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

High response rate

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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CEO / CTO with 7yrs xp of fullstack Rails dev. I raised +1.6m€ with the company I built from scratch. IoT and hybrid services expert.

Since beginning my journey in web development with Ruby on Rails in 2017, I've been driven by the desire to innovate and lead in the tech space. I founded a music-tech startup, coding 65% of our product myself and leading our talented team of seven to secure €1.6m in funding. Our company, now profitable and fully automated, provides 24/7 accessible studios for music producers and content creators. Our journey in the IoT and music-tech sectors has honed my skills in holistic product design, development, and management. I ensure our products meet end-user needs while seamlessly integrating various professional disciplines, achieving both high performance and strict adherence to timelines. 🛠️ Technical proficiencies: - Languages and frameworks: Ruby 3, Rails 7, TailwindCSS, ViewComponent, Turbo, Stimulus JS. - Testing and opperations: Minitest, Yarn, Sidekiq, Heroku, Redis. - IoT and automation: Raspberry Pi, Home Assistant, smart devices, and API integrations. - Payment and marketing systems: Stripe (Payments, Billing, Identity, Connect), marketing automations with n8n. 😌 Additional skills: - Expertise in marketing, UX design, branding, and both headless and no-code CMS platforms. - Proficient in data science, focusing on data collection, manipulation, and enrichment. 🏢 Industries I add value to: - Music and entertainment, IoT, real estate, travel, cooperative sciences, and hybrid business models. - Extensive experience in industries related to scuba diving and smart buildings. 👀 Looking forward: I am eager to explore new projects and collaborate with teams that aspire to reach and exceed their goals. If you're seeking a seasoned developer with a proven track record and broad industry expertise, let's connect and discuss how we can work together to achieve something exceptional. 😌

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Engineering Leader - Experienced in Scaling from 0 - acquistition

I am an accomplished Head of Engineering with over 9 years of experience driving innovation and leading high-performing engineering teams. Throughout my career, I have consistently built and scaled engineering organizations, delivered complex software solutions, and driven significant business impact.   My "developer origin story" is grounded in hands-on software development. I honed my skills in Ruby on Rails early on, and I'm particularly proud of my commitment to quality, like when I took untested production apps to 95% code coverage. This foundation as a developer deeply informs my leadership approach, giving me a strong understanding of the challenges and opportunities my teams face. A recent highlight includes my time as CTO at Sonatafy, where I developed AI screening to improve hiring and recruiting efficiency.   Building and scaling teams is a passion of mine, demonstrated by my experiences at Spring Health and Freshly, where I rapidly expanded engineering teams while maintaining a focus on delivery and quality. I excel at connecting technology with business strategy, and I have a proven track record of driving key business metrics and reducing costs through innovative solutions. For example, I owned the engineering of an internal EHR at Spring Health, which decreased expenditures in the tens of millions annually.   My unique skills lie in the blend of my technical expertise, strategic thinking, and leadership capabilities. I'm adept at system architecture, project management, and IT strategy, with a focus on fostering collaboration and enhancing operational efficiency. I believe in investing in people, and I am committed to mentoring, training, and guiding teams, even through complex transitions like the billion-dollar acquisition I navigated at Freshly.

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Love writting beautiful clean code

As a developer, I have a unique set of skills and experiences that set me apart from the rest. One of my greatest strengths is my strong work ethic, which I bring to every project I work on. I am enthusiastic, ambitious, and always looking to improve and learn with a studious spirit. I take great pride in my work and am committed to delivering high-quality solutions that meet or exceed client expectations. Another aspect that makes me unique is my multilingual ability. With fluency in French, English, Portuguese, and Spanish, I can effectively communicate with clients from diverse cultural backgrounds, making me an asset to any team working on global projects. My experience in customer service and sales has also honed my interpersonal skills, allowing me to effectively collaborate with clients and team members to achieve project goals. In terms of technical skills, I have a wide range of experience in programming frameworks such as Ruby on Rails, Vue.js. I have worked on a variety of projects, from applications for schools and NGOs to games and finance apps. My portfolio includes projects such as a rock-paper-scissors game, an events platform, and a CLI for OpenAI GPT3. I am always eager to take on new challenges and continue to expand my skillset. Finally, my experience as a full-stack developer and project manager/team lead has given me the skills to prioritize tasks, face clients, delegate tasks, and review pull requests effectively. I am confident in my ability to manage projects and teams, ensuring that they are completed on time and within budget. In conclusion, my strong work ethic, multilingual ability, customer service and sales experience on top of my great technical skills make me a unique and valuable asset to any development team. I am confident that I can deliver high-quality solutions to any project I am assigned to, and I look forward to the opportunity to contribute my skills and experience to your team.

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