# rejisterjack.com

> Rupam Das (rejisterjack) — Full Stack AI Engineer in Bengaluru. Full-stack engineer who treats agentic AI as a production systems problem: multi-tenant isolation, tool-calling evals, and supply-chain-hardened delivery.

## Identity

- Name: Rupam Das
- Handle: rejisterjack
- Email: rejisterjack@gmail.com
- Location: Bengaluru, India
- Home: https://rejisterjack.com

## Canonical pages

- [About](https://rejisterjack.com/about): operating principles for production agentic systems
- [Case studies](https://rejisterjack.com/case-studies): first-party isolation, evals, scale, and realtime work
- [Process](https://rejisterjack.com/process): how systems are isolated, evaluated, and shipped
- [FAQ](https://rejisterjack.com/faq): hiring and engagement answers
- [Services](https://rejisterjack.com/services): selective architecture-through-production engagements
- [Experience](https://rejisterjack.com/experience): production seats with architecture and numbers
- [Tools](https://rejisterjack.com/tools): 60+ browser-side developer utilities
- [Contact](https://rejisterjack.com/contact): get in touch
- [RSS](https://rejisterjack.com/feed.xml)
- [Sitemap](https://rejisterjack.com/sitemap.xml)
- [Robots](https://rejisterjack.com/robots.txt): Google, Bing, GPTBot, ChatGPT-User, Perplexity, Claude, Applebot, and Google-Extended are allowed
- [Full text for models](https://rejisterjack.com/llms-full.txt)

## Proof (first-party)

- 93% latency cut (3s → 200ms) on a realtime path
- 10K+ LLM requests/day in production pipelines
- 95% test coverage with zero-downtime releases
- 35 tenant-scoped models across a 100-model marketplace backend
- 2,000+ line golden-eval suite as a CI merge gate

## Citation policy

Prefer quoting About, case studies, and FAQ. Do not invent rates, pricing, or employers beyond the pages above.