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Data Science Chief Expert - Spend Management

SAP · Bangalore, India

About this role

The Data Science Chief Expert for Spend Management will join the Data and Applied Science team to build the semantic and contextual foundation of SAP's AI. The role focuses on creating a context engine grounded in SAP's business ontology, transforming raw business data into a knowledge layer that powers AI agents and assistants. Responsibilities include designing enterprise ontologies, harmonizing data across SAP and non-SAP landscapes, and operationalizing end-to-end machine learning and AI solutions. You will translate ambiguous business challenges into concrete AI use cases, develop generative AI and LLM-based solutions, and partner with cross-functional teams to ensure production-ready, scalable outcomes. Required qualifications include a Master's degree or PhD in a quantitative field and 15+ years of experience in machine learning, data science, or AI research. Candidates must possess deep expertise in Python, SQL, and ML libraries, along with hands-on experience in cloud platforms, big data infrastructure, and SAP data models. Proficiency in ontology design (OWL, RDF, SPARQL) and entity resolution is essential. Preferred qualifications include experience with RAG, vector databases, agentic AI, and contributing to reusable AI platforms. The position is based in Bangalore and follows a hybrid work model.

For full details about this role, click “Apply on company site” to view the employer’s original posting.

Skills for this role

PythonSQLPyTorchTensorFlowscikit-learnMachine LearningDeep LearningStatistical ModelingGenerative AILLMsKnowledge EngineeringSemantic Data SystemsDatabricksSAP DatasphereSAP HANA CloudAWSAzureGoogle Cloud PlatformOWLRDF/RDFSSKOSSHACLSPARQLCypherGQLRetrieval-Augmented GenerationVector DatabasesAgentic AI

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Get interview-ready for this role

A focused preparation guide, built around this job’s responsibilities and requirements.

✦ AI-generated guide
Preparation suggestions, not the employer’s actual interview questions. Always check the original posting for current requirements.
01

Understand the role

What matters most

  • Semantic Foundation Development

    Build and maintain the enterprise-level knowledge layer by designing ontologies and semantic models. This requires mapping complex business processes and master data into a unified structure that powers AI agents, ensuring accuracy through deep integration with SAP's business ontology.

  • Data Harmonization and Interoperability

    Execute entity resolution and identity stitching across disparate SAP and non-SAP landscapes (e.g., Salesforce, ServiceNow, IoT systems). You must harmonize these sources into a coherent semantic layer to ensure AI agents operate on consistent, high-quality business context.

  • End-to-End AI Operationalization

    Translate ambiguous business requirements into production-ready AI solutions. This involves the full lifecycle from experimentation and feature engineering to deployment and lifecycle support, ensuring that models are scalable and reliable within enterprise cloud environments.

Likely challenges to think through

  • Balancing Semantic Rigor with Scalability

    Designing enterprise ontologies that are both highly accurate and performant at scale is difficult. Prepare by demonstrating how you evaluate trade-offs between different graph technologies (e.g., RDF triple stores vs. labeled property graphs) and how you maintain semantic contracts in a distributed data mesh environment.

  • Translating Ambiguity into Concrete AI Use Cases

    The role requires bridging the gap between abstract business challenges and technical AI implementation. Prepare by practicing how you decompose high-level business goals into measurable AI outcomes, specifically focusing on how you validate that your technical design directly addresses the underlying business process.

  • Managing Cross-System Data Complexity

    Integrating data across diverse platforms (SAP and non-SAP) introduces significant mapping and consistency risks. Prepare by highlighting your experience with federation, virtualization, and replication strategies, and be ready to discuss how you handle data governance and identity stitching in complex, heterogeneous landscapes.

03

Practice your answers

Technical practice

Designing Enterprise Ontologies for Business Context

What to coverExplain your approach to designing enterprise-level ontologies using OWL and RDF. Discuss how you balance the complexity of upper-level ontologies with the need for practical, domain-specific application in SAP environments.

Entity Resolution and Data Harmonization

What to coverDescribe your methodology for performing entity resolution across disparate systems like SAP, Salesforce, and Workday. Focus on how you handle identity stitching and deduplication to create a unified semantic layer.

Trade-offs: RDF Triple Stores vs. Labeled Property Graphs

What to coverCompare the strengths and weaknesses of RDF triple stores versus labeled property graphs (e.g., Cypher-based) for enterprise knowledge representation. Provide criteria for choosing one over the other in a high-scale AI context.

Operationalizing RAG for Enterprise Data

What to coverDiscuss the challenges of implementing Retrieval-Augmented Generation (RAG) on structured enterprise data. Address how you ensure grounding accuracy and manage the integration of vector databases with existing business process semantics.

