I will optimize your elasticsearch performance and search relevance
Over deze dienst
Is your Elasticsearch slow, returning irrelevant results, or eating too much memory? Need help deploying a new ES cluster from scratch?
With 8+ years of production Elasticsearch experience across enterprise multi-tenant systems, I'll diagnose, fix, or build your search infrastructure.
What I offer:
- Deploy Elasticsearch clusters from scratch (Docker, Kubernetes, bare metal)
- Performance audit: analyze queries, index templates, mappings, and cluster health
- Search relevance tuning: BM25, custom analyzers, boosting, RRF hybrid ranking
- Index template optimization (proven track record of significant query speedups)
- Multi-tenant architecture design with proper isolation
- Migration between ES versions (7.x 8.x 9.x)
- Custom analyzers for specific domains: names, phones, emails, company names
- Horizontal scaling strategy: shards, replicas, node roles
My background:
- 8+ years building, deploying, and maintaining enterprise search systems in production
- Designed multi-tenant ES architectures running for years without major incidents
- Experience with hybrid search (BM25 + vector), Elasticsearch + Qdrant
- Docker/Kubernetes deployments for ES clusters
Maak kennis met Serhii T
Elasticsearch, AI Search Engineer, 8 Years Production Experience
- Afkomstig uitPolen
- Lid sindsapr 2026
- Gem. reactietijd4 uur
Talen
Oekraïens, Russisch, Engels
Mijn portfolio
Veelgestelde vragen
Which Elasticsearch versions do you work with?
6.x through 9.x. I can also help with OpenSearch.
Can you help with vector/semantic search?
Yes. I have experience with hybrid BM25 + vector search using both native ES kNN and external vector stores like Qdrant.
Do you work with large clusters?
Yes. My production experience includes multi-tenant clusters with millions of documents and hundreds of concurrent users.
What if I'm not sure what's wrong?
Start with the Basic audit. I'll identify the problems and recommend next steps — no guesswork.

