Hi, I'm Malay Sarkar

Java Full-Stack Developer

Detail-oriented Java Full-Stack developer skilled in Spring Boot, React/Next.js, PostgreSQL, and AI integrations, plus CI/CD and containerized deployments across AWS, Azure, and GCP.

+91-9635573845malaysircar@gmail.comKolkata, India
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Primary Tech Stack

Java 17
Spring Boot
React
Next.js
PostgreSQL
AI
AI Integration

Technical Skills

Comprehensive expertise across the full technology stack with focus on Java backend development, modern frontend frameworks, and cloud platforms.

Backend Development

Java 17Spring BootJWT AuthenticationSpring AIHibernateJUnit 5Maven

Frontend Development

React/Next.jsTypeScriptTailwind CSSRedux/RTK QueryHTML5/CSS3JavaScript ES6+

Database & Storage

PostgreSQLHibernate ORMDatabase DesignQuery OptimizationData Migration

Cloud & DevOps

AWSAzureGoogle Cloud PlatformDockerGitLab CI/CDLinux (RHEL, Ubuntu, Debian)Shell Scripting (Bash)

Tools & Libraries

Quartz SchedulerApache PDFBoxApache POIWhatsApp Business APISwagger/OpenAPITestcontainersWireguard VPN

Multi-Cloud Experience

Experienced in deploying and managing applications across major cloud platforms with CI/CD pipelines and containerized deployments.

AWS
AWS
AZ
Azure
GCP

Professional Experience

Building scalable applications and leading development initiatives with a focus on Java full-stack solutions and AI integrations.

Software Developer

Alfalabs Technologies LLPCurrent
Aug 2023 – Present
Mumbai, India (Remote)

Key Achievements:

  • Single-handedly developing, writing test cases and maintaining the complete Robotan-Dashboard project, WhatsApp Chat Bot with AI integration (RAG) and some features of Robotan (The Automation Bot)
  • Create deployment strategies for different client's systems (Intranet, VPN, Distributed, Linux, Windows etc) and train the team on new features and deployment strategies
  • Handle the complete development life-cycle of three official company websites
  • Collaborate with Business Analyst teams to gather requirements for new features and resolve issues
  • Find and deploy open source solutions for different requirements like project management, VPN, RDC, CI/CD

Technologies Used:

Java 17Spring BootReactNext.jsPostgreSQLDockerAWSAzureGCP

Web/Software Developer

Freelancer
Feb 2021 – July 2023
Remote

Key Achievements:

  • Developed and delivered custom web and software solutions tailored to local client requirements
  • Ensured on-time completion and client satisfaction across multiple projects
  • Built responsive websites and web applications using modern technologies
  • Provided technical consultation and maintenance services

Technologies Used:

JavaSpring BootAngularMySQLJavaScriptHTML/CSS

Professional Growth

Continuously expanding expertise in emerging technologies and best practices. Currently focusing on AI integrations, cloud-native architectures, and advanced Spring Boot features.

2+ Years Professional Experience
Multiple Enterprise Projects
Full-Stack Development

Featured Projects

Showcase of enterprise applications, AI integrations, and full-stack solutions that demonstrate expertise across the complete development lifecycle.

Robotan Dashboard

Enterprise Application
Production

A comprehensive full-stack application for managing and orchestrating the Robotan automation bot ecosystem. The platform serves as a centralized dashboard for enterprise-level process automation, providing end-to-end workflow management, execution monitoring, and scheduling capabilities.

Key Features:

  • Designed and built a web dashboard that orchestrates automation workflows
  • Implemented secure authentication/authorization and multi-tier license-key generation and validation
  • Delivered real-time graphs and charts for live execution metrics using frequent API polling
  • +3 more features...

Tech Stack:

Java 17Spring BootReactNext.jsRTK QueryTailwindCSSPostgreSQLJUnit 5Docker

Robotan (Automation Bot)

AI Integration
Production

An enterprise-grade automation engine that performs web and desktop automation tasks using multiple automation libraries, frameworks and cloud APIs from GCP/Azure.

Key Features:

  • Optimized database interaction, file handling and API calling with performance improvement of ~60%
  • Implemented two-way communication systems with Robotan-Dashboard using REST APIs
  • Fetch current system info (hardware IDs like MAC) for license validation
  • +3 more features...

Tech Stack:

Java 17Spring BootDocument IntelligenceVertex AIGmail APIGoogle Drive APIOneDrive APISlack APIWhatsApp API

AI Integrated WhatsApp Chatbot

AI/ML Application
Production

Insurance chatbot using retrieval-augmented generation (RAG) to recognize returning WhatsApp numbers, instantly pull their account data, answer FAQs, and suggest renewals. New numbers enter a short form for lead generation.

Key Features:

  • Implemented custom webhook for two-way communication
  • RAG system for custom knowledge base for AI models
  • Up to 60% cost cutting on AI model usage using RAG optimizations
  • +2 more features...

Tech Stack:

Java 17Spring BootSpring AIGPT-5PgVectortext-embedding-3Meta Cloud APICustom Webhook

Corporate Websites Portfolio

Web Development
Live

Built sleek, responsive corporate sites for Alfalabs Technologies, Robotan and Mynet Insurance, each reflecting its unique brand with lead generation capabilities.

Key Features:

  • Responsive design optimized for all devices
  • Lead generation from contact forms
  • SEO optimization and Google Analytics integration
  • +2 more features...

Tech Stack:

Next.jsNode.jsGoogle APIsNodemailerTailwindCSSshadcn/uiFigmaGoogle Analytics
Alfalabs TechnologiesRobotanMynet Insurance

Medicare E-commerce Platform

E-commerce
Completed

An e-commerce platform dedicated to prescription and OTC medicines, streamlining search, ordering, and doorstep delivery with secure payment integration.

Key Features:

  • Built an online pharmacy with fast search and one-click checkout
  • Integrated Razorpay for secure payments and order tracking
  • Synced inventory in real time and flagged expiries
  • +2 more features...

Tech Stack:

Java 8Spring BootAngularMaterial UIMySQLDockerAWSRazorpay

More Projects on GitHub

Explore additional projects, code samples, and contributions on my GitHub profile. From open-source contributions to personal experiments with new technologies.

View GitHub Profile

Get In Touch

Ready to collaborate on your next project? I'm always open to discussing new opportunities, interesting projects, and innovative ideas.

Let's Connect

Whether you're looking for a Java Full-Stack Developer for your team, need consultation on a technical project, or just want to discuss the latest in software development and AI integration, I'd love to hear from you.

Location

Kolkata, India

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Currently Available

Open to new opportunities and interesting projects. Response time: Usually within 24 hours.

Send a Message

Preferred Communication

For project discussions, I prefer detailed emails or LinkedIn messages where we can outline requirements, timelines, and technical specifications. For urgent matters, feel free to call directly.

Project Inquiries: Email preferred
Quick Questions: LinkedIn DM
Urgent Matters: Phone Call