a developer.
an innovator.
an ideator.
an ai-obsessed builder.
a cinephile — 840 films deep.
shubhveer.KZ3.
press R to replay the trailer
~ new delhi, india

shubhveer
singh chaudhary.

backend engineer at magicpin. i build event pipelines, merchant platforms and MCP servers — systems that quietly do a lot of work. first-author of a springer paper. terminally on letterboxd.

now playing — rival roulette LIVE
~30kvisits/mo
people are playing right now →
now playing — last film LIVE
Heat
★★★½ · 840 films →
now playing — last commit
recently
now playing — leetcode
1877knight
top 5.7% of the platform
act i — origin

a guy learning stuff. b.tech cse from NSUT — branch topper, 9.67 final sem. knight on leetcode. 840 films between deployments.

act ii — the work @ magicpin

scratch reward system 2.4M scratch cards/day · −30% db cpu

REST → kafka event-driven architecture. consumers on kubernetes, 6 partitions, bulk inserts.

merchant toggle service 730k+ events/day · 60k+ merchants

per-source routing percentage control for merchant partners.

agentengine — mcp server 5 prod stores · GKE

secure read-only access for ai agents: mysql, redis, aerospike, elasticsearch. python + fastmcp.

rsa signature auth

killed replay-attack vulnerabilities in login flows with a java digital signature service.

act iii — side quest · 01

rival roulette

spin up a rival. a side project that found an audience of its own.

~30,000 visitors / month
act iii — side quest · 02

lexidox

a word game. easy to open, hard to close.

lexidox.kz3.dev
act v — skill diary
loggedskillreleasedrating
jun2025
MCPnew release. built one for production — instantly rewatchable.
2024
★★★★★
dec2024
Kafkaan event-driven epic. saw it in production, 730k events a day.
2011
★★★★★
nov2024
Kubernetesensemble cast, great orchestration.
2014
★★★★
nov2024
Spring Boot
2014
★★★★½
sep2024
Gominimalist cinema. no unnecessary scenes.
2009
★★★★
aug2024
Google Cloud
2008
★★★★
jul2024
Redis
2009
★★★½
jul2024
Elasticsearch
2010
★★★½
mar2023
PyTorch
2016
★★★½
jan2023
MySQLa classic. holds up.
1995
★★★★
oct2022
Next.js
2016
★★★★
jun2022
TypeScript
2012
★★★★
may2022
Docker
2013
★★★★
aug2021
Javathe long-running franchise. still delivers.
1995
★★★★★
aug2021
Python
1991
★★★★½
// logged = first serious use · ♥ = favorite · ⟳ = daily driver
act iii — side quest · 03

podgen & more

llm podcast generator, u-net MRI segmentation (99% dice), and the rest of the reel.

github.com/killerz3
act iv — the paper

"Evaluation of Handwritten Answers Against a Corpus of Answer Key and Related Knowledge Base" — first author, springer, ICCCT 2025. OCR + RAG + LLM grading with less bias.

read on springer ↗
intermission — the four favorites
interstellar 2014★★★★★
2001: a space odyssey 1968★★★★★
blade runner 2049 2017★★★★★
kill bill: vol. 1 2003★★★★★
full filmography → letterboxd/killerz3
post-credits scene
got a role for me?
let's talk.
shubhveerchaudhary@gmail.com
written, directed & engineered by shubhveer singh chaudharysource code: github/killerz3film department: letterboxd/killerz3deleted scenes: vibe zone · pixel paintshot on location in new delhi, indiano LLMs were harmed in the making of this sitepress R to replay the trailer