Hai B.
Drop Here

Hai B.

Senior developer in ROR/J2EE, E-commerce, SNS, CMS, CRM, SaaS

$33.33/hr

Hanoi, Vietnam


Hai B. has added 8 portfolio pieces. Create an account to review them.

Dear partners, Thank you very much for choose me to work ... moreon your projects. That it help me to get much experience on technical solutions and management. I have built a good team from 2012, ScrumTobe Software (www.scrum2b.com). We have growth up to 10-member team now. From 2015, I focus on activities of the team on outsourcing services in Software Development. And I will not work as freelancer anymore, If you need to get higher quality services on Software Development, please feel free to send me message or invite our team into your jobs. Our UpWork profile at: https://www.upwork.com/companies/~018a573a06d7ae8a23. Thanks and Best regards, Hai Bui ---- My personal skills/experience: ★ Programming skills: ☆ Ruby on Rails (2.3.x, 3.x, 4.0), ActiveMerchant, Devise, Attached, Memcache, Haml, HtmlDoc, Rspec, Cucumber, Capistrano ☆ J2EE, Struts, Spring, jBoss, Hibernate, JasperReport, Mockup ☆ HTML5/CSS3, jQuery, Bootstrap, BackboneJS, Sencha Touch, Responsive web ☆ Shopify Liquid/Shopify App ★ System Development experience: ☆ Test Drivent Development, Behaviour Driven Development, Selenium IDE ☆ Continuous Integrate (CI), GitHub (branching model) ☆ APIs: Paypal, Stripe, Balanced Payment, Stamps, MailVu, Twilio. etc. ☆ SpreeCommerce, SpreeGateway, Redmine Plugins ☆ Image Magick, Sphinx, Elastic Search engine ★ Server Administration skills: ☆ Nginx, Unicorn, Phusion Passenger, Apache ☆ Tomcat Apache, Spring server, jBoss server ☆ Cloud Application: Heroku, Rackspace, EngineYard ☆ SSH/SSL, DNS ☆ Server: AWS/EC2, CentOS/Ubuntu/FreeBSD, Delicated servers, VPS ☆ MySQL, PostgreSQL, PL/pgsql, MongoDB, Oracle 11g, OLAP I have experience with Scrum/Agile, speak fluently in English. From my experience, I understand how important to write clean codes, easy to read and easy to maintain. less

Overview

Dear partners, Thank you very much for choose me to work on your projects. That it help me to get much experience on technical solutions and management. I have built a good team from 2012, ScrumTobe Software (www.scrum2b.com). We have growth up to 10-member team now. From 2015, I focus on activities of the team on outsourcing services in Software Development. And I will not work as freelancer anymore, If you need to get higher quality services on Software Development, please feel free to send me message or invite our team into your jobs. Our UpWork profile at: https://www.upwork.com/companies/~018a573a06d7ae8a23. Thanks and Best ... moreregards, Hai Bui ---- My personal skills/experience: ★ Programming skills: ☆ Ruby on Rails (2.3.x, 3.x, 4.0), ActiveMerchant, Devise, Attached, Memcache, Haml, HtmlDoc, Rspec, Cucumber, Capistrano ☆ J2EE, Struts, Spring, jBoss, Hibernate, JasperReport, Mockup ☆ HTML5/CSS3, jQuery, Bootstrap, BackboneJS, Sencha Touch, Responsive web ☆ Shopify Liquid/Shopify App ★ System Development experience: ☆ Test Drivent Development, Behaviour Driven Development, Selenium IDE ☆ Continuous Integrate (CI), GitHub (branching model) ☆ APIs: Paypal, Stripe, Balanced Payment, Stamps, MailVu, Twilio. etc. ☆ SpreeCommerce, SpreeGateway, Redmine Plugins ☆ Image Magick, Sphinx, Elastic Search engine ★ Server Administration skills: ☆ Nginx, Unicorn, Phusion Passenger, Apache ☆ Tomcat Apache, Spring server, jBoss server ☆ Cloud Application: Heroku, Rackspace, EngineYard ☆ SSH/SSL, DNS ☆ Server: AWS/EC2, CentOS/Ubuntu/FreeBSD, Delicated servers, VPS ☆ MySQL, PostgreSQL, PL/pgsql, MongoDB, Oracle 11g, OLAP I have experience with Scrum/Agile, speak fluently in English. From my experience, I understand how important to write clean codes, easy to read and easy to maintain. less

Hai B.
Drop Here

Hai B.

