Dimitri Cole Restaino

Dimitri Cole Restaino

Solutions architecture for AI, cloud, and agentic finance.

I spent five years at AWS, most recently as a Senior Solutions Architect, and I'm now a Customer Solutions Director at Ripple, leading our North America pre-sales architects. I also run Snowy Ghost (opens in a new tab), my own company, where I build iPhone apps.

Dimitri smiling, standing on a mountain summit at night

Summit Now

What I work on now

Solutions architecture

At Ripple I lead a team of pre-sales Solutions Architects as a player-coach, advising 20+ global and regional banks on digital-asset custody and key management. Before that, at AWS, I advised ~20 enterprise accounts in financial services and healthcare, and drove 30+ cloud migrations.

AI

I've designed AI systems at Ripple and AWS: an RFP workflow on Claude with an eval harness behind it, and the AWS architecture for a multi-provider AI layer in a healthcare platform. At Snowy Ghost, I build apps like Ovenlight (opens in a new tab), which lets a coding agent put the web app it built on your iPhone.

Agentic finance

AI agents that can read a ledger and act on it. I build internal MCP servers that let an agent research XRP Ledger (XRPL) data and execute on-chain transactions.

What agentic finance looks like

The agent works through tools, calling the ledger the same way it would call any other API. The second example uses x402: the API answers "402 Payment Required", and the agent pays on the XRP Ledger and retries, with a person approving the payment before anything is signed.

An illustration with made-up testnet data, not my actual tools. Nothing here touches a real ledger.

Camp 3 2025 - now

Ripple

Customer Solutions Director
New York, NY, Aug 2025 - present

I lead our North America Customer Solutions team and build much of what we demo and teach with.

  • Lead the Customer Solutions team (pre-sales Solutions Architects) as a player-coach, carrying my own accounts and advising 20+ banks, from G-SIBs to regionals, on digital-asset strategy, custody, and key management.
  • Designed an AI RFP workflow with Claude on Amazon Bedrock and AWS Step Functions, used on 10+ RFPs. An eval harness scores every run against a principle-based rubric with golden answers built in, and a human review-and-fix loop follows.
  • Built the team's enablement stack with Claude Code: Solutions Exchange, an Okta-integrated portal for sharing and deploying demos, plus interactive Ripple Custody and Ripple Payments tutorials that cut meeting prep from days to hours.
  • Built MCP servers for internal XRPL data research and on-chain transaction execution.
  • Serve as an org AI lead for sales, running AI training for 20+ reps and building internal AI tooling.
  • Built a stablecoin and tokenized-deposit engine on Ethereum and XRPL with an iOS custody front end, and used it as the closing demo in an onsite session for a global bank's engineering leadership.

Camp 2 2020 - 2025

Amazon Web Services

Senior Solutions Architect
New York, NY, Sep 2020 - Aug 2025

Enterprise accounts and ISV partners pulled me into generative AI early.

  • Advised ~20 enterprise accounts in financial services and healthcare, driving 30+ migrations, several with SI partner Caylent, and helped secure a multi-year partnership with a blockchain ISV.
  • Designed the AWS architecture for the multi-provider AI layer in ISV partner InterSystems' IntelliCare, the first AI-native EHR to earn EU MDR Class IIa certification, and co-designed how its models were scored by clinical task.
  • Architected and scoped LLM fine-tuning on de-identified data for a mental health platform, ahead of the launch of its AI mental health companion.
  • Built agentic AI POCs that query multi-network ledger data (video) and private XRPL node infrastructure (video).
  • Delivered 40+ developer workshops, 100+ customer demos, and reference implementations, and mentored Solutions Architects and Technical Account Managers.
  • Placed first in AWS's Industries AI Heroes hackathon, representing Healthcare and Life Sciences, with a physician-inbox organizer and a doctor-facing chatbot.
  • Fed customer and partner feedback to AWS service teams on 10+ features, Claude on Amazon Bedrock among them.

Camp 1 2016 - 2020

Travelers

Tech Lead / Developer
Hartford, CT, Feb 2016 - Aug 2020

Where I learned to lead a team.

  • Led seven developers plus an Accenture delivery team, migrating legacy financial systems to API and event-driven architectures, including a partner-integration platform handling ~70% of transaction volume.
  • Organized an innovation club, developer workshops, and hackathons reaching 1,000+ participants.

Quinnipiac University

MBA and BS in Entrepreneurship & Small Business Management
Hamden, CT, 2010 - 2015

  • Competitively selected for a 4+1 BS+MBA program.
  • International coursework in France, Hungary, Italy, and Switzerland.

Snowy Ghost, my own company

I design, build and run its apps from New York, alongside my day job.

OvenlightComing soon to the App Store

Ovenlight: Your own web apps, in your pocket.

You or your coding agent built a web app. Ovenlight opens it on your iPhone behind Face ID, over a private connection to your own computer. The connector you install there is also an MCP server, so Claude Code or another agent that supports local MCP servers can publish the app, check it and read its logs.

Visit ovenlight.app (opens in a new tab)
The Ovenlight launcher on an iPhone: homemade web apps such as Recipe Box, Garden Log and Trip Planner, each with its own icon, in warm light.

GlitchLive on the App Store

Glitch: A party game of robots, humans and hidden roles.

Not everyone in the room is human. Each player is secretly dealt a role, human or robot. Humans race to find every Glitch card, while robots try to trick someone into drawing The Algorithm. A game takes 3 to 12 players, each on their own iPhone or iPad. Friends join with a five-letter room code.

Download Glitch on the App Store (opens in a new tab) Visit playglitchgame.com (opens in a new tab)

Also in development: Dimm (a calmer Home Screen) and Whengo (a weather tracker for people sensitive to heat, poor air and sun).

Visit snowyghost.com (opens in a new tab)

Skills

Architecture and cloud

Solutions and enterprise architecture, AWS (Step Functions, serverless, event-driven design), system integration, Okta and SSO, and cost optimization.

AI and LLMs

Claude API, Claude Code, Claude on Amazon Bedrock, agentic workflows, MCP, evals, and fine-tuning.

Pre-sales and enablement

POCs, demos, RFPs, workshops, partner enablement, developer advocacy, and executive communication.

Programming and APIs

JavaScript and TypeScript (React, Node.js), Python, C#, REST APIs, webhooks, WebSockets, and SDKs.

Digital assets and agentic finance

XRPL, Ethereum, tokenization, stablecoins and tokenized deposits, custody, key management, institutional DeFi, and payments.

Certifications

AWS Solutions Architect - Professional, and SAFe 4.0 Certified Scrum Master.

Chasing mountains

Most of my time off is spent in the mountains, on a snowboard or a trail.