• Technical lead of CIM team to assist an Ariba team to finish and release Procurement Data Warehouse, an Ariba analytics solution, SAC, Multi-Tenant App on BTP, various Java and Python microservices on AWS/Kubernetes, 18 months.
• Technical lead for project for web-based tumor documentation for research hospital, SAP UI5, SAP CAP (NodeJS), 12 months.
• Extended SAP?s Repository Based Shipment Channel to be able to ship software components, java-based service interacting with PPMS, 8 months.

Goal was: Create a subscribable service in SAP BTP which can bring a client's procurement data in SAP Ariba to the SAP Analytical Cloud for analysis and forcasting. 

Lead architect of a team of five of a workstream to create the subscription logic, backoffice tools to administer and monitor subscription and to trigger data export of the client's SAP Ariba tennant to their HANA DB container in the SAP BTP.

- Gathered requirements with client

- Developed, tested and rolled out the solution of a cancer research records database.

• Created several SAP Conversational AI chatbots with integration to SAP CP (NodeJS app on Cloud Foundry)
• Brought a data science prototype of value extraction from digital images to the cloud. The final application allows the upload of scanned documents, the automatic extraction of configurable key values, and the storing of the results including the images with weighted boxes for future audits (SAP UI5, value extraction done in python application which is wrapped in docker image and deployed on CF, persistence in S/4Hana via cloud connector).

• Specified Personas Scripting API for SAP GUI for HTML, Windows, and Java
• Implemented the scripting engine API for SAP GUI for HTML (JavaScript).
• Liaison with SAP Kernel Team to specify new ITS features needed for Personas.
• Lead of RESTful API implementation to interface backend ABAP transactions and Dynpro screens for Personas Cloud Edition (native Node.js addon in C and C++)

• Gathered requirements from customer during workshops with clients.
• Evaluated feasibility, sometimes with the help of subject matter experts.
• Estimated the development effort and justified estimates during the management approval process.
• Wrote the functional specifications and reconciled requirements with customers.
• Determined the required skill sets for development.
• Coordinated design, implementation, and unit testing with distributed development teams in India and Brazil.
• Performed design and code reviews.
• Wrote the high-level design and reviewed low-level designs.
• Implemented some features of the solution.
• Served as liaison between customer and development team during acceptance testing.
• Interviewed applicants and mentored new hires.
• Participated actively in SAP Custom Development?s Architecture Excellence Group.
• Strategized on mobile market opportunities as a member of the Custom Development Mobile Task Force for 15 months.

Key Projects:

• Entitlement Management System: Solution for a major software manufacturer to keep track of their volume customers? licenses, 10 months, lead architect of a team of 14, completely new business logic using BOPF for Business Suite integrated in SAP Sales and Distribution, UI in WD4A and FPM, entitlement rule management in BRF+.
• Work Scheduling: California State Agency, 3 months, evaluated and estimated the effort for a statewide work scheduling system, delivered a solution definition document on the basis of SAP HCM.
• Demand Side Management: Power utility, 3 months, lead architect in a team to specify and design a solution for electric utilities to administer regulator-mandated energy efficiency and demand response programs, delivered a solution definition document on the basis of SAP CRM.
• Catalog Management: Major pharmaceutical distributor, 4 months, architect, part of the specification phase for a solution to produce and distribute product price lists to 100,000 customers, final solution kept up to 2 billion records.
• Telco Tax: VoIP provider, 7 months, integrated Vertex Telco tax solution with SAP CRM 7.0, provided several enhancements in the area of CRM contract management and billing.
• Licensing and Registration Web: Major Canadian bank, 8 months, technical lead of a team of 8 developers, developed a solution to administer brokerage and insurance licenses of the bank?s employees and to ensure regulatory compliance for these licenses based on Guided Procedures, BSP and WebDynpro for ABAP and Java in SAP HCM and SAP Learning Solution (LSO).
• Performance Management: Biotechnology Company, 5 months, developed a completely new, role-aware user interfaces for three different appraisal forms using BSP in SAP HCM, implemented approval processes with SAP business workflows.
• Extending e-Recruiting: Biotechnology Company, 6 months, extended candidate search with additional fields, provided external job board integration with a 3rd party job board aggregator, based on SAP e-Recruiting.
• Enterprise Compensation Management: Biotechnology Company, 5 months, provided functionality to calculate compensation budgets by custom formulas, the compensation planning application used by managers to spend the compensation budgets on their employees completely, solution based on SAP HCM-ECM and BSP.

Specifying, estimating and implementing a custom solution that keeps track of a software manufacturer's customers? licenses (=entitlements).

Technical lead architect of a team of 14, completely new business logic using BOPF for Business Suite integrated in SAP Sales and Distribution (SAP ERP), UI in WebDynpro for ABAP and Floor Plan Manager, entitlement rule management in SAP BRF+.

• Technical Consultant for several customer projects and one strategic development project at customer site in the CRM space

• Solution Developer responsible for several new features necessary for the project, but missing in standard CRM.

• Web-Based standard software in the domains of logistics and CRM on a java-based platform.

• writing my diploma thesis, and finally scientific staff in a team for modeling and simulation of deformation processes in steel.