Android Experts in Hamburg

• Responsible for the overall planning, concept, and operational execution of content production for Doppelherz International, including coordinating video and photo productions for international content
• Strategic planning, management, and execution of the D2C content strategy for Doppelherz Germany, especially for platforms such as Amazon, to increase reach, engagement, and conversion
• Independent concept development and execution of the collagen beauty campaign as well as organization and project management of the Doppelherz image film, including close coordination with internal departments, external agencies, and production partners
• Ensuring deadlines, budgets, and quality standards while consistently following the Doppelherz guidelines

• Disciplinary and professional leadership of the IT and service team
• Definition and documentation of the Current Mode of Operation (CMO) in Confluence: application landscape, infrastructure, networks, backup & storage
• Development of the Future Mode of Operation (FMO) including process analysis & stakeholder interviews with all departments using BPMN and flowcharts
• Optimization of license management: reduction of ongoing software costs by approx. 17% p.a.
• Introduction and establishment of Jira as the central tool for project and service management
• Introduction and rollout of the HR software MindKey to digitize HR processes
• Introduction of a VoIP solution with Microsoft Teams incl. PSTN connection to replace classic telephony
• Introduction of the production and planning software OptiControl to digitize operational processes
• Rollout of Intune as a Mobile Device Management solution for Windows, iOS and Android
• Build-up of Power BI dashboards for machine park monitoring and financial reporting
• Planning and execution of the IT consolidation of two locations for 170 users
• Introduction of automated penetration testing with Pentera
• Coaching and mentoring the team in agile methods & project management
• Operational support in day-to-day business: administration, incident & change management
• Management of external service providers and assurance of the quality of outsourced IT services
• Responsibility for the IT budget incl. planning and controlling
• Direct reporting line to management with regular management reports on IT KPIs, budget and project status

• Atlassian & Business expert
• Lead of 1st, 2nd and 3rd level support, process mapping, process optimization, introduction of a project standard (global user management and documentation) and development of a collaboration platform to optimize teamwork, data management, reporting, ERP transformation
• The client is a sustainability-focused chemical park and offers its employees a full service for the Atlassian product suite. In addition, the adoption of the ERP software by employees, the improvement of data quality and internal exchange or collaboration should be promoted by sharing knowledge and best practices
• Process and standards development
• Project configuration and creation of technical concepts
• Workshops with employees
• Development of scalable solutions and processes and their optimization/automation
• Coordination with department process owners and management
• Process mapping and further development
• Data migration and data mining
• Lead as Scrum Master
• Dashboard for project management with project overview / development of reporting structures

• Creation of a platform where schools can run competitions to collect e-waste or old textiles
• Development of a shared PHP backend for administration by the client
• Connection of two separate WordPress sites via REST API
• Development of a custom WordPress theme with an extensive login area for students
• Setup of normally editable content pages using Elementor

• Further development of the Android app "StarMoney"
• Major XML to Compose redesigns
• Introduction of new technologies and architecture
• Implementation of instant bank transfer
• Development following the agile Scrum process

• Prequalified 200 demands within five weeks on the multi-cloud-commerce platform bechtle-clouds.com with three external consultants
• Served a dual role as project manager and requirements engineer for various enhancements
• Domain topics: reimplementation of Entra ID Sync, improvement of support processes, optimizations in the product catalog
• Demand and project management in ServiceNow
• Refinement of epics and stories with internal teams and external service providers
• Management of the external international service provider

• Led 0→1 launch of a small D2C product, including website and CRM flows.
• Used AI and no-code tools to rapidly prototype, iterate, and operate with minimal overhead.
• Owned end-to-end product decisions across UX, content, analytics, and operations.

Expomate platform

• Built a cross-platform exhibitor inquiry management app using React Native and RoR 8, leveraging RESTful APIs, Solid Queue for background job processing, and Devise for authentication on the backend, with Redux and AsyncStorage for state management and local data persistence.

TaskINT platform

• Developed a unified platform for task execution, time tracking, invoicing, client relations, and staff management using RoR 8 and React.js, utilising RESTful APIs, Sidekiq for background jobs, and Zustand for state management and WebSockets for real-time data sync, with 300+ users onboarded across 5 clients.

• Solution for micro-service and frontend solution for the electric grid
• Leading of development teams
• Technologies: React-Native, TypeScript, Kotlin, AWS, Infrastructure As Code, Serverless Architecture, React, NoSQL, GraphQL, Angular, Playwright, Python, ML(Ops), Kubernetes, Docker

• Founded and led a new SDK team focused on developer experience and device-side innovation while providing data for attribution as Mobile Measurement Partner (MMP) and in-app user behavior tracking
• Built in-app event visualization (funnels, cohorts), enabling product teams to identify drop-offs and improve user engagement
• Implemented automatic in-app purchase tracking across iOS/Android, enabling unified monetization insights across ads and purchases
• Reduced SDK onboarding complexity by cutting predefined events from 80 to 24, significantly making the SDK integration easier
• Delivered anti-fraud features like Google Integrity API; prepared readiness for Privacy Sandbox and iOSAdAttributionKit, reducing fraud traffic by 93% on Android to keep the attribution logic as MMP updated to industry-wide changes
• Managed a team of 6 consisting of mobile developers, full stack developers, QA and data analyst; owned sprint planning and performance cycles

• Independent Software Engineer focusing mainly on complex backend architectures.

• Further development of the compliance products
• Role responsibility as a Senior Software Engineer
• Team size: 5 - 15 people
• Tools: TypeScript, Angular 18, Node.js, Nest.js, AWS, Kubernetes/Helm Charts/Docker, GitLab (CD/CI), Elasticsearch, MySQL, OpenAI, Java, RabbitMQ

• Migration of 3 DE/AT payment iOS/Android apps and web portal to global solution
• Performed a fit gap analysis for 6 consumer apps vs. global solution
• Managed the migration project to global CWC solution, developed end-to-end tests for backend systems, Pi Planning, release planning

• Analyze business processes to evaluate test automation
• Develop and execute automated tests (Web & Mobile)
• Perform manual tests to cover non-automated areas
• Handle bug fixing, reporting, and documentation of all test results
• Coordinate with teams and product owners for test optimization and requirement analysis
• Conduct component tests, system tests, and migration tests
• Create monitoring reports and error analyses according to process guidelines
• Participate in the team for Deutsche Bahn’s new DB Navigator app during the software reorientation; responsible for new workflows, modern design, and replacing the old systems
• Tools: Appium, Selenium, Cucumber, Android Studio, IntelliJ, GitLab, Instana, Java, iOS, CSS