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Hire the best RSpec Specialists in Ukraine

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  • $45 hourly
    • 5.0/5
    • (15 jobs)
    I've been working with RoR since 2009. I started to love ruby and rails at the times when developers had to support IE6 and prototype was a default js framework for rails. Since that time I've worked on many projects and seen a lot. Most of the projects are startups but there are also big successful systems. For most of the time I've worked as a team-lead (tech-lead) which means playing in a team. The biggest team I had was about fifteen people. I got many legacy projects which made me an expert of refactoring and BDD but I also created many projects from scratch. I think my biggest plus is that I worked on many (really many) projects. Every new project is some new experience. Hence I had a chance to get experience with most of the latest technologies and always be up to date. Implementation of particular feature is not the only thing I can do, I can also consult about which approach is better and give advise of how better to proceed. Btw, all my time I've been working as a full stack developer. Very rarely I worked only on a back-end and only with RoR. Usually I also deploy the app to Heroku, Engineyard, AWS or other hosting systems, work on front-end (angularjs, reactjs), take care of page optimizations, caching, scaling, integrating, etc. All the experience I've got made me a universal IT guy who is productive as a single software developer or a person who can take care of your app. Let's make something cool together!
    Featured Skill RSpec
    MongoDB
    MySQL
    Backbone.js
    Bootstrap
    AngularJS
    Ruby on Rails
    Ruby
    Ionic Framework
    Continuous Integration
  • $35 hourly
    • 5.0/5
    • (4 jobs)
    2+ years of working experience in IT at positions of Ruby on Rails Developer. Used wide range of technologies of software development, deployment. Main stack based on the Ruby language and related technologist for backend. Also experienced with JS and modern frontend development. Back-end stack: Ruby, Ruby on Rails, RSpec, Capybara, RuboCop, Redis, PostgreSQL, MySQL. Front-end stack: JavaScript, React, JSX, Ajax, HTML, Haml, ERB, Slim, CSS, SCSS, Bootstrap, JQuery. Deploy: Heroku, AWS. Additional skills: GIT (GitHub, GitLab, Bitbucket), TDD, BDD. Multilingual: English, Russian, Ukrainian. Master’s degree in Applied Mathematics from Khmelnytskyi National University. Motivated and customer-oriented Ruby / Ruby on Rails developer. I am results-driven, deadline-oriented, organized, and energetic programmer with experience in back-end programming. I can work under tight deadlines and deliver expected results while integrating easily into teams with people from all over the world. Convert business needs into software solutions. Communicate effectively with both technical and non-technical clients, mentoring while being self-motivated.
    Featured Skill RSpec
    jQuery
    Ruby
    Ruby on Rails
    Redis
    PostgreSQL
    JavaScript
    Git
    React
    MySQL
    AWS CodeDeploy
    Behavior-Driven Development
    Capybara
    Heroku
    Test-Driven Development
  • $40 hourly
    • 5.0/5
    • (2 jobs)
    SUMMARY * Having years of experience in developing web-based applications using Ruby on Rails and other languages. * Experience in designing database structure (MySQL, PostgreSQL). * Good understanding of MVC architecture. * Experience with high load application. * Experience in every phase of SDLC. * Highly motivated and quick learner, works well with legacy and start-up projects.
    Featured Skill RSpec
    React
    Agile Software Development
    Scrum
    OAuth
    CSS
    CI/CD
    HTML
    HAML
    JavaScript
    Git
    Database Design
    Docker
    Ruby on Rails
    Redis
  • $35 hourly
    • 5.0/5
    • (14 jobs)
    I am a highly experienced full-stack developer with strong knowledge and practical experience in software development on Ruby and Rails web applications. I have over 16 years of experience in software architecture and development in Ruby. Developed a wide range of Ruby and Rails applications in different domains. Worked on server-side back-ends and front-ends as well. Strong analytical and problem-solving skills, always work hard to deliver high-quality and fast results.
