Ruby Ukraine Freelancers

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  1. Dmitry Z.

    Dmitry Z.

    DevOps, Expert Linux Administrator

    Serbia - Last active: 1 day ago - Tests: 8 - Portfolio: 4

    I am a DevOps who has strong skills and pragmatic experience. Also I had extensive IT background as an expert Linux sysadmin for over 12 years. My knowledge of programming languages and systems administration allows me to integrate and automate much of my work. My GitHub account: https://github.com/freeminder Linux distros: RHEL, CentOS, Ubuntu, Debian Virtualization hypervizors and containers: KVM, VMware ESXi, oVirt, OpenVZ, LXC, Docker, DEIS, Kubernetes Cloud platforms and API: AWS, DigitalOcean, Softlayer, Rackspace, Linode Monitoring: Zabbix, Nagios/Icinga, Munin, Cacti, Monit Load balancers: HAProxy, Nginx Web servers: Apache, Nginx App servers: Phusion Passenger DB: MySQL, Percona XtraDB Cluster, PostgreSQL, Redis, MongoDB Mail servers: Postfix, Exim, Sendmail, Dovecot, Courier Control panels: cPanel/WHM, Parallels Plesk/Power Panel Configuration management and deployment: Chef, Capistrano Continuous Integration: Jenkins SCM: Git Scripting: Bash, Ruby, Python Frameworks: Ruby on Rails BDD: RSpec, Capybara

    $44.44 /hr
    917 hours
    5.00
  2. Maksym S.

    Maksym S.

    Senior iOS and Ruby on Rails developer, 4+ years of experience

    Ukraine - Last active: 15 days ago - Tests: 8 - Portfolio: 10

    Over the last 4 years I was building iOS apps with Ruby on Rails backend on daily basis, 10 years total in programming on different languages: Swift, Objective C, C, Ruby, Python, bash, Pascal, Delphi, Assembly (Assembler, ASM), Processing. Also I build Mac OS utility apps time to time. I really like my job and iOS with Ruby on Rails makes development process very fast and enjoyable. Here is the list of major technologies I use (I like to learn new technologies too): - social SDKs: Facebook, Twitter, Google Plus, LinkedIn, Vk, Upwork, Elance; - cloud storages: iCloud, Amazon Web Services, Parse; - push notifications: Urban Airship, Parse, Infobip, custom web services; - analytics: Flurry, Adjust, Google Analytics, Crashlyticts, Urban Airship, Parse; - payments: Paypal, Balanced payments, Braintree, Stripe, LiqPay; - SMS and voice: Twilio, Nexmo; - maps: Google, Apple, Yandex, Open Street Map; - databases and RDBMS: - on iOS: SQLite + CoreData, Realm; - on Ruby on Rails: PostgreSQL, MySQL, SQLite; - custom UI controls: custom transitions, animations, customization of default UI controls; - gesture recognition, detection of hand-written letters, numbers; - web: HTTP requests, development and usage of RESTful JSON and XML APIs; - HTML template engines: ERB, Slim, HAML; - stylesheets: CSS, SASS, SCSS; - JavaScript libraries: jQuery; - RESTful JSON API: Jbuilder, RABL, MultiJson, YAJL, Oj; - deployment of Ruby on Rails projects: VPS, Heroku; - programming design patterns: MVC, Active Record (Core Data), Singleton, Decorator (Category, Delegation), Adapter (Protocols), Observer (Notifications and Key-Value Observing), Memento (saving and restoring state of object), Facade; - version control: git, SVN (I prefer git); - programming principles: REST, DRY, KISS. Please, check my portfolio here: http://skliarov.com/portfolio to see my latest published projects. Thanks for reading this! Best regards, Maksym.

    Groups: Application Developers Alliance

    $40.00 /hr
    725 hours
    5.00
  3. Sergiy Z.

    Sergiy Z. Agency Contractor

    direct work: Perl MySQL Ruby jQuery LAMP Software developer

    Ukraine - Last active: 1 day ago - Tests: 5 - Portfolio: 2

    Hi, I am software developer with 15 years of development experience. I prefer using opensource tools and libraries. Ruby, Perl, Java, Java Script, Action Script, C/C++ are languages of my projects, MySQL, Postgres, Sqlite, MongoDB, BerkeleyDB are databases for them. Frameworks which help me create perfect applications are Mojolicious, CGI::Application,Ruby On Rails and for sure JQuery. I like different projects and my expertise cover wide area of IT technologies. Projects where I can apply not only my experience but also my mind are my favorites.

    Groups: Bluehost Developers and Designers

    Associated with: UAcoders Pro

    $40.00 /hr
    8,846 hours
    5.00
  4. Artem D.

    Artem D. Agency Contractor

    Our sites are highly rated on awwwards.com

    Ukraine - Last active: 11 hours ago - Tests: 6 - Portfolio: 9

    Hi there! My team and I have a huge experience in web development. In our past we made strong cooperation with great designers and agencies who are always happy with our work! Our latest projects are highly rated on awwwards.com So if you have really great designs, I'm the person you need. FRONTEND Frameworks: Backbone / Marionette / React. Tasks runners : Google Starter Kit / Yeoman / Grunt / Gulp. Preprocessors: SASS / LESS / Coffee. Loaders: Browserify / RequireJS. Framework: Google Closure / Polymer / Bootstrap. Components: Polymer / Web Components / React Components. Package Manager: Bower. Methodology: BEM / SMACSS. __ BACKEND Framework: Ruby on Rails, RoR. Databases: MySQL, MongoDB, PostgreSQL. API: Google, Youtube, Facebook, Twitter, Instagram, Vimeo, Parse. SVN: Bitbucket, Github. Web Services: Google Cloud, AWS, Digital Ocean, Heroku, Rackspace.

