• Implemented features, wrote tests and fixed bugs on the Hilton Honors app using technologies like MVVM, Data Binding, RxJava, Dagger, Retrofit, Apollo GraphQL, Gson, JUnit, Robolectric, and Mockito• Led a 4-person development team for the Arby’s app, and parts of the Knott’s Berry Farm, Kings Island, and Vidanta Resorts apps using MVVM, MVP, Data Binding, Kotlin, Dagger, RxJava, Retrofit, Gson, JUnit, Robolectric, Mockito, MockK, WireMock, UIAutomator, and Espresso• Led a 7-person team for the SITYO app using MVI, Kotlin, Jetpack libraries, Koin, RxJava, Retrofit, Apollo GraphQL, Gson, Realm Sync, JUnit, Robolectric, MockK, WireMock, and UIAutomator• Designed architecture and evaluated as well as selected technologies, tools, and libraries• Worked on small selected groups to set company-wide standards in regards to modular development and ticket estimation• Conducted code reviews and managed build pipeline to ensure high quality of code and product releases• Collaborated closely with design, product, project, QA teams and clients to ensure timely and cost-effective delivery of features and overall alignment of product requirements• Managed employees and grew talent through onboarding, mentoring, performance management and conducting regular one-on-one meetings• Supported the hiring process by conducting technical as well as cultural-fit interviews and participating in candidate selection

• Used latest Android technology, libraries and design guidelines to develop mobile apps and android libraries• Apps include: + SQL Client (https://goo.gl/B6wLcs) with 100,000+ downloads + VR CAD Viewer for Cardboard (https://goo.gl/fp1T29)• Libraries include: + AndroidDrawerSheet (https://github.com/sebdomdev/AndroidDrawerSheet) + OpenFileDialog (https://github.com/sebdomdev/OpenFileDialog) + CheckableGridView (https://github.com/sebdomdev/CheckableGridView)

• Designed and implemented web-technology-based intranet solutions for project controlling, workflow-management and product-catalogs• Used latest web technologies like HTML5, CSS and various JavaScript-libraries• Conducted code-reviews with special focus on security related issues

• Developed applications for mobile devices including requirement analysis, design, and implementation in order to improve user experience and enable engagement management when away from the office• Liaised with clients about project requirements, progress, and solutions• Created project plans with timelines, milestones, resources, and responsibilities as well as provided regular updates of milestones to project stakeholders• Compiled and reviewed functional specifications, management summaries, and supporting documentation• Supported proposal formulation for IT strategy consulting offerings

• Designed and developed mobile app “Insider Trades” for the Android platform that allows users to track insider trading activities filed with the SEC• Executed complete software development life cycle from analysis to maintenance

• Led discussion sessions and taught additional material• Held office hours to discuss student progress and consult on projects • Created, monitored, and graded assignments, projects, and tests• Kept classroom record and administered course management system• Courses included: Competitive and Strategic Analysis, Marketing and Distribution Management, Business Data Communications, and Introduction to Databases for Management

• Developed automated reporting solution that summarizes data from different sources and publishes it to SharePoint in order to identify planning issues and improve forecasting for professional services• Created program to gather contract data and compare forecasted with actual figures• Improved company’s intranet system by customizing sites utilizing MS SharePoint 2010 and JavaScript• Contributed to developing the marketing strategy of professional services by researching managed service offerings and worldwide data protection laws

• Compared and recommended selected data mining tools for improvement of the company’s data warehouse and business intelligence environment• Executed software development projects in a team environment including requirement analysis, conceptual design, and implementation leading to process improvements for: o Loading accounting forecasts and mercantile contract reports into a data warehouse for online analytical processing o Loading SAP ERP exports into a data warehouse o Mercantile contract management prototype for improving the handling of long-term contracts o Tool for comparing arbitrary MS Excel workbooks

• Founded Opendinner UG to create and maintain a social network for dinner invitations• Designed and developed back end and front end business logic and database layer for website

• Collaborated in a project team of 70 for an internal sales documentation software in the automobile industry• Designed, developed, and tested central components of distributed J2EE systems• Modeled components with the IBM Rational Software Architect• Adjusted security components of the software based on J2EE and the customers’ J2EE platform• Developed tools to generate data structures for directory service simulations and Java properties files in order to test product functionality

• Adjusted user administration component of CommuniGate Pro mail system with Perl scripts• Implemented SNMP agent for spam filter component of CommuniGate Pro mail system• Integrated spam information into Cacti sent by the implemented SNMP agent• Adjusted backup tool for VMware ESX server for backing up virtual machines during runtime