Business Applications Engineer - Atlassian, Personio, SAP

We are seeking a versatile and experienced Business Application Engineer / Manager to take end‑to‑end ownership of our core business applications, with a focus on SAP S/4HANA Public Cloud, Personio, and the Atlassian stack (Jira, Confluence). You will act as the central application owner and partner for Finance, Controlling, Sales, HR, and cross‑functional teams, ensuring a scalable, integrated, and future‑proof system landscape.

Responsibilities

• Application Ownership: Full responsibility for SAP S/4HANA Public Cloud, Personio, and Jira/Confluence, including governance, configuration, optimization, and lifecycle management.
• SAP S/4HANA Public Cloud: Lead setup and continuous improvement of our Finance‑centric greenfield ERP; design and optimize processes (GL, AP/AR, Assets, Controlling, basic Sales); manage change requests; coordinate external SAP partners.
• Personio: Own and enhance the HR core system; ensure efficient HR processes (employee lifecycle, time tracking, payroll‑relevant data); drive automation and integrations.
• Atlassian Stack: Administer and develop Jira and Confluence; configure workflows, permissions, and automation; promote best practices in project management and documentation.
• Integration & Automation: Build and optimize integrations across SAP, Personio, Atlassian, and adjacent systems; identify automation and data harmonization opportunities.
• Stakeholder Advisory & Training: Advise business teams on system capabilities and process improvements; deliver training; provide structured second‑level support.
• Project & Vendor Management: Lead and support implementation and optimization projects; manage external service providers and ensure delivery quality.