# Enterprise search

> Search run for the people of one organization: schema, analyzers, ranking, and the daily work of keeping results trustworthy. About ten years of practice sit in this subject.

Broader subject: [Search engines](https://oppority.com/topics/search-engines.md).

## Work

- [Public search at country scale](https://oppority.com/work/public-search.md): Search a citizen can use: a polling place, a beneficiary record, found in hundreds of millions of rows.
- [One catalog, many storefronts](https://oppority.com/work/retail-search.md): Product search, autosuggest, filters, and per-field similarity for an omnichannel retailer: web, marketplace, and stores.
- [Return one record, not a list](https://oppority.com/work/one-best-record.md): From millions of candidates that share an organisation's name and address, return the single best record.
- [A move that kept the answers](https://oppority.com/work/platform-move.md): A production move from self-managed Apache Solr to managed OpenSearch, checked by whether the top results still agreed.
- [The team's output](https://oppority.com/work/search-team.md): Leading a search engineering group while staying close enough to the system to tell a relevance question from an operations question.