SAP FIORI Developer

SAP Fiori Developer

The SAP Fiori Developer is a hands-on technical role within AAON's SAP Center of Excellence responsible for designing, developing, enhancing, and supporting SAP Fiori, SAPUI5, OData, ABAP, and S/4HANA user experience solutions. This role supports AAON's SAP transformation, stabilization, and continuous improvement roadmap by delivering intuitive, secure, scalable, and supportable SAP applications for manufacturing, supply chain, warehouse, finance, engineering, and business users.

This position is not intended to be a pure coding role only. The individual will be expected to partner closely with SAP functional leads, business stakeholders, AMS providers, Basis/Security, integration teams, and architecture teams to understand requirements, translate them into technical solutions, and ensure solutions are built according to AAON's SAP COE standards.

The ideal candidate has deep hands-on Fiori/UI5 development experience, strong ABAP and OData knowledge, exposure to S/4HANA extensibility patterns, and the ability to support both project delivery and production stabilization activities.

Primary duties may include, but are not limited to:

• Design, develop, enhance, and support custom SAP Fiori and SAPUI5 applications across AAON's SAP landscape.
• Build role-based applications using SAP Fiori design guidelines and SAPUI5 development standards.
• Develop responsive applications that improve usability for business users, power users, and operational teams.
• Customize and extend standard SAP Fiori applications where appropriate using SAP-supported extensibility options.
• Support Fiori Launchpad configuration, catalogs, groups/spaces/pages, target mappings, and tile management in coordination with Basis/Security.
• Troubleshoot UI5 runtime issues, browser compatibility issues, authorization-related launchpad issues, and performance bottlenecks.
• Ensure Fiori applications are scalable, maintainable, and aligned with AAON's SAP technical architecture.

• Design, build, and enhance OData services using SAP Gateway and ABAP development techniques.
• Create and maintain service definitions, service implementations, and data models required for Fiori applications.
• Support integration between front-end UI applications and S/4HANA backend processes.
• Develop and consume CDS views where applicable to support Fiori applications, analytics, and reporting needs.
• Troubleshoot end-to-end application issues across UI, OData, ABAP, authorizations, and backend configuration layers.
• Partner with integration teams when Fiori applications require interaction with external systems or middleware.

• Develop and support ABAP objects needed for Fiori applications, enhancements, reports, interfaces, conversions, forms, and workflow-related solutions.
• Apply clean core principles and S/4HANA extensibility best practices where applicable.
• Support enhancement frameworks, BADIs, user exits, classes, function modules, and custom tables as needed.
• Review existing custom code and identify opportunities to simplify, retire, standardize, or modernize legacy development.
• Work with the Technical & Integration COE to maintain WRICEF inventory, technical specifications, and development standards.
• Perform code reviews and ensure quality, readability, performance, and supportability of custom objects.

• Work with SAP functional leads across RTR, QTI, FTP, EWM, PTP, MDG, and other areas to understand business process requirements.
• Participate in design sessions to evaluate whether requirements should be met through SAP standard, configuration, Fiori extension, workflow, report, form, or custom development.
• Translate functional specifications into technical designs with clear assumptions, dependencies, impacts, and testing needs.
• Ask clarifying questions to ensure development solves the real business problem rather than simply fulfilling a requested technical change.
• Partner with business users and functional analysts during testing and issue resolution.

• Support unit testing, system integration testing, regression testing, and user acceptance testing for Fiori and ABAP deliverables.
• Prepare technical test evidence and support functional teams with test execution and defect resolution.
• Resolve production incidents related to Fiori apps, OData services, ABAP objects, launchpad access, and custom developments.
• Support release readiness, transport sequencing, cutover activities, and post-deployment validation.
• Participate in CAB and release governance processes as needed.
• Help stabilize SAP processes by reducing recurring defects and identifying root causes.

• Create and maintain technical specifications, development documentation, unit test evidence, and deployment notes.
• Ensure all Fiori/UI5, OData, ABAP, and extension objects are documented according to AAON SAP COE standards.
• Maintain accurate object inventory and support traceability between business requirements, functional specifications, technical specifications, transports, and test results.
• Contribute to SharePoint/document repository standards for SAP technical documentation.
• Support knowledge transfer from AMS providers and ensure AAON retains technical understanding of custom-built solutions.

• Work with SAP Security to ensure applications follow proper authorization models and role-based access patterns.
• Design applications with appropriate error handling, logging, validation, and security considerations.
• Optimize front-end and backend performance for custom applications and OData calls.
• Review applications for usability, maintainability, technical debt, and long-term supportability.
• Ensure custom solutions do not create unnecessary operational risk or avoidable dependency on external consultants.

Education and Experience Requirements:

• 7+ years of hands-on SAP technical development experience.
• Strong experience developing SAP Fiori and SAPUI5 applications.
• Strong experience with SAP Gateway and OData service development.
• Strong ABAP development skills including classes, reports, enhancements, forms, interfaces, and debugging.
• Experience with SAP S/4HANA technical development and Fiori Launchpad concepts.
• Experience translating functional requirements into technical specifications and working solutions.
• Experience supporting testing, defect resolution, release management, and production support.
• Strong troubleshooting skills across front-end, OData, ABAP, authorization, and backend layers.
• Strong communication skills and ability to work with both technical and functional teams.

Disclaimer:

Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at a time with or without notice. This job description is not an exhaustive list of all functions that the employee may be required to perform, and the employee may be required to perform additional functions. The company reserves the right to revise this job description at any time. The employee must be able to perform the essential functions of the position satisfactorily. If requested, reasonable accommodations may be made to enable employees with disabilities to perform the essential functions of the job, absent undue hardship.