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CTO, Senior Full Stack Dev | RoR and Js/Typescript Expert | Remote

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Senior software engineer with over 10 years of experience as a remote freelancer. My educational background includes an MSc 2:1 in computer science and applied mathematics engineering from ENSEEIHT (Toulouse, France) in 2009. I then worked for 2 years as a frontend developer at a startup in London and transitioned to backend work in 2013. Specializing in web application development, I have undertaken projects for companies such as Carrefour, L'Oréal, Cocolis, Epicery, and Alerti. My work has encompassed backend development, data engineering, code and database performance improvement, e-commerce platform customization and logistics, payment system integration, API creation, crawlers, technical documentation, and testing. Passionate about data manipulation and rendering them to users and stakeholders in a more meaningful way, I am currently expanding my skills in AI/ML and neural networks through CNRS fidle formation to explore how I could apply and offer these services to my clients. Recent milestones and accomplishments include: Migrating the payment system from Adyen to Stripe for Epicery Migrating the frontend from Vue to Hotwire for Epicery Developing a geolocalized matching algorithm between carriers and packages for Cocolis Fields of expertise: E-commerce solutions with Solidus/Spree open-source framework Data processing and visualization with Business Intelligence tools for reporting Integration of payment system providers Integration of third-party APIs Database design and performance optimization Frontend performance optimization Crawling and scraping Technical audits Testing, documentation, CI/CD tools Experience with the following tools: Languages: Ruby, Typescript, JavaScript, Node.js, Ruby on Rails Platforms: AWS, Google Cloud Platform, Render, Heroku Frontend: React, Vue.js, Hotwire, Angular, HTML/CSS, Alpine.js, HTMX, Astro Payment providers: Stripe, Mangopay, Adyen, PayPal Data viz: Amazon QuickSight, Superset, Tableau Backend tools: Solidus open-source e-commerce solution, New Relic, Elasticsearch, PostgreSQL, Amazon S3, etc. CI/CD Tools: GitHub CI, CircleCI Fluent in French, English, Spanish.

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15 Years of Software. FullStack, Strong Leadership & Architectural Skills

Hello, I've been writing code since 2005 when I was in high school. Statistics class was great, but I figured I could save myself a lot of time if I programmed the formulas into my calculator. Fast forward to today and I've gained many achievements under my belt. Designed a form builder allowing for on-the-fly form and data adjustments to go live in under a minute (instead of requiring custom code). Built and scaled a volunteer management system. Integrated a customer engagement library into WeddingWire's vendor systems to drive additional engagement. Designed and built an analytics product and API from scratch for Castle, the effects of which brought the company to positive net cash flow. Technical lead for Upstart on several forecasting and simulation tools, along with designing the next generation reporting solutions. I enjoy designing systems and greenfield projects. I've built up several skills that make me uniquely positioned to excel at these types of projects. Designing systems for 15 years. Deeply understanding product requirements in unique ways. Optimizing for efficiency and productivity. Seeing and preventing common pitfalls before they ever happen. Breaking down complicated problems into KISS solutions or documents. Project delivery while optimizing for performance and maintenance. Lastly, I have several things I am passionate about. I enjoy both finance and the outdoor industries. I believe in doing things correctly as practice doesn't make perfect, perfect practice makes perfect. This mental model allows me to deliver quickly with minimal defects compared to other engineers. Thanks for your time, and I hope to hear from you soon!

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Principal Engineer building scalable Ruby on Rails web applications since 2006

Senior Software Engineer – Technical Leader – Principal Engineer As a Senior Software Engineer with 16+ years of experience in Ruby on Rails web development and scaling, I bring a wealth of technical expertise to the table. My hands-on and collaborative leadership style has proven effective in managing projects and teams for more than 12 years. I have a strong track record in fast-paced startups, working closely with the CTO and across multiple R&D teams. Self-driven and responsible, I excel at taking ownership of the technical vision and roadmap. I am experienced in working autonomously, with full accountability for complex projects and applications. My focus is on building reliable, future-proof systems, and I have experience maintaining complex applications in regulated environments with high requirements for data security and reliability. I bring a passion for innovation and problem-solving to early startups, helping them grow by introducing practical solutions and structure. I am able to adapt to change and make informed technology investments that align with company goals. I follow agile methodologies and value collaboration. I view planning and whiteboarding sessions as opportunities to share knowledge and build trust with the team through honest retrospectives in a safe environment. In addition to my technical skills, I have a passion for mentorship and enjoy coaching and training junior developers. I am active in the Ruby community, a maintainer of open source projects, and a top contributor on Stack Overflow with over 2,000 answered Ruby and Rails questions.

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Senior Rails Engineer

How I can help you I am a Rails and PostgreSQL expert. That means that I am very familiar doing things the rails way. There are things that you can only learn from being in a career for so fifteen years. I call it hidden knowledge. At some point you develop a sixth sense for when and how deep to test, which refactors are necessary, a set of practices for handling ActiveRecord associations. Passions I believe that an expert developer is a unique asset to a company as they can drastically change its course. I like working with startups, and I have 15 years of tips, tricks, techniques, strategies from a technical perspective as well as an business/operational perspective. Developer origin story I've always had a love for this craft. I started building robots, then teaching middle and high schoolers how to build and program robots, while managing my own self hosted networks and distro-hopping linux flavors Unique skills that make me awesome I've written custom PostgreSQL extensions You'll notice with me that I am very quick on the keyboard, and between the well placed lame jokes, combined surgically precise problem solving, I have consistently told me that I am a pleasure to work with. Core Skills ⌨️ Tech skills: - Ruby / Ruby on Rails / Rspec - Javascript / Stimulus.js / Turbo / React / AlpineJS - PostgreSQL / Redis / Sidekiq / Goodjob - Heroku / Github / AWS - View components / Tailwind / Bootstrap Startups I built and sold directmailer.io, a direct mailer marketing platform that provides modern marketing conveniences to a legacy channel. Adheres to compliance within certain verticals, and provides deep integration like you're used to in SEO. I was hired to build the core infrastructure for floridahomesteadcheck.com, a property tax analysis tool that guarantees the lowest property taxes for Florida residents. You! You have an idea worth building

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