    Associated with: ABC Solutions

    $40.00 /hr
    1,356 hours
    5.00
  5. Oleksandr Sorokin

    Oleksandr Sorokin Agency Contractor

    python django developer

    Ukraine - Last active: 1 month ago - Tests: 5 - Portfolio: 3

    I am engaged in web development for more than 4 years. My primary specialization is python and django. I have participated in a number of successful django/python projects, some of them were builded from scratch. Have a great deal of experience of working with outsourcing companies. Practice "code convention", such as PEP-8, pyLint, jsLint, valid cross-browser markup in every project. Enjoy looking for optimal and nice solutions for complicated issues. Easily can do backend and frontend work. Favorite technologies: * python/django * javascript/jquery * sass/compass * bootstrap * Postgres/PostGIS

    Associated with: t-solver

    $35.00 /hr
    1,819 hours
    4.88
  6. Pavel K.

    Pavel K. Agency Contractor

    Senior Rails / Ruby developer

    Ukraine - Last active: 2 days ago - Tests: 4

    4+ years experience using TDD with Ruby (Rails & Sinatra) My career in IT sector started from an Internet start-up (a new technology in Internet advertising). Having started as a Junior programmer I've quickly grown to highly qualified Senior developer. I also developed myself as a Team Leader and later as a Project Manager. I have widely distributed with highly rated professional skills in variety of informational technologies and other areas. - Experienced at developing and managing a highly loaded systems; - Gained few years experience in developing mobile WAP and HTML5 games; - Experienced at developing a booking ticket system (airplane/boat/bus/train). - Developed a wide range of websites using HMTL5, CSS3, Ruby, Ruby on Rails, Sinatra, AngularJS, MySQL, SQLite, PostgreSQL, MongoDB, Sphinx, Redis, nginx, phonegap, php, etc. I have the great interest of creating architecture and bussiness solutions for big projects. My colleagues see me as highly motivated and oriented on a the best result. I'm looking for some interesting projects for long term cooperation.

    Groups: Application Developers Alliance

    Associated with: Synnergia Solutions Agency

    $49.50 /hr
    759 hours
    5.00
  7. Eugene Naydenov

    Eugene Naydenov Agency Contractor

    Expert in Python, JavaScript, SPA, PHP, HTML5, CSS3, Node.js

    Ukraine - Last active: 7 days ago - Tests: 10 - Portfolio: 4

    Expert programmer, Scrum master, team leader. Looking for long term project on position of Senior/Lead software engineer. Preferred technologies: Python and JavaScript. I have over 5 years of experience in Python, Ruby, PHP, JavaScript, C/C++, C# and .NET (Windows Forms, WPF, WCF, ASP .NET), Java development. I also have a wide experience in the following areas: AJAX, SPA, SQL, OOP and OOD. I have skills of working with NoSQL and SQL-based databases such as MongoDB, Redis, MySQL, MS SQL Server, Oracle, FireBird, PostgreSQL, etc. Have good experience of writing the Node.js applications. Proficient in working with cloud solutions such as AWS. Past 3 years I've been working primary in a web-development area on position of lead software engineer with responsibilities of * Project and team management * Web application development * Testing of web application and its components * Reliability, security and performance of the server and the application You can find my CV in this document: https://docs.google.com/document/d/1lYhvx_Ugo1YPPquT8gTHqDx0ebxYZYOZ-GEQX8Nyepw/edit?usp=sharing

    Associated with: Concept Apps, TopBrains, StartupLabs

    $45.00 /hr
    6,683 hours
    4.98
  8. Vitaliy Zhukov

    Vitaliy Zhukov Agency Contractor

    Professional .NET developer ASP.NET, MVC, Azure, SQL, JavaScript

    Russia - Last active: 11 hours ago - Tests: 17 - Portfolio: 10

    Vitaliy is one of the most talented developers we have. His expertise are .NET related technologies and JavaScript but this doesn't mean that he is not able to be the best in other areas. He likes to improve his own skills working on different projects and learn something new.It doesn't matter if it's a new technology or an API, you can be sure that he adapts to any new stuff very quickly and deliver his tasks in time. He is also a perfect team player, maybe because he likes team sports :)

    Associated with: Intspirit

    $35.00 /hr
    6,440 hours
    4.96
  9. Roman P.

    Roman P. Agency Contractor

    ♦♦♦ SN. RUBY DEVELOPER ♦♦♦ (Scripting, Web Development, Tesing)

    Germany - Last active: 1 day ago - Tests: 5 - Portfolio: 13

    • Over 11+ years of experience in Software Development, including: - 5+ years of experience with Ruby/Rails - 6+ years of experience as an Automation Test Engineer - 3+ years of experience as an Oracle Developer, Oracle DBA • Strong knowledge of the whole software development process, methodologies (RUP, Agile) and platforms • A quick learner, communicative and very well motivated. Extremely interested in constant learning and improving my skills

    Associated with: StrongQA, Ltd.

    $60.00 /hr
    4,305 hours
    4.91
  10. Yuriy O.

    Yuriy O. Agency Contractor

    Senior Ruby on Rails Developer / backbone.js / Project Manager

    Ukraine - Last active: 2 days ago - Tests: 10 - Portfolio: 12

    I can offer 10 years of experience as web developer and consultant with wide range of skills - from Rails / JavaScript programming and server administration to project management and UI design. In my work I strive for high quality, simplicity and maintainability. I do my best to deliver more than you expect.

    Groups: Engine Yard Ruby on Rails Professionals Network, Twilio

    Associated with: Kodo Labs Agency

    $50.00 /hr
    3,160 hours
    4.76