Profile image of karlheinz
Member since July 29, 2010
4 Recommendations


Online Offline
I am a developer with more than 10 years of experience. My skills include JavaScript (jQuery, AngularJS, Angular, React, Redux, Node.js, Ember.js, Backbone.js), HTML/CSS, PHP (Laravel, Yii, Slim, Drupal, WordPress), Python (Django, Flask), NoSQL (MongoDB, CouchDB, PouchDB), SQL (MySQL, MS SQL, PostgreSQL), GIS (Google Maps API, Leaflet, OpenLayers, Overpass API, ArcGIS Javascript API, ArcGIS REST API, Mapbox GL JS API, PostGIS, pgRouting, ArcGIS, QGIS). I also have experience with C#, C/C++, Swift. I am mainly interested in projects related to maps, cartography, gis, geospatial analysis, geolocation and data visualization.
$40 USD/hr
93 reviews
  • 100%Jobs Completed
  • 100%On Budget
  • 99%On Time
  • 13%Repeat Hire Rate


Recent Reviews

  • image of Adam S. Project for Anatoly S. $250.00 USD

    “Thanks for your help. Will be working with you soon again.”

  • image of Len M. Extend a Node Mapping Application to Show Shape Layers $306.11 USD

    “Anatoly, did a nice job. This was a proof of concept with little scope, and he was fast, highly communicative and competent.”

  • image of Hasan D. Use location / traffic API -- determine # of vehicles / day that pass a list of addresses $1893.24 USD

    “Analtoly and I collaborated to utilize GIS data to identify homes on busy streets from those on non-busy streets. His work was thorough and he was extremely collaborative. For example, we had to develop business rules for identifying and handling edge cases - such as homes bordered by two or three streets. It required nuanced.”

  • image of Christoph H. Geocode addresses and calculate driving time/distance between them $1500.00 USD

    “Anatoly was extremely professional from start to end of the project. Great experience and would definitely work with him again any time.”

  • image of Juan S. Project for Anatoly S. $200.00 USD

    “Your work seems professional. This will help us to see exactly for what we need. Thank you”

  • image of Vladimir J. Tune the Geolocation Mysql Query $72.00 USD

    “He was quick and did a great job in time. Great English, too, so communication was a blessing. I will definitely hire him again for some other projects of ours. [21 November, 2018] He was quick, solved the problem and communicated well. Great English, too. Would hire him again.”


Web Developer, Senior Web Developer, Team Leader

Nov 2005 - Dec 2014 (9 years)

Initially developed websites and then managed team working for EPAC Technologies ([login to view URL]). Implemented redmine, scrum, tdd with phpunit and selenium, code review with phabricator, continuous integration with jenkins, phing, php code sniffer, php mess detector, php copy/paste detector.

Software Developer, Web Developer

Sep 2000 - Oct 2005 (5 years)

Developed shopping websites (php, mysql); name matching program based on an n-gram algorithm (c#); qr-code barcode generator (javascript); website to control business trips, tickets, hotel booking, visas and passports ([login to view URL], mssql server); website for admin section of a credit scoring calculation module (jsp, oracle); cd burning application and download manager (visual c++, starburn sdk)


Bachelor's Degree in Computational and Applied Mathematics

1994 - 1999 (5 years)


MongoDB Certified Developer, Associate Level (2014)


[login to view URL]

Professional Scrum Master I (2014)

[login to view URL]

Zend Certified PHP Engineer (2016)


[login to view URL]

Fundamentals of GIS (2016)


Fundamentals of GIS by University of California, Davis on Coursera. Certificate earned on March 22, 2016

GIS Data Formats, Design and Quality (2016)


GIS Data Formats, Design and Quality by University of California, Davis on Coursera. Certificate earned on August 14, 2016

Geospatial and Environmental Analysis (2016)


Geospatial and Environmental Analysis by University of California, Davis on Coursera. Certificate earned on August 28, 2016.

Imagery, Automation, and Applications (2018)


Imagery, Automation, and Applications by University of California, Davis on Coursera. Certificate earned at Wednesday, August 15, 2018


  • US English Level 1
  • UK English 1
  • Google Maps API 1


  • Facebook Connected
  • Preferred Freelancer
  • Payment Verified
  • Phone Verified
  • Identity Verified
  • Email Verified

My Top Skills

Browse Similar Freelancers