Jonathan Stellwag

• Restructured the organization into cross-functional teams and reduced siloing • Simplified the leadership setup and defined the Team Lead role model and responsibilities • Responsible for 60+ employees and overall delivery and business performance • Built a Power BI controlling setup for utilization, margin, and forecasting • Improved staff augmentation sellability through sharper profiles and better matching

• Led development of an Android HMI UI library and SDK components used in automotive contexts • Owned architecture and API design and contributed hands-on in implementation • Customized AOSP components to meet OEM requirements • Ran delivery planning and customer alignment and acted as proxy Product Owner when needed • Kept quality high through reviews, standards, performance work, and technical debt control

• Led Web, Mobile, and .NET with 20+ people in total, including 11 in .NET • Continued to run Web/Mobile while taking over .NET for 8 months • Split one .NET unit into two teams and installed two Team Leads • Improved year over year results in .NET with roughly 20% revenue growth and about half the loss compared to the previous year • Maintained Web/Mobile utilization above company average with double-digit profitability and full cost coverage • Co-led 60+ project inquiries and customer deliveries

• Led 13+ people with around €1M annual revenue responsibility • Kept utilization above company average and achieved double-digit profitability with full cost coverage • Grew a key automotive account delivery team from 3 to 14 • Improved commercial conditions including hourly rates and increased revenue for key customers • Co-led 60+ project inquiries and customer deliveries

• Led up to 11 people at a time and 17 people in total over the period • Focused on mentoring, technical leadership, and delivery stability • Stayed hands-on in architecture and development throughout • Took on commercial responsibility from mid 2022 and improved utilization and financial performance • Turned the unit into sustainable profitability with high single-digit margin and close to €1M annual revenue

I offer various capabilities: - software development in a cross functional team for chrome based devices - Implementation of an Angular UI Library with focus on widgets, performance and animations - Implementation of expandable software architectures with a focus on quality and re-usability - Definition of APIs, testing strategies and best practices Techsack: - Angular - TypeScript / JavaScript - RxJS

As a senior software engineer, consultant and project manager my focus is to deliver tech know-how to different projects and customers. My focus is to stay on the cutting edge to help customers create efficient and sustainable products that prevail on the market and make customers happy. Tech stack: - TypeScript / JavaScript - Kotlin - RxJS Frameworks: - Angular 2+ - Android - React Native - React JS - NativeScript

Bachelorthesis > Topic (DE): Entwicklung einer Business to Business Applikation als Grundlage für die Evaluation von React-Native. > Topic (EN): Development of a Business to Business application as basis for the evaluation of React-Native. > Grade: 1.0

> Devolopement of Cross-Platform-Applications for iOS & Android (React-Native, Redux, Firebase, NoSQL, Angular JS) > Development of a CMS (AngularJS, Firebase) > Mobile Testing > Part of an agile team (SCRUM) > Requirement definition > Assistant Customer Mobile & Web Developement

> Feasibility analysis (Native-, Hybrid-, Cross-Platform-Developement) > Developement of an Application by use of React-Native and Firebase > Assistant Customer Mobile & Web Developement > Application Testing

Fachlagerist

IT-Management. Development of a Business to Business application as basis for the evaluation of React-Native.