Krishnendu
Engineer by craft,
builder by instinct.
It started with wondering how systems work. Now I build the ones behind gov-tech, fintech and AI products.
From government-tech infrastructure to fintech platforms, I've delivered across diverse domains, driven by the thrill of solving complex problems, the satisfaction of optimizing performance, and the impact of technology that genuinely improves people's lives.
“Code is poetry, systems are symphonies, and great software is the intersection of engineering excellence and user delight.”
How I work ✦
Production over demos
AI that ships and holds up under real users, not just a notebook that impresses once.
Voice AI: speech in, speech outRead the case studyMeasure, then optimise
Profile before refactoring. Numbers before opinions, so the fix lands where it matters.
A secure, fast API platform for fintech productsRead the case studySecurity is architecture
Access control designed in from the first schema, not bolted on before launch.
RBAC done right: roles, permissions, JWTs and least privilegeRead the blogAutomate the path to prod
If a person does it twice, a pipeline does it next. Releases should be boring.
Zero-downtime deploys: from a single VM to KubernetesRead the blogWhere I've built things.
From a cloud internship in 2023 to building AI platforms today. Scroll to travel the journey.
EPAM Systems
Jan 2023
01 / 05 · Jan 2023 - May 2023
EPAM Systems
Tenure · 5 mos
40%
Faster deployments
40-50%
Faster software delivery
Stack
Cloud & DevOps Intern
- 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%.
02 / 05 · June 2023 - Dec 2024
Invincible Ocean Pvt Ltd
Tenure · 1 yr 7 mos
25%
Server performance gain
40%
Faster MongoDB responses
40%
Less downtime via CronJobs
Stack
Software Developer
Apr 2024 - Dec 2024 · 9 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 2024 · 10 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.
03 / 05 · Jan 2025 - Feb 2025
Floxify
Tenure · 2 mos
Stack
Full Stack Developer (Freelance)
- 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.
04 / 05 · March 2025 - July 2025
Aaizel International Technologies Pvt Ltd
Tenure · 5 mos
200+
Newspapers monitored in real time
60
Government ministries served
Stack
Full-stack Developer
- Led end-to-end B2G solutions for government clients, from domain modelling through to production.
- 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.
- Built the crawlers behind a media-monitoring platform for 60 Indian government ministries, covering 200+ newspapers, YouTube, Twitter/X and more with real-time indexing and structured extraction.
- Engineered the data pipelines for all crawlers, built speech-to-text and text-to-speech APIs, and led prompt engineering for the platform's AI features.
- 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.
05 / 05 · Aug 2025 - Present
Ironbook AI
Current role
Stack
Full-stack Developer & AIML Engineer
- 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.
Featured projects.
A few favourites, from AI-powered products to algorithm visualizers. Everything else lives on the projects page.
No. 01/ 04· Live
StockX AI Portal
A professional stock research platform with live pricing, AI-generated market recaps, news with AI sentiment, advanced charting, earnings analysis and watchlists, all in one unified portal.
Next.jsAI RecapsAI SentimentLive Market DataVercelNo. 02/ 04· Live
LMS Portal
A hybrid online-learning portal: a production-level EdTech platform for courses and learners, built on the modern Next.js stack with TypeScript, Tailwind CSS and MongoDB.
Next.js 15TypeScriptTailwind CSSMongoDBNo. 03/ 04· June 2022 - Dec 2022
Pathfinding Visualizer
An interactive visualizer for Dijkstra, A*, BFS and DFS. Draw walls and weighted terrain, generate mazes, and watch each search explore the grid node by node, then drag the start or target to re-route live.
Next.jsTypeScriptFramer MotionTailwind CSSNo. 04/ 04· Live
SortFusion
An interactive visualizer for eight sorting algorithms, from Bubble to Quick, Merge and Heap sort. Step through every compare and swap, scrub the timeline, follow the highlighted pseudocode, or sort your own numbers.
Next.jsTypeScriptFramer MotionTailwind CSS
…and the garden keeps growing
Every repo, live demo and commit, plus the visualizers you can play with right here.
What people say.
In their own words, from LinkedIn recommendations by teammates and seniors.
Had a great time working with Krish… he always managed to deliver the features on his own.
The stack I ship with.
25+ tools across the whole lifecycle: interfaces, intelligence, infrastructure and data. Pick a leaf.
✦ 01 / 05
Web Tech
8 tools in rotation
- Next.js
- React.js
- TypeScript
- Node.js
- Express.js
- TailwindCSS
- Bootstrap
- Selenium
Certified, sealed.
The certifications that matter most to the work I do now, plus where it all began.
B.Tech in Computer Science & Engineering
Lovely Professional University · 2019 – 2023
where it all began
The whole story,
on one page.
signed, Krish
My up-to-date resume: roles, impact and the full stack across AI, cloud and full-stack engineering.
Let's create
something
Currently open to roles in Singapore, Thailand, UK, USA, India, Germany or Remote that push the boundaries of Full-stack, AI and Cloud Computing.
