Naveen Kumar

Fullstack Developer with 5+ years of tech experience and 9+ years of total professional experience spanning software engineering, team leadership, and retail management. Expert in React.js, React Native, Node.js, TypeScript, GraphQL (Apollo Server/Client), Redux, Zustand, Ruby on Rails, PHP/Laravel, and REST APIs. Architected and optimized MySQL/PostgreSQL schemas for LMS platforms with thousands of concurrent learners — eliminated N+1 queries, implemented indexing, and used EXPLAIN for query planning.

Deployed and managed scalable applications on AWS — EC2, S3, Lambda, RDS, CloudFront, API Gateway, IAM, Amplify, and Elastic Beanstalk. Built cross-platform mobile applications (iOS & Android) using React Native with Apollo Client for real-time GraphQL data synchronization, push notifications, and offline caching.

Enforced

TypeScript strict mode across React, React Native, and Node.js layers — reducing runtime errors and improving code reliability end-to-end. Mentored a team of 4 engineers, conducted code reviews, and established best practices for schema migrations and API versioning. Prior leadership as Team Lead at Reliance Jio and Acting Store Manager at Reliance Vision Express — demonstrates strong ownership, stakeholder management, and cross-functional collaboration.

Immediate joiner — ready for night shift / US timezone collaboration.

Software Engineer — Fullstack (React.js + React Native + Node.js + AWS) - Q2A Media / QBS Learning - Noida

(2022-04)

• Built and maintained scalable web and mobile applications using React.js, React Native, Node.js, TypeScript, and GraphQL for LMS products serving US and Dubai-based clients.
• Designed and implemented GraphQL APIs (Apollo Server) — handling queries, mutations, subscriptions, and resolver optimization to reduce overfetching.
• Developed cross-platform mobile applications (iOS & Android) using React Native with Apollo Client for real-time data synchronization, push notifications, and offline caching.
• Deployed and managed applications on AWS — EC2 for app hosting, S3 for media storage, RDS for MySQL/PostgreSQL, and CloudFront for CDN delivery.
• Architected TypeScript strict interfaces across React, React Native, and Node.js layers — reducing runtime errors and improving code reliability.
• Optimized MySQL schemas for LMS platforms with thousands of concurrent learners — implemented indexing, eliminated N+1 queries, and used EXPLAIN for query planning.
• Applied async/await concurrency patterns and event-driven architecture; resolved race conditions in multi-user session handling.
• Integrated Zustand and Redux for complex client-server state synchronization across distributed user sessions.
• Mentored a team of 4 engineers, conducted code reviews, and established best practices for schema migrations and API versioning.
• Collaborated cross-functionally with frontend, mobile, and product teams — night shift aligned with US-based clients.

Coding Instructor & Full Stack Content Developer - Camp K-12 - Gurugram

(2020-07 - 2022-04)

• Developed curriculum and taught Web Development (MERN stack), AI, and Virtual Reality — reinforcing strong systems thinking and full-stack architecture skills.
• Built hands-on exercises covering React, Node.js, database design, REST APIs, and full-stack deployment.

Acting Store Manager / Sales Executive - Reliance Vision Express Limited - Delhi

(2019-07 - 2020-07)

• Promoted to Acting Store Manager — led store operations, team scheduling, inventory management, vendor coordination, and P&L; accountability.
• Drove store-level sales growth through upselling, loyalty programs, and key customer relationship management.

Team Lead — SIM Distribution & Key Accounts - Reliance Jio Infocomm Limited - Noida

(2016-08 - 2019-06)

• Led SIM distribution team for Key Accounts across Noida — managed field executives, set daily targets, and ensured fulfilment of distribution KPIs.
• Handled key account relationships with large retailers, distributors, and corporate clients during the high-growth Jio launch phase.
• Tracked field performance metrics, prepared weekly reports, and provided leadership coaching to improve productivity and retention.

Master of Computer Applications - MCA - IGNOU, Delhi (2019 - 2023)

Bachelor of Computer Applications - BCA - IGNOU, Delhi (2015 - 2019)