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Hire the best Devise developers

Check out Devise developers with the skills you need for your next job.
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Clients rate Devise developers
Rating is 4.7 out of 5.
4.7/5
based on 4,636 client reviews
  • $30 hourly

    • 4.7/5
    • (31 jobs)
    I’m a software developer with 5+ years of experience working for several kinds of industries. I currently work with Ruby on Rails Stack and related technologies building business web applications or products.
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Front-End Development
    Ubuntu
    Heroku
    Docker Compose
    RESTful API
    Ruby
    JavaScript
    Ruby on Rails
    PostgreSQL
    Docker
    MongoDB
  • $75 hourly

    • 4.5/5
    • (29 jobs)
    I am a senior Ruby on Rails developer. I've been working with Rails for 12 years. I also bring several years experience building data warehouses and ETL processes so I also bring that data storage/processing/retrieval performance optimization perspective when building web applications. I'm comfortable working on the front end. I can work with traditional monolith Rails projects, or build UIs using React or Vue. I also have some devops skills and can get you set up with cloud hosting via Heroku, DigitialOcean or AWS (ECS, EC2 auto-scaling groups) and can get your application running on docker for easy developer on-boarding or deployment.
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Twitter/X Bootstrap
    Business Intelligence
    MySQL
    Vue.js
    Python
    Ruby
    CSS 3
    Ruby on Rails
    JavaScript
    React
  • $30 hourly

    • 4.9/5
    • (32 jobs)
    I am an Elixir/Golang/Python/Ruby programmer and Linux System Administrator. I had spent 22 years in the corporate world as a developer and linux administrator, working in the office. 8 years ago I jump to working remotely from home as a freelance developer. I have built apps for my customers ranging from locally in Nueva Esparta, and all over the world. I take pride in my work and the majority of my customers bring me repeat business and referrals. I feel I have been successful, not just because of my web programming skills, but because I am a reliable and dependable web programmer that can be trusted to follow through with my work. I enjoy working directly with my clients, rather than having project managers involved. Even though I seldom meet my clients in person (due to geography), I am able to effectively communicate via email and chat to complete the website development project to their specifications.
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Phoenix Web Framework
    Phoenix
    Linux System Administration
    RESTful API
    API Development
    JavaScript
    Docker
    PostgreSQL
    Python
    Web Application
    Django
    Ruby on Rails
    Elixir
    Ruby
    Golang
  • $15 hourly

    • 4.6/5
    • (5 jobs)
    I have all my experience with Ruby On Rails and have hands-on experience with rails enterprise-level web application, application design, database design, performance-oriented systems with the best of my skills. I have two years of experience in building rails applications and APIs engines with the most used and efficient gems which are commonly required in many applications. Thank you for your time and consideration. I look forward to speaking with you about this opportunity.
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Ruby on Rails Stack
    UX & UI
    Tailwind CSS
    HTML
    React
    MySQL
    Web Development
    PostgreSQL
    Bootstrap
    jQuery
    Ruby
    JavaScript
    CSS
    Ruby on Rails
  • $60 hourly

    • 4.7/5
    • (1 job)
    I focus on developing myself both professionally and personally, in order to acquire greater knowledge and experience in Software Development.
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Postman
    Front-End Development
    RESTful API
    PostgreSQL
    Ruby
    Ruby on Rails
    React
    Node.js
    JavaScript
  • $25 hourly

    • 5.0/5
    • (38 jobs)
    Hi, I’m Ali Haider, a Full-Stack Engineer with 9+ years of experience, specializing in secure, scalable, and high-performance web and mobile applications. I thrive on turning ideas into reality with clean, efficient, and future-proof code. What I Offer ✅ End-to-End Development – From concept to deployment, I handle everything. ✅ Performance & Security – Building fast, scalable, and secure applications. ✅ Seamless User Experience – Ensuring intuitive, responsive, and engaging designs. ✅ Cloud & DevOps – Reliable hosting, CI/CD pipelines, and scalable infrastructure. Tech Stack & Expertise 🔹 Backend: Ruby, JavaScript, Python | Ruby on Rails, Node.js, Django 🔹 Frontend: React.js, Vue.js, Next.js, Ionic | JavaScript, TypeScript, HTML5, CSS 🔹 Databases: PostgreSQL, MySQL, Firebase, MongoDB, Redis 🔹 Cloud & DevOps: AWS, Google Cloud, Heroku, Azure DevOps 🔹 Mobile & Extras: Flutter (iOS/Android), Chrome Extensions, Web Scraping Why Choose Me? 🚀 Business-Focused Approach – I build solutions that align with your goals and drive growth. 📢 Clear & Transparent Communication – No surprises—just efficient collaboration. ⏳ Timely & Reliable Delivery – I deliver high-quality work on schedule. Let’s bring your vision to life with cutting-edge technology, innovation, and expertise. Whether you're launching a startup, scaling a business, or need a technical upgrade, I’m here to help. 💬 Let’s connect and build something amazing together! 🚀
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Microservice
    Azure DevOps
    Vue.js
    Node.js
    Next.js
    Web3
    Firebase
    DevOps
    Elasticsearch
    GraphQL
    MongoDB
    Django
    Ruby on Rails
    React
    Python
  • $50 hourly

