Hire c-level Ruby on Rails developers

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, and Spanish.

History After finding a hole in the company website after 2 months of joining as a System Administrator, I had the possibility to change from my role into my passion: software development. That's 17 years ago. From that moment onward, I learnt more languages (C, PHP, and amongst others my biggest love Ruby). Working with databases (most notable: MySQL / MariaDB, PostgreSQL), containerization, ops (using Terraform on AWS, GCP mostly). 7 years ago I discovered I am best suited to help my colleagues grow, and turned into a Rails/Ruby/database/Javascript/HTML teacher at a bootcamp, became a (part time) engineering manager. I've been implementing in Ruby/Rails for 50% of my time for the last 2 years, the rest leading teams and advising C suite execs. My main addition ...to any team is improving morale, by coaching and helping to build quality software, focusing on metrics for both errors and processing time, helping engineers of any experience level grow, and - as an individual contributor, but also as a leader - to only use complex solutions if the problem domain warrants it. Most recently I've switched towards building my own company that aims to reduce energy consumption and CO2 footprint for households. Tiny (IOT) devices, software in C, C++, Rust, and clearly building the required backends in Rails or Rust. Well connected: Apart from that, I am one of the organizers of Ruby NL, for which I've been hosting EuRuKo (2019), NoRuKu (2020), and monthly community events of Amsterdam Ruby organisation amsrb.org. If you want a platform where your engineers can present how you solve problems: Contact me!

Senior developer, interim and fractional CTO, generalist. Front-end, mobile and back-end work, from tiny MVPs to efficient, scalable services. Focus on frontend work in React and building features that solve real pains for real people. Entrepreneurial leaning, and experience in building first-version products and prototypes. Open source contributions across all kinds of projects, including Rails and Elixir. Excited about fanning the flame of real inspired work, high energy teams and making a difference.

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.

I have developed, deployed and supported numerous Ruby and Ruby on Rails applications for a variety of businesses including: * Nationwide rental real estate platforms * Social media advertising management solutions * Supply chain finance fintech * Fantasy football real time gaming I have extensive experience in both greenfield and continuing development and can help you build and launch a complex application from scratch or support, extend and modernize an existing mission critical application. Get in touch so we can discuss how I can help you to successfully launch your product or expand the capabilities of your existing team.

My journey in the world of software development has been marked by continuous growth and a passion for solving complex challenges. I've evolved from a Lecturer in web development to a Tech Lead Software Engineer, gaining expertise in various areas along the way. A significant milestone in my career was my role as a Senior Backend Developer / DevOps at Webedia GmbH. There, I not only mastered Ruby on Rails but also improved and configured recommendation systems, elevating user experiences to new heights. In another role as a DevOps / Platform Engineer at anynines, I excelled in automated PaaS management and introduced microservices architecture using Ruby and Golang. My knack for system automation and PaaS application support contributed significantly to the organization's efficiency. Throughout my journey, I've embraced cloud infrastructure, DevOps practices, and leadership roles. My unique skills lie in bridging the gap between development, infrastructure, and system automation, enabling me to tackle challenges that others may find daunting. I'm not just a developer; I'm an innovator who thrives on continuous learning and finding creative solutions in the ever-evolving landscape of technology. With 15+ years of industry experience, I have a proven track record in leading large teams, designing innovative systems, and making significant contributions to the industry. I am well-equipped to set and direct departments and contribute substantially to any challenging projects.

Highly experienced Senior Full Stack Developer with over 10 years of expertise in designing and building scalable web applications, mobile apps, and automation systems. Adept in Blockchain and Web3 technologies, AI/ML models, and Web Game Development and ERP/CRM solutions. Strong expertise in Zoho CRM customization and integrations, Extensive hands-on experience in DevOps, PLC automation, and eCommerce platforms. Skilled in Android mobile development with proficiency in Java and Kotlin. Proficient in a wide range of programming languages and frameworks, including expertise in marketing platforms and cloud-based solutions, with a strong focus on high-performance, secure applications.

I'm addicted to building good products. Part=time / short-term high-intensity projects only. Pitch me your idea and I'll build it over a weekend. I'm currently founding FrameSports, which is automating data extraction in sports using AI. Before that, I was #1 hire at DitchCarbon, a carbon footprint lookup API for procurement and sustainability teams.

Hi, my name is Daniel and I am an entrepreneur with a passion for all things web and tech. I have over 12 years of experience in the industry, working as a CTO, head of product, and full-stack developer. I have been a technical co-founded and scaled Wayleadr to a $25M+ tech company. Throughout my career, I have been involved in multiple startups and have gained a wealth of experience in building SaaS, B2B, B2C products and services. As a skilled full-stack developer, I am proficient in a range of front-end and backend technologies and have a strong understanding of the latest web technologies and trends. I am also an experienced UI and UX designer, with a keen eye for detail and a passion for creating intuitive and engaging user experiences. Whether I am leading a team or working on a solo project, I am always looking for new challenges and opportunities to grow and learn. I am driven by the desire to create innovative and impactful products that make a difference in people’s lives. Checkout my LinkedIn & my website for more. I look forward to talking with you.

Hi there, I discovered Rails before it was mainstream and have been in love with it ever since. I've now been doing Rails development for over 20 years and worked in many industries including banking, health care, parks and recreation, travel and real estate among others.