Hire mid-level freelance Ruby on Rails developers in France

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.

👉 I'm a Rails full stack developer with more than 4 years of experience. I have already worked on an REST API, ERP and SaaS. The most complex project I worked on had 124 Ruby models. I have worked as freelancer or full-time employee with startups and bigger companies. ✔️ Communication is the basis of a healthy collaboration ✔️ I started to write technical articles on Medium ✔️ I followed the training of Le Wagon Bootcamp in Marseille (France) My skills: ✅ Ruby / Ruby on Rails / Rspec / Minitest 💎 ✅ Javascript / Hotwire (Turbo & Stimulus) / Jquery ✅ PostgreSQL / Redis / Sidekiq / Scheduler / ActionCable / Omniauth ✅ Heroku / Github / Namecheap / CleverCloud ✅ Responsive Design / PWA / API / CI-CD / WCAG / Webhook ✅ Slim / HAML/ View components / Actors / Presenters / Decorators ✅ SEO / RGPD / SSO / OpenAI / Prompt Engineering / JWT ✅ Postmark / Stripe / Swagger / Carbon.io / Rubocop ✅ Devise / Pundit / Cloudinary / Mapbox / Geocoder / Sentry / Cryptr

Hello world, I’m a Ruby-on-Rails developer based in France, with 15 years of experience. Back-end developer I graduated with a master in computer sciences, and held various positions as developer, tester, quality leader, project leader, mentor, always keeping hands on code. Front-end developer Then I spent some years in the Front-end space, when things started to be well-structured thanks to Angular, then Ember and React. Now Full-stack developer For more than 5 years now, I've been coding all layers, preferably with Rails, but I'm open to other stacks. Some things I look for in the things I work on are: • Bring maximum value to the end user • Maximise empathy and mutual understanding • Robustness and stability • Have great design and user experience • Minimize efforts by automating everything I can I’m passionate about quality. It includes the quality of the relationships between team members. To increase my knowledge, I used to go to conferences, I now follow them on YouTube. I like to open and read code from others, picking clever tricks wherever possible. I'm writing 2 tech blogs : one about me, another to help junior Ruby-on-Rails developers to increase their skills. Apart from work, I like to be outside, no matter if it's gardening or running. Write me at bdavidxyz at gmail dot com Warm regards! D

Hi, I'm a french programmer in the process of relocating to the US (San Francisco) through an E2 visa (Investor visa). I will open my own agency and would love to have you as my client. I can work from France to start and from the US in winter 2023. I have deep expertise in Ruby on Rails and Ruby and know my way around React and Stimulus (and JavaScript in general). I worked in the US and in France for Bespoke Post, Trusted, Doctolib and thoughtbot. My daily rate is $1000/day. Thanks, Dorian

Hey! I'm a product and software engineer with over 10 years of professional experience and a degree in Computer Science from Epitech. I have extensive experience in full stack engineering, from infrastructure (e.g. Terraform and Docker) to the backend (e.g. Ruby on Rails and Node with Express) and the frontend (e.g. React/Redux). I’ve had the chance of building products in a wide variety of industries, including: marketing automation for enterprise companies, human ressources for SMBs, and logistics for E-commerce DTC brands.

I started learning Ruby 10 years ago when a specific problem needed to be solved at a retail company. Since then, I have continuously leveraged the potential of this exceptional programming language. Currently, I am training in AI-assisted automation to optimize the resolution of time-consuming problems. I am passionate about learning new skills. I have always had a keen interest in acquiring new knowledge and consistently find ways to apply what I learn to solve problems or improve processes. I take a great interest in deeply understanding the products I work with, which allows me to find the best solutions to satisfy customer needs. Over the past few years, I have used various technologies such as Ruby, Hotwire, Vue.js, Flutter, as well as tools in artificial intelligence, No-Code, and automation.

Hi, I'd be delighted to build your MVP or add new features to your existing Ruby app. From brainstorming to design to implementation, I can jump in at any point and provide constructive feedback or working code, whatever you need. Having worked in the frontend before going fullstack, I'm particularly at ease with HTML and CSS, and I take great care to build responsive and accessible UIs. Backend-wise, I've worked on several document generators, online shops, built blogs, implemented full-text search, and worked with APIs and webhooks, both inbound and outbound. Let's talk!

My passion for Ruby not only steams from its elegance and productivity bus also from the community that inspires innovations. As a developer, providing efficient solution is not sufficient, I want it to be scalable and maintainable as well. Recently I participated a project that transformed a legacy system into microservice-based system that improves that system performace and makes the system much more scalable. That project proves how I understand and know how to build a robust architecture. Continuously learning is core value of my professional path, sometimes I choose a new thing to learn not only for my incoming career, I just think that's funny for me, for instance I have began to learn a new language called moonbit, very few people know about it. The learning curve was tough but rewarding. I am particulary passionate about creating software that has a positive imnpact on people's lives, that means the project should have meaningful impact. I am a quick learner, and I am not afraid of putting my hand into dirty codes in order to find the solution by using my prolem-solving approach skill. My ideal project involves working with friendly and open-minded people, as for the team environment, what inspires me the most is I can apply my continuous learning approach with collaborative colleagues with them we can grow together.

🌱 1.5 years experience as a developer (Permanent, Entrepreneurship, Freelance) Depozen: Permanent contract, I was focused on notifications and API integrations. Youclub (activities/clubs search engine): Initiated by my frustration with inefficient Google searches for local clubs, I envisioned and developed a dedicated app using a Ruby GraphQL API and React Native client, with web views integrated into the Rails codebase. Challenges : finding an API to query for to seed my app. Ensure data integrity between models and graphQL types. Challenges were about improving performance of query . Still improves to make. Despite its potential, it was a commercial failure, leading me to flush the database and remove it from Heroku. I later redeployed it in its MVP state for demonstration purposes. Co-founded Musicast: A platform for music competition organizers. After my co-founder departed due to loss of faith in the project, I continued alone, securing early clients before coding the entire SaaS from scratch. This included features like user roles, workflows, AI capabilities, and a dynamic planning generator which I believe is my most complex work due to its customizable settings. I chose not to commercialize it as handling customer support, marketing, sales, product design, and coding alone was overwhelming, particularly in a niche market. This led me to resume my job search. Recently: Diving deeper into Ruby methods to better understand how it works under the hood. Last very interesting moment was re-coding the belongs_to method in Rails with TDD. Current Learning: Diving into Swift during my free time to expand my mobile development skills. (Stanford course) Interests: I have a thing for projects with a mobile component. I am keen on tackling larger-scale projects and deeper Rails functionalities, areas I haven’t explored in my personal projects. Improving performances is an area that I like too. I attend every Paris.rb and React Native Paris events. Career Aspirations: Looking for a collaborative team with structured processes, code reviews, and a senior mentor to further my growth.

I am a software developer with 5 years of expertise in Ruby on Rails 💎. I worked on products from fintech to tools for your APIs. I can help you keep up with Rails 🛤 , implement Hotwire 🧵 and view components, and improve team work with better Code Reviews or Shape Up (Basecamp) methodology. I am a partisan of writing clean and maintainable code. I work in continuous development and delivery as it is to me the best way to ensure that the product is actually used by clients and gives the team more flexibility and happiness. Beside my job, I am very active in developers communities : 💌 I publish a Newsletter on latest tech and Rails news (https://womenonrailsinternational.substack.com/) 🎤 I give Workshops and write tech articles (@42, Peer-to-Peer (P2P) Festival, @le Wagon, les 24 jours du web) 🫶 I work on open source projects, manage slack communities, and organize Tech Meetups