    • 5.0/5
    • (70 jobs)
    I solve your technical problems for money. 13 years in Software Development. Business-awareness and holistic approach. I will not suggest you a technology just because it's cool. I will work with you to figure out what's best for your wallet, your business and your customers. Get in touch and we can discuss your project!
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Web Application
    Ruby on Rails
    jQuery
    Database Architecture
    Software Architecture & Design
    React
    RESTful API
    PostgreSQL
    API
    Sass
    TypeScript
    Ruby
    Web Development
    JavaScript
    SQL
    API Integration
  • $30 hourly

    • 5.0/5
    • (11 jobs)
    I'm a full-stack web developer with 5+ years of experience in Ruby on Rails, React js, JAVA, and AWS. I'm a quick learner and an excellent team player. I dig deep into the project requirements and solve the problems using the best possible method. MAJOR SKILLS - Expert in Ruby on Rails. Have worked on Ruby version 2.x and 3.x and Rails version 3.x to 7.x. - Expert in using third-party APIs like Google Map API, Twilio Sms and voice API, Stripe, Zapier, Dwolla, Plaid, Proliant API, Rental United channel manager, CommBank API for payment in Australia, and many more. - Strong knowledge of E-commerce application and database design and Shopify. - Strong knowledge about popular gems such as Devise, authlogic, Carrierview, state machine, activemodelserializer, actioncable, capistrano, opentok, Active admin, etc. - Background jobs with resque, sidekiq, Redis, DelayedJob, ActiveJob. - Knowledge of database architecture in PostgreSQL, MySQL, MongoDB, etc - Knowledge of Elastic Search, Solr - Knowledge of js library and frameworks like React js, Redux, Vue js, React Native, jQuery, Webpack - Strong Knowledge of HTML, CSS, Bootstrap, Semantic UI, Tailwind CSS, High charts - Strong knowledge of GIT and version control. - Knowledge of mobile app development using Flutter - DevOps with Capistrano and Mina in multiple VPS like Digitalocean or Vultr. - Containerization with Docker. - Knowledge of AWS SDK and AWS services like EC2, Route 53, SES, S3, Lambda, RDS, etc - Familiar with Project Management tools like JIRA, ClickUp, Trello and development process Scrum, Kanban
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Vue.js
    Heroku
    Ruby on Rails
    jQuery
    Zapier
    Automation
    WordPress
    SQL
    React
    Java
    Flutter
    Ruby
  • $30 hourly

    • 4.6/5
    • (3 jobs)
    I am ruby on rails developer, and I have been building web applications using ruby on rails for more than 4 years. I have spent most of time building backend apis but I am also a capable full stack developer. I have worked on multiple large scale web applications with integrations to external services Some major ruby libraries I worked with are: - Devise - Sidekiq - Rspec - Faraday
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    API
    RESTful API
    Tailwind CSS
    GraphQL
    Python
    JavaScript
    Golang
    Ruby
    MongoDB
    React
    Ruby on Rails
    SQL
    PostgreSQL
  • $40 hourly

    • 5.0/5
    • (19 jobs)
    I am a full-stack developer with more than 5 years of web development experience. I have mostly worked with Ruby on Rails but am also good at JavaScript, Python and Golang. Apart from web development, I do Linux server administration, I develop mobile apps using Flutter and also program Arduino boards and PLCs.
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Python
    Flutter
    Arduino
    Linux System Administration
    Node.js
    Nuxt.js
    Ruby on Rails
    Vuetify
    Vue.js
    API Integration
    JavaScript
    ExpressJS
    Tailwind CSS
    API
  • $18 hourly

