oltbaba@googlemail.com
Objectives: Empower people. Embrace change. Eliminate waste.
Strong experience with bootstrapping, troubleshooting, improving IT environments. Practitioner, coach for lean and agile methods.
Freelancer
Nov 2012 - present (ongoing ...)
I do consulting and development for Mac / iOS, mobile web applications (native or web-apps) and Rails solutions.
Up to date skill matrix can be found on Xing
Aug 2020 ongoing... (Frankfurt)
Bosch ebike Systems / COBI.Bike: iPhone App - App-Store link
Sharing of detailled information currently restricted by NDA.
Feb 2019 - July 2020 (18 months, Frankfurt)
COBI.Bike: iPhone App - App-Store link
Integration of the COBI iOS app in the Bosch ecosystem. User facing migration to Bosch-ID (OpenID connect) user registration and authentication.
Aug 2018 - Dec 2018 (5 months, Frankfurt)
YUNAR: iPhone App - App-Store link
Development of iOS app in Swift4. Noteworthy: RxSwift + MVVM + Coordinator
May 2018 - July 2018 (3 months, Frankfurt)
COBI.bike: iPhone App - App-Store link
Integration of Mapbox for all map related aspects. swift4, Objc and JS
Jan 2018 - Apr 2018 (4 months, Berlin)
adidas: iPhone App (in house app)
Development of iOS app in Swift4. API server communication and persistence with Realm.
Jan 2017 - Dec 2017 (12 months, Munich)
Helvetia Versicherungen: iOS / Android App
Role: Tech Lead
Development of a universal iOS app (iPhone & iPad) plus Android app in Swift4. Rails5 API backend.
Oct 2016 - Dec 2016 (3 months, Frankfurt)
COBI GmbH: iPhone App - App-Store link
Feature development in the COBI iOS app (Objective-c & Swift).
Feb 2016 - June 2016 (5 months, Munich)
Continental AG: iPhone App (enterprise app)
October 2015 - Sept 2016 (12 months, Munich)
InterNations iPhone App - App-Store link
June 2015 - Dez 2015 (7 months, Berlin)
Coca-Cola: Watch-App (enterprise app)
May 2014 - Sept 2016 (24+ months, Dresden)
LOVOO: iPhone / iPad App - App-Store link
Jan 2014 - April 2014 (4 months, Berlin)
TunedIn: iPhone / iPad App - App-Store link
Mar 2013 - Sept 2013 (7 months, Munich)
Termine24: iPhone / iPad Apps for Customers and Merchants - App-Store link
Jan 2013 (1 month, Berlin)
Webraumfahrer: iPad App for Hotel library - App-Store link
Nov 2012 - Dec 2012 (2 months, Berlin)
AKQA: Technical Delivery Manager for the website relaunch of Audi USA.
CTO at relevantec
Dec 2011 - Nov 2012 (1 year)
I joined relevantec, because direktzu® is on the verge to its next evolutionary step as a tool for organizational development - particularly within larger companies and organizations. Working with and leading the company's agile IT team was challenging.
Analyzed and reviewed technologies for a second product pipeline. Kicked off product development for second product in the company's pipeline.
Technologies: Ruby on Rails, CoffeeScript, AngularJS, Javascript and a bunch of Ruby gems.
Products: direktzu® SaaS product, iBack.to instant feedback
Founder & CTO at mobile melting
Apr 2009 - Nov 2011 (2 years, 8 months)
Developed the technical environment to let creative professionals create and deliver walk-in entertainment products for smartphones. Build the platform behind storytude.com, which caters smartphone optimized multimedia-entertainment content. Provide multimedia content and the platform delivers it as an entertainment product to the mobile client.
Founded the company, planned and administered software development from day one.
Technologies: Ruby on Rails, iOS (Objective-C), Android (Java), API development, encoding & delivery of multimedia content optimized for smartphones, in-app-purchases
Products: storytude, multiple iOS apps
Software Engineer at namics
Apr 2008 - Nov 2008 (8 months)
Participated in portal relaunch of DAB bank, a leader in online banking and security trading.
Integrated the mobile TAN authentication process into DAB bank's web portal.
Technologies: Sun ONE Application Server 8.2, Spring Framework, Acegi aka Spring Security, Hibernate, JDBC, EJB, Javascript, JSP, Oracle 10g, Maven, Solaris, Linux.
IT Consultant at MaibornWolff
Mar 2006 - Mar 2008 (2 years, 1 month)
Mainly worked for larger clients as IT-Consultant. Main project was for Deutsche Post in an international environment (Bonn, Atlanta).
Technologies: Groovy, Java, JSP, Spring, Oracle
Founder & CTO at iSoftworks
Apr 2006 - Dec 2008 (2 years, 9 months)
Created the software foundation to enable private pilots to prepare for flight training in CVFR. Provided a rich desktop application in Java.
The project started as a university project and eventually made it out on the market.
Technologies: Java, Swing, PHP, MySQL
Software Engineer at Avid Technology
Mar 2005 - Dec 2005 (10 months)
Provided an Eclipse version control plugin to integrate NXN's alienbrain VC-system into the Eclipse IDE. Inspiring environment to work in, due to the aquisition of nxn by Avid (www.avid.com) and the following transition.
Technologies: Java, Eclipse Platform, Eclipse JDT