Arnaud Mesureur
Online Payments Developer
Location
Lisbon, Portugal
Toptal Member Since
October 4, 2019
Arnaud has a proven track record of managing engineering teams and building scalable web applications in fast-paced environments. His experience ranges from building high-end web performance analytics platforms to being the head of engineering of a successful online marketplace. He has recently led a two-year project to design and build a payment platform handling millions in transactions for one of the largest micro-mobility operators globally.
Arnaud is available for hire
Hire ArnaudPortfolio
Spin
Ruby on Rails (RoR), Adyen Payments, Stripe Payments, Leadership...
Quinn
PostgreSQL, React, Ruby on Rails (RoR), Ruby, Web Architecture...
Flippa
Amazon Web Services (AWS), Docker, Heroku, React, JavaScript, RabbitMQ, Redis...
Experience
MySQL - 8 yearsWeb Architecture - 7 yearsAgile Software Development - 7 yearsRuby on Rails (RoR) - 7 yearsOnline Payments - 4 yearsLeadership - 2 yearsSolidity - 1 yearBlockchain - 1 yearLocation
Availability
Part-time
Preferred Environment
Git, Vim Text Editor, Visual Studio Code (VS Code), MacOS
The most amazing...
...project I've led is a payment platform handling millions in transactions for one of the largest micro-mobility operators globally.
Work Experience
2020 - PRESENT
Staff Software Engineer
Spin
- Led the payment service team and supervised the design and implementation of a new payment service capable of supporting multiple payment providers side by side and handling payments across multiple merchants.
- Migrated the main application from Stripe to Adyen payments.
- Designed and implemented payments through the PayPal platform.
Technologies: Ruby on Rails (RoR), Adyen Payments, Stripe Payments, Leadership, Agile Software Development, Web Architecture, API Architecture, Amazon Web Services (AWS), Object-oriented Programming (OOP), Sidekiq, Architecture, Online Payments, Databases, RSpec, Web Development, Solution Architecture
2019 - 2020
Lead Software Engineer
Quinn
- Led the development of a payment, tipping, and vendor management system for an audio sharing platform using Ruby on Rails (RoR) and React.
- Migrated and scaled the entire infrastructure from DigitalOcean to Heroku.
- Implemented coding best practices and guidelines into the front-end React application and the Ruby on Rails codebase.
- Refactored the data modeling at the application and database level.
Technologies: PostgreSQL, React, Ruby on Rails (RoR), Ruby, Web Architecture, API Architecture, Object-oriented Programming (OOP), Architecture, Google Analytics, Online Payments, Databases, RSpec, Web Development
2015 - 2019
Head of Engineering
Flippa
- Shaped the business by participating in hiring, C-level meetings, business intelligence analytics, and reporting and leading the engineering and product team using Lean and Agile methodologies.
- Developed and maintained the core Ruby on Rails (RoR) marketplace, React front-end, and the AWS infrastructure.
- Implemented an event system with RabbitMQ to support interfacing the core Ruby on Rails application efficiently with multiple external services (SOA).
- Built and maintained advanced search features using Elasticsearch.
- Constructed a high-traffic name server for domain parking pages using Elixir.
- Implemented the funnel and conversion tracking with Google Analytics and Google Tag Manager.
Technologies: Amazon Web Services (AWS), Docker, Heroku, React, JavaScript, RabbitMQ, Redis, PostgreSQL, MySQL, Ruby on Rails (RoR), Ruby, Web Architecture, API Architecture, Amazon S3 (AWS S3), Business Strategy, Leadership, Object-oriented Programming (OOP), Sidekiq, Google Tag Manager, Stripe Payments, Architecture, Google Analytics, Online Payments, Databases, RSpec, Web Development, Solution Architecture
2015 - 2015
Senior Software Engineer
Washos
- Delivered a back-office interface for contractors of one of the first on-demand car-wash companies in the US.
- Implemented significant application and database optimization to improve the overall performance of the platform.
- Trained the engineering team on tooling, processes and best practices around web and database performance and performance regression testing.
