Hire the best Devise developers

Check out Devise developers with the skills you need for your next job.
Clients rate Devise developers
Rating is 4.7 out of 5.
4.7/5
based on 4,636 client reviews
  • $50 hourly
    Over 20 years of IT experience: development, implementation, and maintenance of Server and Client-side Web applications using Ruby and Python in UNIX environments. The primary programming language for today is Ruby. But besides that in the past, I was using Python. Sometimes do small projects or fixes with other languages like Swift, C++, Java, etc. Certainly frequently I use javascript cause I have to deal with frontend. Working as a freelancer since 2005 (part or full time), mostly I work on support of web projects (bug fixes, updates, various improvements, and new features implementation), so dealing with legacy code and code written by other developers is one of my strong points. Solving complicated issues with large applications is also what I often do for my clients. Besides that, I like developing projects from scratch and I have a good experience in *nix servers administration and scaling, so I usually take care of all related processes such as provisioning of the server environment and delivering an application to end-users. During the last 2 years, I was involved in cryptocurrency projects, so I’m quite familiar with their technologies and the last project I was working on is a cryptocurrency arbitrage monitor, it still in progress. Occasionally I like to try something new and I build various desktop applications as a hobby. I'm familiar with a lot of different programming languages and it's quite easy for me to start a new project with a new language.
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Continuous Integration
    Integration Testing
    RSpec
    Automated Testing
    Unix System Administration
    Unit Testing
    Ruby on Rails
    Ruby
    Ansible
    SQL
  • $35 hourly
    Hello, I'm Ratnakar, a committed and independent full-time Ruby on Rails Developer on Upwork (Top Rated Plus). I am currently seeking long-term collaborations with clients. My experience includes working full-time with multiple global companies through Upwork from 2014. As a dedicated and Senior Ruby on Rails developer, my expertise encompasses a broad range of web development areas. This includes proficiency in front-end JavaScript and back-end Ruby, along with the development of comprehensive web platforms and APIs for mobile applications & front end applications, all utilizing the latest technologies. With more than 8 years in software development, I have successfully delivered a wide range of projects across various industries, consistently achieving client satisfaction and project objectives. Here are some key strengths that characterize my work: ✦ Ruby on Rails: MVC architecture, RESTful APIs, ActiveRecord, testing frameworks (RSpec) ✦ Database: PostgreSQL, MySQL, MongoDB ✦ Javascript, Jquery, AngularJS, React ✦ Hotwire Turbo, Stimulus ✦ Deployment: Heroku, AWS, Digital Ocean ✦ Elastic Search ✦ Sidekiq, Redis ✦ Third-party and RestFul API integration ✦ HTML, CSS ✦ Github, Bitbucket ✦ Jira, Trello, Pivotal ✦ Shopify Apps, Liquid Templates ✦ Sharetribe Marketplace Please feel free to reach out to me, and I would be delighted to discuss your requirements in detail.
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Heroku
    Sharetribe
    Elasticsearch
    GitHub
    Database Architecture
    Twilio API
    Redis
    Web Application
    JavaScript
    API Integration
    MySQL
    PostgreSQL
    React
    Ruby on Rails
    Ruby
  • $50 hourly
    FullStack Software Engineer with comprehensive knowledge in Web development and experience in building projects from scratch to success. Have strong expertise in Rails with 7+ years of active commercial practice. Skilled in maintaining applications with wide microservice infrastructure and making architecture solutions for small and big projects. Worked in TDD and BDD methodologies. Respectfully tested and well-documented code. Good communication skills and a capable team player.
