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Work Experience

Short Studies of IS-U / Service Line Studies
2024 11

Built a Ticket System helping to classify service indicents IS-U Device Management (Geräteverwaltung).


Technologies Used
  • ABAP OO Development
  • Python
  • Odoo 17
  • IS-U

Developed Odoo Addon huyreka.de
2024 10

Odoo List views are a complex JS application on top of the OWL framework.
A repeated requests for an extension to save  column settings in Browser memory was heard on this years Odoo conference.
I delvelopped an App to address this.


Technologies Used
  • Python
  • Odoo 17
  • Odoo OWL
  • Reactive JS Frontend

Developed OdooOData - UI Generator fileon UG, DE / OdooOData.com
2024 01 - 2024 10

Based on earlier project experience I developed a generic solution for a change management system.

In a service oriented architecture, supported by OData APIs a user can import metadata from a service url and configure the generated UI module.
Premium Extensions will allow the use of a proxy to the service publisher or an audit of change orders.


Technologies Used
  • ABAP OO Development
  • Python
  • Odoo 16
  • OData

Developing a Farm Production Tracking System AHA Services, TH
2023 6 - 2023 12

From concept to implementation of the first versions I led the development of a production tracking system.

The goal was to enable farm owners to monitor, compare, and plan production quantities seamlessly using an open-source ERP solution.


Technologies Used
  • Python
  • Odoo 16
  • KIVY Android Apps
  • JS Aquaponics

Developed a Warehouse Picking App BuuM Umwelttechnik, DE
2023 4

Designed and implemented an Android app for warehouse picking. 

The app allows for the display of picking orders and utilizes a QR code scanner to identify order items, ensuring accuracy and efficiency in the picking process.

Technologies Used
  • Python
  • Odoo 16
  • QRcode Scanner
  • Android Apps
  • JS, Droidscript, MySQL

Developer ABAP w. WebDynpro and Fiori nag Informatik AG CH
2022 3 - 2022 10
As part of the Contract Administration extension project, I utilized my ABAP expertise to correct and build Webdynpros and BAPIs. 
Working in three-week sprint cycles, I contributed to the development of custom extended Fiori applications, enhancing user experience and efficiency.
Service Line: Analysis of bug reports led in all cases to solutions or proposals for improvement. Technologies Used
  • SAP HANA
  • UI5, Netweaver, ABAP OO, WebIDE

Systems Developer, Founder of Lda in Portugal Emyune PT Lda. PT
2021 3 - 2021 10

The demand for energy and nutrition is rising and new technologies have to optimize the use of resources. 

Founded Emyune PT, Lda in Lisbon, focusing on innovative farming techniques for microalgae.

We focussed on low cost ponds with off grid power supply and a network integrated management system. We suggested cooperations with ISA (Instituto Supperior da Agronomia) and local organizations.

Learned about:
  • Algae production
  • Microcontrollers, Rasberry Pi
  • Microbiology, Farming

ERP Developer - Odoo Portal Software fileon UG, DE
2021 11 - 2022 2
Improving the Portal Software of fileon.de was required for better usability and customer satisfaction. 
Extended Python programs and optimized backend processes using QR codes for fast and reliable document identification. Technologies Used
  • Odoo 14, HTML 5
  • OWL, Typescript, Image Processing

2nd Level Support, Application Developer fileon UG / ITSCare Gbr, DE
2018 7 - 2022 12
Provided second-level support for AOK's SAP custom development system, serving four million users. 
Developed an order application using the Odoo framework to enhance customization and user experience for key users across subsidiaries.  This order application uses the Odoo (Python ERP) framework to let about 50 key users of 11 subsidiaries identify relevant settings through a CMS, create change orders and track the status of these orders.
The experience led to development of a generic tool presented @ OdooOData.com .

Technologies Used
  • SAP Customer Service
  • ITIL Netweaver, ABAP OO, Odoo 14
  • Python
  • Docker

SAP ABAP Developer fileon UG / E.ON BS GmbH
2017 7 - 2018 6
Supported the redesign of web services and UI changes for E.ON's SAP CRM system, replacing outdated editor tools with new integration methods.


Technologies Used
  • SAP CRM 7
  • UI5 Netweaver, ABAP OO, Webservices, GMC, InspireXML

SAP ABAP Developer fileon UG / Atotech Berlin
2017 6
Assisted Atotech in preparing for the migration to HANA DB, developing code parsers and workbenches to streamline the process and reduce manual efforts.


