AVAILABLE FOR CONSULTING

KARTAVYAPANTHI

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I architect and build high-performance systems that scale. 3+ years shipping production code across startups and enterprises — with zero down time.

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01 / ABOUT

ENGINEERED FOR SCALE

I'm Kartavya Panthi, a Senior Software Engineer and Consultant with 3+ years of experience building production systems that handle real-world traffic at scale.

My expertise spans the full stack — from crafting pixel-perfect UIs with React & Next.js, to designing robust APIs with Node.js & NestJS, to architecting databases with MySQL, MongoDB & PostgreSQL.

When I'm not consulting, I love producing educational tech content on my YouTube channel Zero Down Time.

kartavya_panthi.json
{
"name": "Kartavya Panthi",
"title": "Senior Software Engineer",
"location": "Remote / Worldwide",
"available": true,
"youtube": "@zero_down_time"
}
0+
Years Experience
0+
Projects Shipped
0+
Happy Clients
0.9%
Uptime Record
Systems Thinker
I think in architectures, not just code. Every decision optimizes for scalability, maintainability, and performance.
Zero Down Time
Deployments should be invisible to users. I build CI/CD pipelines and rollout strategies that keep services alive.
Full-Stack Depth
From PostgreSQL query optimization to React render cycles — I own the entire stack and the decisions that span it.
Educator & Creator
I run Zero Down Time on YouTube, breaking down complex engineering concepts for developers.
02 / SKILLS

MY TECH STACK

Backend

APIs, auth flows, queues, integrations, and service layers that are easy to maintain.

Node.js
NestJS
Express.js
Python / FastAPI
REST APIs
GraphQL
TECHNOLOGIES I WORK WITH
ReactNext.jsNode.jsNestJSTypeScriptJavaScriptPythonMySQLMongoDBPostgreSQLRedisDockerAWSGitGraphQLRESTTailwindPrismaJestWebpackViteGitHub Actions
CURRENTLY LEARNING
KubernetesLLM APIsORMs
03 / PROJECTS

SELECTED WORK

SaaS Product

Invoice Generation System

↗ Indian GST-ready invoice workflow

A profile-based invoicing platform for generating Indian tax-compliant invoices with CGST, SGST, and IGST support. Users can create invoices, download polished invoice files, and maintain a searchable history of every invoice under their account.

Next.jsNode.jsRedisMongoDBJavaScriptExpress
Content Management

Health News CMS & Campaign Platform

↗ Editorial CMS with dynamic campaigns

A CMS for a health news platform where editorial teams can create and manage news, blogs, and stories. The platform also supports reusable campaign templates, dynamic email template creation, and multi-channel campaign delivery.

Next.jsNest.jsMySQLTypeScript
AI Video Processing

Real-Time Subtitle & Highlight Generator

↗ Speech-to-subtitle and highlight rendering

A video intelligence workflow that generates subtitles from speech in near real time, stores generated assets in the cloud, and renders highlight clips from continuous video frames for future reference and reuse.

Next.jsNode.jsPythonFFmpegWebSocketAWS S3Whisper API
04 / CONTENT

ZERO DOWNTIME

A practical software engineering channel focused on backend systems, system design, scalability, production failures, and the decisions behind real-world architecture.

VISIT CHANNEL
112
Subscribers
38
Videos
Real-world
Engineering
@zero_down_time
YouTube Handle

Our API crashed because of one client. Here’s why

A real-world breakdown of rate limiting, Redis, API gateways, and safer 429 responses.

2.2K viewsWATCH

Serverless: The Cost Lie Nobody Talks About

When serverless helps, when it hurts, and the hidden costs engineers should plan for.

221 viewsWATCH

The Brutal Difference Between Junior and Senior Engineers

Why senior engineers are not just faster coders, but better system thinkers.

1.3K viewsWATCH

Most developers debug completely wrong

A sharper way to think through bugs instead of randomly changing code.

1.1K viewsWATCH
Practical engineering, explained visually

Backend engineering, APIs, databases, JavaScript, TypeScript, Python, system design, scalability, performance, and production lessons for engineers who want to think deeper.

@ZERO_DOWN_TIME
05 / CONTACT

LET'S BUILD TOGETHER

Got a project? A team that needs senior engineering support? An idea that needs the right technical partner?

Email directly
LinkedIn message
CURRENTLY AVAILABLE

Taking on new consulting projects for Q2 2026. Response within 24 hours.

I CAN HELP WITH
  • ▹ Full-Stack Development
  • ▹ API Architecture & Design
  • ▹ Performance Optimization
  • ▹ Code Review & Audit
  • ▹ Team Mentorship
  • ▹ Technical Leadership