Lasse Schuirmann
Open Source Lover and Startup Founder

Lasse Schuirmann is a freelance software developer who cares passionately about open source, collaboratively developed software. After he was awarded the Google Summer of Code sholarship, he began mentoring several students while administering the GSoC program for the GNOME organization. Currently he spends most of his time maintaining and developing his open source project coala to help developers improving their code quality without hassle. The coala project group has over 200 contributors and is present at conferences all around the world. In his spare time, Lasse forges high quality (mostly python) software and conducts workshops for clients of his company Viper Development (, pursues a master degree in Computer Science, develops GitMate (, a hand crafted piece of software that supports developers during their whole workflow, and talks and performs workshops at conferences around the globe.
Prosystem AG
2009-08-01 - 2010-04-31
Software Developer
    Draeger Medical GmbH
    2012-08-01 - 2016-01-31
    Integrated Degree Student
      Viper Development
      2015-12-01 - Ongoing
      Viper Development offers custom forged software, consulting and workshops around open source software.
        2013-01-01 - Ongoing
        Founder and Maintainer, GSoC Mentor and Admin
        coala provides a common command-line interface for linting and fixing all your code, regardless of the programming languages you use.
          2014-02-01 - Ongoing
          Contributor, GSoC Mentor and Admin
            Albert Schweitzer Gymnasium
            General Certificate of Education -
            2006-08-01 - 2012-08-01
            Hamburg University of Technology
            Computer Science and Engineering - Bachelor
            2012-10-01 - 2015-11-01
            Hamburg University of Technology
            Computer Science - Master
            2015-11-01 -
            Second Place and Two Special Awards
            Jugend Forscht
            As the youngest participant of the city wide level of Jugend Forscht.
            Special Award for the Best Interdisciplinary Work
            Jugend Forscht
            Delegate of the city Hamburg
            International Mathematical Tournament of Towns
            Google Summer of Code Stipend
            Google Inc./GNOME
            For the project 'Boxes - Hardening sprint, express installation improvements & ISO download'.
            Native Speaker
            • FOSDEM
            • openSUSE Conference
            • GUADEC
            • LinuxWochen
            • PyCon
            • For Clients
            Software Development
            • Open Source Development Processes
            • Community Development
            • Python
            • Continuous Integration
            • Code Quality
            • Baritone
            • Piano
            • Violin
            • Guitar
            Music (Various Instruments)

                Stanislav Komanec, Team Lead at Skypicker
                Viper Development brought new ideas into our system. Their empathy and leadership skills have persuaded developers to want to give up legacy code and difficult habits.
                Dmitry Trofimov at PyCon DE, Team Lead at PyCharm
                This social talk was the best I have heard in all the conferences this year! Being passionately, very practical and insightful - a rare combination.
                Prof. Dr. Christoph Ihl, Hamburg Technical University
                Highly competent and efficient. Very smooth to work with.