DXS - Direct Expansion Solutions
DXS - Direct Expansion Solutions
DXS - Direct Expansion Solutions furnizează soluții de pompe de căldură aer-sursă cu volum și debit variabile ale agentului frigorific (VRV/VRF) pentru clădiri din Statele Unite și Canada. Activitatea sa include proiectarea sistemelor, furnizarea echipamentelor, punerea în funcțiune, service-ul, pompele de căldură cu tehnologie inverter, ventilația și sistemele de control al calității aerului interior. DXS sprijină inginerii, arhitecții, proprietarii de clădiri și antreprenorii în aplicații din domeniul sănătății, rezidențial, guvernamental, militar, logistic și industrial, ajutând clienții să urmărească electrificarea strategică, reducerea consumului de energie și a emisiilor și eficientizarea operării clădirilor.

Senior Data Engineer, SAP HANA Cloud and Graph — Remote, United States

Lead the design of SAP HANA Cloud and graph data foundations for DataXstream’s enterprise AI platform. Improve pipelines, security, performance, and integrations supporting machine learning and search.

Descriere

  • Create, develop, and optimize SAP HANA Cloud data models, including tables, calculation views, CDS artifacts, stored procedures, and SQLScript.
  • Build graph models and traversal queries for connected-data use cases such as material substitution, compatibility, product and organizational hierarchies, and supply and fulfillment networks.
  • Analyze execution plans and optimize complex SQL and SQLScript workloads for high performance.
  • Support data-layer performance initiatives involving partitioning, indexing, memory management, workload classes, and result caching.
  • Develop ingestion and replication processes from SAP and non-SAP systems into HANA Cloud using SDI, SDA, SLT, change data capture, or similar technologies.
  • Provide the TypeScript product stack with secure, well-documented, and maintainable service layers.
  • Define and uphold practices for schema design, migrations, version control, and database-artifact reviews.
  • Manage database security and access controls, including roles, privileges, masking, anonymization, and tenant isolation.
  • Partner with machine learning and search teams on feature pipelines and search-indexing capabilities.
  • Take responsibility for monitoring, alerting, backup and recovery, capacity planning, and HANA Cloud upgrade preparedness.
  • Maintain clear documentation for data models and graph schemas used by engineering teams.

Cerințe

  • Extensive SAP HANA or HANA Cloud engineering experience, including data modeling, SQLScript, calculation views, and production performance tuning.
  • Hands-on experience with graph modeling and traversal languages such as SAP HANA Graph, Cypher/Neo4j, Gremlin, or SPARQL.
  • Advanced SQL skills, including execution-plan analysis and optimization of complex analytical and transactional queries.
  • Experience integrating and replicating data from source systems into HANA.
  • Strong knowledge of relational and dimensional modeling, normalization decisions, and controlled schema evolution.
  • Proficiency in TypeScript/JavaScript or Python.
  • Experience implementing database security and isolating data across multiple tenants.
  • Ability to communicate and document data models clearly.
  • Bachelor’s degree in Computer Science, Information Systems, or a related technical discipline, or equivalent practical experience.
  • Submit a resume in English.

Beneficii

  • Full-time contractor engagement.
  • Equal-opportunity and affirmative-action employer.

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