SAP Experts in Hanover

Reporting to the Head of Group Accounting / VP Finance.

• Preparing and monitoring weekly cash flow forecasts for four entities
• Handling VAT matters with the tax authorities
• Submitting monthly VAT returns
• Leading the team during the annual audit conducted by Deloitte
• Preparing and analysing monthly financial statements (under HGB and IFRS) for four entities
• Compiling annual financial statements—including management reports and notes—for the auditors
• Conducting segment analyses and associated reporting

• Designed and implemented comprehensive business processes, leading cross-functional teams to increase customer satisfaction and reduce costs
• Provided training and ensured benefits realization through end-to-end workflow development
• Contributed to the “Generate Insights from Hidden Knowledge” initiative by developing and deploying AI-driven workflow automation solutions using Large Language Models (LLMs) and low-code/no-code platforms
• Designed multi-agentic workflows integrating OpenAI, LangChain, Haystack, and n8n to automate document review, data extraction, and knowledge summarization processes
• Led the orchestration of AI and automation frameworks to enhance medical and business review processes, ensuring compliance, explainability, and transparency
• Collaborated cross-functionally to translate complex business requirements into AI-enabled automation prototypes aligned with enterprise compliance and data privacy standards
• Applied Power Automate, UiPath, Nintex, and ServiceNow to deliver rapid, scalable, and secure automation solutions within validated operational environments
• Leveraged Lean Six Sigma, Agile/SAFe, and ITIL principles to structure AI development pipelines ensuring measurable impact, auditability, and sustainable governance
• Managed cross-departmental collaboration to standardize workflows, reducing errors and enhancing task management. Established governance frameworks to ensure the sustainability of automation solutions

• Developed cloud-native enterprise applications on SAP Business Technology Platform using Node.js, SAP UI5, and RESTful APIs, delivering solutions across training management, procurement, employee information, and logistics domains
• Served as the primary developer for the maintenance, enhancement, and production support of three enterprise applications, delivering new features, resolving production issues, and coordinating releases with business stakeholders
• Experienced in leveraging AI-assisted development tools such as Microsoft Copilot to accelerate feature development, generate code, prototype solutions, and support application migration and modernization
• Designed backend services, domain models, and SAP Fiori/UI5 interfaces, implementing business workflows, role-based access control, validations, scheduling, reporting, and data import/export capabilities
• Designed and integrated enterprise services with SAP SuccessFactors, SailPoint, ERP systems, and external Learning Management APIs, including automated synchronization for 11,000+ user data
• Designed and implemented AMQP-based event-driven services processing up to 500 RFID parcel scan events per day for a logistics application
• Managed deployments and application operations using CI/CD pipelines, SAP Solution Manager, SAP BTP Cockpit, Kibana, and cloud monitoring tools, performing root-cause analysis and resolving production incidents
• Managed application dependencies by resolving npm package version conflicts and remediating critical and high-severity security vulnerabilities, ensuring production compliance and application stability
• Collaborated with architects, business users, SAP governance teams, and distributed Agile teams throughout technical design, code reviews, sprint planning, documentation, and software delivery

• Independently responsible for the conception and cross-market rollout of a safety-relevant digitalization project for the centralized, transparent provision of vehicle and service data
• Developed an integration concept for existing IT and workshop sy...

Cross-brand design system

Focus: Analysis of the causes of recurring layout deviations in design system components. The cause was the integration of visual regression tests (BackstopJS) into the build and approval process: deviations were not blocked, and reference images were replaced without approval.

Recommendations for a controlled workflow with mandatory approval and test results as a prerequisite for merging. Contributed to the successor system based on Lit/Web Components.

Technologies: Lit, Web Components, SCSS, Gulp, BackstopJS, GitHub Enterprise, JFrog Artifactory

• Worked in the IT infrastructure of the Deloitte team.
• Planned assignment as Service Catalog Manager at an insurance company in Hannover.

SAP S/4HANA Implementation (Greenfield)

• SAP Finance Reporting
• VAT Reporting
• Foreign Plants
• Tax Calculation for SD/MM
• Z4/Z5 Reports
• Intrastat
• SAP DRC (E-Invoicing)

System: SAP

Industry: Manufacturing

Team: 10

• Took ownership of the full development lifecycle for various features, from design through coding, debugging, and production deployment, ensuring compliance with banking-grade reliability standards.
• Optimized SQL queries, reducing data-processing time by up to 50%, especially for large datasets handled.
• Developed and maintained automated tests using JUnit and Mockito.
• Utilized GitHub Copilot as an AI-assisted development tool to accelerate code generation, improve code quality, and increase development efficiency within the team.
• Resolved 90% of assigned production issues independently, often under tight deadlines, contributing to uninterrupted system availability.

• First-time InEK costing for four facilities
• Project management
• Products: Orbis, SAP, Excel, TIP HCe, Logex

• Managing the general ledger and subledgers as well as intercompany reconciliation for the subsidiary companies

• Billing software for the second-highest security authority of the Federal Republic of Germany
• Passed security clearance level 2
• Frontend and backend development
• Consulting on the introduction, design, implementation, and development of technical components
• Code reviews, component testing, module testing, group module testing
• Implementation of UI/UX design
• Used technologies: HTML, CSS/SCSS, JavaScript, Node.js, Vue 3, PrimeVue, Webpack, Vuex, Momentum, Jest, NPM, Lodash, Java 17, Spring Boot, Lombok, GraphQL, JUnit, Maven, Keycloak, Python, Docker, CI/CD, Kubernetes, Oracle SQL, Postman, Storybook, Microservices, Monorepo, Jira, Confluence, Scrum, GitLab, AWS, IntelliJ, Visual Studio Code, Neovim, XLSX, responsive Webdesign, BITV 2.0 (U.S. Section 508) / WCAG 2.2

• Implementation and mapping of regulatory requirements (CSRD, ESRS) in Shiny dashboards and backend functions
• Design and development of data-driven modules in Shiny incl. ESG metrics and reporting templates
• Integration of data sources (SQL, SAP HANA, APIs, CSV/Excel) via DBI, odbc, httr and readr
• Creation of interactive visualizations with plotly, highcharter and DT (DataTables)

• Implementation of a financing and leasing system for Market NL (Miles / Miles MMP) from supplier Sofico