Ruby Ukraine Freelancers

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Yaroslav M.

Yaroslav M.

Senior Java Developer With Big Data Experience, Python Developer

Ukraine - Tests: 5 - Portfolio: 3

Summary: ----------------- • 5 years of software development experience • 4 years of Java development experience • 3 years in BigData/DataScience stack • Strong Java background • English (Upper-intermediate) • Fun-loving and sociable Technologies used by me for the last 6 months: - Java - Hadoop MapReduce - Java - Spark - Java - Spring-Batch - Java - Spring-Hadoop - Java - Spring-REST - Java - Spring-DATA - Java - JavaEE - Validators - Java - JavaEE - JPA - Java - JavaEE - Security - Java - JavaEE - Rest - Java - Spring-Hateoas (new generation of rest services) - Python Framework - PANDAS (Data Science research/testing theories ) - Python Framework - PyBrain (Neuron networks) - Ruby - Chef - Docker Please look at my history at Upwork (paid projects) and my CV for more details about projects in that i used the above technologies. Last time i get orders in real-time solutions with high amount accepted data every day. Overview: ---------------- I have been working as Java/Python developer for 5 years. To be a developer, it is my dream from childhood. When i played in computer games, i dream to have skills to write bot programs. Hence i graduated master degree in Software Engineering. I worked as Software Developer at Ukrainian mobile operator on high load web service, July 2011 - May 2012. Since June 2012, I work at EPAM Systems as Software Engineer on project goal is migration part of data analysis workflow from traditional relational database to Hadoop framework. Customer face constant significant increasing of data amount to analyse and traditional relational databases as DB2 may stop meet all needs (price, speed, maintenance ease). Software being developed is designed to provide all needed data warehousing, analysis and ETL functionality on base of Big Data framework Hadoop including Hadoop Core, Hadoop File System, Hive, writing Restful services, clients for services and others. Please take a look at my work history for comments from other clients. Thank you in advance for your time and consideration. I look forward to working with you soon. I have a Master degree in Software Engineering, faculty of Cybernetics, from Taras Shevchenko National University of Kyiv, in the Ukraine. Listed below are my experience and skills. Python (I like use for data mining and bot programs :) Django, Crawler, Scrapy, Grab I prefer tasks in algorithms and artificial intelligence, that contains hard logic. Hobby: Ethnical hacking and CTF competitions :)

$33.33 /hr
177 hours

Oleksandr Sorokin

Oleksandr Sorokin Agency Contractor

python django developer

Ukraine - Tests: 5 - Portfolio: 3

I am engaged in web development for more than 5 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/angularjs * sass/compass * bootstrap * Postgres/PostGIS

$35.00 /hr
1,822 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

Serge Tyatin

Serge Tyatin Agency Contractor

RubyOnRails Full-stack web developer

Ukraine - Tests: 2 - Portfolio: 6

I am full-stack web developer with 12 years experience. Initially spend with PHP in numerous projects like billing system, SEO optimized websites, file search engine, website crawlers. More recently I have been working with Ruby On Rails projects like distributed comment system, Spree commerce extensions and customization, custom CMS, mobile HTML games. I am mostly backend developer, have hiloads expertise, but also do frontend jobs, familiar with modern javascript/CSS frameworks. Have some experience with development for Android, chrome extension. Strong unix skills. I am customer focused, I am successful when I bring success to mine customers.

$35.00 /hr
67 hours

Alexander S.

Alexander S. Agency Contractor

Team leader, full-stack Ruby/Ruby on Rails developer

Ukraine - Tests: 7 - Portfolio: 9

Focused on ruby and ruby-based frameworks such as Ruby on Rails, Sinatra. Have experience in building regular websites and complicated CRM systems as well as command line ruby applications, background services, web-crawlers, etc. Me at elance: https://www.elance.com/s/aheaven/

$40.00 /hr
9,991 hours

Alexey K. Agency Contractor

Full Stack Developer.

Russia - Tests: 8 - Portfolio: 1

Professional web developer. I program ExtJS and other Ajax - based web applications. Has experience in creating complete systems, has enough knowledge on client side, server side, database. Can set up the development process, continuos integration so the project is automatically checked and deployed after every change, comprehensive test suits. With 5 years experience in C#, MSSql Server and some dynamic languages like ruby and php I can realize how to create a project as much working and maintainable as possible

$70.00 /hr
9,663 hours

Pavlo Sirous

Pavlo Sirous

Senior Ruby on Rails developer

Ukraine - Tests: 10 - Portfolio: 18

I build Web tools that solves your business problems making it more profitable. I don't like to waste your and my time. For the years working as a freelancer, I've made my own working ethic. I don't track time while coffee breaks, freelancing doesn't equals working at office. Last 5 years I've spend to develop myself as a professional in web programming industry. I'm a full-stack developer (Ruby on Rails/jQuery/html/css/deploying). Web scrapers creator (nokogiri, mechanize, watir). I develop my skills consistently, and prefer projects where I can grow as a professional. I'm looking for projects with strong believes in best practices to participate and to build good relationships. What you can expect from me: * Quality work (heavy testing, best practices, readable and maintainable code that "just works") * Short response time (actually I'd even prefer daily conference calls via skype) * good speaking English * Responsibility for tasks/project I work on. * Seamless integration with your current team What would I expect from you: * Clear task definition * Easy communication * Adequate and in-time payment Keywords: Rails, Agile, TDD, Coffeescript, AngularJs, Postgresl, Mysql, AWS, S3, Heroku, Ruby,

Groups: Engine Yard Ruby on Rails Professionals Network

$88.89 /hr
4,471 hours

Eugen Zagorodniy

Eugen Zagorodniy

Software Developer

Ukraine - Tests: 4

I am enthusiast with both commercial and non-commercial experience in IT. My experience includes: * Python (Django, Pylons/Pyramid, Tornado, webpy) web development; * Voluntary support of small-to-mid scale computer networks; * Unix/Linux server administration; * Contributing to various open-source projects; * Fun oriented not-so-mainstream tools (Haskell, Erlang, Forth) self-education. I tend to choose tools suitable for specific problems rather then focus on a single technology. I am available for research on unfamiliar domains and technologies. Learning new things is fun; learning new things for real-world tasks is double fun! I am looking for challenging IT projects which hopefully will save someone's time / provide new opportunities / make the world better.

Groups: Coding Champs

$32.00 /hr
1,350 hours