Every project and assignment I have delivered, across industries: Architectures designed, systems integrated, and solutions shipped. Clients are described by industry rather than name out of respect for confidentiality.
IT consulting and IT services · 3 months · 2026 (ongoing)
SAP BTP Manage Recurring Journal Entries Side-by-Side Extension for S/4HANA
SAP BTP Solution Architect
This project involved replacing a manual recurring journal entry process in SAP S/4HANA by providing a Fiori application that enables finance teams to configure, schedule, and track recurring postings with flexible recurrence rules. The solution integrates a structured approval workflow based on the four-eyes principle and automatically generates upcoming posting dates with status tracking. The application was deployed to SAP BTP Cloud Foundry, embedded in SAP Work Zone, secured via SSO, and runs on a schedule using the SAP BTP Job Scheduling Service.
Architected the SAP BTP CAP/Fiori extension.
Built the full recurrence engine.
Delivered rapid prototyping via agentic coding.
SAP BTP
SAP CAP
Fiori Elements
Cloud Foundry
Job Scheduling Service
IT consulting and IT services · 1 month · 2026
BTP Deferral Posting App to Automate Monthly Accrual Journal Entry Posting for S/4HANA Supplier Invoices
SAP BTP Solution Architect
This project involved automating the monthly posting of prepaid expense deferrals for supplier invoices in SAP S/4HANA Cloud, replacing a previously manual month-end closing activity. The solution reads deferral-relevant invoices via the SAP OData API, calculates pro-rata monthly amounts, and validates results against existing postings to prevent duplicates. Accruals are posted directly into S/4HANA via the SOAP Journal Entry API, triggered on a schedule through the SAP BTP Job Scheduling Service.
Built the Node.js app on Cloud Foundry.
Implemented the full deferral logic.
Deployed to Cloud Foundry with clean config.
SAP BTP
Node.js
Cloud Foundry
OData
SOAP
Information and communication technology · 1 month · 2026
Pre-Sales / PoC: SAP BTP Multi-Tenant SaaS Solution for External Warehouse Management
Pre-Sales Technical Architect
This pre-sales project involved assessing the client's external warehouse management process and defining requirements for a cloud-based solution with real-time integration to an external inventory system. We designed a multi-tenant SaaS application concept on SAP BTP enabling external suppliers to manage warehouse products through a Fiori Elements UI, backed by a CAP service proxying the S/4HANA backend. The application was embedded into SAP Build Work Zone with automated per-tenant onboarding, and the concept was presented to support the acquisition of the implementation project.
Architected the multi-tenant SaaS application.
Automated the SaaS subscription lifecycle.
Delivered the live customer demo.
SAP BTP
SAP CAP
Multi-Tenant SaaS
Pre-Sales
Insurance · 1 month · 2026
Pre-Sales / PoC: Cost Allocation Posting Side-by-Side S/4HANA Cloud Extension on SAP BTP
Pre-Sales Technical Architect
This pre-sales project involved assessing the client's existing manual cost allocation process in SAP S/4HANA and defining requirements for an automated, configurable rebooking solution. We designed a cloud application concept enabling finance teams to configure allocation rules with percentage-based distributions, executable directly from a Fiori app or triggered automatically. The application was embedded into a demo SAP BTP Work Zone environment with live S/4HANA integration for real-time demonstrations.
Architected the SAP BTP application.
Built the cost allocation workflow.
Delivered rapid prototyping via agentic coding.
SAP BTP
SAP CAP
Fiori Elements
Pre-Sales
Insurance · 8 months · 2025-2026
Pre-Sales: Concept for a SAP BTP Multi-Tenant SaaS Solution for a Credit Insurance Application
Pre-Sales Technical Architect
This pre-sales project involved workshops to assess the client's business processes, requirements, and integration needs, including evaluation of a client-specific API within the cloud architecture. We developed a detailed cloud application concept covering architecture, cloud services, integration design, and comprehensive documentation of business processes and rules. The proposed solution and key findings were presented in several meetings with the customer to support the acquisition of a potential implementation project.
Designed the multi-tenant SaaS architecture.
Built the demo-ready mockup app.
Presented the concept to the customer.
