Ruby Ukraine Freelancers

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Serhiy Pokrovskyy

Serhiy Pokrovskyy Agency Contractor

Expert in Ruby on Rails, C#, .NET, PostgreSQL, MySQL - 8 years exp.

Ukraine - Tests: 2 - Portfolio: 22

Started as a freelancer programmer, I've quickly grown to highly qualified and valued developer at ELEKS Software where I co-worked with world-famous companies and enterprise products such as SAP, Microsoft Dynamics and other, was a team leader and later a project manager of a growing real-estate management project. I have widely distributed and highly rated professional skills in variety of Informational technologies and other areas. In 2010 I've founded an Internet start-up - a new technology in Internet advertising. Now after my company is growing fine, I'm looking for some interesting work to do to feed my hungry developer's brain. In 2012 I've founded an outsourcing company, Synnergia Solutions, and working now on growing my development resources with highly qualified developers to tightly co-work on lots of interesting projects.

Groups: Application Developers Alliance, Crossrider...

$150.00 /hr
4,163 hours

Roman P.

Roman P. Agency Contractor

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

Germany - 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

$60.00 /hr
4,755 hours

Iurii B.

Iurii B. Agency Contractor

Frontend Engineer

Ukraine - Tests: 14 - Portfolio: 12

Hey, there! __ ABOUT ME - I’ve worked more than 2000 hours on Upwork and 95% of my clients gave me 5 star rating, 100% of my clients gave me positive feedback. - All my latest projects are highly rated on such sitest like and - I won developer award on on a project and got a positive feedback from the developer jury. - My team and I did responsive frontend development for the official Adidas UAE e-commerce store - I started to work as a frontend developer in 2010. For these years I had such roles like frontend developer, team lead and project manager. So I can easily architect the structure of your project, split it to the tasks and make exact timeline. - I'm always open for a well-designed projects to make them with the highest quality using all my experience to make you happy and get new awards! __ FRONTEND Frameworks: Backbone / Marionette / Fluxxor / Reflux / Flux + React. Tasks runners: Google Starter Kit / Yeoman / Grunt / Gulp / Webpack. Preprocessors: SASS / LESS / Stylus / Coffee. Loaders: Browserify / RequireJS. HTML & SASS Frameworks: Susy / Bourbon / Neat / Compass / Bootstrap. Components: Polymer / Web Components / React / Bower. Package Manager: Bower. Methodology: BEM / SMACSS. Testing: Chai / Jasmine. __ BACKEND Framework: Ruby on Rails, RoR. Databases: MySQL, MongoDB, PostgreSQL. API: Google, Youtube, Facebook, Twitter, Instagram, Vimeo, Parse. Web Services: Google Cloud, AWS, Digital Ocean, Heroku, Rackspace. __ TOOLS OS: Macbook Pro OS X, iPhone 6 iOS. SVN: Bitbucket, Github. Project Management: JIRA / Trello / Slack. __ CONTACT ME I am open to interesting and fun consulting gigs, short-term contracts, workshops and any exciting projects working with nice people.

Groups: BigCommerce, Corona Labs...

$45.00 /hr
2,322 hours

Pavel K.

Pavel K. Agency Contractor

Senior Rails / Ruby developer

Ukraine - Tests: 4

5+ 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 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

$49.50 /hr
878 hours

Oleksandr Sorokin

Oleksandr Sorokin Agency Contractor

python django developer

Ukraine - 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

$35.00 /hr
1,822 hours

Vitaliy Zhukov

Vitaliy Zhukov Agency Contractor

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

Russia - 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 :)

$35.00 /hr
7,335 hours

Fedor P.

Fedor P. Agency Contractor

DevOps Engineer/ System Architect / Senior System Administrator

Ukraine - Tests: 8

Hello I'm highly experienced, certified engineer ( RHEL cert, Novel cert, MCSA, LPI 3, OpenText ) DevOps engineer with more than 10 years of experience in wide range of projects. Chief of system administrator team in software development company. Freelancer with more then 4 years in oDesk and "five star" rating. Full range of sysadmin support, system architect, security audit, PCI compliance, consulting, automation, DevOps best practices. If you have any project required professional system administration or DevOPS - I could be the one who you are looking for :)

Groups: Microsoft Certified Professionals

$40.00 /hr
6,980 hours

Vedran J.

