Ketan Raj

Hi, I'm Ketan 👋

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Ketan Raj

About

Engineer at Emergent (YC S24). Ex-Google.

I automate my problems away. The patent committee at Google got involved once.

Beyond that: building agents, traveling, and chasing whatever's interesting this month.

Work Experience

Building agent-first systems and intelligent backends - pushing the same agentic loops I shipped at Google into the next product surface.

  • Eliminated a resource leak that was driving ~$1.4M/yr in MongoDB Atlas overspend, flattening a runaway cost curve.
  • Shipped production AI support agents on an MCP tool architecture, with authorization-gated tools that keep destructive actions out of the model's hands.
  • Built end-to-end Stripe chargeback automation: a webhook-driven decision engine replacing a fully manual finance workflow.
PythonTypeScriptLLMsAgentsPostgres

Built agent systems and secure-access infrastructure for production debugging at scale.

  • Designed and deployed a secure browser-based VM access platform that lets engineers debug production infrastructure without direct SSH.
  • Architected a Go WebSocket relay on Kubernetes that bridges browser WSS traffic to TCP VNC servers for scalable remote console access.
  • Shipped an Angular + noVNC browser console interface that replaced manual CLI workflows and improved operational accessibility by 100%.
  • Engineered 18+ AI agent systems POC's on Google ADK, FastAPI, and Vertex AI to automate NOC alert investigation pipelines - reducing manual triage by ~40%.
  • Created Dev0, an AI-driven infrastructure orchestration platform that integrates Terraform + CI/CD for automated provisioning.
  • Implemented Human-in-the-Loop safeguards to prevent destructive infrastructure mutations in automated deployments.
  • Authored Google ADK + GCP deployment documentation that cut team onboarding time by 50% and errors by 15%.
GoPythonAngularGoogle ADKFastAPIVertex AIKubernetesTerraform

Frontend modules for tax workflows - engagement, validation, and page-load wins.

  • Built the Tax Savings Deductions module in React, Tailwind, and TypeScript with structured financial input validation.
  • Drove a 30% lift in product engagement and a 40% drop in incorrect tax submissions through improved validation workflows.
  • Spearheaded a full rewrite of the Loans Summary module using React + TypeScript, enabling adaptive display of deduction categories and cutting page load time by 50%.
  • Implemented real-time updates, edit/remove workflows, and an incremental form architecture.
  • Optimized frontend rendering pipelines to improve interaction speed by 40%.
ReactTypeScriptTailwindJest

B.E. Computer Science · CGPA 7.94.

  • Certifications: AWS Cloud Technical Essentials, Web Development, Software Testing.
JavaScriptC++PythonReactThree.js
My Projects

Check out my latest work

A few favorites: agents, AI products, and full-stack builds.

GoogleMar 2025 · 3 min readGoogle SWE Exam via Cold Email & ReferralLanding an interview at Google is a dream for many, but the process can be daunting, especially if you're applying through cold emails and referrals. In this blog, I'll share my experience of applying for the Google Apprenticeship program, the online assessment (OA), and the telephonic interview round.Cold emailGoogleAdobeJul 2026 · 3 min readI Spent 90 Minutes Interviewing at Adobe. I Knew I Failed in the Last TwoThere is a quiet, specific moment in a tech interview when you realize you aren't getting the job. It does not always happen when your code throws a runtime error or when your mind goes blank on an edge case. Sometimes, it happens right at the end.System designAdobeEmergentApr 2026 · 8 min read10AM. Empty Office. Team Lead. And the Interview Question I Didn't Expect to Nail.How I used Antigravity, owned every line of generated code, and walked out of my first Emergent round feeling like I actually belonged there. 10AM - I'd been bracing for the standard afternoon slot.ArchitectureEmergentInfoEdgeApr 2026 · 3 min readHow I Tackled InfoEdge's First Round: A Simple File System That Wasn't So SimpleMost coding rounds try to test your syntax. This one tested how you think. InfoEdge's first round looked deceptively simple at first glance - a basic file system problem. But the moment you start peeling layers, you realize it's about designing something scalable, clean, and efficient.Data structuresInfoEdgeBlinkitMar 2026 · 4 min readI Walked Into a System Design Interview… and Walked Out With a Reality CheckMost interview stories online end with 'and then I cracked the interview.' The interviewer joined the call - an SDE-3 who had spent the last 8 years at Zomato and Blinkit.System designBlinkitBlinkitFeb 2026 · 3 min read35 Minutes to Success?: My SDE-1 Interview Experience at BlinkitThe calendar invite said 60 minutes. The interview ended in 35. Looking back at the session, it was a whirlwind of logic, quick pivots, and 'Aha!' moments that I wanted to document while it was still fresh.SDE-1BlinkitClear (ClearTax)Apr 2025 · 3 min readClearTax (Now Clear) ~ Interview Experience for the Integration Engineer RoleApplying through a referral often speeds up the hiring process, but that wasn't the case for me at ClearTax (now Clear). A friend who was already working there referred me for the Integration Engineer role. However, after waiting for over a month without any updates, I had almost lost hope of getting a call.ReferralClearClear (ClearTax)Apr 2025 · 2 min readMy Journey from Integration Engineer to Software Developer at ClearTaxAfter joining ClearTax, I soon realized that my role wasn't what I had expected. It involved a lot of client interactions, which I didn't enjoy as much as coding. So, I had a chat with my manager and the Senior Engineering Manager of the software development team.Internal moveClearBlinkitApr 2025 · 4 min readPart 2: The Final Round - A Test of Logic and Adaptability ~ BlinkitAfter my technical round, I was left in a state of anticipation. Would I get the final call or not? The uncertainty lingered for two days, and just as I was beginning to doubt, my phone rang.Final roundBlinkitMyntraMar 2025 · 3 min readMyntra SDE-1 Frontend Interview ExperienceLanding an interview opportunity at Myntra for the SDE-1 Frontend role was an exciting experience. In this blog, I'll walk you through the Online Assessment (OA) round, covering the questions asked, my approach to solving them, and key takeaways.FrontendMyntraBlinkitFeb 2025 · 4 min readMy Frontend Interview Experience at Blinkit: A Smooth Yet Challenging Ride ~ Part-1Interviews often feel like stepping into the unknown. Each interaction offers a chance to learn and grow, whether it ends in success or becomes a stepping stone for future opportunities.FrontendBlinkit
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