SAP BTP
Multi-Tenant SaaS
Pre-Sales
SAP CAP
Building industry · 5 months · 2025-2026
Creation of a modern REST API for retrieving data from S/4HANA on-prem
SAP BTP Solution Architect
The goal of the project was to create a modern customer portal in Salesforce to give customers real-time access to information such as orders and invoices. In addition to developing the portal, a central REST interface for data exchange was developed that retrieves all necessary data from the S/4HANA on-prem system, transforms it, and makes it available to the portal.
Designed the end-to-end SAP BTP architecture.
Built the central REST API.
Built the event-driven Event Mesh layer.
SAP BTP
Cloud Integration
Event Mesh
REST
Salesforce
Telecommunications · 3 months · 2025
Data exchange and integration between S/4HANA Cloud and Amazon AWS S3 Storage
Integration Specialist
The goal of the project was to implement an inbound and outbound integration scenario with S/4HANA Cloud based on SAP Cloud Integration. Service entry sheets are processed and saved in S/4HANA Cloud for the inbound channel, while for the outbound scenario, purchasing orders are retrieved from S/4HANA Cloud, transformed, and uploaded to an AWS S3 storage bucket.
Secured the integration with mTLS.
Built the data transformation logic.
Integrated the S/4HANA APIs.
S/4HANA Cloud
AWS S3
Cloud Integration
mTLS
Business services · 7 months · 2025
Integration of master data between S/4HANA Cloud and a custom CRM system
Integration Specialist
The goal of the integration project was to ensure the exchange of master data between SAP S/4HANA Cloud and a customer-specific CRM system, as well as an existing fleet solution. With the help of SAP Cloud Integration, bidirectional integration scenarios were developed and implemented to ensure correct data exchange.
Connected systems via REST, OData, SOAP.
Built the end-to-end integration flows.
Delivered testing and ongoing support.
SAP Cloud Integration
OData
Groovy
Master data
IT consulting · 1 month · 2025
Workforce Integration between SAP SuccessFactors and SAP S/4HANA Cloud using SAP MDI
SAP BTP Solution Architect
The goal of the project was to integrate the SAP SuccessFactors and SAP S/4HANA Cloud systems using SAP BTP and the SAP Master Data Integration (MDI) solution. As a result, customer employees, their roles, and absences & availabilities are continuously replicated from SAP SuccessFactors to SAP S/4HANA Cloud, enabling further project, planning, and resource processes to be carried out in SAP ERP.
Configured the full SAP MDI landscape.
Led the initial data transfer.
Provided ongoing error analysis.
SAP MDI
SuccessFactors
S/4HANA Cloud
SAP BTP
Public sector · 9 months · 2024-2025
SAP Service Cloud V2 implementation, integration with SuccessFactors and S/4HANA Cloud, and BTP/CAP app development
Solution Architect
Our customer optimized, digitalized, and automated its service process with the help of the SAP Service Cloud V2 solution, gaining time savings, increased efficiency, and better documentation and auditing. Intelligent integration across SAP systems (SuccessFactors and S/4HANA Cloud) enables seamless and automated data exchange and increases data quality while saving time.
Owned architecture and solution design.
Built the UI5 extension app.
Delivered go-live on time and budget.
Service Cloud V2
UI5
S/4HANA Cloud
Architecture
Electronics · 2 months · 2024
Extension and adjustment of a UI5 Mobile Application
Frontend Developer
Our customer uses a mobile app with barcode-scanner functionality to optimize logistics processes, postings, and other workflows. The project task was to expand necessary functions and optimize existing ones, complemented by UI/UX consulting and error analysis.
Advised on UI/UX and process design.
Built extensions to the UI5 app.
Handled error analysis and fixes.
UI5
Mobile
Frontend
Services · 3 months · 2024
Integration of Sales Orders to SAP S/4HANA Cloud
Integration Specialist
The goal of the project was to replicate purchase orders from an individual web shop solution to SAP S/4HANA Cloud. The integration of both systems is based on SAP Cloud Integration, with order data transformed using Groovy scripting and XSLT.
Built the dedicated integration flow.
Transformed order data with Groovy/XSLT.
Integrated the S/4HANA Sales Order API.
