Sebastian K.
SAPUI5 / SAP Fiori Expert - SAP Fullstack Developer - SAP AI Enthusiast - SAP CAP/RAP Developer
Experience
Sep 2022 - Mar 2025
2 years 7 monthsSaarbrücken, Germany
Maintenance and Enhancement of a SAPUI5 Application for Customer and Order Management
Telecommunications Industry
- Bug fixing and functional enhancements of an existing SAPUI5 application
- Adapting to Fiori Design Guidelines and ensuring accessibility
- Implementing missing features in the frontend and backend
- Technical support during the go-live process and taking on first- and second-level support
Mar 2022 - Jul 2022
5 monthsHamburg, Germany
Support in SAPUI5 / SAP Fiori across several customer projects
CGI
Upgrading several SAPUI5 applications to a higher UI5 version in line with the Fiori Design Guidelines
Analyzing, refactoring, and restructuring existing code to improve quality and maintainability
Designing and implementing a complex frontend application for process handling
Developing extension and routing concepts and implementing numerous requirements
Advising colleagues on interface and service development and taking on tasks in service development
Dec 2021 - Present
3 years 9 monthsDevelopment of modern SAPUI5 applications in the SAP RE-FX module
Ascavo AG
- Consulting on infrastructure and backend development
- Full frontend development in line with the Fiori Design Guidelines
- Developing tailored SAP-based IT solutions for the real estate industry
Nov 2020 - Jan 2021
3 monthsHamburg, Germany
New development of automation control for the brewery systems
Wildwuchs Brauwerk
- Developing new control software with TwinCAT (Beckhoff), taking existing hardware into account
- Connecting the software to valves, pumps, and sensors and commissioning the systems
Jun 2020 - Jun 2021
1 year 1 monthWalldorf, Germany
Product development in Cloud Security – service development for central authorization and permission management
SAP
- Developing a central permission management service on the Cloud Foundry platform
- Implementing a compile server (Java), a management server (Go), and a frontend component (SAPUI5)
- Main responsibility for UI/UX development and implementation in SAPUI5
- Creating automated UI tests and setting up a continuous integration pipeline
Aug 2019 - Dec 2019
5 monthsWalldorf, Germany
Further development of an SAPUI5 application for risk management on an SAP BW system
SAP
- Frontend development in SAPUI5 and test automation (QUnit, OPA5)
- Collaborated on backend and quickly got up to speed with complex functional and technical requirements
- Agile implementation in the Innovative Business Solution team
Jul 2019 - Present
6 years 2 monthsFreelance SAPUI5 / SAP Fiori consultant and SAP full-stack developer
Self-employed
- Consulting and development in SAPUI5 / SAP Fiori
- SAP full-stack development
Mar 2019 - Jun 2019
4 monthsHamburg, Germany
Cloud strategy in the SAP area – PoC implementation on Cloud Foundry
Consumer Goods and Retail
- Developed a sample implementation to analyze receipts using node.js and Python
- Used Machine Learning services on SAP Cloud Platform – Cloud Foundry
- Provided consulting throughout the entire advisory and implementation process
Aug 2018 - Jun 2019
11 monthsFrankfurt, Germany
Support and further development of an application for processing return orders
Automotive Industry
- Full-stack development of a returns process application using SAPUI5, Fiori, OData, and ABAP OO
- Automation of SD orders and quality notifications in SAP ERP
- Functional project management
Jun 2017 - Jul 2018
1 year 2 monthsHamburg, Germany
Development of SAPUI5 applications for billing notifications and port fees
Transport and Logistics
- Implemented applications to bill inland waterway charges and port fees
- Implemented an Order-to-Cash process in SAP ERP and developed a Fiori-compliant UI
- Functional subproject management
Dec 2016 - Mar 2017
4 monthsFreiburg im Breisgau, Germany
Integration of Confluence search via REST API into an SAP Enterprise Portal
Manufacturing Industry
- Extension of the existing SAP portal with Confluence search via REST API
- Integration of personalization, filtering and paging into the portal search
Oct 2016 - Dec 2017
1 year 3 monthsHamburg, Germany
Implementation of a web portal for inland vessel registration and deregistration on the SAP Cloud Platform
Transport and Traffic
- Development of a web portal for inland vessel registration and deregistration on the SAP Cloud Platform
- Consulting, design, implementation, testing and support as Full-Stack Developer
- Training of end users and developers
Jan 2016 - Mar 2017
1 year 3 monthsFreiburg im Breisgau, Germany
Migration of an SAP Enterprise Portal 7.0 with FirstSpirit integration to 7.4
Manufacturing Industry
- Second-level support for SAP Enterprise Portal and FirstSpirit CMS
- Preparation and execution of the migration from 7.0 to 7.4
- Adjustment of portal components for the new system
Feb 2015 - Dec 2015
11 monthsKarlsruhe, Germany
Implementation of an intranet portal based on SAP Enterprise Portal
Agricultural Industry
- Design, implementation, testing and maintenance of an employee portal
- Setup and administration of the portal and CMS
- Development of portal applications in Java and SAPUI5
Sep 2014 - Jan 2015
5 monthsHamburg, Germany
Proof-of-Concept extension of a monitoring application with SAPUI5
Retail
- Evaluation and extension of a proof-of-concept monitoring application
- Frontend development in SAPUI5 and implementation of a Java web service
- Training of an IT service provider staff member
Apr 2014 - Aug 2014
5 monthsKassel, Germany
Implementation of a customer portal as a Fiori Launchpad with SAP Enterprise Portal
Agricultural Industry
- Design, implementation, and rollout of a customer portal based on SAP NetWeaver Enterprise Portal
- Development of Fiori Launchpad apps, SSO configuration and OData service development
Oct 2013 - Mar 2014
6 monthsHamburg, Germany
Evaluation of a Document Management System
Energy Supply
- Comparison of a .NET meeting management application with OpenText Livelink
- Creation of a decision document and migration of custom functionality
Sep 2013 - Jun 2019
5 years 10 monthsSAP Consultant
Acando GmbH
Mar 2013 - Aug 2013
6 monthsBachelor's Thesis Student
Acando GmbH
- Writing a bachelor's thesis on 'Application Development with Oracle APEX'
- Extending a bonus calculation system with a mobile component
Jun 2010 - Dec 2012
2 years 7 monthsHamburg, Germany
Working Student – Process Improvement FAL A380
Airbus Operations GmbH
- Development of reporting applications with WebFocus, iMacros, and VBA
- Support of logistics processes in the A380 Final Assembly Line
Languages
German
NativeEnglish
AdvancedEducation
Oct 2008 - Aug 2013
University of Applied Sciences Wedel
Bachelor of Science in Business Informatics · Wedel, Germany
Gymnasium Finkenwerder
Abitur (German high school diploma) · Hamburg, Germany
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