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Docker
    PostgreSQL
    Amazon EC2
    CI/CD
    MongoDB
    AngularJS
    Kubernetes
    Ruby
    API
    Ruby on Rails
  • $120 hourly
    "An excellent experience. Sam quickly picks up on both the technical requirements of a job and also immediately contributes to the overall strategic analysis and goals. So valuable." - Tim, Cazenovia Software "Sam very quickly understood the context of my project, which has multiple moving parts/technologies/languages. He was able to advise on a clear way forward in a way that addressed my concerns and goals. Thanks Sam!" - Daniel, SimpleDiagrams "Sam was a very good communicator, he understood my requirements without too much direction and went above and beyond what was required of him to deliver a job very well done!" - Brad, Insure and Away I am a professional Ruby on Rails developer with over 15 years experience developing web applications on a variety of technologies and platforms. I have a strong focus on best practices, and test driven development (both front and back end). I prefer to get things done right the first time so you don't have to keep coming back to them. I enjoy working on challenging projects, and have experience in the following areas: - Testing (RSpec, Capybara, Cucumber, MiniTest, Teaspoon/Mocha) - Guard - ActiveRecord (prefer working with Arel, but I also have a lot of experience with SQL) - Devise, CanCan, Pundit - RailsAdmin, ActiveAdmin - Front end (many years experience working with JavaScript) - Heroku - DevOps (Vagrant, Puppet) - Linux - Deployment (Capistrano) Due to the many years experience I have with a large number of different technologies however, I can very quickly pick up new technologies. I would love to help you build a state of the art web application just as much as I would enjoy working on existing or legacy projects (developing new features, updating technologies, or bringing best practices and testing in to unstable or poorly structured code). English is my first language, and you can expect my communication to be prompt, polite and friendly. I will however not hesitate to speak out if I feel something is being done incorrectly, or can be improved upon. So if you have a project where you feel I can help out, please don't hesitate to get in touch!
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    RSpec
    Test-Driven Development
    Ruby on Rails
    JavaScript
    Ruby
  • $175 hourly
    As a seasoned full-stack software engineer, I excel in understanding business needs, devising creative solutions to cutting-edge challenges, and applying lean-thinking principles in my work. My experience spans developing web and mobile applications, collaborating closely with diverse stakeholders, and thriving in early-stage startups and R&D "skunkworks" projects. With a solid software engineering background, my passion lies in embracing AI-human collaboration – where creativity, empathy, and intuition are valued just as much as technology. Leveraging my expertise in AI integration, full-stack development, product development, agile methodologies, and project management, I aim to be a valuable asset to forward-thinking companies looking to harness the power of AI in their products and internal workflows. Together, we can unlock the immense potential of humans and machines working harmoniously, driving innovation and success. If you envision a more interconnected, empathetic future where technology supplements (not supplants) the Human Experience, let's connect! I'm eager to discuss how I can contribute my skills, experience, and enthusiasm to the growth of your organization.
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Web Development Consultation
    Innovation Strategy
    AI Model Integration
    Information Technology Strategy
    GPT-4
    Artificial Intelligence
    Business Strategy
    Full-Stack Development
    ChatGPT
    Lean Development
    Artificial Intelligence Ethics
    Business Consulting
    Agile Software Development
    Mobile App Development Consultation
  • $30 hourly
    Welcome to my profile - I'm a Senior Ruby on Rails developer with a Master Degree in Computer Science. I have 10+ years of experience with Ruby on Rails development. My technologies include Ruby on Rails, ReactJs, MongoDB,, rspec, Cloud Servers(AWS, GCP, Azure, Heroku, Rackspace), Git, Ionic framework + a few others. So far I've successfully developed 50+ complex applications, from scratch. Beside other international clients, I worked for MNC in India, 500 funded startups and app which is used by product companies like facebook, google etc. I am based in Delhi, India but comfortable in working in any timezone. Why you should work with me? * Experience in build application from idea to MVP to scalable product * I always stick to deadlines * Good communication skills * I'm almost always available for clients via Skype * I care about code quality and my clients satisfaction * Quick learner So if you have an idea, I do have the best solution for you, choosing the best from pool of technologies, with in less time and money. I completely follow, Agile development methodologies and have experience with scrum and various tools like pivotal, slack, basecamp, kanbanpad etc. I do have experience in developing mobile application for more information refer my mobile development profile. Apart from above i also maintain 100% job success rate on upwork.
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Cloud Computing
    React Native
    Agile Project Management
    Project Management
    Internet of Things Solutions Design
    API Development
    Ruby
    MySQL
    React
    JavaScript
    AngularJS
    Ruby on Rails
    React Bootstrap
  • $25 hourly
    I am a Ruby on Rails developer and computer science graduate; I always pay much attention to detail and have perseverance in getting the job done well. I'm aware of modern web-based technologies and I always appreciate the opportunity to learn new things in my work. Skills I feel confident with: * Backend - Ruby, Ruby On Rails 4/5/6; * Automated application testing with Rspec; * Frontend - JavaScript, jQuery, AJAX, HTML5, Bootstrap 3/4, CSS3, Sass/Scss, Less; * SQL: MySQL, PostgreSQL, MongoDB; * Pug, Webpack; * Mapbox API, Facebook API, Google API, other API; * Photoshop, Zeplin, Figma, Inkscape; * Heroku, Amazon. I'm taking care of my clients and you'll definitely benefit from my soft skills and attention to detail.