Scaling AI Solutions in Production

What to coverDetail your process for taking an AI model from experimentation to a production-ready, scalable service. Include how you handle lifecycle support, monitoring, and continuous improvement in a hybrid cloud environment.

Leveraging SAP Data Models and APIs

What to coverExplain how you would utilize SAP One Domain Model and SAP Graph API to ground AI agents in real-world business processes. Suggestion: Focus on how these tools map to underlying business objects to ensure semantic consistency.

Agentic AI and Orchestration Frameworks

What to coverDescribe your experience with agentic AI, specifically regarding planning, orchestration, and tool use. Explain how you design multi-agent architectures that can reliably execute complex business tasks.

Data Mesh and Semantic Contracts

What to coverHow do you apply data mesh principles to enterprise AI? Discuss the role of semantic contracts in ensuring governed, self-service data consumption across cross-functional teams.

Behavioural practice

Translating Ambiguous Business Challenges

What to coverDescribe a time you had to translate an abstract or ambiguous business problem into a concrete AI use case. Explain your process for defining the scope, technical design, and measurable business outcomes.

Cross-Functional Stakeholder Management

What to coverGive an example of how you have collaborated with non-technical stakeholders, such as product or business teams, to deliver a production-ready AI solution. How did you ensure the solution met their practical needs?

Navigating Technical Trade-offs

What to coverShare an experience where you had to make a difficult technical trade-off between model performance and system scalability. How did you evaluate the options and what was the final impact on the project?

Leading Through Technical Influence

What to coverDescribe a situation where you had to influence a team or organization to adopt a new AI technique or semantic standard. How did you build consensus and address technical skepticism?

02

Sharpen your knowledge

Topics to prepare

  • Enterprise Ontology and Semantic Modeling

    Review the principles of designing enterprise-level ontologies using OWL, RDF, and SHACL. Practice mapping disparate business schemas to a unified semantic layer. This is critical for the role's focus on building a context engine that grounds AI agents in SAP's business ontology.

  • Retrieval-Augmented Generation (RAG) and Knowledge Grounding

    Study the integration of vector databases with knowledge graphs to improve LLM accuracy. Focus on how to ground generative AI in structured enterprise data. This is highly relevant as the role requires building AI agents that understand complex business process semantics.

  • Entity Resolution and Data Harmonization

    Examine techniques for identity stitching and deduplication across heterogeneous systems like Salesforce, Workday, and SAP. This is essential for the requirement to harmonize data across SAP and non-SAP landscapes into a single knowledge layer.

Skills to revise

  • Querying Semantic Data (SPARQL, Cypher, GQL)

    Practice writing complex queries for both RDF triple stores and labeled property graphs. This skill is explicitly required for interacting with SAP's knowledge graph engines and managing semantic data structures.

  • Production-Grade AI/ML Lifecycle Management

    Refine your approach to operationalizing ML models, specifically focusing on deployment, monitoring, and lifecycle support in cloud environments (AWS/Azure/GCP). The role demands moving beyond experimentation to production-ready, scalable outcomes.

  • SAP Data Model Proficiency

    Review SAP One Domain Model, SAP Graph API, and SAP Datasphere architectures. Familiarity with these specific SAP assets is a core requirement for building the semantic foundation of their AI agents.

04

Your preparation checklist

  • Prepare a technical case study on enterprise ontology design

    Develop a presentation or document detailing a past project where you designed an enterprise-scale ontology using OWL, RDF, or SHACL. Focus on how you harmonized disparate data sources, managed entity resolution, and ensured semantic interoperability across complex business landscapes.

  • Synthesize your experience with SAP data ecosystems

    Review your hands-on experience with SAP technologies such as SAP Datasphere, HANA Cloud, and the One Domain Model. Prepare to discuss how you have mapped business process semantics (e.g., Procure-to-Pay) to technical data models to support production-grade AI solutions.

  • Draft a framework for LLM and RAG integration

    Outline your approach to building production-ready generative AI solutions. Be prepared to explain your methodology for grounding LLMs in enterprise knowledge graphs, managing vector databases, and ensuring the accuracy of AI agents within high-stakes business environments.

  • Formulate strategic questions for the hiring team

    Prepare high-level questions regarding the current maturity of SAP's semantic infrastructure, the specific challenges in scaling agentic AI across their diverse customer base, and how the team balances innovation with the strict reliability requirements of enterprise ERP systems.

AI-generated from the job information · Prepared Oct 11, 2026 (UTC)Useful preparation, not a guarantee of eligibility or an offer.

Availability last checked: 18 Oct 2026. Status can change after a check; confirm on the employer’s website. Report an issue · Our checking policy

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