    Featured Skill RSpec
    Behavior-Driven Development
    AWS IoT Core
    Cypress
    Jasmine
    TypeScript
    PostgreSQL
    Angular
    Cucumber
    Ruby on Rails
    Ruby
    Git
    MongoDB
    JavaScript
    MySQL
  • $35 hourly
    • 5.0/5
    • (6 jobs)
    Hi there! I am Team Lead of Top Rated Web Development Agency. ✅ UI & UX design ✅ Backend development(Ruby on Rails, Express.js, Django) ✅ Front-End development(React.js, Stimulus.js, PSD to HTML) ✅ CMS development(Wordpress, Webflow) ⭐ Areas of expertise: - Ruby / Ruby on Rails / Hotwire Turbo / Rspec / PostgreSQL - JavaScript / CoffeeScript / jQuery / React.js / Stimulus.js - HTML / HAML / SLIM / PUG - CSS / SCSS / SASS / PostCSS - Bootstrap / Zurb Foundation / Materialize - Sketch / Photoshop / Adobe XD / Avocode / InVision - Wordpress - Git
 / Git flow - Heroku, AWS, DigitalOcean If you are looking for a reliable web development partner focused on results and delivery - let's start work together!
    Featured Skill RSpec
    API
    CSS 3
    HTML5
    SQL
    jQuery
    Git
    Ruby on Rails
    MySQL
    MongoDB
    Ruby
    PostgreSQL
  • $60 hourly
    • 5.0/5
    • (13 jobs)
    I have been working in IT-industry for more than 12 years, 9 of which as a front-end, back-end developer and database architect. I'm working as a server department team leader for more than 8 years on different projects, so working with requirements, architecture design, initiative to make the product better - all this are part of my daily routines. Highly efficient and responsible, always work hard to deliver the best possible result. Top 10% of Ruby on Rails and JS developers I have deep knowledge of Ruby on Rails (2.x - 4.x), MySQL, PostgreSQL, ClusterPoint, TrueVault, JavaScript, JQuery, Ajax, CoffeeScript, AngularJS, ReactJS, Underscore.js, Bootstrap, Amazon Web Services, Capistrano, Heroku, RSpec, Capybara, Cucumber, ActiveAdmin, Nginx, Passenger, Memcached, Redis, Rescue, Sphinx, Elasticsearch, Monit, Zabbix, Carp, Nagios, Debian, CentOS, openSUSE, Ubuntu, Twilio API, Nexudus API, PayPal API, WebEx API.
    Featured Skill RSpec
    Twitter/X Bootstrap
    JavaScript
    Ruby on Rails
    PostgreSQL
    React
    jQuery
    Amazon Web Services
    MySQL
    Elixir
  • $60 hourly
    • 5.0/5
    • (27 jobs)
    Hi! I'm a fervent software engineer and your partner in digital innovation. With a rich background in web development, I specialize in crafting tailored web applications, intuitive APIs, and dynamic chatbots (Facebook, Telegram, Viber) that drive engagement and success. My expertise extends across the entire development lifecycle – from conceptualization and coding to deployment and ongoing management in production environments. Why Choose Me? 1. I can provide customized solutions: whether you're envisioning a robust web application, seamless user interfaces in JavaScript, or efficient background processes for peak performance, I tailor my solutions to fit your unique needs, secured with top-notch authentication and authorization systems, and comprehensive database support. 2. Beyond development, I offer a suite of complementary services including code review, security & performance audits, deployment optimization, and cloud server management, ensuring your project excels on all fronts. 3. I use client-centric approach: - Security: Your trust is paramount. I ensure transparent communication and commitment, guaranteeing I'll be with you every step of the way. - Reliability: Clarity and precision guide our collaboration. What we agree upon is what you will receive, no exceptions. - Consistency: Experience unwavering quality from initiation to delivery, ensuring your project remains on the path to success. - Initiative: Beyond execution, I invest in your vision by offering insights, refining requirements, and proactively addressing potential challenges. Your project isn't just another job to me – it's an opportunity to forge a lasting partnership and create something genuinely impactful. I'm here to bring your ideas to life in ways that exceed your expectations. Reach out to me, and let's embark on a journey to turn your vision into reality. Let's Build Something Remarkable Together!
