Hire mid-level Ruby on Rails developers

I excel at problem-solving, app design, and architecture. I like to develop user-friendly applications and follow new technologies.

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.

Hi, with 7+ years of experience as a Ruby on Rails and full stack developer, I excel in building dynamic and scalable web applications. My expertise spans across a range of JavaScript frameworks, including ReactJS, NextJS, NodeJS, NuxtJS, and VueJS. I combine my strong backend skills with modern frontend technologies to deliver seamless, high-performance solutions My journey started with a keen interest in technology and quickly evolved into working on complex projects. Recently, I led a team to build a scalable microservices-based application, which enhanced both user experience and performance. I’m also exploring serverless technologies, like AWS Lambda, to improve application efficiency. What makes me stand out is my ability to handle both frontend and backend development, solve tough problems, and create user-friendly solutions. My diverse skills and hands-on experience make me a strong addition to any development team. Let’s build something great together!

I wish I would have been exposed to programming much earlier in life. The first programming book I read was "Learn Ruby the Hard Way" by Zed Shaw. That, coupled with an interest in graphic design seemed like a gateway into a very enjoyable career where I could be logical and creative! Shortly after, I joined a bootcamp in 2016. I've worked with quite a few frameworks and libraries since 2016. Here's what I've learned: - Ruby is super fun, Rails is not dead, convention-over-configuration is my preference whenever possible. - JavaScript is cool but the front-end world can be exhausting; too much reinventing the wheel and forgetting about web fundamentals. - I enjoy CSS a lot. - Hotwire and Stimulus are a very cool approach to efficiently providing a user with a SPA-like experience - I'm proficient in React but like to keep it simple, sustainable, composable. I strive to find the appropriate balance of simplicity and complexity in order to: - meet the project needs - be considerate of fellow developers who will need to read, understand, work with the code I write - enable Junior devs to step into the codebase and understand/mimic/extend the codebase. Unique Traits: - Trilingual (English, Spanish, French) - Education background (I can mentor Junior devs) Positive Traits: - Passionate about good quality - Tenacious Personal focus: - I've been focused on diving deeper into the Rails ecosystem and my aim is to find a role with a company using Rails + Hotwire, or Rails + React. NOTE: The link "Website" link in my bio is Github. I'm currently redoing some portfolio projects.

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, Minitest, Capybara, Postgres, Tailwind, and jQuery. 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 Software Developer with Ruby, Rails, and JavaScript expertise. I have recently spearheaded major technology upgrades and process optimisations, substantially elevating operational efficiency and user engagement. I am fully committed to continuous improvement and aim to use my technical skills to make impactful contributions in an Agile environment.

My Developer Journey: From the moment I started coding, I was hooked. What began as a simple curiosity quickly evolved into a passion that has driven my career forward. My journey as a developer started with a fascination for problem-solving and an eagerness to build something from scratch. Over the past three years, I’ve honed my skills primarily in Ruby on Rails, but my adaptability has allowed me to swiftly pick up new technologies, such as Flutter, to meet diverse client needs. This blend of deep expertise and versatility is at the core of what I bring to the table. A Recent Milestone: One of my proudest accomplishments was leading the development of a complex web application for a high-profile client. Not only did I navigate technical challenges with ease, but I also collaborated closely with the client to ensure their vision was realized. The project’s success was marked by positive client feedback and a significant boost in user engagement, which reinforced my belief in the power of a collaborative and client-focused approach. Lifelong Learning and Passion: I’m constantly driven by a desire to learn and grow. Recently, I delved into the world of spearfishing, which, although not directly related to coding, has taught me patience and precision – qualities that I bring into my development work. My current read, ‘Million Dollar Weekend’ by Noah Kagan, is further fueling my entrepreneurial spirit, aligning with my long-term goal of launching my own SaaS startup. Unique Skills and Contributions: What sets me apart is my unique combination of technical skills and a genuine passion for innovation. I’m adept at picking up new tools and frameworks quickly, a trait that has proven invaluable in fast-paced, ever-evolving projects. My collaborative nature ensures that I work seamlessly with teams, contributing ideas and solutions that drive projects forward. Additionally, my experience in both small startups and larger projects allows me to navigate different environments and deliver results that exceed expectations.

A developer with a designer's attention to detail. Collaborating with design to create beautiful experiences. Building component and CSS libraries to facilitate modular development and application consistency.

TLDR- I know Rails, let’s build together. I understand that the most important part of any project is getting it in front of users. I am the ultimate buy one get one free; a true full stack developer with years of experience working with Rails and React. Let’s leverage my skill set to get your idea from in your head to on the web. Skills Great knowledge of Ruby. Experienced Next/React user. Sidekiq expert. Domain Modeling. CSS (SCSS, StyleComponents, Tailwind, Bootstrap, Whatever is clever). API’s and Integrations are my jam. I am very familiar with the JavaScript ecosystem including modern React and the current rise of hypermedia on, over, or around the wire. From LiveView in Phoenix, to Hotwire and HTMX, I’ve hosted projects in each. Legacy Code I have experience working with large media organizations that managed many forms of media from digital to printed magazine. Magazine systems are archaic, and very brittle. I refactored America’s Test Kitchen’s subscription service, allowing for greater resilience and capture. I am currently working for an enterprise grade e-commerce platform. We leverage Rails (Sidekiq) and process ~billion jobs a day.

I'm a senior software developer with about 15 years of extensive hands-on experience and a demonstrated ability to deliver high-quality results. I have expertise in multiple cutting-edge web application frameworks, specifically, Ruby on Rails and Node JS. I also have good hands in frontend Javascript frameworks React JS and Angular JS. I've recently worked with the RightInbox, a high-ranking Productivity application / Google Chrome Extension with a 4.7 rating on the Chrome Store and a feature by Google, was a project where I started as a developer and grew to become the Engineering Manager. During my time on the project, I used my advanced knowledge of Node JS to enhance the product's functionality, increase its user base, and ensure its smooth operation. Simultaneously I developed the ZoomShift platform, a scheduling software built on Ruby on Rails. Here, my role was about active development however more focused on strategic technological choices and project delivery. Zoomshift is well-regarded for its efficiency and was even utilized during the US elections to manage the shifts of volunteers. I've worked with FindEmails, which finds and verifies emails while you are on LinkedIn or browsing the web with the FindEmails Chrome Extension. Skills:- - Solutions - Optimization and Performance - Scalability - Architecture - Ruby on Rails - NodeJS - ExpressJS - ReactJS - AngularJS - Bootstrap - SQL, PostgreSQL, NoSQL, DynamoDB, MongoDB, MariaDB, MySQL, Redis - Stimulus - Integration of all levels of APIs - Selenium, RSpec, Mocha, Mini Test, Chai.JS, Sinon.JS - Digital Ocean - Heroku - Render - Action Cable and Web Sockets - JavaScript, jQuery, jQuery UI, CoffeeScript, TypeScript - HTML5, HAML, Slim - CSS, SCSS - GCP, AWS, Heroku - EC2, S3 - Puma, NGINX, Capistrano - Elastic Search, Algolia - GIT - CI/CD - Jira - Trello - Asana