Skip to content
View neerazz's full-sized avatar
๐Ÿ 
Working from home
๐Ÿ 
Working from home

Block or report neerazz

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Maximum 250 characters. Please don't include any personal information such as legal names or email addresses. Markdown supported. This note will be visible to only you.
Report abuse

Contact GitHub support about this userโ€™s behavior. Learn more about reporting abuse.

Report abuse
neerazz/Readme.md
Header Typing SVG

LinkedIn Medium Website Email


Profile Views GitHub followers GitHub stars


๐ŸŽฏ About Me

Coding

name: Neeraj Kumar Singh
location: San Francisco Bay Area, CA
current_role: Staff Software Engineer @ Meta Reality Labs
focus: Building the infrastructure that powers Quest VR & Ray-Ban Stories

experience:
  total_years: 15+
  companies: [Meta, Wayfair, JPMorgan Chase, American Express]
  specialty: "Distributed Systems ร— GenAI ร— Developer Experience"

mission: |
  Making developers 10x more productive through intelligent 
  automation that actually works at scale.

fun_fact: "My code has saved enough compute hours to power 
           a small city for a day โšก"


๐Ÿ† Impact at Scale

๐Ÿ’ฐ $386K/year โšก 95% Automation ๐Ÿ“Š 150M+ Daily ๐Ÿ”ง 8,500+ Services
Cost savings from UBM Migration effort reduction Build requests served AR/VR infrastructure

๐Ÿš€ Career Highlights

๐Ÿฅฝ Meta Reality Labs

Staff Software Engineer | 2024 - Present

Leading the modernization of CI/CD infrastructure for Quest VR and Ray-Ban Stories.

Key Achievements:

  • ๐Ÿค– GenAI Migration Tool - Industry-first automation achieving 95% manual effort reduction
  • ๐Ÿ“ฆ Unified Build Model (UBM) - Serving 150M+ build requests/day with 99.9% reliability
  • ๐ŸŽฏ Developer Productivity - 60% faster iteration cycles, 55% fewer on-call incidents
  • ๐Ÿ“š Trained 50+ engineers on GenAI integration with 92% post-workshop success rate

๐Ÿ›‹๏ธ Wayfair

Technical Architect | 2022 - 2024

Architected next-generation identity & security platforms serving 50M+ customers.

Key Achievements:

  • ๐Ÿ” Unified Identity Platform - 125M+ API calls/week, 99.97% uptime
  • ๐Ÿ›ก๏ธ DevSecOps Platform - 50M+ security checks/month, 40% faster incident response
  • ๐ŸŽฏ Selected as 1 of 3 architects (from 50+ candidates) for $50M+ security roadmap
  • ๐Ÿ‘จโ€๐Ÿซ Mentored 20+ engineers, 8 promoted to senior/staff positions

๐Ÿฆ JPMorgan Chase

Senior Software Engineer | 2019 - 2021

Core technical leader for $40B+ escrow management platform.

Key Achievements:

  • ๐Ÿ’ณ Payment Microservice - Processing 10,000+ daily transactions with saga patterns
  • ๐Ÿ”— Data Integration - Unified 3 legacy systems, 30% reduction in support calls
  • ๐Ÿ”’ Auth Framework - Adopted by 18+ development teams across CIB division

๐Ÿ’ณ American Express

Senior Software Developer | 2011 - 2019

Led modernization of International Insurance Services platform.

Key Achievements:

  • ๐Ÿ”„ Monolith โ†’ Microservices - 60% code reduction, 66% faster response times
  • ๐ŸŒ B2B Integration - 2M+ monthly API calls across 15+ carrier partners
  • ๐Ÿ“ฑ IVR Integration - 100K+ monthly self-service calls, 20% reduced call center load

๐Ÿ’ก Open Source Impact

Projects Helping Thousands of Developers Worldwide ๐ŸŒ

FAANG Interview Prep - Comprehensive coding interview solutions

Stars Forks Issues

  • ๐ŸŽฏ 1,650+ stars from engineers worldwide
  • ๐Ÿ“ Solutions for LeetCode, HackerRank, competitive programming
  • ๐Ÿ† Used by engineers who landed at FAANG companies

System Design Playbook - Curated resources for system design interviews

Stars Forks

  • ๐Ÿ“š 50+ forks and growing
  • ๐Ÿ—๏ธ Real-world architecture patterns & case studies
  • ๐ŸŽ“ Comprehensive system design interview preparation

๐Ÿ“Š Contribution Overview


๐Ÿ› ๏ธ Technical Arsenal

Languages & Frameworks

Java Python TypeScript Go Kotlin

Spring Boot FastAPI React Node.js

Cloud & Infrastructure

AWS GCP Kubernetes Docker Terraform

Data & Messaging

Kafka PostgreSQL Redis MongoDB GraphQL

AI & DevOps

OpenAI LangChain GitHub Actions Jenkins ArgoCD


๐Ÿ“ Latest Writing

Sharing insights from building systems at scale

Read More on Medium


๐Ÿ“ˆ GitHub Analytics



๐Ÿ… Achievements & Recognition

๐ŸŽฏ Career Highlights

๐Ÿ† Achievement ๐Ÿ“ Context
Selected as Tech Lead for org-wide CI/CD modernization Meta Reality Labs (2024)
1 of 3 Principal Architects chosen for $50M+ security roadmap Wayfair (2023)
Created organizational standard for GenAI-powered migrations Meta Reality Labs (2024)
Built platform serving 20M+ customers with 99.97% uptime Wayfair (2022-2024)
Pioneered policy-as-code framework with 97% precision Wayfair (2022-2024)
Open source contributions with 1,650+ GitHub stars Ongoing

๐ŸŽฒ Beyond the Code

Life isn't all about code... okay, maybe it is, but here's what keeps me human:


๐Ÿถ Dog Dad
Proud parent of Byte,
a mischievous beagle

๐ŸŽฎ Retro Gamer
Still speed-running
Contra on NES

โœˆ๏ธ Digital Nomad
Coded in cafรฉs across
5 continents

๐Ÿšดโ€โ™‚๏ธ Trail Explorer
System design on
two wheels

๐Ÿค Let's Connect

I'm always open to interesting conversations and collaboration opportunities.


LinkedIn Medium Email Calendar



๐Ÿ’ฌ Ask Me About

Distributed Systems GenAI Integration CI/CD at Scale Kubernetes Security Developer Experience System Design Career in Tech Open Source


๐Ÿ’ญ Philosophy

"The best code is the code you don't have to write.
The second best is code that writes itself." ๐Ÿค–


Popular repositories Loading

  1. FAANG FAANG Public

    Competitive programming questions.

    Java 1.9k 489

  2. faang-system-design faang-system-design Public

    This project will have System Design Resources

    HTML 176 39

  3. DS-Algo-SD-Resources DS-Algo-SD-Resources Public

    HTML 139 59

  4. system-design-primer system-design-primer Public

    Forked from donnemartin/system-design-primer

    Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

    Python 4 3

  5. CodingContests CodingContests Public

    Java 3 3

  6. Interview-Preparation Interview-Preparation Public

    Forked from yashasvigirdhar/Interview-Preparation

    Interview Preparation material for Senior Software Engineer - Android role

    2 4