERN application.
Solid understanding and implementation of Role-Based Access Control (RBAC) for enhanced security and user management.
Practical experience with unit testing using Jest and React Testing Library, indicating a focus on code quality and reliability.

Cultural & Operational Fit

Cultural Fit Analysis

Based on the psychometric test score of 0, there is insufficient data to assess cultural fit, including aspects like work attitude, stress handling, and team collaboration.

Soft Skills & Operational Fit

AI is analyzing your overall score…

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Key Strengths

Extensive experience (6+ years) in MERN stack development, aligning well with the Lead MERN Engineer target role.
Demonstrated ability in performance optimization, including real-time message delivery (Socket.IO migration), API call reduction, database query optimization, and UI rendering improvements (windowing/virtualized rendering).
Strong background in system design and architecture, evidenced by implementing optimized group permission systems, scheduled backups, and automated cron jobs.
Proficiency in cloud services, specifically AWS (EC2, S3, signed URLs), for deployment, hosting, and secure data management.
Experience with GraphQL, enhancing API flexibility and efficiency in a full-stack MERN application.
Solid understanding and implementation of Role-Based Access Control (RBAC) for enhanced security and user management.
Practical experience with unit testing using Jest and React Testing Library, indicating a focus on code quality and reliability.

Cultural & Operational Fit

Cultural Fit Analysis

Based on the psychometric test score of 0, there is insufficient data to assess cultural fit, including aspects like work attitude, stress handling, and team collaboration.

Soft Skills & Operational Fit