    Featured Skill RSpec
    Amazon Plugin
    React Native
    API
    Phoenix
    HTTP
    Database Development
    Microservice
    Ruby
    Elixir
    Ruby on Rails
    JavaScript
    SQL
    React
  • $39 hourly
    • 4.9/5
    • (7 jobs)
    I'm a skilled Ruby on Rails developer. Development is my work, my hobby and lifestyle as well. I have good expertise in using Ruby/Rails in production UNIX/LINUX environment. My excellent English makes collaboration with clients smooth and easy. My Skills: Languages: Ruby, JavaScript Frameworks: Ruby on Rails, jQuery Markup: HTML5, CSS3, SASS, Bootstrap, Semantic-ui, Materialize Templating system: Embedded Ruby Test frameworks: RSpec, MiniTest Data storage: MySQL, PostgreSQL IDE: RubyMine, Visual Studio
    Featured Skill RSpec
    Microsoft Visual Studio
    Bootstrap
    Ruby on Rails
    Ruby
    Sass
    MySQL
    CSS
    HTML5
    JavaScript
  • $46 hourly
    • 5.0/5
    • (19 jobs)
    I have been working as Full stack since 2009 and I experienced in the frontend, backend and servers maintaining (DevOps). You can find the projects I built in my portfolio. For the last couple of years, I prefer to use Angular for front end development. I also have Ember experience and the Ember concept is much better and closer to rails, but unfortunately, the low community is pretty annoying and sometimes it could take much time to solve unexpected issues. The Angular has a much powerful community and this is a great plus. For the Backend, I use Rails and the gem named Grape if I need to build the API. Someone likes to use RailsApi gem, but I don't like the versioning, Grape is much better at that point for me. Also, the grape request validations are really cool. It seems Grape is a bit quicker then RailsApi. The best quality project, could not be without a ​test, each part should be covered by tests, usually, I use RSpec and capybara. Also, I have experience in javascript testing with Jasmine, and Jasmine is pretty helpful, but sometimes it is really annoying to keep the template fixtures in the actual state, and that is pretty possible to update the view and the jasmine stay green, however, the logic is changed. Based on this the capybara scenario is much better for me. I prefer to build projects from scratch because it allows to fully feel the project and apply the architecture development knowledge.
    Featured Skill RSpec
    Ruby
    jQuery
    Ruby on Rails
    AngularJS
  • $35 hourly
    • 4.8/5
    • (44 jobs)
    🥇 Top 1% - Upwork Ruby on Rails & AI Solutions ✅ Expert in AI LLM OpenAI GPT SAAS ✅ Senior developer (10+ years experience) ✅ 50 completed projects & 4000 hours on UpWork! 🇺🇸 Work in PST/PDT time zone. Hi, 👋 I'm Alex! I've worked with dozens of Ruby on Rails applications, from small startups to huge production apps with millions of users. Included: SAAS, IAAS, marketplace, search engines etc. Also, I am an OSS contributor, maintaining RubyAI, kredis, cookies_eu, and other gems in the Ruby ecosystem. - Ruby and Ruby on Rails - JavaScript, React - Stimulus, Turbo, Hotwired - HTML, HAML, and HTML5 - PostgreSQL and MySQL for backend databases - Version control with Git and GitHub - SAAS, IAAS, eCommerce applications. - UX/design, SEO - DevOps (Hetzner, DigitalOcean etc) - OpenAI expert
    Featured Skill RSpec
    CSS
    AI Model Integration
    AI Platform
    AI Bot
    Test-Driven Development
    Elasticsearch
    Web Application
    MySQL
    API
    AI Implementation
    AI Consulting
    JavaScript
    Ruby
    Ruby on Rails
  • $35 hourly
    • 0.0/5
    • (0 jobs)
    A middle Ruby on Rails engineer with over 5 years of commercial experience in web development. Experience in refactoring and high-performance application development. Took a participate in the Wayforpay gem development that is used for automatic online payments. Currently it is successfully implemented and used by Cablook Taxi.
