Sumedh Vats

20, he/him |

from India.

backend and infra first engineer writing Go and Node. i care about latency, correctness, and systems that scale without drama. i also write CLIs :)

Projects

pasteCTL

paste.sumedh.app ↗github ↗blog ↗

Full-stack code sharing platform with monorepo architecture supporting real-time collaborative editing via WebSocket, achieving 56% test coverage with comprehensive integration testing.
RESTful API server in Go using Gin framework with PostgreSQL for data persistence, implementing efficient CRUD operations and real-time update propagation across concurrent sessions.
Deployed scalable infrastructure on AWS with backend on EC2 (t3.micro) and frontend on Vercel, configuring CI/CD pipelines for automated deployments with zero-downtime releases.
Companion CLI tool in Go with Cobra framework for terminal-based paste management and automation, implementing syntax highlighting for 10+ languages with configurable expiration and raw API endpoints.

GoGinNext.jsTypeScriptPostgreSQLWebSocket

rate-limiter-go

github ↗blog ↗

Production-ready rate limiting library achieving ~15M operations/second on single-core benchmarks, with 60-70ns/op latency under concurrent workloads and 93% test coverage across all modules.
Implemented 3 algorithms (Token Bucket, Sliding Window Counter, Leaky Bucket) with pluggable storage backends supporting both in-memory and distributed Redis architectures.
Designed atomic Redis operations using Lua scripts to ensure consistency under high concurrency, eliminating race conditions in distributed systems with even 100+ concurrent servers.

GoRedisLuaDocker

Brainly

github ↗

Collaborative note-taking platform supporting content creation, organization, and embedding of social media content (YouTube, Twitter, Reddit) with real-time synchronization capabilities.
RESTful backend with Node.js and Express.js following MVC design pattern, implementing efficient MongoDB queries for content retrieval and user data management.
JWT-based authentication system with secure token generation and validation, ensuring role-based access control for shared workspaces.

Node.jsReact.jsTypeScriptTailwind CSSMongoDB

View all projects →

Open Source

distribution/distribution (CNCF)

PR #4721 ↗repo ↗

Fixed log formatting bug in the proxy registry; addressed security review feedback from a core maintainer by implementing URL sanitization via Redacted() to prevent credential leakage in logs. PR #4721 merged into main.

GoCNCFDocker Registry

Skills

JavaScript

TypeScript

Java

Node.js

Express.js

Gin

React.js

Next.js

Tailwind CSS

PostgreSQL

MongoDB

Redis

AWS (EC2)

Docker

Linux

Bash

OAuth2

JWT

Git

Achievements

750+ DSA Problems Solved

Solved 750+ algorithmic and data structure problems across LeetCode, GeeksforGeeks, and Codeforces, with strong focus on dynamic programming, graphs, greedy algorithms, and problem-solving under constraints.