YASH

HEY, I'M

Yash Agrahari

Software Engineer, Backend

Prayagraj, Uttar Pradesh, India

Backend engineer building Node.js and PostgreSQL services. From a WebSocket-based job-processing backend to a large-file data ingestion pipeline, I handle the full cycle: design, testing, Docker, and CI/CD deployment.

"Consistent effort compounds."

ResumeGitHubLinkedIn
Open to full-time opportunities, interesting projects and collaborations.
Yash Agrahari

"Build. Learn. Improve. Repeat."

GitHub Activity

Consistent commits, small steps every day.

ContributionsView on GitHub
View on GitHub

Projects

Backend systems, developer tools and web applications I've built.

CodeCanvas screenshot
CodeCanvas Screenshot
Live

CodeCanvas

Live multi-user code editor with real-time collaborative coding capabilities

React.jsNode.jsExpress.jsMongoDBWebSocket (Socket.IO)+2
Live DemoGitHub
NoteSync screenshot
NoteSync Screenshot
Live

NoteSync

Real-time collaborative notes application with shared editing capabilities

React.jsNode.jsExpress.jsMongoDBWebSocket (Socket.IO)+2
Live DemoGitHub
Portfolio Website screenshot
Portfolio Website Screenshot
Live

Portfolio Website

Modern, responsive portfolio website showcasing projects and skills

Next.jsTypeScriptTailwindCSSshadcn/uitsParticles
Live DemoGitHub
View all projects

Experience

Where I have shipped real systems, solved real problems, and taken ownership from start to finish.

View full resume
Q

Software Engineer

QuantegiesUS-based Startup
June 2025 – May 2026
  • Built and maintained the Node.js backend for BaQLabs, a strategy backtesting platform that accepts user-submitted strategies with historical datasets, dispatches them to an execution engine over WebSockets, and tracks each job's status in PostgreSQL.
  • Fixed unreliable engine connections by adding auto-reconnect, retries with backoff, and job-state reconciliation, reducing stuck backtest jobs from roughly 5 to 10 per week requiring manual cleanup to near zero.
  • Built the market-data ingestion pipeline with schema validation and chunked streaming, loading files of 1M+ rows without memory spikes or data loss and rejecting malformed files before they reach the database.
  • Replaced manual deployments with Docker and GitHub Actions CI/CD (lint, type check, tests on every PR), cutting deploy time by roughly 70% from 30 minutes to under 10 minutes and reducing regressions reaching production.
  • Added structured logging and clear error codes per job stage, cutting time to diagnose failed backtests from roughly 1 hour to 15 minutes.
  • Wrote unit and integration tests for ingestion and job handling (roughly 70% coverage on core modules) and defined the WebSocket message contract used by the frontend for live backtest streaming.
  • Used Cursor and Claude for code generation, debugging, and refactoring to speed up delivery.
Node.jsWebSocketPostgreSQLDockerGitHub ActionsCursor AIClaude CodeTypeScript
B

Software Developer Intern

Bluestock Fintech
Aug. 2024 – Sep. 2024
  • Built and shipped 10+ RESTful APIs in Django for an IPO management platform, enabling the frontend and internal services to reliably create, update and query investor and issuer data.
  • Designed PostgreSQL schemas and validated each API workflow in Postman before merging, catching data-integrity issues early and reducing rework after integration.
DjangoPythonREST APIsPostgreSQLPostman

Skills

Technologies, frameworks, and tools I use to build production systems.

Languages
JavaScriptTypeScriptPythonC++SQL
Backend
Node.jsExpress.jsDjangoREST APIsWebSockets
Frontend
React.jsReduxZustandTanStack QueryHTMLCSSTailwindCSSShadcn
Databases
PostgreSQLMySQLMongoDBPrismaORM
DevOps & Tools
DockerDocker ComposeGitHub ActionsGit/GitHubVitePostmanVS Code

Competitive & Technical Achievements

LeetCode Problem Solver

1600+ Rating

Solved 350+ LeetCode problems with a 1600+ contest rating

GeeksforGeeks Contributor

150+ Solved

Solved 150+ coding problems on GeeksforGeeks platform

Postman API Fundamentals Student Expert

Certified Expert

Earned certification for API testing, automation and development best practices

How I Build

Engineering workflow and product development mindset.

Idea
Research
Analysis
PRD
Implementation
Test
Debug
Deploy
Improve

I start by understanding the problem, research possible solutions, and choose the technology based on what the project actually needs. I like writing the code myself, while using AI tools (Cursor, Claude Code, GitHub Copilot) to speed up implementation. I review and take responsibility for the code before shipping it.

Let's Build Something Together

I'm open to full-time opportunities, interesting projects, and conversations about building cool things.

Send a Message

Have a project in mind or just want to say hi? I'd love to hear from you.

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Find me on

Let's connect on the platforms below.

GitHubLinkedInEmailLeetCode
Prayagraj, Uttar Pradesh, India (Open to relocate)

Open to full-time opportunities, interesting projects and collaborations.

"Debug. Learn. Improve."

Frequently Asked Questions

Some quick answers to common questions.