    Featured Skill RSpec
    Ruby on Rails
    jQuery
    PostgreSQL
    CoffeeScript
    Bootstrap
    Sass
    Capybara
    Slim
    React
  • $25 hourly
    • 5.0/5
    • (14 jobs)
    I’ve been building Ruby on Rails websites and web apps for over 5 years, focusing on delivering high-quality results and finding the best solutions for each project. I love bringing ideas to life and have experience successfully launching products. 💡 I’m looking for exciting challenges and long-term collaborations where I can contribute and grow. ⤵️ Here are the skills I feel confident with: Backend: Ruby, Ruby on Rails Frontend: JavaScript, Vue.js, Vuetify, jQuery, HTML, CSS, SASS, Bootstrap Testing tools: RSpec Databases: MySQL, SQLite, PostgreSQL Cloud & DevOps: AWS APIs: REST API, Facebook API, Stripe, TurboSMS API, Fondi API Collaboration tools: Jira, Trello, Asana, Slack, MS Teams, Git (GitHub, GitLab, Bitbucket) I’m comfortable working with these gems: Devise, Active Admin, Kaminari, CarrierWave, Nokogiri, Redis, Resque, Whenever, MiniMagick, aws-sdk, Bugsnag, Skylight, dotenv-rails, etc. I always strive to meet my clients’ needs and deliver the best possible solutions. 💬 Tell me about your project – let’s build something great together! 🚀
    Featured Skill RSpec
    API
    API Development
    Web Application
    PostgreSQL
    MySQL
    Ruby
    jQuery
    Bootstrap
    JavaScript
    Vue.js
    HTML
    CSS 3
    Ruby on Rails
  • $35 hourly
    • 0.0/5
    • (1 job)
    Hi! I am Mykola 🙂 I am a Ruby developer with over 10 years of experience, I have a deep understanding of the language and its various frameworks such as Ruby on Rails, Sinatra, and Hanami. Throughout my career, I have worked on various projects, ranging from 🛒 e-commerce platforms and 🗺 travel apps to social networking sites. They resolved issues of complex interaction between 💸 various payment systems and APIs for interaction with third-party services. Basically, the implementation was built on AWS stack з CI/CD integration from Github by Github Actions. Another direction of projects that were implemented for last few years was checking business ideas through the creation of MVP prototypes. Language Ruby and framework Rails allow to build such systems in weeks from scratch to production. My expertise lies in designing and developing scalable, high-performance web applications using Ruby. I have a strong understanding of database design and management, as well as proficiency in integrating third-party APIs and services. I also have experience working with front-end technologies such as HTML, CSS, and JavaScript. In addition to my technical skills, I am a strong communicator and enjoy collaborating with team members to bring projects to successful completion. I am committed to delivering quality work within tight deadlines and am always looking for opportunities to learn and improve my skills. If you're looking for a skilled and reliable Ruby developer for your project, look no further. Let's work together to bring your ideas to life.
    Featured Skill RSpec
    App Development
    Back-End Development
    Web Development Consultation
    Web Development
    RESTful API
    Ruby on Rails
    Git
    HTML
    JavaScript
    Ruby
    CSS
    PostgreSQL
  • $35 hourly
    • 5.0/5
    • (2 jobs)
    Hi, I'm Serge - a Ruby on Rails Developer and Web Platform Architect with a passion for building and analyzing web startups. With over 9 years of experience in software development, I've had the opportunity to work on complex web applications ranging from social networks to investment platforms. As a critical thinker and problem solver, I have a strong ability to analyze and identify potential issues in a project and design solutions that effectively address them. My extensive experience with architecture and database modeling, unit and feature testing, API integration, profiling systems, and performance optimization allows me to deliver high-quality results in a timely manner. Beyond my technical expertise, I bring a unique perspective to my work thanks to my background in Computational Linguistics and a deep interest in Mathematics. I've developed a variety of scientific analytics approaches and tools, including mind mapping and various types of diagrams, to help me plan and visualize complex projects. Currently, I am working full-time at Gotoinc, where I have contributed to the successful development and acquisition of a highly successful international real estate investment platform, Update Capital, for the US and Canada markets. I'm well-versed in Ruby on Rails, PostgreSQL, AWS S3, Heroku, ActiveAdmin, Bitbucket, Capybara, DelayedJob, DeviceTwoFactor, Devise, Geocoder, JQuery, PDFTK, Puma, RSpec, Ruby, Seeds, Twitter Bootstrap, and Webmock. In my free time, I love making mind maps, studying mathematics, and spending time with my cat Musia. If you're interested in working together or have any questions, feel free to reach out to me. I love making mindmaps of the tools I'm using.
