MA

Marina
Arriola

founded nali ai/ml · j.p. morgan student · stanford '27
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About Me

Born and raised in San José, California. Family from Mexico. A student at Stanford with an interest in computer science and how AI can be used to solve problems. I founded NaLi because ~70% of Peru works informally, pays their bills, runs real businesses, and banks can't see any of it. The data is there, and with AI it's a matter of understanding data better. We built it, shipped it, and proved it on a live cohort.

Otherwise: intramural volleyball captain, Ballet Folklórico dancer, founder of Stanford's Migrant Farmworker Drive.

NaLi

Underwriting infrastructure for informal SMEs · 2025–26

Alt-data underwriting for LATAM lenders. Ingestion connectors normalized Yape/Plin flows, bureau pulls, and device/psychometric signals into a feature store. Linear regression with signed coefficients scored borrowers on a 300–900 scale, served via a decision API: approve/decline, limit, term, reason codes. Evaluated on AUC/Gini against a live Lima cohort. Founder & CEO.

ingest feature store score decision api
100%
repayment · live Lima cohort
$20K
pilot capital
Pear FFC
founder cohort, spring '26
NaLi score · live300–900
0 TIER
wallet flow
repayment
bills & rent
trust signals
real behavior in → one legible decision out. every factor traceable.
Built on & alongside:
LumniPaystandBees2BizBanco Pichincha Peru

Forward Deployed
Engineering · JPMC

CDAO · AI/ML · Commercial & Investment Bank

As a Forward Deployed Engineering intern within JPMorgan's Chief Data & Analytics Office, I built AI agents for a BlackRock post-trade settlement use case, translating complex operational workflows into agentic systems. I gained hands-on experience with Claude Code, Codex, RAG, knowledge bases, MCP integrations, and enterprise AI tooling. I also worked across AI use case portfolio management and knowledge management, helping teams evaluate, structure, and scale AI use cases.

HITL
decision support, human final call
E2E
traceability

Merlucas

A bilingual AI caseworker for Latino families

Merlucas uses voice and document intelligence to guide Latino families through taxes, FAFSA, and public-benefit forms — extracting and validating information, flagging missing documentation, tracking deadlines, and escalating complex cases to qualified professionals.

voice + documents extract & validate flag gaps track deadlines escalate to a pro

Named for my grandmother in Mexico, who never learned English and called my brother and me merlucas — her own blend of Marina and Lucas. She kept her family afloat through paperwork no one ever explained to her. We built this for people like her.

Personal Project

Supply Chain
Radar

Turning geopolitical noise into a trade signal

An agent that scrapes geopolitical news sources, models how those events could disrupt global supply chains, and outputs a ranked list of stocks to buy or sell based on the predicted impact.

news geopolitical event supply chain impact buy / sell signal
Also

Experience

A few other things I've done, briefly.

Now
Alumni Project Management Intern · Stanford Alumni Center Jan 2025 – present
Automated alumni databases across 10+ industries; coordinated outreach for regional events with 1,000+ attendees.
Before
CIB Summer Analyst · J.P. Morgan Chase Summer 2025
Sales & Trading, Product Development, and Fintech program. Platforms used: Fusion.
Venture Capital Researcher · Westbound Equity Partners Summer 2024
Analyzed the global AI product market (healthcare, education, housing, climate tech) to guide firmwide investment strategy.
Campaign Organizer · Sam Liccardo for Congress & Cindy Chavez for Mayor 2022 – 24
Recruited and mobilized thousands of volunteers and voters across two San José campaigns.
Policy Intern · CA Office of Youth & Community Restoration Summer 2022
Reviewed legislative reforms and case files across ~60 county juvenile justice systems.
Judicial Intern · Santa Clara County Superior Court Summer 2021
Helped organize a statewide conference on juvenile justice reform for 100+ legal officials.

Published in San José Spotlight: "Arriola: Cindy Chavez Versus the Concrete Ceiling" (Feb 2023)

Contact Me