// data scientist · trading × ai × defi · tel aviv

I build AI that moves real money— and teach teams to trust it.

Data Scientist at eToro. I build production AI across the stack — deep reinforcement learning, neural networks and LSTM models, LLM agents, and on-chain DeFi systems — on a foundation of real trading, hedging and execution expertise. Then I sit with the desk and get them to adopt it.

~/graham — focus_2026
# what I'm doing right now
graham@trading:~$
deep RL · ANN/CNN · LSTM · GARCH multi-billion-$ recon, automated DeFi: mint/burn · smart contracts · MEV-safe 21-course trading academy, shipped
// the arc

Three phases. One compounding story.

I didn't jump to AI. I built the quant and ML foundations, learned the revenue side, and now ship AI and DeFi on top of both — which is exactly what makes the work credible.

PHASE 01

Hedging, Execution & ML

Built hedging algorithms with Random Forest and LSTM models, ran execution research, and modelled volatility and regime change with GARCH on full L2 order-book data.

PHASE 02

Revenue & Client Engagement

Shipped an A/B-tested neural-network churn model and deep-RL portfolio construction, plus revenue and client-engagement analytics that connect models to the P&L.

current
PHASE 03

AI Agents, DeFi & Adoption

Ship production AI agents and on-chain DeFi systems for trading — and embed with teams to get the whole desk adopting AI safely.

Operating altitude: technical execution + leverage creation — building the system and getting people to use it.
MSc Artificial Intelligence Distinction · University of Bath BSc Mathematics First Class Honours · Northumbria University
// what I do

Three deep domains, one rare combination.

Advanced ML. Real trading and hedging. Modern DeFi. Most people have one — the value is in holding all three, and in getting teams to actually adopt what I build.

Machine Learning & AI

Deep reinforcement learning, neural networks (ANN/CNN), LSTM/RNN and ensemble models — plus production LLM agents. From portfolio RL and volatility models to agents that reason over live trading data.

Trading, Hedging & Execution

Real quant-finance depth: hedging and execution algorithms, derivatives pricing, market microstructure, GARCH/regime models and multi-billion-dollar reconciliation. The domain knowledge that makes the AI trustworthy.

DeFi & On-Chain

Tokenizing assets on-chain via mint and burn, writing Solidity smart contracts and on-chain liquidation bots, and engineering them to resist MEV and sandwich attacks across EVM and Solana. Modern crypto, built robustly.

the 2026 skill

AI Adoption & Enablement

I embed with teams doing manual work, build the agent around their workflow, automate it — then teach them to run and extend it themselves. Build, hand over, multiply.

// selected work

Systems I've built and shipped.

Production work across ML, AI agents, DeFi and a full learning platform. Internal systems are described at a deliberately high level — no confidential figures or names.

// projects
Machine learning & quant research · production
advanced ML · trading

Models that trade, hedge and predict

A body of production machine-learning work applying deep learning, reinforcement learning and classical ML to real trading and client problems.

  • Deep reinforcement learning for portfolio construction — increasing revenue while cutting computational latency.
  • Hedging algorithms built on Random Forest and LSTM/RNN models, reducing trading costs and improving risk management.
  • Neural-network churn model identifying users at risk of cashing out, validated to statistical significance via A/B testing.
  • GARCH volatility & regime models plus liquidity analysis on full L2 limit-order-book data to inform trading decisions.
Deep RLANN / CNNLSTM / RNN Random ForestGARCHPythonPySpark
AI reconciliation platform · built, automated & handed over
AI agents · adoption

Reconciliation that explains itself

An AI-powered platform that explains multi-billion-dollar daily position breaks across multiple liquidity providers in seconds — built with the team that used to do it by hand.

  • Embedded with the operations team: sat with the people doing the manual reconciliation, mapped their real workflow, and built the agent around how they actually work.
  • Structured investigation: every break is classified through a fixed, auditable checklist with a documented root cause — so no two analysts give a different answer.
  • Automated the grind: replaced hours of manual detective work with same-day, explainable answers across multiple providers.
  • Handed it over: taught the team to use, trust and extend the agent themselves — they now maintain and update it without me in the loop.
LLM agentsPythonDatabricks AzureDelta / Unity CatalogSQL
Hedge-cost reporting agent · built, automated & handed over
AI agents · adoption

Daily hedge cost, on tap

An automated agent that reconciles and reports hedging cost across every asset-class book each day, with anomaly detection and self-service dashboards — now run by the desk itself.