Technologies Used
  • SAP HANA
  • ABAP on HANA
  • Netweaver 7.4
  • Training ABAP Developers

ERP / Mobile App Developer Logistics fileon UG / CCS Cargo City Süd GmbH
2017 3 - 2017 6
Developed ERP-integrated solutions for CCS Cargo City Sued GmbH, focusing on improving transport logistics efficiency through mobile applications and smart technologies. Technologies Used
  • Odoo Python ionic framework
  • Android Im- and Export, Airfreight

Develop Integration of SAPUI5 with web2py fileon UG
2017 1 - 2017 2
Integrated SAPUI5 with web2py, leveraging the strengths of both frameworks to build interactive models and applications for backend management. Technologies Used
  • SAP HANA
  • OpenSQL, web2py, web2py DAL, HTML5

SAP ABAP Developer and Trainer nearcons SAS, IT / Prysmian Group
2016 6 - 2016 9
Supported HANA upgrade projects and provided training for ABAP developers on new features and requirements. Developed key tools and reports for process optimization.


Technologies Used
  • SAP HANA
  • UI5, SAP Netweaver, ABAP OO

SAP ABAP Developer Quanta SpA, Poste Italiane, RM, IT
2016 2 - 2016 4

Worked on backend integrations for CRM 7 systems, developed order export functionalities, and created custom reports for enhanced data visualization.

Technologies Used
  • CRM 7
  • Webservices, Netweaver, ABAP OO

Developing Spirulina Farming Concept Studies
2016 10 - 2016 12
Explored the potential of microalgae farming for nutrition and energy production, collaborating with research institutions to develop scalable and cost-effective farming solutions.


Technologies Used
  • Spirulina, Algae Production
  • ROI-Calculations, Nutrition, Biofuels

SAP ABAP Developer WIPRO Ltd., SAP SE, Walldorf, DE
2015 5 - 2015 12
Developed Fiori-like applications for S/4 HANA, focusing on supplier evaluation and MM-PUR standard function extensions to comply with new legislation.


Technologies Used
  • SAP HANA
  • CDS Views
  • SAP Netweaver, ABAP OO, SAP ECC 6.0, MM-PUR, Odata

SAP ABAP Developer fileon UG / Riegele KG, Augsburg
2015 11 - 2015 12
Upgraded EMCS XML Tax Application for SAP ERP, implementing syntactical and functional extensions to comply with regulatory changes.


Technologies Used
  • EMCS XML
  • SAP MM
  • Netweaver, ABAP Reporting

Web Application and Business Developer fileon UG / A&O GmbH
2014 12 - 2015 5
Design and implementation of archiving services for SMEs Complete development of backend and frontend modules on OpenERP Business plan und calculation for start up Technologies Used
  • Python
  • Linux Webservers, OpenERP

SAP ABAP Technical Analyst Tech Mahindra Ltd. / BASF - Business Services, DE
2013 10 - 2014 9
Provided support for SAP systems in compliance with REACH legislation, specializing in EHS, Material Management, GTS, ALE, and Label Management.


Technologies Used
  • SAP HANA
  • UI5, SAP Netweaver, ABAP OO

SAP ABAP Developer Riegele KG, Augsburg
2012 9 - 2012 10
Developed EMCS XML tax application for a brewery (European technology and quality leader), extending standard message types for automated tax declaration.


Technologies Used
  • SAP 4.5
  • ABAP

ERP and Python Designer and Developer HUYREKA Solutions / OSESoftware Co. Ltd.
2012 7 - 2012 8

Developed migration tools for OpenERP, analyzed data structures, and tested migration features, contributing to the adoption of open-source ERP solutions.

Technologies Used
  • Python
  • OpenERP

SAP ABAP Developer SAP HUYREKA Solutions / MHP / Volkswagen AG
2012 3 - 2012 6

Developed CRM tools and migration programs for Mieschke Hofmann und Partner (mhp.de) / Volkswagen AG, enabling seamless data migration and order management.


Technologies Used
  • SAP CRM7.0 (1Order)
  • Sales
  • Service
  • BOL
  • ALE

ERP Design and Development HUYREKA Solutions
2012 11 - 2013 9
Proposed and implemented OpenERP solutions for trading and legal agencies in Bangkok, integrating ERP processes and web shop functionalities.


Technologies Used
  • Python, OpenERP

Studies HUYREKA Solutions
2011 9
Conducted studies on SMB ERP solutions, evaluating market concepts and partnership opportunities with NSD, a leading provider of commercial ERP systems.


Technologies Used
  • NSD BCS
  • ERP
  • GRP

Studies HUYREKA Solutions
2011 10 - 2012 2
Researched online operating systems based on JavaScript frameworks, proposing innovative approaches for frontend IDE development.


Technologies Used
  • OOS
  • JS
  • ExtJS
  • OO Patterns
  • Software Ergonomics

Education

Physics (Masters Degree)
University Hamburg

Scientific method is key to success.


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SAP Support Expert


Gregor Huyskens

huyreka.de

sap@huyreka.de

+49.621.9535.4066


Skills


ABAP OO Development

80 %

ABAP on HANA

50 %

Python

50 %

Languages


German


English


Portuguese