SAP Cloud Integration
Groovy
XSLT
S/4HANA Cloud
Pulp & paper industry · 1 month · 2023
Setup of SAP BTP and SAP Cloud Integration Suite
BTP Cloud Administrator
Provisioning, setup, and initial configuration of the SAP Business Technology Platform (SAP BTP) and the SAP Cloud Integration Suite (CPI) environments. These cloud environments serve as a central platform for data exchange between SAP and non-SAP products and for mapping essential business processes.
Provisioned the SAP BTP instance.
Configured dev, test, and prod environments.
Supported the team on BTP questions.
SAP BTP
Cloud Integration Suite
Cloud Administration
Construction machinery · 1 year 5 months · 2022-2024
Creating an integration solution between Salesforce and S/4HANA Cloud using SAP BTP/CI
Integration Specialist
To replicate master data, documents, and assets such as products and equipment, an integration solution was developed between Salesforce and SAP S/4HANA Cloud using SAP BTP and the Cloud Integration Platform. This exchanges relevant business data between the two systems and ensures comprehensive, fully integrated work for the business department. An S/4HANA Cloud Fiori app was also developed for booking materials in the logistics area.
Delivered the overall integration solution.
Supported requirements analysis and troubleshooting.
Built the S/4HANA Fiori app.
SAP BTP
Salesforce
Fiori
Cloud Integration
Manufacturing · 1 year 1 month · 2022-2023
CRM Integration between Microsoft Dynamics and S/4HANA Cloud
Integration Specialist
To replicate CRM master data such as business partners and contacts across systems, an integration solution was developed between Microsoft Dynamics CRM and SAP S/4HANA Cloud using SAP BTP and the Cloud Integration Platform. This exchanges relevant business data between the two systems and ensures comprehensive, fully integrated work for the business department.
Delivered the integration solution.
Supported requirements analysis.
Provided technical consulting and troubleshooting.
Microsoft Dynamics
S/4HANA Cloud
Cloud Integration
Wind energy · 4 years 1 month · 2021-2025
B2B e-commerce solution for spare parts with SAP Commerce Cloud, SAP BTP, and S/4HANA
Solution Architect
Development and extension of a B2B e-commerce web store for marketing products such as spare parts and digital products. The main objective was the technical implementation of customer-specific extensions and customizations within the SAP Commerce Cloud platform, integrated into the customer's existing IT landscape between SAP Commerce Cloud and SAP S/4HANA using SAP BTP.
Led architecture, design, and development.
Analyzed requirements and demoed PoCs.
Served as main technical contact.
SAP Commerce Cloud
S/4HANA
SAP BTP
B2B
Information technology · 2 months · 2021
SAP Service Cloud integration with SAP Cloud Platform and LDAP
Integration Specialist
The task was to use the existing customer LDAP system and its master data to perform automatic ticket assignment, routing, and processing in the SAP Service Cloud. This required implementing individual integration flows to replicate this master data.
Led integration development and coordination.
Built the required integration flows.
Implemented data mapping in OData/Groovy/XML.
SAP Service Cloud
LDAP
Integration Flows
Mechanical engineering · 4 months · 2021
SAP Integration between SAP Cloud for Customer and SAP ERP
Integration Specialist
The goal was to make valuable master data from the ERP usable in other cloud solutions as well. To achieve this, it was necessary to integrate the systems via the SAP Cloud Platform.
Connected SAP CRM to SAP ERP.
Extended IFlows for master data replication.
Enabled ERP data reuse in the cloud.
SAP C4C
SAP ERP
Cloud Platform Integration
Mechanical engineering · 4 months · 2020
Portal solution for service tickets with SAP Commerce & SAP Service Cloud (C4C)
Senior Consultant, SAP Commerce
Development and implementation of a self-service portal solution on the SAP Commerce platform to increase service quality and customer satisfaction in the B2B customer segment. Integration between SAP Commerce, SAP Service Cloud, and SAP ERP tied the portal directly into existing service processes.
Integrated Commerce, Service Cloud, and ERP.
Led development and stakeholder workshops.
Delivered a self-service portal.