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    PostgreSQL Programming
    MySQL Programming
    API
    jQuery
    Sass
    HTML5
    JavaScript
    Ruby on Rails
    Ruby
    CSS 3
  • $25 hourly
    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
  • $100 hourly
    I'm Fullstack Software developer with 8 years of working experience. I have helped various big and small startups to take their brilliant idea into well tested and easily maintainable software. - I am passioned to write maintainable code using common design patterns. - I have worked with many languages and frameworks, currently excited with Ruby on Rails and React.js - I have written big applications with millions of users so I have good experience with cashing, common security holes and dealing with big data.
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Test-Driven Development
    Ruby on Rails
    GraphQL
    Elixir
    Ruby
    JavaScript
    React Native
    React
    Node.js
  • $25 hourly
    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!
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    MERN Stack
    PostgreSQL
    Next.js
    Bubble.io
    Sequelize
    Tailwind CSS
    Ruby on Rails
    Ruby
    TypeScript
    MongoDB
    MySQL
    Node.js
    React
    JavaScript
    WordPress
  • $70 hourly
    Hello and welcome to "my world". ✅ About 11 years experience in web/mobile development ✅ Polite and responsible performer I am experienced developer with strong skills in building high load applications, REST APIs, SaaS applications, multi-tenant applications, background processing, deployment. I have about 11 years of wide-ranging experience in design and programming of web applications(also mobile and desktop apps), using different platforms, frameworks, technologies and storages. Using some tools for testing code and analyze it, such as RSpec, Rubocop, Reek. I'm good like both solo developer or a team player. I've created some projects from scratch, also have experience with supporting existing code base. Used different social API, using GIT. Prefer to communicate via email or Skype.
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Elm
    RSpec
    Elasticsearch
    SQL
    Ruby on Rails
    React
    Ruby
    HTML5
    JavaScript
    React Native
  • $100 hourly
    Software Engineer | Full Stack Web Developer | Application Consultant I am a Senior Full-stack Web Developer, with over a decade of experience working with cutting-edge languages and programming techniques. I enjoy taking on challenging projects which require the use of the most advanced languages and development techniques. I am adept at innovative problem solving and developing high-quality code. I excel at web application development, including coordinating ground-up planning, programming, and implementation of the core modules. I am self-disciplined and able to work independently or as part of a cross-functional team. As an Upwork Freelancer, I have worked on a variety of projects for a wide range of clients, assisting them with their business needs by creating innovative and cutting-edge web applications. These include: • Developing several applications using Ruby on Rails and other software development tools • Collaborating with several organizations’ in-house software teams to create online applications and tools • Providing consulting services in addition to development services, assisting businesses to optimize the software applications and their online presence • Working on other Key Projects including AWS services, Heroku, Database (PostgreSQL) optimization, and Facebook API integration My Skills & Competencies Are: Ruby on Rails • PHP • GoLang • Project management • MySQL • PostgreSQL MongoDB • Docker • API Development • HTML • CSS • SDLC • Java Script jQuery • Agile Development • AWS • Payment Gateway Integration • Perl I have the following certifications CIW Web Development • CIW Web Design Specialist • CIW JavaScript Specialist CIW Database Design • CIW Perl Specialist • CIW Web Foundations CompTIA A+ • CompTIA Security+ • CompTIA Project+ • CompTIA Network+
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Ruby
    Web Development
    HTML
    PostgreSQL
    API Development
    Payment Gateway Integration
    Systems Development Life Cycle
    JavaScript
    Agile Software Development
    Ruby on Rails
    CSS
    Heroku
    Relational Database
    Amazon Web Services
  • $80 hourly
    Hello, I am an experienced software developer with 10+ years of experience. Today I am focused on building web applications based on the Ruby-On-Rails / Ember.js frameworks. I am able to develop a backend solution while coordinating with another frontend developer or working on the whole app by myself. I have a flexible mind and proactive attitude: I am not only following for tasks step-by-step instructions but can understand problem statements and objectives, and find ways to solve for them. I have great attention to detail and strong work ethics: I respect deadlines, show up on time, and most of all I want to do a great job that can lead to a longer collaboration. Also, I am really good with frontend development, Linux, databases, Test Driven Development, infrastructure, DevOps, performance auditing, coding standards, version control, and much more. Looking forward to working with you!
