# Gael Ollivier

> Senior Software Engineer at Stripe

Location: Lake Forest, California, United States
Profile: https://flows.cv/gael

Senior Software Engineer shaping credit-decisioning systems at Stripe. I drive high-impact, cross-functional projects that ship data-driven platforms: unlocking millions in profit, reducing losses, and elevating engineering quality. Earlier, I expanded Shippabo’s supply-chain platform, doubling the engineering team and architecting the core frameworks that power its SaaS offering. My work blends deep systems expertise with a clear focus on measurable business outcomes.

## Work Experience
### Senior Software Engineer @ Stripe
Jan 2022 – Present | Los Angeles, California, United States
- Built a fully-automated credit underwriting engine: leveraged multiple ML models and built a future-proof framework to make nuanced credit decisions at Stripe’s scale. $16 M+ incremental profit in a 5-month A/B test
- Redesigned the risk reserve money-movement rails & shipped the "reserves for platforms" API: rewrote the reserves system that moves billions of dollars annually, scaling to >1 K RPS and hundreds of thousands of writes per day. Productized the internal reserve system into a public API for platforms
- Automated the highest-volume manual credit review: cut vendor handling time by 50 %, drove 3× faster completions, and enabled rapid workflow iterations by replacing 80 % of a 20-page process with code
- Extended the underwriting platform to fraud decisioning: worked across teams to expand the credit decisioning framework to fraud, built foundational tools and pushed the project across the finish line
- Led delivery of a cross-org credit-risk backtesting framework: replaced legacy tooling, eliminated many data-integrity bugs, and provided out-of-the-box backtesting support for our future risk policies
- Team leadership & operational excellence: onboarded/mentored 4 + engineers, ran 20+ interviews, facilitated multi-team working groups, and built dashboards & go-live checklists to improve our reliability posture

### Lead Software Architect @ Shippabo
Jan 2021 – Jan 2022 | Los Angeles, California, United States
Reported directly to CTO, Implemented multiple architecture and tech changes:
- Clean Architecture + GraphQL (whole codebase)
- Typescript (whole codebase)
- CI/CD: testing strategy: unit/integration/e2e tests
- Accelerated transition from Angular to React
- Drove transition to newer bundlers: Snowpack, Vitejs
- Supporting transition to Tailwind + Design System 

Built foundational features & design practices that enabled rapid iterations & more complex features to be built on top:
- Search / filtering framework: built complex lists with filtering, sorting, full text search & csv export
- Activity Feed: tracked changes in the system and allowed clients, ops & support teams to communicate via messages ('@' mentions, email responses and delivery status)
- Report builder: config-defined reporting with plan to allow users to build their own reports & dashboards

### Senior Full Stack Engineer @ Shippabo
Jan 2020 – Jan 2021 | France

### Backend Software Engineer @ Shippabo
Jan 2018 – Jan 2020 | Los Angeles, California

### Lead Software Developer @ Etix Everywhere
Jan 2015 – Jan 2018 | Luxembourg
Backend development (1y)
- Development of a GraphQL API gateway with NodeJS
- Development of a distributed CCTV system: migration from C++ application to Golang micro-services (+ unit tests)

Frontend development (2y)
- Migration of an existing AngularJS codebase to ReactJS (FlowType, Redux, Redux-Sagas, tests)
- Migration of a medium-sized AngularJS codebase to newer toolchain (Webpack, ES6 imports)
- Development of a web-based 3D building viewer with real-time rendering of heat maps
- Development of a CCTV web-application in AngularJS (+unit tests)

### Web Development Internship @ Etix Everywhere
Jan 2014 – Jan 2015 | Luxembourg
- Development of a web-based building editor
- Development of a web-based Technical Diagram editor and viewer
- Technologies: AngularJS, PixiJS, PHP

### Web development internship @ Comptoir Nautique
Jan 2013 – Jan 2013
- Development of new features for an e-commerce website (PHP, Zend Framework)
- Integration of Prestashop and development of custom plugins (PHP)

### Web development internship @ Aquafadas
Jan 2013 – Jan 2013
- Rewriting of jQuery components using AngularJS
- Improvement of the publishing tool web application (AngularJS)

### Web & mobile development internship @ Neweb Design
Jan 2011 – Jan 2011
- Development of an iPad app to manage inventory (Objective-C)
- Development of an e-commerce website  (PHP, Zend Framework)


## Education
### Master's degree in Software Engineering
EPITECH - European Institute of Technology
Jan 2010 – Jan 2015

### Computer Science
UC San Diego
Jan 2014 – Jan 2014


## Contact & Social
- LinkedIn: https://linkedin.com/in/gaelollivierdev

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Source: https://flows.cv/gael
JSON Resume: https://flows.cv/gael/resume.json
Last updated: 2026-03-22