Ruby on Rails Experts in Germany

• Led the hardware development and validation of a safety-critical 400-V battery management system (BMS) for the TOGG SUV program; performed system architecture reviews, schematic validations, EMC and reliability tests, and root cause analyses in compliance with relevant automotive standards (ECE-R10, CISPR25, ISO-26262). Coordinated cross-country EU engineering teams, customer reviews, and technical documentation to deliver a production-ready, validated system.

• Architected and integrated 22 state-of-the-art ADAS validation vehicles for BMW ADCAM and LIDAR programs at Magna Electronics; synchronized up to 26 heterogeneous sensors (LIDAR, RADAR, cameras, GNSS/INS) using PTP-based timing architectures. Defined the system architecture, HW/SW interfaces for hardware-in-the-loop (HIL) rework, sensor integration strategies, and data acquisition frameworks. This enabled scalable vehicle-level validation, improved validation efficiency by 25%, and reduced project costs by €1.45 million.

• End-to-end validation and integration of automotive radar platforms for a Daimler project at Continental. Developed automated open-loop hardware-in-the-loop (HIL) environments to accurately test target tracking KPIs, field-of-view limits, and thermal and voltage-related ECU state machines. Skilled use of a highly complex toolchain consisting of CANoe, Lauterbach Trace32, RADAR target simulators, and EMC shielding chambers for RF and system validation. Synchronized global, interdisciplinary teams to speed up troubleshooting and close critical technical gaps.

• Reconstructed and validated the product architecture of an electromechanical e-bike by integrating and troubleshooting critical subsystems (BMS, motor control, sensors, HMI, electronic locking systems). Built a comprehensive system-level test bench for functional testing, fault reproduction, and performance analysis; coordinated suppliers and implemented corrective actions to improve reliability and traceability.

• Defined the system architecture and validation strategy for a LIDAR platform developed in cooperation with Elmos Semiconductor; evaluated optical measurement concepts, SPAD detector integration, and system requirements, and created technical recommendations for product development and verification.

• Developed LabVIEW-based automation and verification software for a high-precision hydraulic and electromechanical test system for FTE Automotive; integrated NI DAQ hardware for high-frequency real-time capture of physical measurements. Developed automated test sequences, programmable endurance tests, troubleshooting routines, data logging, and analysis tools to improve test efficiency and traceability.

• Successfully delivered full engineering life cycles for well-known industrial customers (Magna, Continental, Farasis, FTE Automotive, BMW, Daimler, TOGG) – from requirements engineering and proof of concept to system integration and validation, technical documentation, supplier coordination, and user training.

• Created complex backend systems (Fastapi Python, GCP cloud functions, APIs, integration tests) using Typescript.
• Worked with firebase and firestore databases, implementing transactional operations, scheduling jobs, and migrations.
• Implemented GCP dashboards for thorough monitoring and custom alerts in case of anomaly traffic.
• Implemented Sentry for better debugging, error tracking and overall monitoring of the Next.js frontend.
• Implemented story tests for UI related testing.
• Implemented Typesense in Python Fastapi backend, for improved text based searching along with typo handlings.

Technologies: n8n, Notion, OpenAI API, Claude, MS AI Foundry, MS CoPilot Studio, MS CoPilot, LLM, Node.js, Vercel, LangGraph, PostgreSQL, pgEdge, pgvector, Docker, LangChain, Ollama, Open WebUI

• Continuous evaluation and prioritization of internal automation needs
• ~20 AI agents in active use: research, content pipelines, document processing
• 5 n8n workflows for automated data and process control
• Architecture built on the same principles as in customer projects: state management, event-driven orchestration, API integration
• Ongoing operation and further development

• Built a modular C++ 20 embedded Linux acquisition system on a Raspberry Pi, synchronizing IMU and dual-camera data streams to sub-millisecond accuracy.
• Integrated retro-reflective and contrast sensors to trigger acquisition and detect gaps between sorter rails.
• Implemented SPI & I2C sensor communication, GPIO interrupt handling with libgpiod, and CSV & JSON output.
• Designed a multi-threaded acquisition pipeline and an SPSC queue between acquisition and writer threads.
• Built a Python/HTML/CSS based web-server and validated the prototype in a DHL warehouse for defect detection.
• Documented software behavior, configuration, and results for maintainable handover and further development.