SAP Commerce
SAP Service Cloud
SAP ERP
Mechanical engineering · 1 year 1 month · 2020-2021
SAP Commerce Cloud self-service portal solution for spare part identification and integrated ordering
Senior Consultant, SAP Commerce
Led architecture and development of a B2B spare-parts ordering portal on SAP Commerce Cloud, seamlessly integrated with the customer's SAP ERP system.
Led architecture, setup, and development.
Delivered full-stack development on SAP CX.
Ensured seamless SAP ERP integration.
SAP Commerce Cloud
SAP ERP
B2B
Mechanical engineering · 5 months · 2019
Development of a mobile app to display equipment and spare parts from SAP ERP
Senior Developer, SAP Commerce
Built an offline-capable, cross-platform mobile app to visualize equipment and spare parts from the customer's SAP ERP backend, using Apache Cordova and Vue.js.
Built the offline-capable mobile app.
Built with Cordova, Vue.js, and REST.
Delivered the app to completion.
Apache Cordova
Vue.js
Mobile
REST API
Financial services · 4 months · 2018
Development of a pilot in the field of BPM and Robotic Process Automation
Senior Consultant, Pega CRM
Creation of an end-to-end business process for system-based handling and processing of mortgage applications and their settlement in legacy applications. The solution combined Pega 7 web services with robotic process automation to bridge modern and legacy systems.
Documented requirements for the gap analysis.
Designed the target business process.
Implemented Pega 7 web services and RPA.
Pega 7
BPM
RPA
Banks · 2 months · 2018
Creation of a solution for automated processing of credit applications
Solution Architect
Creation of an MVP for automated, cross-system processing of credit applications via an SMTP interface. The end-to-end business process integrated an SMTP email server, RESTful services, and MSSQL and Oracle databases.
Evaluated requirements and scoped the MVP.
Configured the platform and interfaces.
Built the end-to-end SMTP/REST process.
SMTP
REST
MSSQL
Oracle
Insurance · 6 months · 2018
Development of customer-specific requirements, system analysis, and performance tuning
Senior Consultant, Pega CRM
Consulting and support of the customer in the after-go-live phase, including development of a function for mass deletion of master data, performance analysis, system tuning, and bug fixing. This included troubleshooting and ongoing support as the customer's primary contact for system and product questions.
Built a mass data deletion feature.
Performed troubleshooting and performance tuning.
Served as ongoing support contact.
Pega
Performance Tuning
Support
Insurance · 1 year 4 months · 2016-2017
Introduction of a CRM solution to optimize the sales process
Lead System Architect
Introduction of a CRM solution on the Pega 7 platform to optimize the sales process. The integrated overall solution supports the sales department in acquiring potential members more quickly and efficiently, with intelligent business processes helping manage complex processes such as premium payment.
Led requirements gathering and solution design.
Owned infrastructure and system integration.
Managed the near-shore team to go-live.
Pega 7
CRM
Team Lead
Commercial vehicles · 1 year 4 months · 2015-2016
Implementation of a global business process for the optimized development of spare parts
Lead Developer, IBM BPM
Development, modeling, and implementation of a global business process in the IBM Business Process Manager Suite for improved coordination and optimized production of components for automotive manufacturing. As team leader and deputy to the Enterprise Architect, I was responsible for infrastructure, interfaces, and deployment releases across the initiative.
Led the team as deputy architect.
Programmed components in BPMN and JavaScript.
Coordinated global process optimization.
IBM BPM
BPMN
JavaScript
Banks · 1 year 1 month · 2014-2015
Implementation of a new customer business process
Consultant, IBM BPM
Implementation of a business process for the automated and more efficient creation of new customers using the platform solution IBM Business Process Manager. The solution modeled and programmed process components in BPMN, JavaScript, and Java, and was supported through deployment and go-live.
Modeled processes in IBM BPM 8.
Programmed components in BPMN, JS, Java.
Supported deployments and bug fixes.
IBM BPM
Process Modeling
Java
Software · 2 years 1 month · 2012-2014
Java developer, data center administrator, student mentor
Developer
During my first job after graduation, I was involved in several sub-projects: The main one was developing an intelligent application to make the daily business of support easier and more efficient. In parallel, I took over administration of the data center, and later supervised students to ensure their education and training.