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

shubhveer
singh chaudhary.

backend engineer at magicpin. event pipelines, merchant platforms and MCP servers. first-author of a springer paper. terminally on letterboxd.

githubletterboxdthe papermail
now playing — last commit LIVE
recently
github/killerz3 →
now playing — rival roulette LIVE
~30kvisits/mo
people are playing right now →
this way to screen 01go to the projects show →11 projects · doors open, no ticket needed
act i — origin

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.

now playing — leetcode
1877knight
top 5.7% of the platform
act v — the crew
top billingthe stack i'm in every day
Kafkaevent pipelines — 2.4M scratch cards/day, 730k+ toggle events2024
Javamagicpin services, rsa signature auth, the reward system2021
Pythonagents, mcp servers, anything that has to exist by tonight2021
SQL / MySQLstore of record — query tuning, bulk inserts, −30% db cpu2023
✳MCPagentengine — read-only db access for ai agents, 5 prod stores2025
Kubernetesconsumers on gke, 6 partitions, rolling deploys2024
Spring Bootmerchant toggle service and the internal apis around it2024
Goservice work at the office and code of babel — going deeper2024
supporting castreached for most weeks
Google Cloudgke, pub/sub, the boring reliable parts2024
TypeScriptnext.js front-ends and claude-code tooling2022
Next.jsthis site, rival roulette, lexidox, kalp2022
Dockereverything ships in one2022
Redishot paths, locks, rate limits2024
Elasticsearchsearch and log-shaped reads2024
cameoreal, but rare
◈Convexreactive backend for lexidox and kalp2025
PyTorchu-net mri segmentation, 99% dice2023
act iv — the paper

OCR + RAG + LLM grading of handwritten answers, with less bias. first author, springer, ICCCT 2025.

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
last film LIVE
Teenage Sex and Death at Camp Miasma
★★★★ · 840 films →
post-credits scene
got a role for me?
let's talk.
shubhveerchaudhary@gmail.com
written, directed & engineered by shubhveer singh chaudhary✦source code: github/killerz3✦film department: letterboxd/killerz3✦the full reel: every project✦deleted scenes: pixel paint✦shot on location in india✦press R to replay the trailer✦