Backend and ML systems engineer. Four years at Disney+ (Hotstar, India streaming) owning Continue Watching across phone, TV, and web, and cutting post-match traffic 72.5%, from 8 million requests a minute to 2.2 million. Finishing an MS in AI Engineering at Carnegie Mellon. Open to senior software and AI/ML roles from January 2027.
Open source: Spanish ASR recipe for ESPnet, merged (pull request #6491 · model on Hugging Face)
Pittsburgh, PA, open to relocation · Work authorization: STEM OPT (3 years)
| Work | What it is | Result |
|---|---|---|
| Spanish ASR recipe for ESPnet WAVLab, Carnegie Mellon University Open-source ML / Evaluation and debugging |
A Spanish speech recipe for ESPnet, and the evaluation bug that was too good to be true. | Dev WER 24.4%; overall test WER 56.3% under substantial domain and channel shift; 18.9% WER on the 711-utterance spontaneous-answer subset with novel speakers. PR · model |
| Continue Watching Disney+ Distributed systems / End-to-end ownership |
The tray that remembers where you stopped, for tens of millions of viewers. | 72.5% fewer home-page requests per minute after a live match (8 million down to 2.2 million in that post-match window). |
| Two-phase tray ranking Disney+ Production ML / Low-latency serving |
Ranking 200+ trays per session in 50 ms at p99. | Ranking service p99 latency of 50 ms across 200+ candidate trays per session (service latency, not end-to-end page latency). |
| pranjulgupta.com Personal project |
An assistant that can only say what the profile says. | 32 evaluation questions check retrieval and answers, including facts that are not on record (my age, Rust) and prompt-injection attempts, which must not produce an invented fact or the system prompt. live · ask it |
The assistant on my site answers only from my published profile and shows which sections it used.
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Car render in the banner adapted from (FREE) Porsche 911 Carrera 4S by Karol Miklas, CC BY-SA 4.0. Not affiliated with or endorsed by Porsche. Everything on this page is generated from the same profile file as pranjulgupta.com.