Technologies: Ruby on Rails (RoR), Ruby, Web Architecture, Object-oriented Programming (OOP), Databases, RSpec, Web Development
2015 - 2015
Senior Software Engineer
Mobile Network
- Designed, implemented, and delivered a business-critical platform for Apple device enrollment for a mobile device management (MDM) and enterprise mobility management (EMM) company.
- Implemented a search and bulk action interface that allowed tasks that would typically take a few days to be executed in a few minutes.
- Migrated the on-premise infrastructure to the cloud with the addition of a full test suite and a CI/CD pipeline, allowing for a drastically improved development experience and ease of maintainability.
Technologies: Apple, Heroku, Ruby on Rails (RoR), Ruby, Web Architecture, Object-oriented Programming (OOP), Databases, RSpec, Web Development
2013 - 2014
Software Engineer
Quanta
- Created the first proof of concept (POC) and minimum viable product (MVP) of the web performance monitoring platform for eCommerce websites.
- Developed and maintained the core SaaS solution with Ruby on Rails (RoR), MySQL, Redis, and AngularJS.
- Constructed a Google Analytics poller service to capture business intelligence (BI) data at regular intervals.
- Built a Zabbix poller service to capture host performance data at regular intervals.
- Developed a Magento poller service to capture application performance data at regular intervals.
Technologies: Sidekiq, Redis, MySQL, AngularJS, Ruby on Rails (RoR), Ruby, Web Architecture, API Architecture, Object-oriented Programming (OOP), Architecture, Databases, RSpec, Web Development
Experience
Payment Service for Micro-mobility Operator
A payment service for micro-mobility operators handling millions in transactions. Designed and built from the ground up. The service handles multiple payment providers, including Adyen and Stripe, side by side.
Flippa
https://www.flippa.comFlippa is the number-one marketplace to buy and sell online businesses. It's a one-of-a-kind business with technical and product challenges, mainly around trust, marketplace integrity, and verification. Millions of users registered, and hundreds of thousands of unique visitors come to the site each month.
Quanta
https://www.quanta.io/Quanta is a web performance analytics and monitoring SaaS platform for eCommerce websites. The application collects and processes gigantic amounts of data—billions of SQL rows generated and processed weekly, rendered within an intuitive, beautiful, and modern JavaScript standalone application. This project pushed the limits in terms of data storage and processing. It's not your average CRUD app!
Washos | On-demand Mobile Car Wash
https://www.washos.com/In the words of the founder and CTO, Benjamin Guez:
“Arnaud is a fast learner. He jumped in a massive Rails codebase at @washos and has immediately been involved in critical customer-facing features. His capacity to handle production apps with professionalism and tons of best practices impressed us. I would hire Arnaud without any question, from back end to front end with even knowledge in iOS, he's the full-stack engineer we all want in our teams."
“Arnaud is a fast learner. He jumped in a massive Rails codebase at @washos and has immediately been involved in critical customer-facing features. His capacity to handle production apps with professionalism and tons of best practices impressed us. I would hire Arnaud without any question, from back end to front end with even knowledge in iOS, he's the full-stack engineer we all want in our teams."
Skills
Languages
Ruby, JavaScript, Solidity, C, Go
Frameworks
Ruby on Rails (RoR), AngularJS
Libraries/APIs
Sidekiq, React, Google Analytics API, Stripe
Tools
Git, Adyen Payments, RSpec, RabbitMQ, Google Analytics, Vim Text Editor
Paradigms
Agile Software Development, Object-oriented Programming (OOP), Web Architecture, API Architecture
Platforms
Heroku, Mixpanel, Amazon EC2, MacOS, Docker, Apple, Amazon Web Services (AWS), Algolia, Blockchain, Visual Studio Code (VS Code)
Storage
MySQL, PostgreSQL, Databases, Redis, Elasticsearch, Amazon S3 (AWS S3)
Other
Business Strategy, Leadership, Computer Science, Stripe Payments, Online Payments, Web Development, Solution Architecture, Google Tag Manager, Architecture, Jumio, English, PayPal
Education
2009 - 2014
Master's Degree in Computer Science
EPITECH (Ecole pour l'Informatique et les nouvelles Technologies) - Paris, France
2012 - 2013
Diploma in Intensive English
California State University, Long Beach - Long Beach, CA, USA