Christian W.
Product Owner / DevOps / AI
Experience
Feb 2024 - Present
1 year 7 monthsBerlin, Germany
Interim Business Analyst / Product Owner
Bundesdruckerei GmbH (Projekttätigkeit über FourEnergy GmbH)
- Initial assessment of requirements using a business value prioritization framework
- Identifying issues and gathering and evaluating requirements using UML, BPMN and design thinking methods through interviews and workshops for iterative analysis
- Using user story mapping in Miro to visualize and align functional requirements (e.g. correct transmission of all application data and attachments to the specialist system) and non-functional requirements (e.g. complete and verifiable deletion of an applicant's data) with stakeholders
- Proactive stakeholder management with internal and external stakeholders from government agencies, departments, organizations and companies
- Creating status reports to transparently communicate project progress and upcoming tasks
- Responsible for a REST-based integration solution (middleware) for secure data exchange between core systems and external specialist applications; ensuring stability and performance in production
- Supporting product owners in prioritizing backlog requirements and in product discovery
- Communicating plans to internal and external stakeholders and taking over interim product owner responsibilities during staff changes
Jan 2024 - Dec 2025
2 yearsEnterprise AI Chat for Highly Sensitive Data
VaultLabs.ai
- Designing and developing VaultLabs.AI, a highly secure AI chat solution for businesses and organizations to process strictly confidential data
- Focusing on zero-knowledge data architecture, local AI model hosting, and compliance with German data protection regulations to ensure digital sovereignty
- Strategically focusing on open source and digital sovereignty, including active contributions to the open-source community
- Architecting and implementing a zero-knowledge platform with end-to-end encryption to guarantee data confidentiality throughout processing
- Integrating local self-hosted models to ensure data is processed only on-premises
- Implementing granular role-based access control (RBAC) and detailed audit trails for compliance
- Ensuring a responsive design and seamless user experience across desktop, laptop, and mobile devices using a modern web framework
- Developing and optimizing retrieval-augmented generation (RAG) pipelines to enrich large language models (LLMs) with specific knowledge for generating accurate and relevant responses
Jan 2024 - Dec 2024
1 yearAI-Powered Code Analysis and Correction
FixThisBug.de
- Developing a system to generate multilingual, context-aware error descriptions (German/English) to provide users with precise and understandable feedback and support effective bug fixing
- Developing and operating Supabase as a central data platform to support storage and management of analysis and correction data
- Implementing Docker containers to standardize development, testing, and production environments, leading to more reliable platform deployments
- Designing and implementing automatic code correction mechanisms with syntax highlighting to provide clear visual feedback and maximize clarity of corrections
- Implementing a real-time code analysis engine using AI models for automatic error detection and optimization suggestions
- Integrating LLM backends (Ollama and vLLM) for flexible and high-performance code analysis and correction to improve efficiency and accuracy
- Building an interactive learning component with a knowledge base to prevent errors and support long-term, sustainable code quality improvement
- Supporting a wide range of programming languages to provide a versatile, universally applicable code analysis and correction platform
Apr 2022 - Oct 2023
1 year 7 monthsBerlin, Germany
Interim Product Owner
Bundesdruckerei GmbH (Projekttätigkeit über Questax AG)
- Aligning and developing an overarching product vision with other product owners in the Federal Portal project and with the client using the Product Vision Canvas to sustainably evolve the IT service portfolio
- Capturing, documenting, and consolidating requirements using UML and BPMN for detailed modeling of the "process management" subproduct within the implementation of the Online Access Act (OZG)
- Organizing and facilitating regular workshops as part of product discovery with client stakeholders from various federal agencies to present, discuss, and validate project results
- Using user story mapping in Miro to visualize and align product ideas with the client and end users
- Integrating design thinking methods for continuous analysis, development, and professional validation of interactive prototypes against functional goals using real use cases from production in close cooperation with UX/UI designers
- Preparing results as decision-making materials and recommendations for the functional specification and system architecture
- Conducting quarterly reviews of goals and expectations with the client, development team, and management to analyze deliverables, identify improvement opportunities, and ensure quality standards throughout the project
- Advising the client and internal stakeholders regularly on prioritizing new and changed requirements and aligning them with the long-term product vision