    • 4.9/5
    • (36 jobs)
    Experienced software developer for eCommerce applications and online marketplaces. My daily activities include managing Linux servers, scaling applications, and managing databases. improve performance and security. Setup and handling of mail servers to send mass email marketing to businesses. Languages and Frameworks: Ruby, Ruby on Rails (v2, 3, 4, 5, 6, 7), Spree Commerce, Sharetribe Go, API Development, React.js, NodeJS, JavaScript, Express and jQuery Databases: Oracle, PostgreSQL, MySQL, MongoDB, Cassandra, and Neo4j Apache Solr, Elasticsearch, Sphinx, Redis, Memcached, and RabbitMQ Database normalization and performance optimization APIs integration: Authorize.Net, Stripe, Braintree, Adyen, and many other payment gateway API Amazon Advertising / Marketplace API, Google API, Gmail API, Google Drive API, Adwords API, Facebook Ads API, Instagram API, Youtube API, Twitter API, Acuant API, USPS API, FedEx API, UPS API, etc. Bootstrap 3.x, 4.x, 5.x, ZURB Foundation, Materialize, HTML, CSS, sass/scss, slim, haml, ERB, asset pipeline, Kendo UI, Shield UI, Tailwind CSS, Ext JS Responsive Web Design, Mobile Design, and cross-browser testing, including iPhone and Android phone Data visualization using AmCharts, FusionCharts, HighCharts, plotly and chart.js Other experience: Express JS, Bash Script MicroServices AWS, EC2, S3, Linode, Digital Ocean, Linux, Ubuntu, Heroku, RedHat, Fedora, Docker, etc. Samba Server, FTP Server, Mail Server, Postfix, Dovecot, SMTP, IMAP, Proxy Server, VPN server, CPanel Automation tasks like publishing Facebook, Instagram and Google Ads, generating reports, backing up, etc. Write API for Android and iOS apps Web Scraping MQTT, Kafka Streaming Signifyd Fraud Detection API, Twilio API SSL certificate installation migrate PHP/Laravel application to Rails migrate django/flask application to Rails migrate node.js application to Rails NoSQL, SQL, RDBMS database Chat application, Video Streaming application, Real Estate Application, etc.
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Microservice
    Web Development
    Node.js
    NoSQL Database
    React
    Sharetribe
    API Development
    Spree
    Ecommerce Website Development
    Payment Gateway Integration
    MongoDB
    MySQL
    PostgreSQL
    Ruby on Rails
    Ruby
  • $35 hourly

    • 5.0/5
    • (19 jobs)
    Hi there! I'm a seasoned Ruby on Rails developer and DevOps expert with over a decade of experience building, scaling, and maintaining high-performance web applications. My passion lies in crafting clean, maintainable code and delivering robust, scalable solutions that exceed client expectations. Whether you're looking to develop a brand-new application, optimize your existing infrastructure, or transition to a DevOps-driven workflow, I’m here to help.
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Ruby on Rails Stack
    Database Design
    DevOps
    Amazon EC2
    Nuxt.js
    Vue.js
    Ruby
    Ruby on Rails
    Python
    Node.js
    Twilio API
    React
  • $42 hourly

    • 4.4/5
    • (63 jobs)
    ★★★★★ "Philipp is our most experienced developer and does a fantastic job in all matters. He acts with great responsibility, understands business requirements perfectly and is a valuable mentor within the team. We're looking forward to continuing to work with Philipp and truly appreciate him." - Julius from Privatize Hello, I am Phil. As your Python and Django Developer, I will add 15 years of professional experience in the Django and Linux ecosystem to your project, fast-pacing your development cycles from day one. I am capable to manage the whole tech stack of your architecture and adjoin your business decisions with my technical expertise. My competencies extend beyond Web Development to DevOps, ML/AI and Education. I am most productive and competent in the following technical and human areas: ★★★★★ WebDev ✔ Python (v3, v2) and Django Backend (v4) with Wagtail and Django CMS; ✔ Testing with pytest, unittest, selenium and code style adhere to black, PEP-8; ✔ Django Frontend Templates with Jinja2, HTMX, Vue.js or React; ✔ Python Ecosystem: Numpy, pyTorch, matplotlib, Flask, Beautiful Soup and others. ✔ Django Ecosystem: DRF, FastAPI, Wagtail, Allauth, Haystack, Celery and others. ✔ Client-side with Javascript, node, npm and package ecosystem; ✔ Node Ecosystem: jQuery, Vue.js, Babel; ✔ Independent problem solver with first principles approach; ✔ Team Player with a focus on supporting junior developers ★★★★★ DevOps ✔ IT Architect and Consultant turning your features into reality via CI/CD; ✔ Deployment Linux Server, Heroku, AWS, GCP and other platforms; ✔ Git, github-actions, docker, docker-compose, heroku-cli ✔ Postgres, PostGIS, MariaDB/MySQL, MongoDB, ArangoDB; ✔ Celery async compute and Redis caching; ★★★★★ ML/AI ✔ pyTorch Developer (torchvision, -audio, -text); ✔ OpenAI API integration, Llama3 and OpemAssistant builds ✔ GCP & AWS cloud compute integration; ✔ Statistical competence: PCA, Bayes, Markov, SVM ✔ Mojo Developer (Python superset for performant ML computing) ✔ C/C++ and Ruby competence ★★★★★ Educator ✔ Helping my students to master Python3; ✔ Training involves the complete development cycle ✔ Project based training covering aux. tools, like Git, bash, docker, etc.; ★★★★★ Personal Points: ✔ Available immediately; ✔ Multilingual communicator with precise terminology in English, Spanish, German; ✔ Presentation Skills & Inspirational Speaker; ✔ Fitness Enthusiast; 🔎 Explore my GitHub Account @rollinger to see some of my non-closed work and projects. For unparalleled development expertise, seamless project communication, and a proactive, efficient, and amicable approach that propels your project to success, let's connect. I'm eager to assist you in achieving your goals. Schedule an interview with me today, and let's kickstart your project.
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    RESTful API
    Linux System Administration
    WordPress
    Bootstrap
    Ruby
    Search Engine Optimization
    CSS 3
    Django
    JavaScript
    HTML5
    English
  • $25 hourly

