Simulation-Maxxing: How Nubank ships agents 20× faster with simulations
Conference Context
- Date/time: 2026-07-01 · 2:50pm-3:10pm
- Track/room: AI in Finance · Track 3
- Speaker(s): Shreya Rajpal, Aman Gupta
- Session type/status: session · confirmed
- Track: AI in Finance
- Room: Track 3
- Session type: session
- Status: confirmed
Session Description
You know how to build an agent - write a prompt, spec out some tools and call an LLM (or gateway). At this point, you probably also know how to build an agent that “actually works” using some combination of agent frameworks, eval tools and looking at your data. This talk is about building an agent much, much faster using simulations to hill-climb your agent configuration instead of grinding on real data. We’ll dive deep into a case study of how a top-5 fintech made their agent dev cycle 20x faster using simulation-driven optimization. We’ll cover: - When to use real data vs. simulations in agent building - How to design simulation environments tailored to your agent - How to automate the optimization loop so you’re hill climbing agent configurations without manual tuning
Media Evidence
Trust, but Verify: Shreya Rajpal (speaker-match related prior/adjacent AI Engineer video; captions: English auto-captions).
- Source video:
youtube-9-vGxMoUM9Y - Slide deck: Dense Slides: Trust, but Verify: Shreya Rajpal — 13 visible slide image(s); 13 HTML recreation(s).
- Additional slide evidence: Slides: Trust, but Verify: Shreya Rajpal, Reconstructed Slides: Trust, but Verify: Shreya Rajpal
- Slide-derived themes for
youtube-9-vGxMoUM9Y: current, guardrails, self, driving, cars, classical, deep, learning.

Evidence Graph
This evidence graph is generated from currently linked source material: official schedule text, related video pages, cached transcripts, visible slide text, dense/reconstructed slide pages, and AI slide-classification audits.
Media Signals
youtube-9-vGxMoUM9Y— 9 slide-derived text signals- Slide-derived themes for
youtube-9-vGxMoUM9Y: current, guardrails, self, driving, cars, classical, deep, learning. - Evidence links for
youtube-9-vGxMoUM9Y: youtube 9 vGxMoUM9Y, youtube 9 vGxMoUM9Y slides, youtube 9 vGxMoUM9Y dense slides, youtube 9 vGxMoUM9Y reconstructed slides
Agent Reading Notes
Use these signals to refine the synopsis, topic links, people/company context, and method notes. If a source is a related external video rather than an exact official recording, keep it framed as supporting evidence.
Transcript Status
Related video transcript availability: English auto-captions. Treat this as supporting context, not a recording of this exact scheduled session unless later confirmed. Not fetched yet.
People
Supporting Slides
- youtube 9 vGxMoUM9Y slides — extracted from the related public AI Engineer video.
Slide Evidence
- Slide-only cropped deck: youtube 9 vGxMoUM9Y dense slides (13 viable slide images).
- Related slide/OCR pages:
- youtube 9 vGxMoUM9Y dense slides
- youtube 9 vGxMoUM9Y reconstructed slides
- youtube 9 vGxMoUM9Y slides
- Slide-derived terms:
guardrails,source,change,llms,library,validators,self,deep,querdraie,current,cofounder,past,infra,lead,mlops,driving,cars,classical
Synthesis
Synthesized Breakdown
Simulation-Maxxing: How Nubank ships agents 20× faster with simulations ## Conference Context - Date/time: 2026-07-01 · 2:50pm-3:10pm - Track/room: AI in Finance · Track 3 - Speaker(s): Shreya Rajpal, Aman Gupta - Session type/status: session · confirmed - Track: AI in Finance - Room: Track 3 - Session type: session - Status: confirmed ## Session Description You know how to build an agent - write a prompt, spec out some tools and call an LLM (or gateway). At this point, you probably also know how to build an agent that “actually works” using some combination of agent frameworks, eval tools and looking at your data. This talk is about building an agent much, much faster using simulations to hill-climb your agent configuration instead of grinding on real data. We’ll dive deep into a case study of how a top-5 fintech made their agent dev cycle 20x faster using simulation-driven optimization.
Speaker And Company Context
- Shreya Rajpal — CEO at Snowglobe.
- Aman Gupta — Principal Machine Learning Engineer at Nubank.
Topics Covered
Derived Links And Source Material
- youtube 9 vGxMoUM9Y — related YouTube source page.
- youtube 9 vGxMoUM9Y slides — slide evidence.
- youtube 9 vGxMoUM9Y reconstructed slides — slide evidence.
- youtube 9 vGxMoUM9Y dense slides — slide evidence.
Novel Concepts / Clever Methods
- No highlighted novel concept has been detected yet.
Evidence Boundary
This synthesis is based on the official schedule and linked source pages. It should be revisited when exact session recordings or transcript-backed secondary sources are available.