Full-Stack • AI-ML & MLOps • Cloud & DevOps • System Design

Active Engineering

KRISHNENDU
GHOSAL

Specialized engineer crafting high-performance systems with expertise in Full-Stack Development, AI-ML & MLOps, Cloud Infrastructure, and Scalable System Design.

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Available

B2G / Gov-Tech

High-Security Infrastructure

View Experience

FinOps / Fintech

Cost & Yield Optimization

View Experience

B2B Enterprise

SaaS & Scalability

View Experience

B2C Digital

Consumer Experience

View Experience

Open Source

Explore My Open Source Projects

View my GitHub sponsors dashboard & contributions

Introduction

Who Am I?

A passionate engineer who transforms complex problems into elegant solutions, bridging the gap between cutting-edge technology and real-world impact.

My Journey

I'm Krishnendu Ghosal, a software engineer currently working at Ironbook AI, where I architect AI-powered solutions that process millions of data points daily.

My journey began with a curiosity about how systems work, which evolved into a passion for building them. From government tech infrastructure to fintech platforms, I've delivered solutions across diverse domains.

What drives me? The thrill of solving complex problems, the satisfaction of optimizing performance, and the impact of creating technology that genuinely improves people's lives.

Core Values

InnovationQualityScalabilityUser-Centric

Years Experience

50+

Projects Delivered

25+

Technologies

Certifications

Code is poetry, systems are symphonies, and great software is the intersection of engineering excellence and user delight.

— My Engineering Philosophy

What I Bring to the Table

Full-Stack Architect

Crafting end-to-end solutions from React frontends to scalable Node.js backends

AI/ML Engineer

Building intelligent systems with LLMs, RAG architectures, and ML pipelines

Cloud & DevOps

Deploying on AWS, orchestrating with K8s, and automating CI/CD workflows

System Designer

Architecting high-throughput, fault-tolerant systems for enterprise scale

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Technical Arsenal⚡

Web Tech

Next.jsReact.jsNode.jsExpress.jsSeleniumTailwindCSSBootstrapTypeScript

AI & ML (Generative & Applied)

LLM (Gemini/GPT-4)Vector DBs (Pinecone/Milvus)LangChain & AgentsHugging FaceRAG ArchitecturePyTorch/TensorFlow

Cloud & DevOps

AWSElasticCloudDockerJenkinsGitHub ActionsGitLabKubernetesNginxpm2

Databases

MongoDBRedisPostgreSQLElasticsearch

Languages & OS

PythonBashJavaScriptJavaUbuntumacOS

Experience 💼

Full-stack Developer & AIML Engineer

Ironbook AI

B2B Enterprise

B2C Digital

Cloud & DevOps

Aug 2025 - Present7 mos

•Engineered end-to-end solutions for AI-powered services, including full-stack integration and deployment of Speech-to-Text (STT) and voice-over capabilities.
•Developed full-stack features for Customer Data Platforms (CDP) and marketing technology systems using React.js, Next.js, Python, and Node.js.
•Led the design and development of high-performance landing pages and user interfaces for seamless UX.
•Implemented scalable, event-driven asynchronous systems using pub/sub architectures and Kafka for high-volume data streams.
•Architected large-scale data migration pipelines and automated workflows using ETL tools and Argo Workflows on Kubernetes.
•Managed AI agent lifecycles using AWS SageMaker and AWS Bedrock to build and deploy sophisticated models.
•Drove CI/CD pipeline development and production scaling on Kubernetes (K8s) using Docker and AWS ECR.

Full-stack Developer

Aaizel International Technologies Pvt Ltd

B2G / Gov-Tech

B2C Digital

Cloud & DevOps

March 2025 - July 20255 mos

•Led end-to-end B2G solutions, including the Upper Atmosphere Sounding System (UASS), focusing on thermodynamic logic and atmospheric data models.
•Designed microservices architecture using Nginx routing and optimized database queries for high-throughput operations.
•Engineered scalable infrastructure using AWS Application Load Balancer (ALB) across multiple EC2 instances for fault tolerance.
•Developed intelligent web crawlers for 50+ Indian newspapers for real-time indexing and structured data extraction.
•Built a secure RBAC system integrated with AWS IAM policies across frontend, backend, and infrastructure layers.
•Oversaw the complete DevOps lifecycle, including CI/CD automation and production monitoring.