    • 5.0/5
    • (5 jobs)
    Hi there, Are you looking for a skilled developer who can help you build robust, scalable, and efficient web applications? Look no further! With over 5 years of experience working on Ruby on Rails, I am confident in my ability to develop applications from scratch or maintain existing live applications dealing with massive traffic. My expertise extends beyond Ruby on Rails, as I am also proficient in Python, ReactJS, AngularJS, Ionic Framework, NodeJS, docker, Git CI/CD and React Native. My skill set includes working with Elastic-Search for query optimization, writing and maintaining good quality code with reusable modules, designing business requirements to modules ensuring performance/quality, solid understanding of DB management systems like PostgreSQL, MySQL, SQLite, and ability to write complex queries and import-export massive data in bulk operations at DB level. Additionally, I am proficient in jQuery/JavaScript and its compatibility with different operating systems, familiarity with stimulus/CoffeeScript, solid understanding of MVC and Restful frameworks for app developments, and familiarity with React Native/React and integrating it with Rails Application. My expertise also includes a solid understanding of Websockets, APIs, and web-services, identifying quick, reliable solutions to complex problems, recursive/recurring functions, and good communication skills. I am open to discussions and creative ideas towards a complex problem and can provide flexible solutions to a complex task. Whether you need to build an application from scratch, fix bugs/errors in an existing application, improve code quality, optimize query performance at both SQL level or using Elastic Search, design and develop reusable, flexible modules, or build a flexible step-by-step solution to complex tasks/problems, I can help. Let's work together to build applications that meet your business needs and exceed your expectations. Contact me today to get started!
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Salesforce App Development
    Heroku
    API
    Database
    API Development
    RESTful API
    Git
    Ruby
    PostgreSQL
    Amazon Web Services
    AngularJS
    GraphQL
    JavaScript
    Node.js
    React
  • $25 hourly

    • 4.9/5
    • (8 jobs)
    I’m a developer with experience in building websites for small and medium sized businesses. Whether you’re trying to win work, list your services or even create a whole online store – I can help! I’m experienced in HTML and CSS 3, Ruby, jQuery, WordpPess, Flutter, Linux, ... Regular communication is really important to me, so let’s keep in touch!”
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Mobile App Development
    Heroku
    Linux
    Flutter
    HTML5
    CSS
    Git
    JavaScript
    MySQL
    SQL
    Dart
    Ruby
    API Integration
    Ruby on Rails
    Web Development
  • $50 hourly

    • 4.9/5
    • (3 jobs)
    🎯 Ali Umair: Your Go-To Web and Mobile Application Development Professional 🎯 👋 Greetings! I'm Ali Umair, your partner in creating robust and reliable web 🌐 and mobile app 📱 solutions. With over 5+ years in full-stack development and team leadership, I bring proven expertise in delivering scalable business solutions. My focus is on building long-term relationships with clients through transparent communication and exceptional results. 💻 Ruby on Rails Expertise: - Full-stack Rails application development with modern practices - Advanced performance optimization and security implementation - Test Driven Development (TDD) with RSpec and Cucumber - Real-time features using Action Cable and Websockets - Complex API integrations and microservices architecture - Cloud deployment (AWS, Heroku, Digital Ocean) 📱 Mobile & Frontend Development: - Cross-platform mobile applications using Flutter - React.js applications and Chrome extensions - Real-time data processing and visualization - Payment gateway and wallet integrations - Progressive Web Applications (PWA) 🔮 Technical Stack: - Backend: Ruby on Rails, Node.js - Frontend: React.js, Stimulus.js, Tailwind CSS - Databases: PostgreSQL, Redis, MongoDB - APIs: RESTful, GraphQL - DevOps: Docker, Kubernetes, CI/CD 🚀 Recent Achievements: - Led development of AI-powered sales platform - Optimized database performance reducing response time by 40% - Implemented secure payment systems processing millions in transactions - Built scalable microservices handling 100k+ daily users 🛠️ Project Management & Collaboration: - Agile methodologies (Scrum, Kanban) - Version control (Git, GitHub) - Project management tools (Jira, Trello) - Team communication (Slack, Discord) 🤝 Professional Approach: - Clear communication and regular updates - Quality-focused development - Scalable and maintainable solutions - Security-first mindset - On-time delivery Let's create something extraordinary together! I'm available to discuss your project needs and provide tailored solutions for your business. Best Regards, Ali Umair
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    React
    GitHub
    RSpec
    Heroku
    SaaS Development
    API
    Elasticsearch
    Amazon Web Services
    Redis
    Ruby
    Ruby on Rails
    Object-Oriented Programming
    Web Design
    JavaScript
  • $125 hourly

