2026
SAKURA
Sakura River Valley
Visit live siteAn immersive river-valley scene for hanami, with drifting cherry blossoms, a red bridge, and a quiet riverside boat.
Interactive 3DWebGLHanami
frontend engineer
I design and buildinterfaces that feelconsidered.
Software engineer building thoughtful interfaces and production systems across AI, infrastructure, and distributed systems.
Creating clear, purposeful interfaces where hierarchy, spacing, and visual language make complex products easier to understand.
Scroll down
identity
Systems,Craft &Curiosity
Identity
I'm Karan Chourasia, a software engineer with a frontend focus who cares about the space between an idea and how it feels when someone actually uses it.
I design and build interfaces that are clear, responsive, and thoughtfully crafted. I care about how products behave, how systems scale, and the small details people may never consciously notice but immediately feel when they're missing.
My work sits at the intersection of product experience and resilient engineering, turning ideas into interfaces and systems that are built to last.
selected work
Whereideasbecomeproducts.
Main proof
06
Builtforscale.
React
Next.js
TypeScript
JavaScript
Tailwind CSS
Node.js
Express
Python
FastAPI
PostgreSQL
MongoDB
Docker
Git
Vercel
Redis
React
Next.js
TypeScript
JavaScript
Tailwind CSS
Node.js
Express
Python
FastAPI
PostgreSQL
MongoDB
Docker
Git
Vercel
Redis
case studies
Problems solvedbehind thebuild.
A closer look at the engineering problems behind the work, the decisions that solved them, and the systems that emerged.
Authentication architecture
Building an Auth0 BFF architecture for Product
The problem
The platform needed one secure authentication boundary across a React frontend, backend APIs, agent services, integrations, organization access, RBAC, and audit requirements.
View case study
Machine authentication
Designing a secure PAT architecture for Product
The problem
CLI clients, automation, and external integrations cannot use a browser session, but still need durable API credentials that are revocable, scoped, auditable, and isolated to an organization.
View case study
journal
Thinking,writing,and systems.
Web performanceMedium
Web Performance Optimization: A Practical Guide to Making Websites Faster
A practical guide to faster websites, from critical rendering and responsive images to JavaScript, Web Workers, and Core Web Vitals.
Web performanceCore Web VitalsReact
Read on MediumRead →
AI infrastructureMedium
Building a Digital Twin for AI Infrastructure with Three.js and React Three Fiber
Exploring how Three.js and React Three Fiber can turn complex AI infrastructure into an interactive digital twin.
Three.jsReactAI infrastructure
Read on MediumRead →
Distributed systemsMedium
Where Backend Latency Actually Comes From: Optimizing a Distributed AIOps Platform
A practical look at tracing and reducing latency across a distributed AI operations platform.
AIOpsPerformanceDistributed systems
Read on MediumRead →
the lab
Small systemsfor thoughtfulinteractions.
A playground for motion, layout, typography, and interaction. The experiments are small by design, but each one is built to show how an interface responds.
work method
Experienceshaped byshipping.
Building production systems and leading frontend initiatives across AI-powered products, cloud infrastructure, and distributed applications.
AI systems
Intelligencethat becomesaction.
Multi-agent systems, LLM orchestration, workflow execution, evaluation, and observability — built to turn cognition into reliable systems.
1
Reason
Context, goals, constraints
2
Plan
Task routing, sequencing
3
Delegate
Tools, agents, approvals
4
Execute
Actionable workflows
5
Observe
Signals, telemetry, feedback
6
Adapt
Learning, retries, optimization
Reason
Plan
Delegate
Execute
Observe
Adapt
infrastructure
Whereinfrastructuremeetsscale.
Infrastructure
career history
What shaped my work.
A record of product development, frontend systems, and technical operations.
- Contributed to the development and maintenance of 5+ internal solutions and customer-facing products.
- Led frontend development for two core, ongoing products, working closely with product managers and backend engineers to ship features, refine workflows, and improve overall system reliability.
- Enhanced application performance by up to 30% through code splitting, caching strategies, bundle size optimization, and minimizing unnecessary re-renders.
- Integrated RESTful APIs and AI-driven model outputs into frontend workflows, improving data flow efficiency and responsiveness across dashboards and interactive components.
- Improved cross-device responsiveness and accessibility by building reusable UI components and maintaining clean, modular, and scalable frontend architecture.
Contact
Is thefirststeptowardsomethinguseful.
Have an interesting problem?