Hire mid-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.

I’m a passionate Ruby on Rails developer with 4+ years of experience building and maintaining robust back-end systems, including working extensively with legacy applications. Over the years, I’ve worked with various versions of Rails, adapting to evolving best practices and technologies. While my expertise lies in back-end development, I’m also skilled in modern front-end technologies. I actively work with Vue.js, leveraging its reactivity and flexibility to create dynamic user interfaces, and I’ve integrated Hotwire to deliver fast, seamless experiences without over-relying on JavaScript. I’m always striving to improve my craft and learn new tools that make development faster, cleaner, and more enjoyable. I bring dedication, attention to detail, and a collaborative spirit to every project. I’m excited to take on new challenges and prove how I can contribute to building exceptional software.

I'm Veteran Full-Stack Ruby on Rails Developer with ReactJS expertise. Proficient in Hotwire, Turbo, Stimulus, JavaScript, AWS, Github, Heroku, and various other technologies. Skilled in self-management for independent projects and a collaborative team player. I have worked in different domains like healthcare, legal, security, construction, social media and others. I'm passionate about coding, especially in Ruby with the magic of Rails making things smooth sailing. I've built plenty of projects, and now I'm excited about combining Ruby on Rails with AI. I'm skilled with Git, RSpec, and handling databases. I also know my way around frontend tech like ReactJS and AngularJS, as well as integrating APIs. I've led small developer teams back home, using tools like GitHub, GitLab, JIRA, and Linear. I'm fluent in Gujarati, English, and Hindi, making communication a breeze. As a remote developer, I'm here to turn your ideas into reality. Whether it's working solo or coordinating a team, count me in to get the job done. I can provide a wide range of services that are designed to attract attention and cater to the most searched for needs. Here are some examples of the services I offer. -> Web application development -> Font-end UI/UX development -> Back-end REST APIs development -> Application deployments on cloud -> Version upgrades -> Technical lead for teams -> Application maintenance or support -> Technical consultation -> Project management -> Problem solving -> Small project to large (feature, enhancement, bug, issues)

Hi, I'm Mwala and I love building for the web. I have been writing rails programs since 2022 and I have been hooked to this framework ever since. Rails really brings out the creative in me what people online call the developer brain. The framework's full-stack experience is one I have really enjoyed especially when you integrate Hotwire 🔥. I used django before and had a good experience with it won't lie. I have also done so work with Gin with go-lang and React just for the frontend(that what it should be used for). I have done some game development in the past and computer vision work, it was an exciting time. Game dev is something I might go back. Okay, I don't spend all my time on development, I try my best to stay in shape, football (soccer) being my go to sport. I really like watch and playing the sport. I think If I wasn't a developer I would have been playing football professional. I have gotten into the habit of watching the UFC and motorsports, F1 to be specific.

Hi, Haswanth, Fullstack developer with 2.5 YOE, Ruby on Rails and Hotwire, Experience with Multitenant and Finite state machine applications. integrations between two systems, refactored old application for performance

Hi! I'm Liz 👋🏼 I'm about as full-stack 🥞 as they come. I started as a QA and automation engineer and now I'm a senior full-stack engineer focusing on Rails and React. Early on as a QA I worked on projects from writing SQL scripts to check data, to automation engineering, to React Native applications, and even helping implement Kafka instances and a team transition to Kubernetes. Then I moved on to development, mostly focusing on Rails / React stacks. I also am very comfortable working in Python. Now I've been a full stack developer for a few years, always carrying my QA mindset with me. I love exploring the ins and outs of a problem, and figuring out where I can pick it apart and expose weaknesses. I'm really great at building relationships with stakeholders, establishing trust and cooperation so that we can all move forward with a project in a very pragmatic way. Pairing with coworkers is always very enjoyable for me. I like the collaboration, but I really value the mentorship the most. Teaching juniors git has become a mainstay for me, as well as coaching them to maintain a calm mindset while debugging, encouraging them to move through issues in a systematic way. And of course I always fit in robust testing, showing folks how to create test suites and pipeline automation that will improve their workflow. Let's talk about how I can contribute to your team and stack 🙌🏻

