Johannes Rothmann

SAP Cloud Technology Expert | SAP BTP · Integration Suite · S/4HANA Private Cloud | Flughafen Zürich

Zürich Metropolitan Area

About

I design and implement cloud integration solutions on SAP Business Technology Platform - bridging architecture, development, and operations across complex enterprise landscapes. With 13+ years in SAP, my focus has shifted from hands-on ABAP development and SAP Basis to cloud-native integration architecture: SAP Integration Suite, BTP services, Identity and Access Management, and S/4HANA Private Cloud. Currently at Flughafen Zürich AG, I support solution architects in design decisions and independently implement integrations, IAM concepts, and BTP platform operations. Core areas: - SAP BTP Platform Architecture & Operations - SAP Integration Suite (Cloud Integration, Event Mesh) - S/4HANA Private Cloud (Identity & Access Management via SAP Cloud Identity Service) - End-to-end Interface Design & Testing I hold myself and my work to high standards - in architecture decisions, documentation quality, and solution design. I'm most effective in environments that share that mindset. I combine technical depth with the ability to communicate complex solutions clearly - to developers, architects, and business stakeholders alike.

Experience

  • SAP Cloud Technology Expert at Flughafen Zürich AG
    Aug 2025 - Present · 11 mos

    Responsible for SAP BTP platform operations and the implementation of cloud integration solutions in an aviation infrastructure environment. Key responsibilities: - Implement and operate SAP BTP services and SAP Integration Suite (Cloud Integration, Event Mesh) - Support SAP architects in solution design and architectural decisions - Independently develop solutions for application integration, process integration, and identity and access management - Ensure platform stability, security compliance, and continuous improvement of BTP landscape

  • SAP Integration Technology Consultant at AGILITA
    Oct 2023 - Jul 2025 · 1 yr 10 mos

    Delivered end-to-end SAP integration solutions as a consultant across multiple customer projects, focusing on SAP Integration Suite implementations within S/4HANA transformation programs. Key contributions: - Designed and implemented E2E interfaces between SAP and non-SAP systems using SAP Integration Suite - Developed integration architecture concepts and interface specifications in collaboration with architects - Led integration subprojects within SAP rollouts, coordinating across business and IT stakeholders - Performed reverse engineering of legacy interfaces for migration to cloud-based integration - Executed integration testing strategies including end-to-end validation

  • ZEISS Group (Full-time · 10 yrs 2 mos)
    • SAP Basis/Technology Consultant
      Oct 2021 - Oct 2023 · 2 yrs 1 mo

      Led SAP BTP adoption and platform administration within a global enterprise SAP landscape at one of the world's leading optics and technology companies. Key contributions: - Administered and expanded SAP Business Technology Platform across the enterprise landscape - Led and coordinated the internal SAP BTP expert team - Drove adoption of SAP BTP services as part of the cloud transformation roadmap - Implemented SAP ILM archiving scenarios with OpenText cloud solutions - Supported SAP Basis Housekeeping and Security Hardening Tasks (e.g. UCON)

    • SAP Solution Manager Experte
      Oct 2016 - Sep 2021 · 5 yrs

      Owned SAP Solution Manager operations and test management for a global SAP landscape, building quality assurance capabilities across international teams. Key contributions: - Managed and executed SAP Solution Manager upgrade projects - Implemented test automation using eCATT and CBTA, significantly reducing manual testing effort - Trained and consulted international teams on test management best practices - Improved SAP in-house development quality assurance

    • Dual Study Program - Business Information Systems
      Sep 2013 - Sep 2016 · 3 yrs 1 mo

      Completed a dual study program combining academic coursework at DHBW with practical experience in SAP environments at ZEISS - laying the technical and business foundation for my later SAP career. Academic focus areas: - Business Information Systems: Project management, IT management, business process management - Computer Science: Computer architecture, distributed systems, databases - Business Administration: Financial accounting, cost accounting, investment & finance - Economics: Macro- and microeconomics - Law, Soft Skills and ERP systems

  • EnBW ODR AG (Ellwangen · On-site)
    • SAP Developer
      Jul 2011 - Jun 2013 · 2 yrs

      Developed and maintained ABAP-based solutions in SAP R/3 and SAP IS-U, building the hands-on programming foundation that continues to inform my technical decisions today. Key contributions: - Developed custom ABAP programs including reports, dialog applications, batch input, and user exits in SAP R/3 and SAP IS-U - Implemented a custom integration interface between SAP IS-U and a Smart Meter web portal - Analyzed and resolved application errors across the SAP system landscape - Applied SAP Notes and corrections to ensure system stability and compliance

    • Apprenticeship – IT Systems Management (Informatikkaufmann)
      Sep 2008 - Aug 2011 · 3 yrs

      Completed a three-year vocational training program in IT systems management, covering IT infrastructure, business processes, and application development - the starting point of my IT and SAP journey.