FULL STACK

ENGINEER

Full Stack Engineer with 2+ years shipping production web applications end to end — React and Next.js interfaces, Node.js and Express APIs, MongoDB and SQL data layers deployed on AWS. Currently building developer tools and high-performance products.

+0
YEARS OF
EXPERIENCE
+0
PROJECTS
COMPLETED
+0
TECHNOLOGIES
MASTERED

FULL STACK,
REAL-TIME SYSTEMS

TECH STACK

REACT, NODE.JS,
NEXT.JS, MONGODB

RECENT

PROJECTS

View All Projects

SYSTEM

ARCHITECTURE

< 10ms
Multiplayer Sync
40+
Docker Runtimes
~20%
API Latency Cut
95%+
Sprint Completion
01 // ARCHITECTURE< 10ms Sync Latency

SnippetsX Real-Time OT Engine

WebSocketsNode.jsRedisOT Algorithm

Custom Operational Transformation engine enabling live multi-cursor code editing with sub-10ms peer synchronization.

Custom OT concurrency matrix preventing code race conditions
WebSocket delta streaming with client-side optimistic UI
Sub-10ms state synchronization across distributed clients
02 // ARCHITECTURE40+ Active Runtimes

Isolated Multi-Language Sandbox

DockerLinux ContainersNode.jsWebSockets

Containerized execution sandbox running 40+ programming languages in isolated Docker containers with live streaming outputs.

Ephemeral Docker container creation with strict memory & CPU limits
Real-time stdout/stderr log streaming via WebSockets
Security sandbox isolation protecting host infrastructure
03 // ARCHITECTURE~20% Latency Cut

Database Indexing & Redis Caching

MongoDBRedisExpress REST APIsSQL

Optimized complex MongoDB & SQL queries, structured Redis caching layers, cutting core application response times by 20%.

Indexed MongoDB query pipelines & payload footprint reduction
Multi-layer Redis key caching with automatic invalidation
Maintained 95%+ on-time sprint completion rate
04 // ARCHITECTURE4-Role Security RBAC

Enterprise RBAC & Stripe Checkout

JWT AuthRBACStripe APISecurity Best Practices

Implemented JWT authentication, 4-tier Role-Based Access Control (Admin, Instructor, Student, Examiner), and transactional Stripe payments.

JWT-protected routes with encrypted refresh token rotation
Stripe payment checkout webhook integrations for course sales
Granular role authorization middlewares across API routes

WORK

EXPERIENCE

Full Stack Engineer

OCT 2025 - PRESENT
Startup Coaching·Delhi, India · On-site

Build and maintain scalable full-stack applications — React/Next.js interfaces, Node.js services, REST APIs and data layers. Design and optimise data models and API contracts, cutting redundant queries and improving response times on core flows.

React/Next.jsTypeScriptNode.jsREST APIsAWSMongoDB

Full Stack Engineer

JUN 2024 - OCT 2025
Ninepages Techsolutions Pvt. Ltd.·Agra, Uttar Pradesh, India · On-site

Delivered features across 3 production applications in Agile teams, contributing to a 25% increase in client engagement. Reduced API latency by ~20% via query optimisation and caching, while holding a 95% on-time sprint completion rate. Implemented secure authentication and role-based access control with JWT, plus Stripe payment flows.

Full StackJWT AuthStripeMongoDBReact.jsNode.js

Full Stack Developer Training

2023 - 2024
Learn2Earn·Structured Training Program

Completed an intensive full-stack developer training program with structured code reviews and production-style project specs. Bridged self-taught fundamentals into job-ready practice with deadline-driven builds and real-world project patterns.

JavaScript (ES6+)React.jsNode.jsMongoDBGit & GitHub

Self-taught Developer & Open Source

2022 - 2023
Independent Learning & Contributions·Remote / Independent

Worked on personal projects, built web applications, contributed to open-source repositories, and participated in coding challenges. Gained hands-on experience in web development, backend technologies, and modern web frameworks.

HTML5CSS3JavaScriptReactGitProblem Solving
Explore Full Career Experience & Credentials

PREMIUM

TOOLS

React

React

Frontend UI Library

Next.js

React Framework

TypeScript

TypeScript

Typed JavaScript

Node.js

Node.js

JS Backend Runtime

Express

Express.js

REST API Framework

MongoDB

MongoDB

Document Database

PostgreSQL

PostgreSQL

Relational Database

Redis

Redis

In-Memory Cache

Docker

Docker

Container Runtime

AWS

AWS

Cloud Services (EC2, S3)

Tailwind

Tailwind CSS

Utility Styling

Git

Git & GitHub

Version Control

EDUCATION &

CREDENTIALS

Aug 2025 – Jun 2027Dr. A.P.J. Abdul Kalam Technical University (AKTU), Lucknow
CGPA: 8.4 / 10

Master of Computer Applications (MCA)

Specializing in advanced software design, distributed cloud systems, database indexing, and system architecture.

Advanced DSASystem DesignCloud InfrastructureDBMSEnterprise Architectures
Jun 2021 – Jul 2024Dr. Bhimrao Ambedkar University, Agra
Percentage: 74.92%

Bachelor of Computer Applications (BCA)

Core computer science fundamentals: Data Structures & Algorithms, Operating Systems, Database Management Systems, Computer Networks, and Full-Stack Web Development.

Data Structures & AlgorithmsDBMSOperating SystemsComputer NetworksWeb Applications

Verified Industry Certifications

Simplilearn · 2024

MERN Stack Development

React.jsNode.jsExpress.jsMongoDBFull-Stack Patterns
Learn2Earn · 2024

Full Stack Web Engineering

Full Stack ArchitectureREST APIsDatabase Optimization

CLIENT

TESTIMONIALS

“

"Aman is an exceptionally sharp engineer. He delivered production features across multiple applications while maintaining clean architecture, reducing API latencies by ~20% and meeting sprint deadlines effortlessly."

Senior Engineering Manager
Ninepages Techsolutions Pvt. Ltd.

DESIGN

THOUGHTS

Read All Thoughts

FREQUENTLY ASKED

QUESTIONS

Aman specializes in React.js, Next.js, Node.js, Express.js, TypeScript, and Tailwind CSS, backed by MongoDB, PostgreSQL, Redis, Docker, and AWS.

GET IN

TOUCH

Response time: < 24 hrs
© 2026 Aman Kumar. All rights reserved.