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Welcome to my portfolio

Santosh Kumar

Sr. Full Stack Developer | Development-to-Deployment Expert

3+ years building scalable web applications and cloud-native solutions. Specialized in React.js, Next.js, Node.js, and AWS, delivering performant, secure, and production-ready digital experiences.
3+
Years Experience
50+
Projects Completed
5
Team Lead

About Me

I'm a passionate Sr. Full Stack Engineer with 3+ years of experience building scalable web applications and cloud-native solutions. My expertise spans React.js, Node.js, cloud infrastructure, and DevOps, enabling me to design, develop, deploy, and optimize production-ready applications with a strong focus on performance, security, and reliability.

At Codebucket Solutions, I lead the development of end-to-end web applications, architecting scalable backend services, modern frontend experiences, and cloud infrastructure. I collaborate with cross-functional teams to deliver secure, high-performance solutions while driving best practices in software engineering, DevOps, and system reliability.

Beyond code, I'm passionate about cricket, photography, and gaming. I believe in continuous learning and staying updated with the latest technologies and design trends.

Core Expertise

Full Stack Development

Building end-to-end web applications using React.js, Node.js, Express, and modern databases with a focus on scalability and maintainability.

Cloud Architecture

Designing and deploying cloud-native solutions on AWS, leveraging managed services for scalability, security, and high availability.

DevOps & Automation

Implementing CI/CD pipelines, containerization, and infrastructure automation to streamline development and deployment workflows.

System Performance

Optimizing applications, APIs, and databases to deliver fast, reliable, and efficient user experiences at scale.

Security & Reliability

Applying security best practices, monitoring, and fault-tolerant architectures to build resilient production systems.

Continuous Learning

Exploring emerging technologies in cloud computing, distributed systems, AI, and modern software engineering practices.

Quick Info

Location

Patna, India

Experience

3+ Years

Skills & Expertise

Frontend

  • React.js
  • Next.js
  • JavaScript
  • TypeScript
  • HTML5
  • Tailwind CSS

Backend

  • Node.js
  • Express.js
  • REST APIs
  • GraphQL
  • Authentication
  • Microservices

Cloud & DevOps

  • AWS
  • Docker
  • Kubernetes
  • CI/CD
  • Terraform
  • Linux

Databases & Tools

  • MongoDB
  • PostgreSQL
  • MySQL
  • Redis
  • Git
  • Postman

My Work Process

A systematic approach to delivering exceptional digital experiences through design thinking, technical excellence, and accessibility-first development.

01

Requirements & Architecture

Analyzing business requirements and designing scalable system architectures, APIs, and cloud infrastructure.

STEP 1
02

Backend & Database Design

Building robust backend services, designing efficient database schemas, and implementing secure APIs.

STEP 2
03

Full Stack Development

Developing responsive frontend applications and scalable backend systems using modern technologies and best practices.

STEP 3
04

Deployment & Optimization

Automating deployments, monitoring applications, and optimizing performance, security, and reliability in production.

STEP 4

Core Expertise

Full Stack Engineering

Building scalable end-to-end applications with modern frontend, backend, and database technologies.

Cloud & DevOps

Deploying and managing cloud-native applications using AWS, Docker, CI/CD pipelines, and infrastructure automation.

Performance & Scalability

Designing high-performance systems, optimizing APIs and databases, and ensuring reliability at scale.

Professional Experience

Full-Stack Developer

Codebucket Solution Pvt. Ltd.

Patna, India

  • Designed and scaled backend systems, improving application performance and reducing latency by 40% through optimization and caching strategies
  • Built and deployed containerized applications using Docker and Kubernetes for production environments
  • Developed scalable REST APIs and microservices using Node.js and modern backend technologies
  • Managed PostgreSQL and Redis infrastructure to ensure high availability, reliability, and efficient data access

Full-Stack Developer

Walsis E-Connect India Pvt. Ltd.

Patna, India

  • Led development and maintenance of high-traffic platforms including Sarthaks.com (20M+ users) and Quizard.app (200K+ users)
  • Designed scalable application architectures capable of handling millions of user interactions
  • Developed full-stack solutions using Next.js, Node.js, Fastify, and MySQL
  • Optimized application performance, database queries, and backend services to improve system efficiency and user experience

Featured Projects

Sita Dairy

A robust backend system for managing dairy operations including milk collection, inventory tracking, supplier management, and payment handling. Features secure authentication and role-based access for admins and staff.

Node.jsExpress.jsMongoDBJWTREST APIs

Bahix

An inventory management system for tracking stock levels, managing products, and handling orders efficiently. Includes real-time updates, low-stock alerts, and role-based access control for admins and staff.

ReactNode.jsExpressMongoDBREST APIs

VideoFlex

A video processing platform that allows users to convert videos into multiple formats and resolutions. Supports quality selection, fast transcoding, and efficient file handling with scalable backend processing.

Node.jsExpressFFmpegAWS S3Queue System

Manuvance Talent

A professional talent and workforce management platform designed to connect skilled candidates with employers. Features include job listings, candidate profiles, application tracking, and an admin dashboard for managing recruitment workflows.

Next.jsNode.jsExpressMongoDBTailwind CSS

RoamRipples

A travel and exploration platform that helps users discover destinations, plan trips, and explore curated travel experiences. Includes destination listings, travel guides, and a seamless user experience for trip planning.

Next.jsReactTailwind CSSNode.js

PixelForge

AI image generation platform with fine-tuning, inpainting, and style transfer. Handles thousands of daily generations.

Stable DiffusionReactNode.jsAWSS3

Let's Connect

My professional focus is on finding the next great job or project. Always open to conversations about full-time employment, contract roles, or collaboration in the React ecosystem. Drop me a line!