    • 5.0/5
    • (111 jobs)
    I am a full-stack web developer with a special interest in Ruby on Rails. Test-driven development is at the core of all advanced web applications that I create in order to allow scalability. I'm also experienced in JavaScript and its frameworks, including Angular, and React. I started out my journey by pursuing a degree in Computer Security and Forensics. Throughout my first year of that, I developed a passion for code. I was introduced to markup and the basics at a young age but during my first year of college is when I really started to code with more advanced programming languages. In a college environment, it's not easy focusing solely on programming due to the many unrelated subjects required for obtaining a degree. After realizing what I really wanted to focus on was web development, I decided to switch gears. One year into that degree, I took an alternate route and attended Bloc where I was able to dive deep into web development as a whole and really understand each and every concept. Not only did I learn the prevalent technologies and languages at a high level, but I also acquired the skills to continue learning on my own. I'm hardworking, self-driven, and I develop end-products that my clients are beyond happy with.
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Google Ads
    Recharge
    Shopify Plus
    Shopify
    Ecommerce Website Development
    Shopify Apps
    Ruby
    Ruby on Rails
    CSS
    JavaScript
    Vue.js
    HTML
    Bootstrap
    jQuery
  • $25 hourly

    • 5.0/5
    • (2 jobs)
    Hello there! Before talking about qualifications and professional abilities, I would like to introduce myself. I am Awais Sajid and I am from Pakistan. Taking web development as a profession not only fulfills my pocket but also my heart because it has been my passion since my early teenage. I believe that people should do things in which they are good at or in which their heart lays. That’s why I chose freelance web development as my career because I believe I’m good at this and mas I am always honest and I am never afraid of doing hard work. I have finished my graduation from The University of Lahore on Computer Science Engineering and I have taken many lessons on modern web designing from famous institutions. My education background allowed me to thrive in this career and my training on this have made me a master of this section. Using Ruby on Rails, i am very much expert in building server-side and back-end components for Mobile & Web projects. And i also have expertise in creating and managing C.M.S platforms. I also familiar with static site development. I have developed various websites to optimize their search engines and to create easier user interfaces. During the COVID-19, I have designed many websites that helps its users to know about how they should protect themselves from virus and how to to buy their COVID testing kits online. I have also experiences in building enterprise level applications i also developed many P.O.S Web applications having different types of gateways which uses different types of transactions. I also have expertise in building API only application using Ruby on Rails. From server side? Yes! i also have experience on server side application deployments on staging and production environments . This is just one of my success stories as a freelance web developer. I am sure that if you hire me, I will present you many successful projects with minimal efforts from your side. Thank you for spending your precious time while reading my profile.
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Git
    Amazon EC2
    MySQL
    jQuery
    Ruby on Rails
    Ruby
    Heroku
    RSpec
    PostgreSQL
    HTML5
    CSS
  • $40 hourly

    • 5.0/5
    • (22 jobs)
    I am a seasoned professional software developer with multiple years of experience and a wide range of expertise. For the past several years I have been working as a full stack rails developer on projects with varied scopes. I also hold a first class bachelor's degree in computer science and can develop any sort of web/mobile apps from scratch, as well as maintain enterprise level applications. Skills:- - Ruby on Rails - React/Redux/AngularJS - SQL, PostgreSQL - Stimulus - Hotwire, Turbo - Firebase - Integration of all levels of APIs - RSpec, Capybara, Jasmine, Chai.JS, Sinon.JS - Redis - Action Cable and Web Sockets - JavaScript, jQuery, jQuery UI, CoffeeScript - HTML5, HAML, Slim - CSS, SCSS - GCP, AWS, Heroku - Puma, NGINX, Capistrano - Elastic Search, Algolia - GIT
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Test-Driven Development
    Automated Testing
    Agile Software Development
    React
    Ruby
    Ruby on Rails
    Docker
    SQL
    Amazon Web Services
  • $29 hourly

