WebRTC Experts in Germany

• Acted as technical consultant to optimize multi-layer ensemble models combining ResNet, CNN-BiGRU-Attention, and XGBoost.
• Guided implementation of a Logistic Regression meta-learner to solve class imbalance problems, achieving 92.86% accuracy and 0.9644 AUC on PTB-XL and Chapman-Shaoxing datasets.

• Bootstrapping a CloudOps team and building a multi-cloud provider backend for a low-code Internal Developer Platform (IDP) with env zero

• Introducing user story mapping, ADRs, milestones, and backlog management

• Designing and developing core APIs, setting up CI/CD pipelines, OpenTofu/Terraform scripts

• Representing and communicating the team with third-party stakeholders (e.g. env zero)

• (Cross-)team coaching on DevOps, software design, Terraform, Golang, and agile practices

• Development of an accessible, responsive website based on Figma designs for a major sports event in compliance with WCAG, BITV, and EN 301 549
• Technical planning and setup of the tool stack with Vite, Playwright, Docker, and GitLab CI
• Worked on two existing projects (Vue.js & Nuxt), with a focus on bug fixing, accessibility audits, and new feature development
• Collaboration with design and QA to consistently implement accessible UI patterns
• Consulting on improving existing frontend architectures with regard to accessibility, performance, and maintainability

From Crude to Crafted: Refining Participatory Design Data into Stakeholder-Ready Outcomes

• Architected a production Document AI platform using Retrieval Augmented Generation (RAG) over 1,500+ participatory design artefacts to answer historical project queries with grounded responses.
• Designed LLM evaluation combining RAGAS, custom evaluation metrics and human-in-the-loop (HITL) validation workflows to evaluate factual grounding, response quality, and prompt performance.
• Built a React, TypeScript, and D3.js frontend for interactive exploration of AI-generated insights.
• Implemented input layer LLM safety controls and Guardrails, including PII redaction and foul language filtering.

• Set up the new digitization strategy.
• Using Camunda as a process engine, a new way of handling batch and dialog tasks is created.
• In close cooperation with the business department, the individual processes are created and put into production.
• Forms for controlling manual interventions, e.g. when adjusting applications, are implemented.
• Gradual migration of old code from IBM WebSphere to JBoss.
• Skills: Arquillian, Camunda, Initiative, Empathy, Hibernate, Jackson, Java/JEE, JBoss, Jersey, JSON, JUnit, Openness to criticism, Willingness to learn, REST, Teamwork, WebServices.

• Defined a generic, universal system platform for XR (AR, VR) use cases as part of the European IPCEI initiative
• Evaluated available options for backend, streaming and client implementations
• Developed PoC implementations and conducted technical evaluation of potential components
• Led the development team and defined the target system architecture for a complete end-to-end solution
• Designed and integrated GenAI PoCs (LLM, time series, prediction, agents)
• Researched NeRFs and Gaussian Splatting for XR content creation and analyzed methods to measure and reduce system latencies
• Worked on GPU scheduling, CUDA and related topics
• Defined and implemented backoffice and end user dashboards using Grafana and Superset
• Used Jaeger tracing to analyze specific events
• Defined a GenAI-based automatic alerting feature for specific events and event clusters with KPI values
• Integrated AR/VR/XR IoT devices
• Collaborated with business development and UX teams in a parallel design thinking track to align technical and customer journey scopes
• Integrated the new services and platform into existing telco environments and analyzed tools like Camara for partial integration and handover scenarios

• Manage end-to-end delivery of software projects across healthcare, gaming, and communication domains.
• Serve as Project Manager, Product Owner, and Scrum Master for multiple Agile teams.
• Oversee scope definition, sprint execution, and delivery tracking using Jira and Confluence.
• Design technical architectures and API strategies integrating Twilio, CRMs, and VoIP systems.
• Lead AI/ML projects implementing recommendation engines and automation workflows.
• Support pre-sales with effort estimation, technical documentation, and proposal reviews.