    Featured Skill RSpec
    Calculus
    Differential Calculus
    Mathematics
    Analytics
    Ruby on Rails
    PostgreSQL
    Web Development
    Web Application
    Vue.js
    Business Analysis
    Mind Mapping
    Angular
    Mathematical Optimization
  • $37 hourly
    • 0.0/5
    • (1 job)
    Senior Full Stack Developer with 𝟳 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 𝘀𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘇𝗶𝗻𝗴 𝗶𝗻 𝗡𝗼𝗱𝗲.𝗷𝘀, I excel in creating high-performance, scalable backend systems and web applications. I am passionate about delivering optimized and maintainable code, ensuring robust backend performance for complex projects. 𝗠𝘆 𝗽𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 𝗮𝗰𝗵𝗶𝗲𝘃𝗲𝗺𝗲𝗻𝘁𝘀 𝗶𝗻𝗰𝗹𝘂𝗱𝗲: - Building a highly scalable backend system using Node.js for an e-commerce platform that improved system efficiency and user experience - Developing a Node.js API for a financial services app that processes complex data in real-time with a focus on high availability and security - Designing and implementing RESTful APIs with Node.js and Express.js that integrate seamlessly with various frontend frameworks and improve client-server communication - Optimizing Node.js applications for high traffic, significantly reducing response times x4 and ensuring better resource management 𝗪𝗵𝗮𝘁 𝗺𝘆 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝘀𝗮𝘆 𝗮𝗯𝗼𝘂𝘁 𝗺𝗲: 🌟 "Oleksii's expertise in Node.js has been instrumental in improving our healthcare app's performance. He's always delivers results on time! Will recommend" - "Saisy" Project 🌟 "Oleksii's work on our backend has dramatically improved our system's reliability and scalability" - E-commerce Project 𝗛𝗼𝘄 𝘁𝗵𝗲 𝗵𝗶𝗿𝗶𝗻𝗴 𝗽𝗿𝗼𝗰𝗲𝘀𝘀 𝗹𝗼𝗼𝗸𝘀: 1. Share your project documentation and challenges with me. 2. I will review the documentation and provide initial insights. 3. Let's schedule a call for an in-depth discussion and an interview. 4. If we align on expertise and values, we'll open a contract. 5. Onboard and start collaborating on your project. 𝗡𝗼𝗱𝗲.𝗷𝘀 𝗦𝗸𝗶𝗹𝗹𝘀: 🔹 Node.js, Express.js, NestJS 🔹 RESTful API Development 🔹 GraphQL Integration 🔹 WebSockets, Socket.io 🔹 JWT Authentication 🔹 MongoDB, PostgreSQL, MySQL 🔹 Docker, Kubernetes for deployment 🔹 Unit Testing with Mocha, Chai, Jest Software Engineering Skills: 📚 JavaScript, TypeScript, ES6 📚 Git, GitHub 📚 Strong knowledge of Asynchronous Programming in Node.js 📚 Building highly performant and scalable applications following best practices 📚 Experience with Microservices Architecture 📚 Proficiency in Agile methodologies 📚 Strong problem-solving and debugging skills If you are ready to discuss your Node.js project, click the 🟢𝗜𝗡𝗩𝗜𝗧𝗘🟢 button, and let's connect 🤝
    Featured Skill RSpec
    Front-End Development
    Back-End Development
    Full-Stack Development
    MonoDevelop
    NodeJS Framework
    Node.js
    Amazon EC2
    Vue.js
    Ruby on Rails
    Ruby
    Web Application
    Sinatra
    HTML
    CSS
  • $30 hourly
    • 5.0/5
    • (0 jobs)
    With a strong academic background in computer science and several years of professional experience, I have honed my skills in various areas of web development. I deeply understand Ruby on Rails, a powerful and efficient web application framework known for its productivity and developer-friendly conventions. I have successfully delivered numerous projects utilizing Ruby on Rails, leveraging its robust features to build scalable and maintainable web applications. In addition to Ruby on Rails, I am highly proficient in React, a popular JavaScript library for building dynamic and interactive user interfaces. I have a strong grasp of modern JavaScript frameworks and libraries, and I am adept at utilizing React's component-based architecture and state management capabilities to create engaging and responsive front-end applications. In summary, my background and skills as a Senior Full-Stack Developer encompass expertise in Ruby on Rails, React, Redux, and AWS. I am committed to delivering high-quality software solutions, leveraging my knowledge and experience to create efficient, scalable, and user-friendly web applications. I continuously stay updated with the latest technologies and industry best practices, enabling me to provide smart and innovative solutions to complex development challenges.
