Hire senior Ruby on Rails developers

I help Rails developers build web-powered iOS and Android apps with Hotwire Native. Hotwire Native enables teams to build high-fidelity hybrid apps by rendering HTML inside of native navigation. It means your team can reuse mobile web views across platforms. Create your views once, in Ruby + HTML, and render them on mobile web and in the iOS app. And when you need even more fine-grained control, you can drop down to native UIKit and Swift UI to build fully native views. This flexibility lets you produce large apps with small teams. Achieve baseline HTML coverage for free. Upgrade to native views as needed. Here's how I can help: Bridge the gap between your Rails app and iOS by implementing the necessary Ruby and Swift + Kotlin code. Level up your team's Hotwire Native + Hotwire skills with pair programming and workshops. Offer advisory guidance on best practices in the hybrid space from my 5+ years building Hotwire Native apps. I'm also the solo-founder of RailsDevs, the site you're using right now.

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.

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 🙌🏻

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.

My name is Artsiom and I have worked as a software engineer since 2013, that is more than 11 years of experience as of now. I started my career as a Ruby and Ruby on Rails engineer and after some time I added Sinatra to my experience. Besides Ruby, I have experience with PostgreSQL/MySQL/MongoDB. Also, I have experience in Front-end development with pure JavaScript and its libraries (jQuery, React.js, Node.js). Since 2013 I have taken part in different projects in different domains: fintech, e-education, real estate, and promo. On projects where I participated, we usually used scrum or kanban. I have participated in architectural decisions, team leading, leading code reviews. I have experience in building applications from scratch and improving legacy code base, optimizing performance and tuning security. I have covered applications by test from scratch and have added tests into existing projects for increase coverage (as usual use RSpec, VCR, RSwag, Cypress). Also, I have an experience as a Ruby Tech Lead. The team was 8 engineers with different levels. In this role, I participated in pre-sales activities (communicating with future customers, providing estimation and technical proposals), interviewing candidates, providing feedback to teammates and from engineer to business, conducting 1-1 meetings, and mentoring. I provide a high level of support to the customer and help to reach the goals of projects and customer's business.

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!

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)

10+ years working with Ruby: - Plain Ruby (versions from 2.2 to 3.3) - Ruby on Rails (versions from 4 to 7) - Sinatra, Redmine, YAML, Slim etc. - Leading a corporate “Learning Ruby” club - Conducted technical interviews for Ruby developer positions Deep expert in algo trading (stocks/crypto), professional communicator (have psychological diploma), besides Ruby actively using Python and C#. Always curious to learn new fields, technologies, and people.

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.

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.