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Front-End Development
    PostgreSQL Programming
    MySQL Programming
    API Development
    Vue.js
    Ruby on Rails
    Ruby
    JavaScript
    Ember.js
    HTML
  • $50 hourly
    I am a Ruby/RoR developer with about 10 years of experience. I'm an easy learning and passionate to bring your brilliant ideas into life. I am hard working and self-motivated person and have tremendous eagerness to learn new things! As a fast learner and good communicator I can join a team easily and provide you with interesting ideas. My skill set as follows: - Ruby, Ruby on Rails - MySQL/PostgreSQL/MongoDB/Redis - Background jobs/Resque/Sidekiq - BDD/TDD/Rspec/Cucumber - HTML/CSS/Haml/SCSS - JavaScript/CoffeeScript/jQuery/AJAX - Bootstrap, React - 3rd API Integration/oAuth (facebook, twitter etc.) - Restful, CRUD, DRY - Advanced Git/BitBucket user. Contact me and I will make your project work exactly the same as you wish!
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Ruby
    Bootstrap
    CSS
    Ember.js
    CoffeeScript
    MongoDB
    JavaScript
    HTML
    PostgreSQL
    Ruby on Rails
  • $75 hourly
    I am a senior Ruby on Rails developer. I've been working with Rails for 8 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
  • $50 hourly
    Verified by Upwork 100% job success rate over 5 years of programming experience. I build complex websites and applications, mainly with Ruby on Rails. Got an idea for a new application? Does your business need a specific tool that you can't find anywhere? Then, let's build it together. Skills: • Ruby / Ruby on Rails • SQL • API Integrations (SOAP, REST, GRAPHQL) • Custom API Development • RSpec • HTML • CSS, TailwindCSS/UI • JavaScript, React, Vuejs, StimulusJS • Linux Web Servers • Git • Electron • Python And many more. Please feel free to send me a message, and let's start building something together. -Luis.
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Stripe
    App Development
    Website Prototyping
    Business with 1-9 Employees
    Amazon EC2
    Ruby on Rails
    Web Application
    Ruby
    CSS
    PostgreSQL
    Web Development
  • $20 hourly
    I am Binh , I come from Viet Nam. Currently , I am web developer with Ruby on Rails , Html, css, Javascript. I always try to find many projects to improve yourself. If you need a web developer , contact with me .I hope I and you can have good project.
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    RSpec
    Database Design
    Database
    Web Development
    Ruby
    PHP
    Nuxt.js
    Ruby on Rails
    Vue.js
    jQuery
    Golang
    CSS 3
    Node.js
    React
    HTML5
  • $40 hourly
    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
  • $65 hourly
    I am top rated Elixir/Ruby/Vue developer with over 10k hours logged at Upwork. Working as part of a team or independently, I enjoy building anything from quick prototypes to large, sustainable systems. I have a strong interest in thinking about a product, understanding the problem it is trying to solve, and using right tools to solve it.
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Web Services Development
    Tailwind CSS
    API Development
    Ruby on Rails
    Vue.js
    JavaScript
    Git
    Ruby
    Elixir
  • $50 hourly
    I hold a strong background in Full Stack Development, specializing in Ruby on Rails, with over seven years of experience working in diverse business domains. My expertise spans JavaScript, TypeScript, React, API development and integration, geospatial queries with MongoDB, Test-Driven Development (TDD) using RSpec, and A/B testing for user experience optimization. Throughout my career, I have developed and maintained high-quality applications for companies such as VMware, Verafi, La Haus, and Grupo Creativo Habla. My experience with Software Development Life Cycle (SDLC) and Agile Methodology, enables me to deliver "High-Tech" solutions that cater to end-users and result in low maintenance costs. I am highly adaptable to the demands of various projects and the shifting of priorities. I thrive in unfamiliar situations and am always eager to learn and gain exposure to new ideas and experiences. My flexibility and willingness to learn ensure that I can effectively accomplish my client's goals. Thank you for your time, and I eagerly anticipate the opportunity to contribute to your team's success.
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Ruby on Rails
    Heroku
    Ruby
    JavaScript
    CSS
    CSS 3
    HTML5
    HTML
    API
  • $15 hourly
    Hi there! I am a Strong Junior Ruby on Rails developer with certain experience and the following skills: - Ruby on Rails - OOP - Devise, Active Admin - HTML, CSS, Bootstrap. Javascript - Haml, Scss - Rspec, FactoryBot, Selenium-Webdriver - Database: PostgreSQL, MongoDB I am open to learn new things as well and get more experience. I will be glad to get more details about your project and discuss our possible cooperation. I am ready to do a test task so you are welcome to contact me!