    • 4.9/5
    • (25 jobs)
    Looking for Ruby, Rails, Angular, React and similar jobs. Started a big project in Ruby on Rails and jQuery in 2009 and since then I have been part of many projects, some from scratch and joined many existing. I am 9th ranked on Upwork Rails 2.3 test. I respect my clients and I stand on my commitments. I do not need micro-management and I deliver clean, tested code. I like to help people, stay updated on new tech, work on products that add value to people and play table tennis. My Tools of expertise include Front-end - JS Frameworks: Angular, React, Vue - Mobile: Ionic 1 and 2, React Native - Open Source: Developed a custom appointment calendar plugin Back-end - Ruby: 1.8.7 to 3 - Rails: 2.3 to 6 - Databases: MongoDB, PostgreSQL, MySQL and Sqlite - Testing: TestUnit, RSpec, capybara, poltergeist, cucumber, guard and TimeCop - Background Job: Sidekiq, Resque and Delayed Job - Searching: Sphinx and ElasticSearch API Inegrations - Payment Solutions: Spreedly, Adyen, Stripe, Pay_Pal and eWay - AWS: IAM, RDS, DynamoDB, EC2 and S3 - Google: Maps, Contacts and Calendar - Social Media: Twitter and Facebook - EMail: Mailchimp, Mailgun, Sendgrid - Project Management: pivotal tracker, jira, trello - Video Stream Processing: encoding.com - SMS: Twillio, Tropo and clickatel Management - Tools: Pivotal Tracker, Jira, Trello, Redmine and Basecamp - OS: Ubuntu, CentOS and Windows - Mockups: Balsamiq, Cacoo and Azure These tools are just to show my experience, but I am open to any new technology/tool and super exited to help you make your business ideas come true. So go ahead, and ping me for your next venture.
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Payment Gateway
    API Integration
    Google Chrome Extension
    Docker
    Vue.js
    AngularJS
    React
    Ruby
    JavaScript
    Ruby on Rails
  • $20 hourly

    • 4.6/5
    • (41 jobs)
    🟡 Available Now 💙 100% Client Satisfaction 🥇 Top Rated WordPress Developer ✅ 39+ Successful Projects ✅ AI-Powered Full-Stack Developer ✅ Ruby on Rails & Shopify Specialist ✅ ASP.NET, Angular js & React.js Specialist ✅ Full-Stack Developer & AI Enthusiast Hello! I'm a seasoned web developer with 4+ years of experience in building dynamic, scalable, and user-centric, AI-powered web applications. My expertise lies in full-stack development, with a focus on Ruby on Rails and React.js, ASP.NET, and Angular.js, and I’m deeply invested in incorporating AI-driven solutions to revolutionize user experiences and streamline operations. 💻🌟 🔍 Key Expertise: ✅ Languages: Ruby, JavaScript, Python, C# ✅ Frameworks: Ruby on Rails, React.js, Angularjs, Shopify, ASP.NET ✅ Databases: PostgreSQL, MySQL, Redis, CosmosDB, SQLite ✅ APIs & Integrations: AWS, Stripe, SendGrid, Mailchimp, Customer.io, Keepa, TransUnion ✅ Cloud & DevOps: AWS, Heroku, DigitalOcean, Azure, GCP ✅ AI & Automation: OpenAI Chat GPt, Machine Learning, Natural Language Processing (NLP), Computer Vision, Chatbots, Predictive Analytics, AI-Enhanced User Interfaces, Deep Learning, AI-Powered Recommendations, Data Mining, and Automated Decision-Making, Data Analysis ✅ SEO, Off page, On page, Website optimization, Page optimization ✅ Problem-solving, Quick fixes I pride myself on delivering top-tier solutions on time and within budget. My strong communication skills and collaborative nature make me a valuable asset to any project. Whether you're aiming to modernize your platform or innovate with AI-powered applications, I'm here to help turn your vision into reality. Let’s create something exceptional together! 🚀
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Ruby on Rails Stack
    Front-End Development
    Back-End Development
    MySQL
    API
    Ruby on Rails
    Web Design
    Full-Stack Development
    React
    Ruby
    Web Development
    Stripe
    Shopify
    JavaScript
  • $75 hourly