Full Stack Developer (Freelance)

Floxify

B2B Enterprise

Cloud & DevOps

Jan 2025 - Feb 20252 mos

•Deployed Next.js apps on AWS EC2, ensuring high availability and performance.
•Optimized Nginx as a reverse proxy for subdomain management, HTTPS (SSL/TLS) enforcement, and DNS routing.
•Managed process clustering via PM2 for zero-downtime restarts and efficient resource utilization.
•Automated CI/CD pipelines using GitHub Actions and self-hosted runners to streamline version control.
•Implemented security best practices, including firewalls, IAM roles, and performance monitoring.

Invincible Ocean | InvincibleMeta.AI

Total Tenure: 1 yr 7 mos

FinOps / Fintech

B2B Enterprise

B2C Digital

Cloud & DevOps

Software Developer

Apr 2024 - Dec 20249 mos

-Implemented secure private S3 bucket solutions using pre-signed URLs for controlled resource access.
-Automated CI/CD via Jenkins, streamlining deployments and development workflows.
-Orchestrated CronJobs, reducing downtime by 40% and improving server performance by 25%.
-Engineered an RBAC framework (Super Admin/Admin/User) with JWT authentication.
-Optimized MongoDB performance using Compass/Studio3T, achieving a 40% reduction in response times.

Associate Software Developer

Jun 2023 - Mar 202410 mos

-Architected and developed 350+ public and in-house APIs, enhancing client interactions.
-Managed AWS EC2 instances and S3 storage while streamlining deployment pipelines.
-Conducted rigorous API testing using Postman to ensure reliability across diverse scenarios.
-Developed a customizable IP whitelist solution to enhance client security.
-Optimized API response times through Redis cache implementation.

Cloud & DevOps Intern

EPAM Systems

Cloud & DevOps

Jan 2023 - May 20235 mos

•Managed AWS infrastructure including VPC, EC2, S3, Lambda, and IAM roles for robust cloud operations.
•Optimized ALB configurations, subnets, and security groups to enhance network efficiency and security.
•Integrated applications into Docker and Kubernetes environments, reducing deployment time by 40% through streamlined troubleshooting and documentation.
•Led performance monitoring initiatives, identifying bottlenecks to achieve a 40% improvement in system efficiency.
•Pioneered CI/CD pipeline setups using Jenkins and GitLab, accelerating software delivery by 40-50%.

Collaboration 🤝

Need a Technical Partner?

I offer part-time development and project-based services for businesses looking to scale with precision.

Available for Projects

View Freelance Works

Full-Stack MVPs

Rapidly turning business ideas into scalable, production-ready 0-to-1 products.

Next.js/React
Node.js/Python
DB Architecture

AI Integration

Embedding LLMs, RAG, and autonomous agents into your existing business workflows.

AWS Bedrock
LangChain
Vector DBs

Cloud & DevOps

Optimizing infrastructure for performance, security, and cost efficiency (FinOps).

AWS/K8s
CI/CD Setup
System Scaling

System Design

Architecting secure, high-throughput backend systems for B2B and B2G domains.

API Design
Microservices
Security Audit

Project-Based or Part-Time Payroll 💼

Looking for long-term engineering support or a quick MVP launch? I am available for 20 hours/week engagements with competitive project rates.

HIRE FOR PROJECT

Payroll Ready

Featured Projects🚀

June 2022 - Dec 2022

Pathfinding Visualizer

A dynamic visualization tool built to demonstrate Dijkstra's Algorithm. Features an interactive grid where users can set start/end points and draw walls to see real-time shortest-path calculations.

React.jsAlgorithmsCSS3

Live Demo

Aug 2024

Car Rental System

A robust Java-based application designed to manage car inventories, customer records, and rental transactions. Handles core functionalities like booking, availability checks, and returns.

JavaOOPsCar Inventory Management

GitHub

July 2024

Sort-Fusion

An interactive UI to explore and visualize various sorting data structures. Allows users to witness how different algorithms manipulate arrays in real-time.

React.jsData StructuresTailwindCSS

Live Demo

June 2022 - July 2022

Weather-App

A full-stack weather forecasting tool providing real-time updates on temperature, precipitation, and wind speed. Features hourly and weekly forecasts via API integration.

Node.jsExpress.jsReact.jsHBSCSS

Live Demo

Hungry for more
project stories?

I'm constantly building, experimenting, and breaking things. Check out my public repositories on GitHub to see the full evolution of my code and latest experiments.

EXPLORE GITHUB REPOS