  • Understood the manual process first: worked alongside the desk doing the slow, error-prone monthly reconciliation before automating a single step.
  • Full coverage: server-side pipelines compute per-instrument hedge cost across equities, commodities, indices, FX and crypto books daily.
  • Signal over noise: a rule-based anomaly engine separates genuine cost spikes from data artifacts, with failsafe auto-rollback safeguards.
  • Enabled the team: showed them how to query, validate and update the agent with AI — so the desk now owns and evolves it.
PythonDatabricks SQLPlotly GitHub Actionsanomaly detection
Tokenization & DeFi infrastructure · on-chain
DeFi · smart contracts

Tokenized assets, smart contracts & liquidation bots

Hands-on DeFi engineering: tokenizing assets on-chain and building the smart-contract infrastructure around them — shipped and working.

  • Asset tokenization: mint and burn token wrappers for real assets on-chain across EVM and Solana.
  • Solidity smart contracts: design and write production smart contracts, including on-chain liquidation bots that keep DeFi positions healthy.
  • MEV-resistant by design: engineered to defend against MEV and sandwich attacks during execution.
  • End-to-end DeFi: from contract to execution — demonstrating deep, practical understanding of modern crypto infrastructure.
SoliditySmart contractsMint / Burn Liquidation botsEVM / SolanaMEV-resistant
eToro Trading Academy · live full-stack platform
full-stack · education

A trading academy, beginner to quant

A complete learning platform that takes someone from their first order through to mathematically rigorous advanced material — 21 live courses across trading, derivatives, execution, microstructure, portfolio construction, crypto/DeFi and compliance.

  • Breadth of content: 21 courses spanning execution algorithms, advanced options & derivatives, quantitative strategies, market microstructure, factor investing, crypto/DeFi (stablecoins, perps, yield) and compliance.
  • Real full-stack engineering: a single FastAPI service serving a React/Tailwind portal and an embedded interactive Execution Lab, backed by Lakebase Postgres on Databricks Apps with Azure AD SSO and RBAC.
  • Built-in AI tutor and a content schema that lets subject experts author courses without touching React — plus CI design-contract gates, accessibility (WCAG AA) and a full test pyramid.
  • Consolidated my earlier options-pricing and execution-research tools into one cohesive, governed platform.
FastAPIReactTailwind Databricks AppsLakebase / PostgresAzure AD SSOCI/CD
// the differentiator

Building AI is half the job.
Adoption is the other half.

In 2026, the scarce skill isn't writing the agent — it's getting a non-technical desk to trust it, use it, and own it. My agents don't sit on my laptop: I embed with the team, build around their real workflow, automate the manual grind, and then teach them to run and extend the tool themselves — so my work multiplies instead of creating a dependency on me.

01Sit with the team

Watch the manual work, learn the edge cases, map how they actually operate.

02Build around it

An agent that fits their workflow — explainable, with guardrails they can trust.

03Automate the grind

The slow, error-prone manual steps disappear; answers arrive in seconds.

04Hand it over

Teach them to use, validate and extend it with AI — they own and update it themselves.

01

Domain AI for ops users

Teach the desk to ask reliable questions of internal AI agents — and understand the limits of each answer.

02

GitHub for non-engineers

Access docs, follow setup steps, and report issues — without needing to be a developer.

03

Cursor & Claude Code setup

Practical, safe setup for power users to edit scripts and debug with AI in the loop.

04

Databricks + AI analysis

Query and summarize trading data responsibly, with the guardrails that keep it safe.

05

Safe prompt & review patterns

How to avoid over-trusting AI — verification habits, and a clear "what not to do" for sensitive data.

06

Office hours, not a one-off launch

Ongoing, low-friction support that meets people in their real workflow — reducing fear, building momentum.

// the stack

Tools I reach for.

Machine Learning & AI

Deep RLNeural nets (ANN/CNN)LSTM / RNNRandom ForestGARCHLLM agentsRAGPrompt eng.

Languages

PythonRSQLSolidityTypeScriptMatlabMathematica

Data & Cloud

DatabricksAzurePySpark / Spark SQLLakebaseDelta LakeTableau

Quant & Trading

HedgingExecution algosDerivatives pricingMicrostructureL2 order bookPortfolio constructionReconciliation

DeFi & Crypto

TokenizationSmart contractsMint / BurnLiquidation botsMEV-resistantEVM & Solana

Web & Delivery

FastAPIReactNext.jsTailwindPlotlyDockerCI/CD
// let's talk

Building AI into a finance team?
That's exactly my lane.

Advanced ML, production AI agents, DeFi engineering — or getting a team to actually adopt AI. Happy to compare notes.