Fleet Management Experts in Germany

• Industry: Insurance, Trade, IT
• Customers & Projects: Consulting and selling insurance and similar services
• Main tasks: Insurance consulting (health insurance, retirement planning, wealth building); commercial services, inside and field sales; sales data analysis and forecasting; customer consulting and support; opening a new sales headquarters for private and business customers; business development & innovation management; business use case development; process optimization; stakeholder management; team leadership and training; preparation and delivery of trainings;
• Technologies used: Microsoft Office 365, Microsoft Teams, Jira, Draw.IO, Camunda 8, Java (8, 17,21,25), Git, Spring Boot, Spring Batch, Spring Data REST, Spring Web, Spring Security, J-Unit, Playwright, Lombock, Vaadin, H2, PostgreSQL (16, 17 18), pgAdmin, Docker, LLMs, JasperSoft Studio, JasperReports

• Ride-sharing and bus platform, live and fully functional. Backend with Spring Boot 4.1 on Java 21, PostgreSQL with Flyway, and Testcontainers integration tests. Hosted in my own AWS account (ECS Fargate, ALB, ECR, IAM Least-Privilege) with CI/CD via GitHub Actions and OIDC federation without static credentials. Development fully AI-supported with Claude Code, including custom skills and project-specific memory. Spring Boot · Java 21 · PostgreSQL · Flyway · Docker · AWS ECS/ALB/ECR · CI/CD · GitHub Actions · Claude Code

• Interim leadership responsibility for realigning the entire leadership organization – away from classic target setting and solution specification toward a teal-oriented organization with clear responsibility for each individual employee.
• Stabilization of production processes and reduction of the backlog in all customer projects.
• Building up the necessary material inventory (agreed with end customers by contract) – eliminated backlogs and special runs, achieved 2 weeks of material inventory.
• From the start of the assignment, also took over overall technical responsibility for Research & Development (R&D).
• In addition to the CSO/COO role, took over responsibility for controlling and finance in the last 9 months.

• Available for short-term assignments in assistance and purchasing
• Focus on executive assistance, project support, and operational relief
• Quick to adapt to new company structures

traigo is VTG's digital rail logistics and fleet management platform. It processes large volumes of telemetry, mileage, geofence, sensor and wagon-movement events in near real time and provides operational services for rail logistics customers across Europe.

As part of Team Customer Selfcare, I worked on the design, implementation, optimisation and operation of large-scale backend services and event-driven processing pipelines — covering both feature development and operational ownership of business-critical production systems. I also regularly acted as first responder for production incidents, data inconsistencies and performance investigations across multiple distributed services.

• Design and implementation of event-driven backend services.
• Migration and replacement of legacy processing pipelines.
• Development of replay / rebuild mechanisms for large event datasets.
• High-throughput asynchronous event processing on SNS / SQS.
• Database and query optimisation for PostgreSQL and DynamoDB.
• Design of scalable read / write models and aggregation pipelines.
• Production troubleshooting and operational support.
• Performance tuning and infrastructure scaling.
• Design and stabilisation of integration and system tests.
• Technical concepts, architecture documentation, and cross-team collaboration.
• Support the further development of existing GitLab CI/CD pipelines

Geofence & Wagon Stay Processing

• Algorithm to detect vehicles within geofences (entry, exit, dwell time).
• Event sourcing with guaranteed chronological order within the affected time window.
• Refactored geofence event and wagon-stay processing logic for performance.
• Resolved race conditions and event-ordering problems in distributed services; server-side filtering, aggregation and optimised query pipelines.
• Repair and replay tooling for corrupted or inconsistent movement data.

Fleet Metadata & Mileage

• Modernised the service; migrated storage from DynamoDB to PostgreSQL to improve traceability and accelerate new features.
• Scalable mileage aggregation and replay mechanisms.
• Read / write models and optimised queries for high-volume mileage calculations.

Sensor & Telematics Integration

• Integrated telemetry and sensor processing pipelines.
• Snapshot and state-calculation logic for sensor systems.
• APIs and persistence models for wagon sensor data; data-quality improvements.
• Further development of a service using gRPC for intra-service communication.

Movement Segment Processing & Routing

• Migrated services to new movement-segment event streams.
• Built replay and rebuild tooling for segment correction.
• Optimised throughput and reliability for high-volume event processing.

Condition Monitoring & Wagon Analytics

• APIs and backend services for wagon condition monitoring.
• Brake-wear prediction processing and wagon analytics functionality.
• PostgreSQL views and optimised query models for operational dashboards.

Operational Reliability - First Responder

• Investigated production incidents and distributed-system failures; DLQ analysis, replay and operational recovery.
• Tuned database performance and AWS infrastructure under production load.
• Improved observability, monitoring and operational tooling.
• Supported rollout strategies, monitoring and post-deployment stabilisation.

AI • Enterprise SaaS • Product Strategy • Product Discovery

Led product design for enterprise SaaS, AI-powered and customer-facing products.

• Defined product strategy from discovery to delivery
• Designed complex workflows, design systems and scalable UX
• Led UX research, product discovery and stakeholder workshops

• Temporary support for several mid-sized companies in the Osnabrück area in project management
• Preparation and launch of large-scale projects with budgets starting at approx. 20 Mio. in mechanical and plant engineering
• Risk management, project definition, design management

Strategic consulting and operational optimization across the entire supply chain, with a focus on transport, warehousing and process logistics. Development of customized concepts to increase efficiency, optimize costs and sustainably improve logistics processes for companies in the retail, industrial and transport sectors.

Conducting comprehensive logistics and supply chain analyses, including the assessment of weaknesses and potential

Planning and support of transport tenders, fleet and route optimization

Development of outsourcing, warehousing and network strategies to increase profitability

Support with process digitalization, KPI management and operational implementation Interim management and practical consulting with a focus on food, fresh produce and distribution logistics

Support for restructuring and growth projects in the areas of transport & supply chain

• Support of HR processes throughout the entire employee lifecycle - from onboarding and transfers to salary changes and offboarding
• Preparation of employment contracts and references and maintenance in SAP SuccessFactors
• Management of personnel files, archiving of documents, and monitoring of deadlines for follow-up processes
• Handling inactive employment relationships
• Processing compensation-related changes - e.g. recurring payments, deductions, one-time payments, and reimbursements
• Handling work and commuting accidents and reporting them to the employers' liability insurance association
• Responding to employee questions about statutory and internal benefits such as parental leave, educational leave, or company car policies
• HR correspondence via email, mail, phone, and the HR ticketing system
• Close cooperation with HR Business Partners, Payroll, Finance, fleet management, and other internal interfaces
• Support of HR initiatives within the scope of M&A and Human Capital Management
• Ensuring compliance with legal and internal company requirements
• Creating reports and ensuring a reliable data basis

• Collection of user stories across the whole platform, leading the redesign process.
• Dashboard redesign based on user research.
• Establishing a workflow for kickoff sessions as well as planning the way of working & collaboration across several teams and disciplines.

• Development of a new generation of Spring Boot microservices for an archiving system on OpenShift, monitoring, security analyses

Stack: Java, Spring Boot, Kafka, Vaadin, OpenShift 4.x, Maven, Artifactory, Jenkins, Git/Github, GitHub Copilot, GitOps, CI/CD, Kargo/ArgoCD