Jan 2020 - Present
5 years 8 monthsDortmund, Germany
Founder and Managing Director (part-time)
Weinbörner UG
- Providing part-time consulting and support for companies in AI, data integration, and business analytics
- Developing customized solutions for automated ETL processes of business data and subsequent AI integration for data analysis
- Planning, designing, and building a platform for AI-assisted bug fixes
- Launching a platform for secure AI usage for highly sensitive and private data
Jun 2019 - Feb 2022
2 years 9 monthsDortmund, Germany
Product Owner
IHK-GfI mbH
- Responsible for developing the web app prototype and testing it with pilot customers, including planning and conducting functional tests to evaluate functionality and user acceptance, as well as continuously adjusting the prototype based on test results and feedback
- Designing the product vision and strategy in workshops with pilot customers and the development team using User Story Mapping and Product Vision Canvas to modernize the existing IT service portfolio
- Presenting initial product ideas in the form of product pitches and demonstrating the prototype at the C-level of IHK GfI and pilot customers
- Regularly validating designs and prototypes through functional tests and user feedback using design sprints to continuously improve usability and functionality
- Using Miro and Business Model Canvas to validate and continuously adjust the product idea with stakeholders, especially technical experts, subject matter experts, and pilot customers from the chambers of commerce, in design thinking workshops
- Shaping the business architecture by creating functional specifications and the application architecture by defining use cases
- Planning and conducting improvement and feedback workshops with end users, as well as targeted stakeholder communication with subject matter experts and decision-makers, including using User Story Mapping to collect requirements and feedback
- Designing and implementing an AI use case for an automated approval process of auditors’ time reports using machine learning
Feb 2015 - May 2019
4 years 4 monthsMülheim, Germany
Senior Project Associate
ALDI International Services GmbH & Co. oHG
- Creating functional specifications and use cases to evolve the product portfolio and turning them into user stories and test cases as guidelines for the development team in a hybrid project combining waterfall and agile methods
- Modeling and visualizing functional specifications using UML and BPMN to clearly represent the system architecture and processes for precise communication and technical planning
- Documenting customer feedback, requirements, and functional specifications in Confluence to ensure a centralized and transparent information base for the entire project team
- Conducting the international rollout of the mobile app and the associated user training and workshops
- Validating requirements together with customers through regular feedback sessions to ensure comprehensive coverage of customer needs
- Coordinating external development partners for interface development and ensuring compliance with quality standards and IT security guidelines
- Introducing quality improvement measures with the external development partner to reduce errors and bugs in the application
- Conducting workshops with central procurement and international branches to envision and plan the next product release
Jan 2013 - Jan 2015
2 years 1 monthDortmund, Germany
Embedded Software Developer
Fachhochschule Dortmund
- Designing and developing a system for data collection and transmission via powerline communication
- Implementing data integration protocols for heterogeneous sensor systems
- Developing data models for efficient transmission of sensor data
- Performing data analysis to optimize transmission quality
Jun 2010 - Dec 2012
2 years 7 monthsDortmund, Germany
Software Developer
Fraunhofer Institut für Software und Systemtechnik
- Implementing data integration interfaces for medical devices in the AAL (Ambient Assisted Living) sector
- Developing data processing workflows for health data
- Integrating heterogeneous data sources into a central platform
- Maintaining and servicing the Embedded Linux environment
Summary
As a Product Owner with a strong DevOps background and over 10 years of experience, I bridge product strategy and technical excellence. I translate complex requirements into stable and scalable cloud infrastructures (GCP, AWS) and automate their deployment using IaC (Terraform) and CI/CD pipelines. My strength is taking end-to-end responsibility for innovative AI solutions, from concept to secure operations.
Languages
German
NativeEnglish
AdvancedEducation
Sep 2010 - Sep 2014
Fachhochschule Dortmund
Bachelor of Science · Technical Computer Science · Dortmund, Germany · 2.0
Certifications & licenses
Product-led Certification Course
Mind the Product
Professional Scrum Product Owner I, PSPO I
Scrum.org
Agile Tester, ISTQB Certified Tester Foundation Level Extension Agile Tester
International Software Testing Qualifications Board
Certified Professional for Requirements Engineering, CPRE FL
International Requirements Engineering Board
Certified Tester, ISTQB Certified Tester Foundation Level
International Software Testing Qualifications Board
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