Sebastian Castillo Builes
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Sebastian Castillo Builes

Python Web Developer with security backgrounds


Medellin, Colombia


I got 7 years of experience developing python applications with special skills with Django, Google Appengine and WSGI frameworks. I love to work using scrum like methodologies, manage user stories with pivotaltracker, I really <3 TDD and Continuous integration with Jenkins or CIJoe, run tests with nosetests and when necessary BDD using letucce. I love github ( I have experience leading small development teams and designing high concurrency software architectures (1200 hits per second, 2M registered users apps) I have experience as sysadmin of GNU/Linux, Unix servers and AmazonEC2/Rackspace Cloud instances. I love Debian based linux distributions and have collaborate some security related packages to Debian Project. ... moreMy core competences are innovation, creativity and specially to build and share knowledge as a team. I'm starting up my own company which it's called Nuage ( We offer the service of platform (PaaS) for the Python community so they do not have to worry about scalability and deployment. less

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Work History and Feedback

  • Nov 2012 - Mar 2013

    Django expert needed to create website ASAP

    No feedback given

    2 hours
    $27.78 / hr
    $46.39 earned

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Name Score (out of 5) Time to Complete
Unix Shell Script Test 3.50 Top 30% 34 mins
Internet Security Test 3.10 Top 30% 18 mins

Work History

439 hours worked
7 jobs


More than 30 hrs/week

Associated with

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Da soft
933 hours

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