Hire freelance Ruby on Rails developers in France

I started learning Ruby on Rails because I wanted to bring my ideas to life by creating simple and effective web applications. What I love most is building projects that make sense and can truly be useful to people. I first created my personal website with Jekyll to share what I do and what inspires me. Then, I developed Quotety, a project that is close to my heart, and now I’m working on creating a game, a new challenge that pushes me to learn even more. At the same time, I’m also the founder of the podcast Art au Féminin, where I give a voice to women passionate about art. This project is important to me because it combines my interest in creativity and my desire to highlight female voices. Every day, I’m motivated by the desire to learn, grow, and contribute to projects that reflect who I am. I’m excited to join a team where I can continue to develop while making a meaningful impact.

Business-minded builder turning real-world problems into elegant, scalable solutions. Product-Centric Approach Former e-commerce and operations strategist (3+ years), now a Le Wagon-trained Ruby on Rails developer. I bridge tech and business by: Building tools that simplify complex workflows (e.g. Clairbnb, a booking app that reduced admin workload by 30%). Crafting UI-sensitive, maintainable code (e.g. Vibevault, an e-commerce MVP for a music gear startup). Leveraging cross-functional experience to ship fast, communicate clearly, and align tech with stakeholder needs. Recent Projects Clairbnb – Airbnb-style booking platform with dynamic search and Stripe integration. Vibevault – E-commerce MVP (Rails + Hotwire) with product filtering and admin dashboard. Twitter Clone – Scalable microblogging app with real-time updates (Stimulus + ActionCable). Why Work With Me? Business empathy: I speak both “developer” and “stakeholder.” Pragmatic collaborator: Focused on delivering value, not just code. Always learning: Active in open source, constantly refining my craft. Open to: Part-time / Full-time contracts, Full-time employment (Junior / Mid roles) Based in: Paris, France (GMT+1) | Remote-friendly

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.

Working as a fullstack Ruby On Rails and Flutter software engineer for many years. Experienced in a highload web apps, APIs and mobile apps development from scratch. Interested in Web 3 projects and everything new. Current projects: - https://copybet.com — React/Remix = React Native web and mobile apps - https://warp3.tech (RoR, sinatra, docker, mysql) — a server to scrap and prepare unique content summaries with translation automatically with 4 different neural networks (ONNX binary inference of NLP models). - https://brevy.app (flutter android, ios apps) — mobile client made with flutter to demonstrate warp3.tech abilities. - https://altyn.io (RoR, docker, postgres) — web3 blockchain based accounting web application with crypto support and professional double record Prefered: - mobile apps development with Flutter or React Native - web apps development with Ruby On Rails or React/Remix Payment in crypto is possible. Remote only.

I am a software engineer, programming mentor, and tech intrapreneur. I specialize in building elegant and functional web solutions, primarily using Ruby on Rails. With over ten years of experience, I've developed a diverse portfolio of web applications and services using Ruby, JavaScript, Node.js, and more. My expertise extends to integrating web services, scaling applications, and managing infrastructure and security across numerous projects. Beyond my professional work, I mentor students and professionals looking to develop their Ruby and JavaScript skills. Sharing knowledge and helping others achieve their goals has become a rewarding extension of my career. I approach technology not as an end goal but as a means to solve meaningful problems. This perspective is reinforced by my practice of Parkour, whose philosophy of overcoming obstacles and adapting to challenges influences how I approach both programming and life.

I am a skilled Senior Software Engineer with a passion for software development and a strong track record in designing and developing web and mobile applications with an entrepreneurial mindset. With expertise in multiple languages and technologies, including Rails, Swift, React Native, Go, and Java, I have successfully delivered complex projects for renowned companies and have a proven ability to optimize performance and enhance user experiences. Je parle français couramment.

Over the past six years, I have honed my skills in Ruby on Rails, utilizing technologies like Hotwire or React for the frontend. The versatility and elegance of this framework have captivated me, making it my go-to choice for building robust web applications. In addition to my expertise in Ruby on Rails, I have also immersed myself in the world of Python Data Science libraries, including Pandas, Scikit-learn, and Tensorflow. This journey has sparked a deep interest in Natural Language Processing (NLP), and I am eager to explore innovative applications in this field. Beyond my development work, I am a teacher at Ada Tech School, an inclusive institution dedicated to fostering diversity within the tech industry, and Nao School, a bootcamp in Data Science. I am excited to learn more about your projects and how I can contribute my skills and enthusiasm to their success.

Software engineer & DevOps with 15+ years of experience in applications development and infrastructures management. I offer a wide range of services from Ruby on Rails projects consulting and development to the deployment of cloud infrastructure on Amazon Web Services.

Software engineer with over 3 years of professional experience. My educational background includes an MSc 2:1 in computer science and engineering from "École Centrale de Lyon" (Lyon, France) in 2021. I then worked for 3 years as a backend developer at a startup in Paris. My work has encompassed backend development, data engineering, code and database performance improvement, e-commerce platform customization and logistics, price modelling, API creation, batch processing, technical documentation, and testing. Some examples of previous projects : Design of the data model of purchase and sale prices at Omie. Developing and adapting the interface of the e-commerce platform Spree/Solidus. Automating the data collection flow for the development of new epicery products. Development of an interface for planning work slots for clinic employees. Development of a ticket management interface for customer service at MailPlus. Experience with the following tools: Languages: Ruby, JavaScript, Python, Ruby on Rails Platforms: Heroku Frontend: React, Vue.js, Angular, HTML/CSS Payment providers: Stripe Data viz: D3.js Backend tools: Solidus open-source e-commerce solutions, PostgreSQL, Amazon S3, etc. CI/CD Tools: GitHub CI, CircleCI Fluent in French, English. Notions of German, Spanish and Portuguese.

Hi there 👋 I'm Oussama, a passionate Ruby on Rails developer with over 13 years of hands-on experience in crafting robust web applications. My journey began with a fascination for elegant code and scalable architectures, and it has since evolved into a relentless pursuit of excellence in software engineering. 💼 Professional Background I have been deeply immersed in the Rails ecosystem since its earlier iterations, witnessing its growth and evolution firsthand. Throughout my career, I've contributed to various projects, ranging from startups to enterprise-level applications, consistently striving to leverage the best practices and emerging technologies to deliver high-quality, efficient solutions. 🚀 Expertise My expertise spans across: Ruby on Rails Development: Proficient in building full-stack applications, RESTful APIs, and microservices using Rails, ensuring scalability and maintainability. Database Design and Optimization: Experienced in designing database schemas and optimizing queries to enhance performance. Test-Driven Development (TDD): Strong advocate of TDD principles to ensure code reliability and maintainability, utilizing RSpec and other testing frameworks extensively. Frontend Technologies: Skilled in frontend development with JavaScript, React, or Ember.js, ensuring seamless integration with Rails backend. 🌟 What Drives Me I'm passionate about leveraging technology to solve complex problems and create impactful solutions. I thrive in collaborative environments, where my experience and expertise can contribute to innovative projects and foster a culture of continuous improvement.