$33.33 /hr

Senior developer in ROR/J2EE, E-commerce, SNS, CMS, CRM, SaaS

Hanoi, Vietnam

Overview

Dear partners, Thank you very much for choose me to work on your projects. That it help me to get much experience on technical solutions and management. I have built a good team from 2012, ScrumTobe Software (www.scrum2b.com). We have growth up to 10-member team now. From 2015, I focus on activities of the team on outsourcing services in Software Development. And I will not work as freelancer anymore, If you need to get higher quality services on Software Development, please feel ... morefree to send me message or invite our team into your jobs. Our UpWork profile at: https://www.upwork.com/companies/~018a573a06d7ae8a23. Thanks and Best regards, Hai Bui ---- My personal skills/experience: ★ Programming skills: ☆ Ruby on Rails (2.3.x, 3.x, 4.0), ActiveMerchant, Devise, Attached, Memcache, Haml, HtmlDoc, Rspec, Cucumber, Capistrano ☆ J2EE, Struts, Spring, jBoss, Hibernate, JasperReport, Mockup ☆ HTML5/CSS3, jQuery, Bootstrap, BackboneJS, Sencha Touch, Responsive web ☆ Shopify Liquid/Shopify App ★ System Development experience: ☆ Test Drivent Development, Behaviour Driven Development, Selenium IDE ☆ Continuous Integrate (CI), GitHub (branching model) ☆ APIs: Paypal, Stripe, Balanced Payment, Stamps, MailVu, Twilio. etc. ☆ SpreeCommerce, SpreeGateway, Redmine Plugins ☆ Image Magick, Sphinx, Elastic Search engine ★ Server Administration skills: ☆ Nginx, Unicorn, Phusion Passenger, Apache ☆ Tomcat Apache, Spring server, jBoss server ☆ Cloud Application: Heroku, Rackspace, EngineYard ☆ SSH/SSL, DNS ☆ Server: AWS/EC2, CentOS/Ubuntu/FreeBSD, Delicated servers, VPS ☆ MySQL, PostgreSQL, PL/pgsql, MongoDB, Oracle 11g, OLAP I have experience with Scrum/Agile, speak fluently in English. From my experience, I understand how important to write clean codes, easy to read and easy to maintain. less

Hai B. has added 8 portfolio pieces. Create an account to review them.

Work History and Feedback

  • Rails e-commerce site MVP build

    Sep 2013 - Mar 2015
    No feedback given

    538 hours

    $16.67 / hr
    $9,160.15 earned

  • Shopify store edits and app integration

    Jul 2014 - Sep 2014
    No feedback given

    14 hours

    $11.11 / hr
    $151.83 earned

  • Developer for Shopify

    Sep 2013 - Jan 2014
    No feedback given
    $25.00 earned
    Fixed Price

  • Simple Shopify theme modifications

    Sep 2013 - Oct 2013
    5.00
    Great work again
    $60.00 earned
    Fixed Price

  • HTML to Shopify Liquid Conversion

    Aug 2013
    5.00
    Professional, Got the project done within the timeframe and had great suggestions on extra things that could be done.
    $260.00 earned
    Fixed Price

  • Shopify Theme Guru Needed

    Aug 2013
    4.70
    Hai took time to understand the objective, wrote efficient code, and completed the task within a reasonable time. Hai was also a pleasure to work with and responded to all questions within a day. I plan on hiring him again for other work and would recommend him.

    6 hours

    $13.00 / hr
    $71.50 earned

  • Seeking Shopify developer for custom theme integration

    Jul 2013 - Aug 2013
    4.85
    Mr. Bui is a great developer and was very helpful with the integration of our company's custom Shopify theme. He communicates on a daily basis and works very efficiently. I can recommend his service with confidence.

    9 hours

    $16.67 / hr
    $152.81 earned

  • Get Ruby on Rails App Running

    May 2013
    5.00
    I was very happy with the quality of work done and the speed of delivery as well. Would definitely hire again.

    1 hour

    $22.22 / hr
    $81.48 earned

  • Ruby on Rails REST API development

    Jul 2012 - Dec 2012
    5.00
    Thanh is one of the most talented Ruby on Rails developer on odesk with great understanding of overall RoR architecture, he helped us built a full feature JSON API framework used as the backend of our iOS app, it works great. Would def work with him again.
    $200.00 earned
    Fixed Price

  • HTML/CSS with Rails experience

    Jul 2012 - Oct 2012
    4.05
    The freelancer has made this comment private

    25 hours

    $16.67 / hr
    $414.09 earned

  • View More (1)

Hai B. has more jobs to show. Create an account to review them.

Tests

NameScore (out of 5)Time to Complete
RUBY Programming Skills Test (Hands-on programming skills)4.65Top 10%7 mins
Ruby on Rails 2.3 Test3.75Top 30%25 mins
Ruby on Rails Test v1 (Old)3.90Top 30%28 mins
SQL Test3.10Top 20%36 mins
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