Open Data & Search Solutions Engineer
Search Platform Integration
- Design and deploy open-source search engine solutions such as Apache SolR, OpenSearch, or Elasticsearch
- Optimize indexing strategies for structured and unstructured data from diverse data sources
- Develop custom search features (facets, filters, synonyms, auto-suggestions) tailored to metadata and dataset discovery
- Implement scalable search pipelines with support for multilingual and full-text search capabilities
- Deploy and maintain metadata catalog systems such as Apache Atlas, NADA, or CKAN
- Ensure metadata harvesting and harmonization across multiple sources using catalog APIs and connectors
- Integrate catalog systems with enterprise data lakes, APIs, and external repositories
- Establish metadata governance policies and data stewardship workflows in collaboration with data owners
- I
mplement Linked Open Data techniques using DCAT, RDF, schema.org, and W3C standards - Publish datasets and metadata as linked data endpoints for reuse and interoperability
- Map internal metadata schemas to external ontologies (e.g., DCAT-AP, schema.org, Croissant)
- Build SPARQL endpoints or graph-based access for semantic querying of data assets
- Develop and maintain pipelines for metadata ingestion, enrichment, validation, and publication
- Integrate catalog and search platforms with analytics tools, APIs, and user-facing portals
- Support deployment of semantic technologies using containers, CI/CD pipelines, and cloud-native tools
- Collaborate with platform engineers, data stewards, and domain experts to deliver robust metadata solutions
- 6+ years experience deploying and operating open-source search engines (SolR, Elasticsearch, OpenSearch)
- Experience with metadata catalog platforms such as Apache Atlas, NADA, CKAN, or equivalent
- Strong understanding of metadata standards and vocabularies (DCAT, Dublin Core, schema.org, RDF, OWL)
- Proficiency in SPARQL, JSON-LD, XML, and semantic mapping techniques
- Familiarity with data discovery, information retrieval, and search tuning techniques
- Experience integrating catalog and search systems with APIs and microservices
- Working knowledge of containerization (Docker) and orchestration (Kubernetes)
- Scripting or development skills in Python, Java, or Scala for search and metadata tooling
- Familiarity with CI/CD pipelines (e.g., GitLab CI, GitHub Actions) and IaC tools (Terraform, Ansible)
- Bachelors or Masters degree in Computer Science, Information Science, Data Engineering, or related field
- Experience working in open data, statistical, or public-sector environments
- Knowledge of FAIR data principles, metadata quality frameworks, and interoperability standards
- Exposure to graph databases (Blazegraph, GraphDB, Virtuoso) or triple stores
- Contributions to or experience with semantic web and linked data communities
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