    • 5.0/5
    • (34 jobs)
    6 years of Ruby on Rails fullstack (front-end, back-end and deployment) experience. 6 years deploying on the cloud (AWS, Azure, Digital Ocean, Heroku) 2 years Rust experience. Certified Kubernetes Administrator (CKA) Hashicorp Certified - Terraform Associate 003 I'm 100% committed to achieve success in your web applications with the results to prove it. Previous project work includes: ● Setting up 1-to-1 voice conferences using Twilio API ● Custom 2 factor authentication implementation ● Uploading and storing data on S3 and B2 buckets ● Automated web crawling to monitor new legislation ● Custom cron jobs on Linux servers for backup and maintenance tasks ● Solving "impossible" problems with custom Ruby gem and Rails patches ● Mass marketing sms campaigns using Twilio API ● Complex custom subscription implementation with Stripe API Technology I work with: ● Ruby on Rails (RoR). Rails 4, 5, 6, 7. ● Hotwire/Turbo ● RSpec/Capybara/Selenium for unit testing and feature testing ● PostgresDB, Mysql ● Heroku, Digital Ocean, AWS EC2 servers ● Heroku staging apps for continuous integration (CI/CD) ● Twilio API, Stripe API ● Google/Facebook/LinkedIn OAuth ● Capistrano, Docker+Kubernetes for deployment ● Wordpress, Shopify ● HTM5L/CSS3 ● JavaScript/AJAX/JQuery/JSON ● ReactJs/Nodejs/Typescript ● Web Scraping ● Linux BASH scripting ● Git, GitHub, Bitbucket, ● Webhooks ● Performance enhancement via algorithm and query optimization I understand the importance of test driven development to ensure a product that is understandable and maintainable for future developers to work on. More time put in up front means far less costs down the road. Fluent in English. Born and raised in the USA.
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    AWS Development
    API
    Query Optimization
    DevOps
    Git
    Data Scraping
    PostgreSQL
    Web Development
    Rust
    JavaScript
    React
    Docker
    Kubernetes
    Ruby
    Ruby on Rails
  • $20 hourly

    • 5.0/5
    • (13 jobs)
    I am a highly experienced Full Stack Developer with proven track record in building web and mobile applications. I am driven on my own and deliver tasks without supervision. I am eager to be challenged in order to grow and further improve my skills in a professional competitive environment.
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    DataTables
    Streamlit
    Database Management System
    Ruby on Rails
    PostgreSQL
    Flask
    JavaScript
    Ruby
    React
    HTML
    CSS 3
  • $60 hourly

    • 5.0/5
    • (12 jobs)
    With over 15 years of experience in web development, I specialize in Ruby and Ruby on Rails, proficiently handling the full spectrum of related technologies while boasting a strong background in front-end development. My career has encompassed diverse roles, including senior developer, tech lead, team lead, and software architect, allowing me to excel both independently and in collaborative settings. Throughout my journey, I've crafted a wide array of digital solutions, spanning from conventional websites to intricate marketplaces, dynamic social networks, and complex CRM systems. My expertise extends to crafting command-line applications, background services, and web crawlers, among other innovative projects. Furthermore, my team and I have achieved remarkable success in developing hybrid and native mobile applications using Ionic, Angular, and React Native, consistently earning near-perfect ratings in app stores. In addition to my development prowess, I take ownership of DevOps responsibilities, managing infrastructure, overseeing deployments, fortifying security measures, implementing robust backup strategies, and ensuring the overall reliability of systems. I'm well-versed in infrastructure management tools like Chef. Over the years, I've built and nurtured a team of highly skilled and talented engineers. Together, we tackle a wide array of projects on a global scale, delivering exceptional results and value to our clients.
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    Apache Solr
    NoSQL Database
    Mobile App Development
    API
    Twitter/X Bootstrap
    Linux System Administration
    jQuery
    AngularJS
    Ruby on Rails
    Web Development
    React
    Ruby
    JavaScript
    SQL
  • $25 hourly

    • 5.0/5
    • (7 jobs)
    Hi, I'm a Results-oriented Ruby on Rails and MERN developer with 5+ years of experience. I'm a strategic thinker who drives execution and am highly knowledgeable in a wide variety of professional disciplines that maximize the growth of the organization from product/project development using Ruby On Rails, MERN, and React to customer/end-user engagement. My profile and projects show my experience and my experience helps me immensely in web development because I know exactly what my customers are looking for. In my work, I follow a very simple yet effective code of conduct. I always listen to my clients before making decisions and value their time by being upfront about my skills and competencies. I am also fluent in English and open to both written and verbal communication. I keep code well structured, pixel perfect design and keep the client information about any scaling issues that may occur in the future. This means that at the end of the day my projects will be optimized for speed efficiency and security. SKILLS ⭐⭐⭐⭐⭐ I've worked with Ruby On Rails, Node.JS for backend development 5+ years of experience I've worked with React Native, React Js, Redux, Javascript, Jquery, CoffeeScript, Stimulus js, HTML5, CSS, Bootstrap, tailwind CSS for Frontend development I've worked with PostgreSQL, Mysql, MongoDB for the database caching and Queuing I've worked with Memcache, Redis, Sidekiq for the background jobs I've deployed applications on Linode server, Digital Ocean, Elastic Beanstalk, Heroku, Google Cloud servers, EC2. I've Integrated lots of 3rd party APIs like Google Map, Bitgo, Skyscanner, Google Finance, Linked in, Docusign, Youtube, Facebook, Twitter, and many more. I've deep knowledge to work with the latest technologies. I have integrated different payment gateways such as Stripe and 2checkout, Braintree, Authorized.net, GooglePay, Apple Pay, and many others. My aim is to help individuals, entrepreneurs, and companies to increase their internet presence by providing Simple and Efficient Solutions, Passionate Support, Precision Quality, and to build long-term trustful Business Relationships. I'M LOOKING FORWARD TO WORKING WITH YOU ON AMAZING PROJECTS!
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    MERN Stack
    Bubble.io
    Sequelize
    PostgreSQL
    Next.js
    Tailwind CSS
    Ruby on Rails
    Ruby
    TypeScript
    MongoDB
    MySQL
    Node.js
    React
    JavaScript
    WordPress
  • $120 hourly