• Building a cross-functional product team to develop a super app
• Advising and mentoring to support the team and provide input (technical & soft skills)

• Environment: AWS, Ruby on Rails, GraphQL, React Native
• Penetration test for Backend, Android-App and iOS-App

• Introduction and anchoring of agile methods and mindsets in an interdisciplinary development team
• Coaching and training agile practices (Scrum, Kanban) in the context of a complex, data-based product
• Supporting and mentoring the product owner in prioritization, backlog maintenance and stakeholder communication
• Sparring partner for the product team in the further development of the product vision and strategy
• Supporting the conversion or new development of a provisioning and sales management tool
• Integration and coordination of the SAP, TYPO3 (PIM) and individual microservices systems in the backend

• Porsche ID is a unified digital identity platform providing secure authentication and seamless access across Porsche’s online services, mobile apps, and connected vehicle features
• Designed and implemented new authentication and authorization functionalities for both users and systems
• Ensured high availability, security, and performance to deliver a flawless digital experience for Porsche customers
• Technologies: Auth0, Angular, Tailwind, AWS, Terraform, Github
• Methodologies: Scrum and SAFe

• Analysis of existing microservice structures and integration into the event-driven architecture
• Design and implementation of prototypes
• Introduction of structured workflows and embedding in a solid testing strategy
• Team: small specialized team (3-5 people) from analysis to implementation readiness
• Documentation of architectural decisions and definition of interfaces
• Integration of the event-driven pipeline into the existing landscape
• Technologies: Kafka, Docker, Microservices, Event-Driven Architecture, Java, Liquibase

• Responsible project manager for complex international infrastructure projects
• Coordinator and decision-maker for IT architects in network infrastructure and software with over 100,000 users
• End-to-end project management
• Launch and implementation of initiatives
• Project management of international infrastructure projects with C-level reporting
• Leading and coordinating IT architects
• Technical project management for merger and cloud transformation
• Delivery of international software and hardware rollouts
• Implementation of IT security projects and compliance
• Work with key technologies (e.g. 5G/6G standard)
• Support of complex defense and aerospace projects (e.g. Ariane 6, Eurodrone)
• Building the healthcare and life sciences business unit
• Creating and leading internal employee trainings

• Mobile app backend development for end-customer mobile management
• Implementation of authentication methods
• Conversion of a monolith into microservices
• Operational support
• Technologies: Kotlin, Quarkus, Microprofile, Jackson, MariaDB, Redis, JSON, XML, SOAP, Maven, Git, GitLab CI, Splunk, Grafana, Jenkins, Kubernetes, Helm, Terraform, Microservices

• Contributed to the architecture design process, leading to scalable and maintainable solutions for complex projects
• Improved app performance through code optimization and implementation of efficient algorithms
• Led a team of iOS developers to complete projects on time and achieve customer satisfaction
• Implemented core design plans into complete iOS app frameworks and delegated project components to corresponding team members
• Key project: City Guide ([link]

• Unreal Engine, Unity, Virtual Reality, Augmented Reality, PHP, React, Vue, Laravel, Node.js, Flutter, Git, TypeScript, JavaScript, HTML
• Unreal Engine 5 basics
• Development of augmented reality applications with Unity
• Software documentation
• and much more

• Led 5 cross-functional teams (Product, Engineering, Data, Operations, and Design) across the transportation domain, covering carrier integration, shipment tracking, PUDO, reconciliation, and automation.
• Defined and executed the end-to-end product and integration strategy for 15+ global carriers across Europe and the U.S., ensuring unified APIs.
• Owned the carrier onboarding framework, reducing integration time by 40% through standardization, automation, and improved developer tooling.
• Partnered with major platform customers like Shopify and Wix to analyze EU merchant needs and enhance the shipping and fulfillment experience.
• Led the reconciliation automation initiative, reducing billing discrepancies by 30% and improving invoice validation speed for finance and operations teams.
• Collaborated with data analytics and operations teams to build carrier performance dashboards that improved on-time delivery rates and merchant satisfaction.
• Fostered a strong culture of cross-functional ownership, ensuring seamless collaboration between engineering, product, and external carrier partners.