    Featured Skill RSpec
    Heroku
    Git
    RESTful API
    Amazon Web Services
    MongoDB
    MySQL
    PostgreSQL
    ECMAScript
    TypeScript
    Next.js
    Redux
    React
    Ruby
    Ruby on Rails
  • $45 hourly
    • 0.0/5
    • (0 jobs)
    I am a full stack developer with about 5 years of commercial experience in PHP, JavaScript, Ruby, databases, APIs, and DevOps. I have a strong track record of collaborating with cross-functional teams to deliver high-quality, scalable solutions. Technologies & Experience: • Front-End: JavaScript, Typescript, React, Redux, Next.js, Angular 10+, Vue.js, Nuxt.js, Tailwind CSS, Bootstrap, Material UI, Shadcn/ui • Back-End: PHP, Laravel, CodeIgniter, Ruby, Rspec, Ruby on Rails, Node.js, Express.js, Nest.js • Cloud Computing: Amazon Web Services, Microsoft Azure, Google Cloud • Database: MySQL, PostgreSQL, MongoDB, Firebase • CMS: WordPress, Shopify, Sanity, Strapi, Contentful, Storyblok, Prismic • TDD: Jest, Mocha, Chai, Selenium Let’s connect to explore how I can build a robust, scalable web solution tailored to your specific needs.
    Featured Skill RSpec
    ExpressJS
    Node.js
    Laravel
    PHP
    Ruby on Rails
    Nuxt.js
    Vue.js
    Angular
    Tailwind CSS
    Next.js
    React Native
    React
    TypeScript
    JavaScript
  • $40 hourly
    • 0.0/5
    • (0 jobs)
    I am a freelance web developer with a strong foundation in building dynamic, responsive websites and applications. Some of my core skills are: - Front-end & Backend development (ROR, React, Node.js, Golang) - Database design & implementation (MySQL, PostgreSQL) - General website layout & design - Bugs/issues identification & resolution - Collaborative problem-solving - Refactoring & optimizing code I absolutely love what I do and for me coding is more than a job, it is a passion. I am always looking for new clients, new relationships and new experiences.
    Featured Skill RSpec
    Node.js
    RESTful API
    SQL
    Sinatra
    TypeScript
    React
    Ruby on Rails
    Ruby
  • $45 hourly
    • 5.0/5
    • (13 jobs)
    Hi. My name is Lyubomyr. I am from Lviv, which is a beautiful European city and big IT center in Ukraine. I am a full-stack developer with more than 10 years of experience. Worked on many big and small projects as back-end/front-end developer or team-lead. Built a lot of complex saas solutions, some of them become very successful with millions of users. Main tech stack: - Ruby/Rails, Elixir/Phoenix - AngularJS (IonicFramework), ReactJS, VueJS
    Featured Skill RSpec
    Ionic Framework
    PostgreSQL Programming
    HTML5
    jQuery
    CSS 3
    JavaScript
    Ruby on Rails
    AngularJS
    Ruby
  • $45 hourly
    • 5.0/5
    • (5 jobs)
    Professional engineer with 10+ years of experience in development and testing, as a result, I have good vision of working processes and people’s place in them. I am analytical thinker, responsible and proactive, positive and communicative, also open­minded and goal­oriented. These skills allow me efficiently collaborate with team members to achieve project goals. Experience: • Expertise in Web application development and testing using RoR, Rspec, Capybara, JavaScript, JQuery. • Expertise in front end development, using TypeScript, JavaScript, JQuery, AngularJS, React, Ajax, HTML5, CSS3. • Expertise in mobile development using Ionic Framework. • Expertise in constructing and using relational databases (MySQL, PostgreSQL) • Strong communication skills, responsible, team player. • Mentoring and coaching experience, methodical approach to task completing.
    Featured Skill RSpec
    Jest
    Ruby on Rails
    Scrum
    Twitter/X Bootstrap
    Automated Testing
    React
    JavaScript
    TypeScript
    Ionic Framework
    Ruby
    AngularJS
  • $40 hourly
    • 5.0/5
    • (31 jobs)
    Hello and welcome to my profile! I'm a Ruby on Rails back-end software engineer with more than 10 years of experience and almost 12.000 hours of proven track record here on Upwork. I'm in love with Ruby programming language and I'm very passionate when working. 💡My key skills are💡: Backend: ✅ Ruby on Rails ✅ MySQL, PostgreSQL, MongoDB ✅ RESTful APIs ✅ JSON API serializer, Rswag ✅ Prawn Frontend: ✅ jQuery ✅ Underscore.js ✅ Stimulus.js ✅ turbo_frame ✅ AJAX ✅ CSS/ CSS3 ✅ HTML/HTML5 ✅ Bootstrap 5.3.0 ✅ Zurb Foundation I'm skilled in test writing: ✅ Rspec, Cucumber, Capybara I am familiar with: ✅ AWS deploy ✅ Heroku deploy ✅ Capistrano I have worked a lot with 3rd party API integration (social networks, Google maps, mailing services, payments, video hosting) If you have an idea and need to implement it, then feel free to contact me and we'll discuss. I can build any product you want, either small Ruby script or complex Web application.
