Portfolio
Download Graha PortfolioOur
Capabilities
Artificial Intelligence (AI)
Technology
- Causal Machine Learning (CML)
- Large Language Modeling (LLM)
- Modern Timeseries Methodologies
Research
- Advanced Predictive Diagnostics for Identifying
Repairable and Recyclable Materials - Advanced Predictive Maintenance for Onboard
and Offboard Vehicle Systems
Development
- Onboard and Offboard Predictive Applications
Data Space
- Mobility Data Space
- Material Data Space
- Catena-X, an Automotive Data Space
Training Program for
Scientist
- Host Research and PhD Fellows
Our
Highlighted
Works
Telefonica Germany GmbH & Co
Tribe Architect in the Spotify Agile environment
The project redesigns the BSS landscape and operating model around. Improved customer experience, faster T2M, and reduced TCO through the development and implementation of a new modern Product Catalog, Order Management, CRM/CIM, Product Inventory, Billing, Charging systems. Further applications can also be added as the project progresses.
Generali Deutschland AG
Cloud Architect
The project focuses on migrating applications from monolithic to microservices on OpenShift 4.10, standardizing architecture for configuration, security, DevOps, and monitoring with tools like Splunk and Dynatrace. It involves refactoring applications for OpenShift 4.x, modernizing legacy systems for archiving and AI, replacing licensed Java Spring Boot components with open-source alternatives, and implementing a centralized vulnerability scoring system in the CI/CD pipeline for enhanced security.
ProSiebenSat.1 Tech Solutions GmbH
Enterprise Architect
The project involves defining the methodology, structure, and standardization for the Corporate & Workplace Domain, establishing an Enterprise Architecture Repository with standardized artifacts, and providing solution architecture support to align and standardize application architecture across intersecting domains.
Daimler Mobility AG
Global Enterprise Architecture, Move2Cloud, DevSecOps
The project defines Daimler Mobility AG’s global DevOps strategy, implements Cloud Readiness Assessments (CRA) for the Move2Cloud program, aligns Enterprise Architecture across key entities, standardizes DevOps tools and processes, and bridges regional architects, development teams, IT security, and infrastructure providers while fostering collaboration and knowledge sharing
Daimler Financial Services AG
Daimler Vehicle Backend (DaiVB)
This project oversees Telematics E2E management, integrating DevOps methodologies within Telematics Services, and serves as a Solution Architect for implementing connected vehicle use cases across global platforms like Mercedes-me Connect and Fleetboard. Responsibilities include designing APIs using APIgee (OneAPI Strategy), managing integration with global Telematics providers and Daimler entities, ensuring system integration across release cycles, and providing Telematics support and incident management.and standardize application architecture across intersecting domains.
Mercedes Benz Bank AG
Daimler Vehicle Backend (DaiVB)
This project manages Telematics demands and implements connected vehicle services on the Mercedes-me Connect Platform, designing and integrating APIs using APIgee (OneAPI Strategy) for use cases like Skip Loss, Geofence, and Pay-How-You-Drive. It entails E2E responsibility for DFS Telematics, coordinating with providers like Mercedes-me Connect and Fleetboard, ensuring system integration across release cycles, and overseeing Telematics supportimplementing a centralized vulnerability scoring system in the CI/CD pipeline for enhanced security.
Daimler Financial Services AG
Solution Architect
This project involves analyzing and implementing IT system landscapes, developing concepts and specifications for IT architecture and software, conducting requirements engineering, and database modeling within the Java framework. Additionally, it includes project management support, PMO activities, and serving as a Solution Architect for the Customer Portal project. Further applications can also be added as the project progresses.
REWE Informations Systeme GmbH
Senior Consultant, Professional Project Services Technical Architect and Enterprise Developer
This project involves implementing and managing REWE’s Sales Application Management (SAM) system, including WebSphere configuration, front-end development with J2EE, Spring, and Hibernate, and legacy system integration. It also includes creating RESTful web services for warehouse integration using JBoss and Maven, batch development, and employing methodologies like Business Modeling and OOA/OOD, serving as a Senior Consultant and Technical Architect.
Amadeus Germany GmbH
Senior Consultant, Professional Project Services
This project involves integrating the technical architecture of a travel reservation system across airlines, consolidators, and travel agents, creating XML web services for new partners, and designing a Java framework for messaging and XML web service integration. It utilizes methodologies like Business Modeling, OOA/OOD, Scrum/Agile, and Service-Oriented Architecture (SOA).
British Telecom (Germany) GmbH & Co
Senior Billing Consultant, Professional Project Services
This project focuses on integrating the Kenan FX billing system into a legacy architecture, configuring and rolling out Kenan Databuild, and migrating billing applications to support 4-decimal calculations. It includes integrating billing reporting frameworks with ETL processes using Java, Spring, PL/SQL, and Eclipse, maintaining middleware with Tuxedo technology, and integrating a billing invoice generator module into a print house using Visual C++ and JavaScript.
1&1 Internet AG
Finance Rating & Billing, Professional Project Services
This project involves designing and developing the “Billing on Behalf” portal framework using Java technologies (JSE/JEE, Spring, Hibernate) and databases like Sybase, Oracle, and MySQL. It includes creating a Java Finance Rating & Billing framework for product and discount configuration, extracting Sybase data for BI and external providers via SOAP web services, developing JUnit modules for component and integration testing, building a portal interface with PHP, and ensuring seamless system integration through technical reviews and quality assurance.
Audi AG
Software Engineer, Produktdatenmanagement (PDM), a Product Catalogue project
As a Product Catalog System Integrator, responsibilities included analyzing, designing, and developing product data management modules, integrating solution designs, and adopting the product catalog with SOAP-based web services. The role involved implementing and managing the product catalog system through the Car-Configurator Portal, with a focus on mapping products to web service applications.
