I will optimize your elasticsearch performance and search relevance

B
bombascter
B
bombascter
Serhii T
optimize your elasticsearch performance and search relevance
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optimize your elasticsearch performance and search relevance
Full Screen
Full Screen
optimize your elasticsearch performance and search relevanceoptimize your elasticsearch performance and search relevanceoptimize your elasticsearch performance and search relevance

About this gig

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


  • Programming language

    • Java

  • Expertise

    • Debugging
    • Performance
    • Security
    • Operating systems
    • Databases

  • Frontend framework

    • Angular
    • Backbone.js
    • Next.js
    • React.js
    • Vue.js

  • Backend framework

    • Express.js
    • NestJS
    • Next.js
    • Node.js
    • Spring

Get to know Serhii T

Serhii T

Elasticsearch, AI Search Engineer, 8 Years Production Experience

  • FromPoland
  • Member sinceApr 2026
  • Avg. response time4 hours

  • Languages

    English, Ukrainian, Russian
Elasticsearch & AI Search Engineer, 8+ years production experience. I deploy, optimize, and scale search infrastructure for enterprise systems. Core skills: - ES deployment, performance tuning, relevance optimization - Multi-tenant search architecture - RAG pipelines & AI search (LangGraph, Qdrant) - Docker & Kubernetes for search clusters Stack: Elasticsearch, TypeScript, NestJS, Java, Docker, Docker-Compose, K8s, Helm, RabbitMQ, Vue.js, LangGraph. Based in Poland. Open to consulting and projects.

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