Oscar Roche

Worked across MetaMask backend services, token infrastructure, extension, and mobile app to ship tokenized stocks and ETF support with Ondo Finance, and to expand intent-based trading integrations including XO and CoW Swap. • Contributed to the launch of tokenized real-world assets in MetaMask, enabling users to discover, hold, and trade tokenized stocks and ETFs directly from the wallet • Built and refined Ondo asset support across the token pipeline, including token ingestion, metadata enrichment, symbol handling, market-hours status, and wallet compatibility • Helped integrate CoW Swap intent flows for RWA trading, covering quote handling, signing and submission flows, supported-network logic, and transaction lifecycle behavior • Worked on XO Swap integration in the bridge/swap stack, including chain support, routing constraints, and intent-based execution paths for new asset types and networks • Delivered user-facing wallet improvements in both extension and mobile, including stock badges, market-open / market-closed states, token list and details UX, and trade-guard flows • Coordinated across wallet, backend, product, infra, and partner teams to ship secure, compliant, and scalable support for new financial primitives inside MetaMask

- Worked for various clients for projects including ETL pipelines on GCP, cloud platforms for connected sensors and blockchain development for financial arbitrage and refinancing

- Part of a small team that builds a platform to buy tokens backed by real-world financial assets - Development using Domain-Driven Design / Clean Architecture principles, using the functional programming framework effect-ts for the backend, and Next.js for the frontend - Led the development effort to integrate the Starknet blockchain to our product, which includes: - Developing the Starknet Spiko smart contracts in Cairo: $20M TVL as of Jan. 2025 - Building an indexer for Starknet events using Substreams in Rust - Modularizing the whole Spiko stack to use Starknet orders, using Starknet-JS among others

- Developed a Web3 open source grant distribution platform frontend from scratch, using Vite + React.js. Used Apollo + GraphQL to interact with the back-end, Tailwind for CSS, Storybook for reusable isolated components and Cypress / Playwright for E2E testing. $300K+ distributed since November 2022, mainly for the StarkNet ecosystem - Took part in the development of the backend in Rust using Domain-Driven Design principles. Used Juniper for GraphQL and the Diesel ORM - Actively challenged and improved Agile / Lean processes in the team: Kaizens, Problem Solving, Standards …

- Developed the smart contracts and their deployment pipeline as well as the minting Dapp for a several-stage NFT drop with mint-passes and whitelisting made in collaboration with a HK-based organization of artists. Demoed content to the clients frequently and planned development work. Artworks hosted on IPFS + Arweave (Truffle, Solidity, React.js, TypeScript) - Developed the DApp for an NFT drop inlcuding whitelisting for a US-based client (React.js, Brownie, TypeScript) - Developed the front-end, back-end and designed the core engine of a crypto lending platform in a 10-person team. Design and development of a Web3 sign-in / login system. Support and training for the rest of the team on technological topics. Participated in improving Agile processes over 6 months. (React.js, NestJS, TypeORM, wagmi.sh, TypeScript) - Trained other employees for use of in-house solutions and emerging Web3 technologies - Conducted numerous interviews for Mid-level and Senior dev positions

- Developed a modular microservice-based architecture to process Joko app events and data belonging to 800,000+ users in real time - using AWS Lambda / DynamoDB / Kinesis - In charge of developing a fully automated reward service from scratch, allowing users to access and instantly redeem a wide range of gift cards - Created an affiliate tracking and gathering system for users to easily get Joko points pertaining to their online purchases - Co-created the Joko Chrome Extension - Weekly participation in creation of tech team processes and events - among which Brown Bag Lunches and Tech Quality weeklies - to help foster a culture of innovation

- Lead Developer for the Bot ParionsSport PDV sports betting chatbot, in cooperation with Française des Jeux - powered by the Botfuel Bot SDK and exchanging ca. 200000 messages with more than 10000 users since June 2017 (Node.js, Python) - Lead Developer for the La Poste "Assistant Courrier" postal product recommendation chatbot, implementing advanced faceted search techniques on large databases alongside the Botfuel Bot SDK (Node.js) - Contributor to the Botfuel Bot SDK, that uses random access navigation dialogs and powerful NLP services to create flexible and conversational chatbots (Node.js) - Co-developer of the Botmeter bot message analytics platform (Node.js, MeteorJS, Elasticsearch)

- Analysis of large GPS databases to target mobile device users for advertising campaigns (SQL) - Crawling / parsing of websites for lists of points of interest (Python)

Research work on the use of automatic differentiation methods for sensitivity analyses of large oil well drilling simulations (C++, MatLab)

Research internship studying the application of differential positivity theory to the neurological Hodgkin-Huxley Model (MatLab)

Research work on the use of statistical / geostatistical methods to estimate the parameters of data generated from Cox-Ingersoll-Ross-type stochastic process simulations (R, MatLab)

One-month manual shift work experience at Bayer CropScience's Villefranche-Limas factory, on a herbicide bottling line.