Hey there! I'm an experienced software developer with a strong background in Ruby on Rails, Hotwire (including Turbo, Stimulus, and Turbo Native), Jumpstart Pro, APIs, Postgres, Tailwind. I'm really passionate about crafting high-quality, efficient, and user-friendly applications. 💻 Recently, I had the pleasure of working with inkwire.co, where I developed cross-platform applications using Turbo Native. I optimized high-traffic pages, reducing load times by an impressive ~80%. Additionally, I improved database performance through query optimization, task offloading, caching, and refactoring model associations. 📈 I also collaborated with digitalwildcatters.com on a contract basis, where we developed a cross-platform application using Ruby on Rails and Turbo Native (Jumpstart Pro). I implemented intuitive UI/UX designs using Tailwind CSS, ensuring a seamless and visually appealing user experience. 🌈 Prior to these contract roles, I worked with oblsk.com, where I contributed to remarkable projects like plt4m.com. I solved user stories by creating models, writing ORM queries (Sequel), conducting testing (Mini & Capy), and implementing responsive CSS. Another notable project was haymakersforhope.org, where I integrated a Strapi API for a headless CMS and designed a responsive interface using Tailwind. 🏆 In my spare time, I'm dedicated to giving back to the community through organizations like Ruby for Good. I've actively participated in their CASA project, assisting with both small and large issue resolution. Collaborating with like-minded individuals to make a positive impact is truly fulfilling. 🌿 I consider myself on being resilient, resourceful, and emotionally intelligent. I possess strong communication skills and always strive to deliver on time. 🌟 🇺🇸 English - Professional 🇲🇽 Spanish - Native CASA project: https://github.com/rubyforgood/casa/commits/main/?author=dominiclizarraga Personal blog: https://github.com/dominiclizarraga Resume: https://standardresume.co/r/YcQ-LtWoMGJlQFJz4IvH5

I am a dedicated software engineer with a strong background in backend development using Ruby on Rails and a proficiency in Android application development. My passion for software engineering goes beyond the workplace; I consider myself a software enthusiast who thrives on exploring and mastering new technologies. In my career, I have honed my skills through hands-on experience and a commitment to continuous learning. I find that my innate curiosity is a driving force, leading me to approach challenges with an inquisitive mindset and enabling me to quickly acquire new skills as technology evolves. Beyond my technical abilities, I have developed a reputation for effective organization and project management. My natural inclination towards order and structure allows me to excel in planning and executing tasks, ensuring that projects are completed efficiently and on schedule. One of my key strengths lies in my empathetic nature. This quality enables me to be an attentive listener and a valuable team player. I believe that strong collaboration and communication are essential in the software development process, and my ability to connect with team members and understand their perspectives fosters a positive and productive working environment. Outside of the digital realm, I find relaxation and inspiration in a variety of activities. Whether it's immersing myself in a compelling book, strumming melodies on my guitar, or engaging in the world of video games, I am continually seeking new experiences and opportunities to learn and grow. What sets me apart as a software engineer are these unique qualities: 1. Curiosity: My natural curiosity drives me to explore, learn, and adapt to new technologies and challenges. 2. Organizational Skills: I bring a structured and organized approach to my work, ensuring efficient project planning and timely delivery. 3. Empathy: I value effective communication and collaboration, striving to be a great listener and a supportive team player. I am excited to contribute my skills, enthusiasm, and dedication to software engineering projects and teams that share my passion for innovation and excellence.

FullStack Software Engineer II April 2019 – March 2024 Jack Henry and Associates (Monett, MO) • Main Stack: Javascript/Ruby on Rails/React/AWS EC2+RDS+Lambda/Scala/Python/Docker/Kubernetes • Developed backend APIs to integrate our React frontend and Rails middleware with services like Twilio, AWS S3/Lambda, and our in-house Scala microservices. • Improved reporting accuracy and turnaround time by utilizing Rake scripts and MySQL workflows; used Python (Pandas) for data analysis, and reduced the amount of time to run cleanup tasks by 40%. • Boosted system uptime 40% by implementing and maintaining monitoring tools (NewRelic, Datadog, Sentry) and automatic ticket generation with Jira to streamline bug-reporting process. • Reduced deployment time by 25% by creating internal Capistrano scripts, custom Ruby and SQL scripts/queries, and leading automation processes that allowed these tasks to be repeatable. • Bridged informational gaps between Database, Support, and Infrastructure teams, enabling faster resolution of cross-team issues by 65%. • Led migration from EC2 + Puppet to Docker + Kubernetes, increasing scalability by 30%, and simplifying infrastructure management and reducing deployment schedules from weekly rotations to any-time. • Led a collaborative effort with the DBA team to identify and resolve issues with duplicate entries, personally identifiable/sensitive information, and cleanup tasks. • Developed custom SQL scripts and Ruby-based tools to automate deduplication, reducing manual table maintenance time by 80%. • Learned advanced data handling techniques on the fly, demonstrating adaptability and problem-solving under tight deadlines. Front-End Software Engineer March 2014 – April 2019 Geezeo (Glastonbury, CT) • Main Stack: Javascript/CSS/Angular/Webpack • Migrated legacy Angular views to a standalone Webpack package, improving modularity and reducing build times by 30%. • Built and deployed a production-ready Angular application, evolving it from a non-functional proof-of-concept to a fully featured product with wide client adoption that led to a wide adoption by our entire client base of 500+. • Developed frontend APIs and integrated them with in-house backend services, ensuring seamless data interactions. • Used SASS and to implement theming and white-labeling features, enabling customization for diverse client needs. • Managed continuous deployments with Node.js and Webpack, automating bundle builds and deployments to AWS S3. • Decoupled frontend Angular applications that were embedded into our Rails middleware into their own standalone applications. Increased turnaround time for enhancements and bug fixes by 100% and enabled highly rapid iterations to proceed on the project with instant deployment capability.

I love working with Rails, so much that I’ve worked with it for over 10 years now :)