• Development and launch of a browser-based platform for camera streaming, augmented reality (AR), and visual computing
• Device-independent camera streaming for smartphones, tablets, desktop PCs, as well as VR and AR headsets
• Ensuring GDPR-compliant hosting in Open Telekom Cloud and other sovereign cloud providers
• Intuitive visual and collaborative features to boost efficiency and seamlessly integrate into existing enterprise software

• Project management, project controlling, client communication, stakeholder management, resource planning and procurement, proposal planning (change requests)
• Setup of a central data exchange platform (Nextcloud) for storing high-resolution terrain model data
• Consulting, implementation and standardization of laboratory equipment network clusters across multiple locations with connection to a central data exchange platform
• Requirements gathering and gap analysis for providing an internet-based data exchange platform, including end-to-end encryption and malware scanning
• Migration of a library management system to a new 3-tier architecture
• Expansion of a development and test environment to include acceptance test and production environments for a specialist application (electronic information system), including interfaces based on a 3-tier web application and development of a technical security concept
• Consulting project to replace various legacy systems with a 3-tier web architecture, including data migration
• Consulting project for a software simulation application considering IT security measures and BSI standards, as well as requirements gathering for a future IT infrastructure
• Upgrading the networks of a telecommunication system for building a WebRTC solution, as well as implementing network transitions via an SBC cluster and unifying the telecommunication system for cross-site collaboration
• Setup of a 3-tier production and testing environment to replace an existing specialist application and development of an information security concept

• Led a team of 6 software engineers to develop and maintain an AI-driven healthcare platform, enabling automated diagnostics and prescriptions based on real-time ECG data analysis
• Designed and developed a robust Revenue Cycle Management (RCM) system, integrating HL7 and FHIR APIs to enable seamless interoperability, real-time data exchange, and HIPAA-compliant data handling, improving billing efficiency, claim processing, and regulatory adherence in healthcare operations
• Migrated a legacy monolithic application to a scalable microservices architecture, enhancing system modularity, scalability and maintainability while implementing key design patterns such as Strangler, Database-per-Service, API Gateway, Saga and CQRS for efficient service communication and transaction management
• Architected and led a C# 9/.NET 6 microservices ecosystem handling hotel reservations, payments, and loyalty programs, enabling 99.99% uptime across 10+ services
• Defined OpenAPI/Swagger contracts and auto-generated client SDKs, reducing front-to-backend integration time by 50%
• Containerized each service with Docker and orchestrated deployments via Kubernetes, slashing release lead time from days to hours
• Designed PostgreSQL schemas optimized for high-volume transactional workloads and implemented Redis caching layers to accelerate read-heavy endpoints by 80%
• Built Kafka streaming pipelines for real-time availability updates and audit logs, processing 2 million+ events per hour with end-to-end delivery guarantees
• Implemented unit and integration tests for React applications using Jest and React Testing Library, ensuring 80%+ test coverage, improving component reliability, and preventing regressions
• Defined and deployed AWS cloud infrastructure using Terraform, while containerizing and orchestrating microservices with Docker and Kubernetes, improving automation and system scalability
• Built a scalable full-stack booking application using React 18 and Django REST Framework, integrating Celery and Redis for asynchronous task processing, while deploying on GCP with Cloud Run and Firestore, enabling real-time scheduling, payment processing, and automated notifications
• Mentored junior developers through code reviews, pair programming, and knowledge-sharing sessions, improving team efficiency by 30% while maintaining comprehensive API documentation using Swagger/OpenAPI

• Led the entire product organisation through complete rebuild of the product resulting in a 25% increase in engagement, considerably greater technical stability and a reduction in server costs.
• Product Manager for three teams: Media (webrtc), Cockpit (static functionality) and World (rendering engine).
• Coached and mentored the product organisation to become outcome-oriented and active in shaping their way of working.
• Led the transformation of the product organisation to start scaling. Implemented a culture of empowerment and discovery.

• Developed an AI application with locally running LLMs and document processing in FastAPI with RAG, marketed to VB
• Stack: TypeScript, Convex, TanstackStart, Python, FastAPI, LightRAG