    Featured Skill RSpec
    Capistrano
    RESTful API
    JavaScript
    Web Development
    API Integration
    Ruby
    PostgreSQL
    AJAX
    MongoDB
    HTML
    MySQL
    Ruby on Rails
    CSS
    jQuery
  • $15 hourly
    • 5.0/5
    • (3 jobs)
    ▪ 6+ years of experience in IT area. ▪ Experience in manual testing.. ▪ Solid testing experience using Agile (Scrum) Software Development Methodology processes. ▪ Involved in different types of testing: functional, regression, smoke, integration, usability, ad-hoc. ▪ Knowledges of Ruby language.. ▪ Experience of testing web applications. ▪ Experienced in testing a variety of e-Commerce websites. ▪ Strong skills in designing test cases, test plans and delivering quality test reports. ▪ Proficient in test case creation, test execution and bug tracking. ▪ Strong knowledge of software development life cycle and bug life cycles. ▪ Experienced in working in a command.
    Featured Skill RSpec
    Manual Testing
    Git
    Capybara
    Automated Testing
    Cucumber
    Ruby
    Selenium WebDriver
  • $22 hourly
    • 0.0/5
    • (0 jobs)
    𝐘𝐨𝐮 𝐧𝐞𝐞𝐝 𝐭𝐨 𝐝𝐞𝐯𝐞𝐥𝐨𝐩 𝐚𝐧 𝐌𝐕𝐏 𝐟𝐚𝐬𝐭? 𝐒𝐮𝐩𝐩𝐨𝐫𝐭 𝐚𝐧 𝐞𝐱𝐢𝐬𝐭𝐢𝐧𝐠 𝐚𝐩𝐩? 𝐎𝐫 𝐦𝐚𝐲𝐛𝐞 𝐲𝐨𝐮'𝐫𝐞 𝐟𝐚𝐜𝐢𝐧𝐠 𝐚 𝐬𝐞𝐚 𝐨𝐟 𝐛𝐮𝐠𝐬? I've got you! Whether you're launching something new or dealing with tricky issues, I'm here to provide top-notch development expertise and make your tech headaches disappear. Let's connect and solve your problem—fast and with flair! What I bring to the table: 👨‍💻 Over 3 years of professional experience in Ruby on Rails, JavaScript, and building rock-solid backend systems 🚀 Skilled at crafting MVPs that are not just fast to market but built to scale 🐛 A certified bug-buster, ready to fix those pesky issues that keep your app from reaching its full potential 💡 Full-time backend developer by day, passionate freelance coder by night—I've got a serious drive to make great things happen! Tech I'm fluent in: - Ruby on Rails (because who doesn’t love powerful frameworks?) - JavaScript (yes, I'm that double-threat) - API development & integrations - Test-driven development (because no one likes surprises, except in a good way) - And much more... So, what's the plan? Let’s chat, bring your project to life, and have some fun doing it! 🚀
    Featured Skill RSpec
    API Integration
    Amazon Web Services
    API
    JSON API
    HTML
    PostgreSQL
    MySQL
    React
    API Development
    JavaScript
    Web Development
    Full-Stack Development
    Ruby
    Ruby on Rails
  • $30 hourly
    • 0.0/5
    • (1 job)
    As a skilled developer with extensive experience in PHP, Ruby, and Rails, I have a proven track record of delivering high-quality projects that meet or exceed client expectations. Throughout my career, I have honed my skills in refining and supporting existing projects, improving CMS systems, and developing new modules to enhance the functionality of web applications. In my previous role as a PHP department head, I established and managed a team of developers and led the development of a business automation service that included a range of features such as employee accounting and management, role-based access control, copywriting, Google rankings analysis, invoicing, task management, and SEO optimization. I also developed a metadata synchronization module to ensure that site metadata was always up-to-date. Additionally, I was responsible for finalizing the API for servicing Angular, iOS, and Android web clients, as well as optimizing and providing support for legacy systems, including an admin panel. My expertise in Ruby and Rails allowed me to work effectively on a range of projects, including the development of a metadata management module for the SeoShield service. If you're looking for a skilled developer who can deliver high-quality work on time and on budget, I would be happy to discuss your project with you.