    • 5.0/5
    • (21 jobs)
    I've been making software on the web (mobile, too!) since age 10, first teaching myself Javascript, Visual Basic, PHP, & Objective-C... actively learning how to create things in harmony with technology. I wanted to bring the imagination into the physical world. So now, I build the stuff dreams :). I was a part of a team of hackers in the 90’s building out the next AOL Instant Messenger, developed/designed a massive $500+ million fintech live trading web app, architected a successful $100+ million real estate CRM platform for a startup, built live streaming services with drone integrations for the Pentagon, and have collaborated with some of the best minds in tech over the past decade. I'm a polyglot programmer, fluent in almost every programming language. I really enjoy every aspect of engineering systems. I've seen & worked with almost every environment you can think of, and written in pretty much everything except C/C#/C++. I began programming & selling websites as a teenager before a lot of modern day programming languages even existed. When I'm not spending time with software, you can find me oil painting in techniques developed by Italian Renaissance Masters, making digital crypto-artwork, and sharing some of my life and work through weekly newsletters & videos: an online series focused primarily on wellness, artwork, & business- highlighting what it's like to be a business owner, artist, developer, and wellness activist in today's digital world, while building community at it's core. Have a peek at Cur1yJ.com for more about me! --- Languages: Ruby, PHP, Swift, Objective-C, Java, Kotlin, Python, Node, Javascript, Suitescript, SASS, HAML, CoffeeScript, Slim, TypeScript, GraphQL Frameworks: Rails, PhoneGap/Cordova, RubyMotion, Drupal, Wordpress, Shopify, Spree, Sinatra, CodeIgniter, React Native, SwiftUI, Ember, Flutter, Vanilla JS Testing: Test Driven Development, Unit testing, Behavior Driven Development Frontend: HTML/HTML5, CSS/CSS3, JSON, AJAX, Bootstrap, XHTML, XML Lib JS: EmberJS, AngularJS, NodeJS, jQuery, BackboneJS, ReactJS, VueJS, Three.js DB: MySQL, PostgreSQL, MongoDB, SQLite Server: Apache, Amazon Web Services, Digital Ocean, GoDaddy, Rackspace, Heroku, GCloud, NetSuite Cloud ERP System OS: Mac OS X, Ubuntu, Linux, Windows Tools: Git, Docker, Kubernetes, Jenkins, Stackdriver, Raygun, Stripe, Paypal, Braintree, Firebase, Trello, Jira, Shortcut, Pivotal Tracker, Notion, SSO Web service: Live Streaming, Wowza, RSS Practices: SCRUM, SEO, UX Design, SaaS, Custom Theming, Responsive Web Design, Query Analysis, DB Modeling, DevOps, Custom/iOS/Android Dev, Rails Gem Dev, Open Broadcast Software, Streaming, API Development, Agile Methodologies, Continuous & Custom Deployment, Scripting, Analytics, Big Data, Server Configuration, REST Web Services, Debugging, Performance & Memory, App Security, Scaling, Mentoring, Communication, Planning, Consulting
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    UX & UI
    CI/CD
    MVC Framework
    API
    Software Architecture & Design
    Software Testing
    Database Development
    jQuery
    Mobile App Development
    Ruby
    Swift
    PHP
    Kotlin
    JavaScript
  • $50 hourly

    • 4.9/5
    • (17 jobs)
    Hello everyone! I am a Senior developer specializing in ruby. I am a talented and reliable contractor with more than 12 years of working experience. I was taking part in development of various of projects - from simple cleaning service website to high loaded big data traffic exchange system. If you need quick help and count upon a high quality result, then I am the person you are looking for.
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    Sphinx
    JavaScript
    Ruby on Rails
    jQuery
    Redis
    Ruby
    MongoDB
    HTML5
    PostgreSQL
    Backbone.js
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