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gitgis

and invite this freelancer
Flag of Poland Szczecin, Poland
Member since August, 2011

* 12 years of PHP (Zend1, Symfony2, Doctrine2, Debug, Optimisation techniques) * 5 years of Java developement (Servlets, JSP, JDBC, JPA, Hibernate, JAX-WS, JAX-RS, JAXB, Jackson, Guice, Guava, Maven, Java concurrency) * HTML (JavaScript, jQuery, CSS3) * DB (MySQL, PostgreSQL, MongoDB) * GIS (Google Maps API, MapTP API, OpenLayer, PostGIS, MongoDB) * Other (GIT/SVN/CVS/Hg, Jenkins, Linux Admin, Facebook & Google Data APIs,) * Excelent problem solving skills * Quality and clean code oriented * Born to code

5.0 / 5
6.6 / 10

@gitgis

  • 93%Jobs Completed
  • 100%On Budget
  • 100%On Time
  • 38%Repeat Hire Rate

Recent Exams

  • US English Level 1 Top 17%
    95%

Top Skills

  • PHP
  • Software Architecture
  • MySQL
  • Java
  • Javascript
  • Linux
  • AJAX
  • Facebook Marketing
  • CSS
  • Agile Development
  • Software Development
  • Website Design
  • Web Security
  • J2EE
  • eCommerce
  • Software Testing
  • Test Automation
  • Zend
  • Cryptography
  • Shell Script
  • NoSQL Couch & Mongo
  • Nginx
  • Usability Testing
  • HTML5
  • Mathematics
  • jQuery / Prototype
  • GPS
  • Symfony PHP
  • Website Management
  • Scrum Development
  • Google Web Toolkit
  • Puppet
  • PostgreSQL

Recent Reviews

  • image of Anon12345 MAIN SALES CRM $2578.00 USD

    “We love Greg! He's easy to communicate with & delivers what we want. He's completed 3 high quality products for us despite the only form of communication being email.”

    Anon12345 Flag of United States 8 months ago.
    • PHP
    • Java
    • AJAX
    • MySQL
  • image of lynx77 Create a layer on top of Google Maps which shows the direction of the sun at every chosen date - repost $2143.00 USD

    “Gitgis overdelivered on every point possible. Very flexible, very savvy. Great communication. Would hire him again and again and again.”

    lynx77 Flag of Netherlands 11 months ago.
    • Javascript
    • XML
    • AJAX
    • Software Architecture
  • image of Anon12345 Minor changes to Junk CRM $300.00 USD

    “Greg is very easy to work with. Always willing to accommodate what we wanted. My employees are very happy with the final result.”

    Anon12345 Flag of United States 1 year ago.
    • PHP
    • Hire me
  • image of Anon12345 Customized Customer Relationship Management Database (Custom CRM) [Sealed]

    “It was a pleasure working with Greg. He helped us create a Customer Relationship Management software from scratch exactly to our specs.”

    Anon12345 Flag of United States 1 year ago.
    • PHP
    • XML
    • User Interface / IA
    • Software Architecture
    • Database Administration
  • image of beyond88 Whatsapp Mass/Bulk sms software $1237.00 USD

    “One of the best freelancers we have worked with. Responsible in providing us a quick fix and patch when we need them, and communication is superb! Really patient when working with our requirements, and would definitely hire this person again.”

    beyond88 Flag of Malaysia 1 year ago.
    • Software Architecture
  • image of Djor Channel + program json files to wordpress posts $400.00 USD

    “Greg did it a really great job! He is really easy and fast to communicate with and he also give excellent advise to make the project better. I hope to continue working with him.”

    Djor Flag of Netherlands 1 year ago.
    • PHP
    • MySQL
    • Hire me

Education

Master Degree

2004 - 2006 (2 years)

Engineer degree

1999 - 2002 (3 years)

Certifications

M101J (2013)

JSON, schema design, querying, insertion of data, indexing and working with language drivers.

M102 (2013)

10gen's MongoDB for DBAs / Administrators

Publications

Introduction to Restlet

Introduction to Neo4J

API Driven Developement

MySQL optimisation techniques

Badges

  • Contest Host

    Post a contest.
  • Simply the Best

    Complete 5 or more projects, with a 95% completion rate.
  • The Critic

    Post 10 Reviews.
  • Feedback Guru

    Receive 10 reviews
  • Perfectionist

    Receive 5-star ratings in 90% of your completed projects (minimum 10 projects).
  • The Economist

    Complete 10 projects on budget.
  • Frequent Visitor

    Log in in every day for 1 month.
  • The Regular

    Log in every day for 1 week.
  • Smart Money

    Create 10 Milestones.
  • Neighbourhood Watch

    Reporting a user who violates our terms of service
  • The Collector

    Reach a balance of 5,000 credits.
  • US English Qualified

    Pass the US English Exam (Level 1)
  • The Seeker

    Bid on 20 projects.
  • All Star

    Receive a 5-star rating for a project.
  • The Adventurer

    Complete your first project.
  • Warren Buffet

    Complete a project worth over $1000 USD.
  • High Roller

    Complete a project worth over $500USD (or equivalent) on Freelancer.com.
  • The Verified

    Verify your payment method
  • The Enforcer

    Reporting a project or contest that violates our terms of service.
  • The Perfectionist

    Edited a bid.
  • Nine-to-Fiver

    Win a project and accept the offer.
  • The Collector

    Reach a balance of 5,000 credits.
  • Warren Buffet

    Complete a project worth over $1000 USD.
  • Simply the Best

    Complete 5 or more projects, with a 95% completion rate.
  • Perfectionist

    Receive 5-star ratings in 90% of your completed projects (minimum 10 projects).
  • The Economist

    Complete 10 projects on budget.
  • Frequent Visitor

    Log in in every day for 1 month.
  • Smart Money

    Create 10 Milestones.
  • All Star

    Receive a 5-star rating for a project.
  • High Roller

    Complete a project worth over $500USD (or equivalent) on Freelancer.com.
  • Contest Host

    Post a contest.
  • The Critic

    Post 10 Reviews.
  • Feedback Guru

    Receive 10 reviews
  • The Regular

    Log in every day for 1 week.
  • Neighbourhood Watch

    Reporting a user who violates our terms of service
  • US English Qualified

    Pass the US English Exam (Level 1)
  • The Seeker

    Bid on 20 projects.
  • The Adventurer

    Complete your first project.
  • The Verified

    Verify your payment method
  • The Enforcer

    Reporting a project or contest that violates our terms of service.
  • The Perfectionist

    Edited a bid.
  • Nine-to-Fiver

    Win a project and accept the offer.