Sebastian Gassner - Software Engineer, University of Passau

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Work Background

Sebastian GassnerOpen Source Software Consultant

Jul. 2013Data integration engineering, parallel data processing, backend development, horizontal scaling. 100 % open source.

FreelanceMinutiae-App Book Rendering

Aug. 2020 - Jun. 2021Google Cloud Run service rendering photo collections of books into PDF format, for printing. Resolve geo locations and local times zones. "Minutiae is an anonymous anti-social media app. No profiles, no likes, no comments. Once a day, at a random moment, everyone receives an alert. Capture whatever is in front of you, there and then. Explore the moments of one random stranger. Capture every minute in 24 hours, over 1440 days. (From https://minutiae-app.org/, visited on 20210602)

Pipe Dream Technologies GmbHSoftware Engineer (Backend)

Jan. 2011 - Dec. 2013Developed the backend of Pipe; prototyping, system architecture design, horizontal scalability; MongoDB, Ruby, Rack, Sinatra; AWS.

RAY (now Fintoto)Playscan at RAY

Jan. 2010 - Dec. 2012Helsinki, Southern Finland, FinlandIntegrating Playscan at RAY, now Fintoto. MySQL, Ruby, C/C++, machine learning

IT System VästIntern

Jan. 2003 - Dec. 2003Develop and program an online portal where health care practitioners could offer their services to clients. Java, JSP, MySQL.

AB Trav och GaloppRG System Implementation

Aug. 2018Stockholm, SwedenImplementation and integration of PTS (player tracking system) at ATG, for Sustainable Interaction, silabs.se. 📋 Data specification, data integration, implementation of risky gambling behaviour model and analysis engine, various REST APIs, on-site system integration and problem solving. 💻 Node JS, Go, Shell scripting, Mongo DB, Rabbit MQ, JWT, Docker, OpenShift, Linux.

bpTechnical Assessor

Nov. 2022RemoteTechnical interviews for different roles and levels, focused on time complexity analysis, in current higher programming languages.

University of PassauResearch Assistant

Oct. 2014Passau Area, GermanyTeaching Python programming, building hardware for digitization, OCR, web archiving.

DeliverooSoftware Engineer

Apr. 2021 - Sep. 2022RemoteDeveloping micro services in Go; maintaining legacy applications in Ruby; investigating, specifying and documenting extensions and performance improvements; data migration; enabling worldwide partners to integrate with Deliveroo's services. Go, Ruby, Rails, PostgreSQL, AWS and micro services.

Mr Green Online CasinoGreen Gaming - Responsible Gambling Solution

Jul. 2016 - Dec. 2019Data integration, development of a model identifying risky gambling behavior together with Sustainable Interaction.

ViddyozeCreator

Apr. 2015 - Aug. 2017Developed Viddyoze from the first prototype to the current version. The system allows customizing professional animation templates through a simple web interface, before rendering out high resolution videos. Viddyoze is serving ~60k registered users and rendering several thousand animations a day. Blender, Redis, Rails, Python.

MiljonlotterietPlayscan at Miljonlotteriet

Jan. 2015 - Dec. 2015Stockholm, Stockholm County, SwedenIntegrating Playscan at Miljonlotteriet. MySQL, Ruby, C/C++, machine learning

Goethe-Institut e.V.Artist In Residence

Oct. 2014 - Oct. 2014Krakowski, Małopolskie, Poland"I Don't Understand You" was an art installation in public space in Krakow, Poland, during the "Play Publik" festival. Participants from all over the world are connected to a conference call, unknowingly. Phone booths in public space allow to listen to the conversations emerging. See http://www.playpublik.pl/admin/events/i-don-t-understand-you?locale=en

Svenska SpelResearch Manager/System Architect

Mar. 2010 - Jun. 2013SwedenIdentifying problematic gambling behaviour in online games through statistical data analysis and evolutionary algorithms. Created and authored the Playscan "Data Exchange Specification" to unify and simplify exchange of data with customers; lead developer of statistical data analysis and prediction of future player behaviour; designed and implemented Playscan's AI engine; technical project leader in customer implementation projects. Answering international calls for proposals. Playscan is a subsidiary of Svenska Spel.

FDJ - La Française des JeuxPlayscan at FDJ

Jan. 2010 - Dec. 2011Marseille, Provence-Alpes-Côte d'Azur, FranceIntegrating Playscan at La Francaise des Jeux, the frensch state lottery organization. Oracle, Ruby, C/C++, machine learning