Vedran J. Agency Contractor

Linux Administrator, AWS, Nginx, Ubuntu, CentOS, EC2, Plesk, HAProxy

Croatia - Tests: 9 - Portfolio: 2

9+ years of experience in: ** LAMP/LEMP(Nginx) administration and server hardening (Ubuntu, Debian, Centos,RHEL,HAProxy, Ruby/Thin deployment DevOps, Python/Django deployment DevOps,Nagios, fail2ban..) ** Amazon web services - AWS (EC2, VPC, RDS, S3, Route53, Cloudfront, Elastic Load Balancer, AutoScaleing, etc..) ** Nginx rewrites ** Google pagespeed ** Linux troubleshooting ** VPS providers: Linode, Rackspace, Amazon(AWS), MediaTemple, HostGator, Cloudflare, MaxCDN, CloudFront, NameCheap, GoDaddy, DigitalOcean, EC2, Bluehost ** Parallels Plesk ** Odoo/OpenERP installation ** VPS administration ** AWS EC2 administration ** VMware vSphere ** NewRelic ** fail2ban ** openswan ** HAProxy ** keepalived, vrrp ** elasticsearch ** Nagios monitoring ** Elastic Load Balancer ** LINUX deployment and migration ** Rackspace Cloud Services ** Ruby on Rails app deployment ** Python - Djengo app deployment ** CPANEL, PLESK, WEBMIN, SHELL/SSH administration ** proftpd, pure-ftpd, pure ftp ** DNS, BIND, PowerDNS ** SSL certificates ** Site migration ** Network troubleshooting ** CSF firewall ** VPN ** Cisco, Mikrotik, Juniper Networks, Extreme Networks.. ** Linux PENTAHO deployment ** Squid, AiCache, AiScaler EXPERIENCE: Knowledge in Linux networking and service management, such as APACHE server, Nginx, LAMP, LEMP, LNMP, MYSQL, POSTGRESQL, tcpdump, haproxy, WIRESHARK, tshark, URL rewrite. Eight years of first hand experience in network and linux administration, support and Core Network design in Telecom environment. Excellent knowledge of various tasks such as: routing, BGP, VPN, Layer 3 networking(Routing), Layer 2 networking (LAN switching), VLAN, OSPF, RIP, network and packet troubleshooting. Working experience with various network equipment such as: Cisco, Juniper Networks, Extreme Networks, HP networking, MikroTik RouterOS, Ericsson OSS, Redback Networks and so on.. Experience with various providers such as: -AMAZON WEB SERVICES (AWS, EC2..) -RACKSPACE -HOSTGATOR -GoDaddy -MediaTemple -Cloudflare -NameCheap -LINODE -QuickWeb -HAProxy -etc.. -WHMCS RESELLER setup and migration on project or permanent basis. Including DNS, EMAIL, WORDPRESS migration -CPANEL, PLESK, WEBMIN, H-sphere, SHELL administration -SSL certificates

Groups: LoginRadius

$49.50 /hr
3,667 hours

Michael P.

Michael P. Agency Contractor

Lead Web Developer

Ukraine - Tests: 3 - Portfolio: 4

I'm experienced (10+ years) web developer. I love coding with: * PHP (Symfony 2, Zend Framework 2, Drupal, Joomla) * Javascript (jQuery, Backbone, Underscore, Require JS) * Ruby (Rails 4) * Nodejs (Express 3) * Python (Django, Bottle) using: * relational DBMS (MySQL, PgSQL, SQLight) * non-relational DBMS (MongoDB, GAE Datastore)

$44.44 /hr
2,093 hours

Denys N.

Denys N. Agency Contractor

Mobile Apps Developer ( iPad | iPhone | Android | Windows Phone )

Ukraine - Tests: 2 - Portfolio: 11

Over 20 mobile apps with more than 500,000 downloads on mobiles in total. Creating mobile apps from the ground up I am always focused on the quality of the result product and stunning user experience. Ready to get one? Feel free to contact me Keywords: iOS, iPhone, iPad, Android, tablet, Jelly Beam, Windows Phone, Objective-C, java, c#, .net, Json, xml, REST

$60.00 /hr
261 hours