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    RSpec
    Ruby on Rails
    PostgreSQL Programming
    Bootstrap
    JavaScript
    HTML
    Ruby
    HAML
    CSS
    MongoDB
  • $24 hourly
    Top Full Stack Developers on Upwork Top Mobile App Developers on Upwork Top SaaS App Developer on Upwork Full-Stack Developer ⭐ 10+ Years Experience ⭐ 4850+ Upwork Hours I am a full-stack web developer and mobile developer with over 10+ years of experience in Node.js, React.js, VueJs, PHP, Laravel, Flutter, Android and iOS Application Development. 𝐒𝐨𝐦𝐞 𝐨𝐟 𝐭𝐡𝐞 𝐢𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 𝐈 𝐡𝐚𝐯𝐞 𝐰𝐨𝐫𝐤𝐞𝐝 𝐢𝐧 ----------------------------------------------------- ✅ Dating Application ✅ Communication Application ✅ Traveling Application ✅ Jewellery Application ✅ Fitness Application, Mental Health Application ✅ E-Commerce Application ✅ Real Estate Application ✅ Food delivery Application / Restaurant Application ✅ Education Application ✅ Trading Application /Fintech Application 𝐖𝐞𝐛 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 ----------------------------------------------------- ✅ JavaScript, React.js, Angular.js, Node.js, Vue.js, Socket.IO, Redux, Redis, Firebase, Firestore, MongoDB, PostgreSQL, MySQL, PHP, HTML5, CSS3, jQuery, MEAN Stack, MERN Stack. ✅ Amazon Web Services (AWS), REST APIs ✅ Twilio, Trello, Jira, Git, Github, BitBucket, Scrum, Agile 𝐌𝐨𝐛𝐢𝐥𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 ----------------------------------------------------- ✅ Flutter Application, iOS Application, Android Application, Hybrid Application ✅ Version control tools: Git, GitHub, Bitbucket ✅ Google Maps API, Facebook API, Payment API ⭐️⭐️⭐️⭐️⭐️ 𝐅𝐞𝐚𝐭𝐮𝐫𝐞𝐝 𝐑𝐞𝐯𝐢𝐞𝐰 ----------------------------------------------------- "He's driven, efficient, follows instructions well, very sharp, experienced and fast. He's exactly what we were looking for." - Darrell, Canada I assure you of high-quality work with timely delivery and standard services in a professional yet friendly manner. If you like my profile, then DM or connect/invite me. Let's connect, Rahul
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Full-Stack Development
    Back-End Development
    SaaS
    Ecommerce
    API Development
    React
    Flutter
    MongoDB
    Android
    Laravel
    Python
    Vue.js
    AngularJS
    Node.js
  • $30 hourly
    Hi I am a Full-Stack Rails developer I have 3 years of experience in this field in which I work in different stacks like Rails 5 6, React, Node Js Graphql, Heroku, AWS, 3rd party API integration, Jquery, different payment methods, Aside from that I am a good team player I can collaborate with different people and able to make usefull impact.
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    RSpec
    Payment Gateway Integration
    RESTful API
    CSS 3
    Ruby
    API
    PostgreSQL
    HTML5
    GraphQL
    HTTP
    Git
    Node.js
    React
    Ruby on Rails
    JavaScript
  • $25 hourly
    Hello! I bring 8 years of experience as a Full-Stack web app Developer. My expertise includes working with technologies such as Ruby on Rails, React, VueJs, Angular, Tailwind CSS and AWS. ★★ TECHNICAL SKILLS: ✅ Ruby, Ruby on Rails (RoR) ✅ HTML5, CSS3, CoffeeScript, SCSS, ✅ JS frameworks (React.js, AngularJS, Vue.js, NextJs), ✅ Databases (MySQL, PostgreSQL, Mongo, SQLite3), ✅ Search engines (Solr, Thinking Sphinx, Elastic Search), ✅ Payment Gateway (Stripe, Amazon, Apple Pay) ✅ BigBlueButton, GreenLight ✅ SEO, Social media integration, Web Scrapping, ✅ REST/SOAP API, Web Services, ✅ Amazon AWS, Azure, Digital Ocean, Heroku, ✅ Web servers(Apache+Ngnix, Passenger, Unicorn), ✅ TDD, BDD, Rspec and many others. As a web application developer, I have completed a wide range of projects - from small and simple to large and complex - with a focus on delivering innovative, effective solutions that meet or exceed client expectations. I specialize in transforming your ideas into high-tech products, aligning with your business model to drive substantial traffic and success. Here's what I bring to your project: 🌟 Comprehensive Implementation: I can execute all aspects of your project, covering both back-end and front-end requirements. 🌟 Aesthetic and Responsive Design: Crafting web designs that are not only visually appealing but also responsive for a seamless user experience. 🌟 API Development and Integration: Expertise in developing and seamlessly integrating APIs to enhance your project's functionality. 🌟 Custom Payment Gateways: Proficient in creating custom payment gateways and integrating popular processors like Paypal, Stripe, Square, and more. 🌟 Project Completion and Upgrades: Whether it's completing an unfinished project, upgrading an existing one, or implementing changes and new features, I've got you covered. Ready to collaborate with a developer who delivers results? Let's connect and create software that goes beyond code – it's about crafting an immersive experience that resonates with your audience. Initiate the conversation, and let's bring your vision to life!