    Featured Skill RSpec
    Vue.js
    Nuxt.js
    Yii2
    MySQL Programming
    Unix
    Code Review
    Elasticsearch
    Ruby on Rails
    Ruby
    PostgreSQL
    JavaScript
    PHP
    Redis
    MySQL
  • $15 hourly
    • 0.0/5
    • (1 job)
    I am an experienced Full-stack (Ruby on Rails) developer specializing in building full featured web applications. I have a strong passion for continuous learning and skill enhancement, always seeking to improve in order to deliver exceptional results. My focus is on finding a challenging project where I can contribute my expertise while expanding my knowledge and experience, driving both personal and professional growth.
    Featured Skill RSpec
    RESTful API
    TypeScript
    JavaScript
    CSS
    HTML
    React
    Ruby
    PostgreSQL
    Ruby on Rails
    Responsive Design
  • $30 hourly
    • 0.0/5
    • (2 jobs)
    With a profound knowledge and rich history of achievements as a Full Stack Developer, I stand out as an exceptional candidate for your project. Here are some points to consider: 1. Cutting-Edge Technical Expertise: Armed with an extensive technical arsenal, I'm adept in a broad spectrum of technologies including ECMA Script, React.js, Ruby on Rails, and a suite of other tools. My ability to seamlessly navigate both frontend and backend technologies ensures a holistic approach to project development. 2. Proven Problem Solver: Known for my strong analytical mind and a creative approach to problem-solving, I've successfully refactored complex codebases and implemented innovative solutions to optimize performance. This knack for problem-solving has been a driving force behind the success of my current projects. 3. Cross-Functional Collaboration: Collaborating seamlessly with cross-functional teams is my forte. I actively participate in code reviews and contribute to the design of business logic. This collaborative spirit not only enhances project outcomes but also fosters a dynamic and positive team environment. 4. Strategic Impact on Projects: My previous roles at Leansquad in Atlanta, Georgia, and Project F. in Sweden are marked by a strategic impact on projects. Whether it's designing and implementing complex backend APIs or spearheading the implementation of new marketplace functionalities, my contributions consistently elevate project success. 5. Educational Excellence and Strong Foundation: Rooted in a Master’s and Bachelor’s degree from the esteemed National University "Zaporizhzhia Polytechnic," my academic background perfectly complements my hands-on experience. Additionally, my specialized training in the design, production, and maintenance of electronic products adds a unique layer to my skill set. In essence, I am not just a Full Stack Developer. I am a solution architect, a collaborative team player, and a strategic thinker with a proven track record of delivering excellence. By bringing me on board, you're not just hiring a freelancer, you're securing the services of a seasoned professional committed to taking your project to new heights.
    Featured Skill RSpec
    Capistrano
    Next.js
    Redux
    React Native
    NGINX
    Shopify
    CSS 3
    HTML5
    jQuery
    React
    JavaScript
    PostgreSQL
    Ruby on Rails
    Ruby
  • $15 hourly
    • 0.0/5
    • (1 job)
    Back-end Developer Highly skilled and motivated Ruby on Rails Developer with experience in building scalable web applications. INTERESTS Passionate about staying up-to-date with the latest technologies and best practices in development. Interested in designing and building scalable, high-performance systems Eager to contribute to open-source projects and collaborate with the global developer community. Committed to writing clean code and following best practices such as TDD, SOLID and CI/CD. Interested in creating user-friendly applications that provide seamless experiences for end-users. Motivated by working in collaborative, cross-functional teams to deliver high-quality code on time Enthusiastic about automating workflows, optimizing development pipelines, and exploring DevOps
    Featured Skill RSpec
    Heroku
    Bootstrap
    JavaScript
    CircleCI
    Docker
    Cypress
    Cucumber
    GitHub
    Git
    PostgreSQL
    Ruby on Rails
    Web Development
    Software QA
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