Hey ! I'm
16:42:00
Sumedh Vats — Backend & Infra Engineer
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
- 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
- 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
ReelSlider
- Manifest V3 Chrome extension that injects real video controls into Instagram — seek, volume, and playback speed (0.25×–2.0×) for Reels, Stories, Feed, and Posts.
- Prototype-locks HTMLMediaElement.prototype.muted to prevent Instagram from overriding the user's audio preference; syncs mute, volume, and speed via localStorage and chrome.storage.local across sessions.
- Background service worker handles preference injection into new tabs via chrome.scripting.executeScript, syncing popup changes to all open Instagram tabs in real time.
- Keyboard shortcuts (A/S/D seek, M mute, F fullscreen) and loop section controls ([ / ] keys) for power users — all running entirely in the browser with zero external network requests.
JavaScriptChrome ExtensionManifest V3TypeScript
Brainly
- 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
Open Source
distribution/distribution (CNCF)
- 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
Go
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
900+ DSA Problems Solved
Solved 900+ algorithmic and data structure problems across LeetCode, GeeksforGeeks, and Codeforces, with strong focus on dynamic programming, graphs, greedy algorithms, and problem-solving under constraints.
LeetCode Contest Rating — 1,649
Achieved a peak LeetCode contest rating of 1,649, placing in the top tier of competitive programmers globally.
Blogs
Education
Chandigarh University
2023 – PresentB.E. in Computer Science Engineering — CGPA: 8.56 | Mohali, India
Vikas Bharati Public School
2022Higher Secondary — 82% | Delhi, India
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