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Stripe
    MySQL
    CSS 3
    Ruby on Rails
    Python
    AngularJS
    NGINX
    React
    JavaScript
    Ruby
    CSS
    jQuery
  • $35 hourly
    I have nearly a decade of professional experience building web applications using Ruby on Rails for small to large companies. Invite me to apply for your project now, and let's have a chat! My stack of technologies: Ruby | Ruby on Rails | Sidekiq | ReactJs | Javascript | Tailwind CSS | Bootstrap | PostgreSQL | MySQL Also have experience in testing average performance of available face recognition libraries.
    vsuc_fltilesrefresh_TrophyIcon Devise Developers
    Docker
    Ruby
    Kubernetes
    Ruby on Rails
    PostgreSQL
    RESTful API
    React
    Node.js
    MongoDB
    RSpec
    MySQL
    Software Development
    Tailwind CSS
    Capistrano
    Next.js
  • $95 hourly
    With over 20 years of experience as a competitive programmer, algorithm designer, tech lead, and CTO, I stand out as a top-tier software engineer on Upwork. My background not only spans various technical domains but also includes impressive achievements in competitive math and computing, highlighting my analytical and problem-solving skills. Additionally, I have extensive experience in startups, recruiting, training, marketing, and SEO, and I screen for projects where I know I can make the highest impact on a company. Key achievements: ✔ Pivotal Role in 10x Company Growth: In my role as CTO at Five Digit Media Inc., I engineered a groundbreaking algorithm that dramatically expanded the company's audience, profit, and revenue, achieving an impressive tenfold growth during an 8-week period. ✔ Top 10 in Canada in Computer Programming and Math Competitions: This experience honed my analytical thinking and complex problem-solving abilities, and underscores my proficiency in efficient and innovative algorithm design, which is crucial in software development. It also laid a solid foundation for my deep understanding of data science and machine learning concepts. Technical Experience Overview: ✔ CTO, Tech lead (17 years) ✔ Javascript (23 years) ✔ Python (6 years) ✔ MySQL (23 years) ✔ PostgreSQL (12 years) ✔ Ruby on Rails (12 years) ✔ React (6 years) ✔ C# / F# / .NET Core (6 years) ✔ PHP, CSS, HTML (23 years) ✔ Linux administration (23 years) ✔ Deep Learning / Machine Learning / Data Science (4 years) In the near future, my focus is on leveraging my extensive programming experience to build efficient and robust software systems and continue improving my skills. I have a keen interest in machine learning and AI, and excel in tackling challenging projects that push the boundaries of technology. With my background in hiring and managing top talent, I understand what it takes to be an exceptional tech professional from both the developer's and employer's perspectives.
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    Linux System Administration
    Machine Learning
    Deep Learning
    Data Science
    Ruby
    Ruby on Rails
    MySQL
    PostgreSQL
    Node.js
    React
    JavaScript
    Flask
    Django
    Python
  • $25 hourly
    We are a software engineering professional bridging the gap between the business and technology stakeholders on technology projects. We enjoy building startups with a passion. We are having 10+ years of experience in mobile application and web development.
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    Ruby on Rails
    Mixpanel
    iOS Development
    Ruby
    iOS
    Firebase
    MySQL
    In-App Purchases
    In-App Advertising
    Google Analytics
    Firebase Cloud Firestore
    Java
    Kotlin
    PHP
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