Moving to Elasticsearch from MySQL/Solr, or upgrading ES versions with breaking mapping changes — I handle the reindex, the mapping changes and the cutover so search stays available.
Migrate to or upgrade Elasticsearch with minimal downtime.
Migrated Cenoskop's Elasticsearch from version 7.x to 8.x with breaking mapping changes — used reindex-from-remote into a new index, validated data, and cut over with aliases. Zero downtime during the migration.
We plan the cutover with aliases, reindex into the new target, validate, and switch traffic. From €1,500.
Migration/upgrade for one primary index.
Yes, using reindex-from-remote into a new index and cut over with an alias — traffic keeps serving during the move.
Other problems I help with.
Relevant production work.
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Built the Go backend — API, matching logic and deployment.
Custom solution for collecting and evaluating traffic metrics with emphasis on processing speed and minimizing backend load.
Designed and built the backend for fast traffic metric collection and evaluation.
Crawler monitoring millions of products. Processing 30M products daily and comparing them.
Built and maintain the full crawling pipeline — from scraping through Elasticsearch indexing to price comparison.
Price intelligence engine for the US market. Processing large-scale product data.
Built the data pipeline and crawling infrastructure for large-scale US product monitoring.
Describe the problem in a few lines — I'll look at it and tell you what I think.