Full Stack Engineer
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Summary
A principal-level full stack engineer in London (hybrid) building search and AI-powered solutions, with deep focus on Elasticsearch and Azure AI Search, the broader Azure ecosystem, and GenAI/RAG tooling like LangChain or LlamaIndex.
Principal Full Stack Engineer – Azure AI Search & Elasticsearch
Location: London, UK (Hybrid)
Experience: 10+ years
Key Responsibilities & Skills:
- Deep hands-on experience with Elasticsearch, including cluster architecture, index mapping, aggregations, Lucene, performance tuning and snapshot/restore.
- Strong production experience with Azure AI Search / Azure Cognitive Search, including indexers, custom skillsets, vector search and semantic ranking.
- Good knowledge of the Azure ecosystem, including Azure Web Apps, Functions, Event Grid, Key Vault, API Management and Private Endpoints.
- Experience with Azure DevOps/GitHub Actions, Docker, Kubernetes/AKS and Terraform/Bicep.
- Experience building GenAI/RAG solutions, with technologies such as LangChain or LlamaIndex.
- Relevant Azure or Elastic certifications would be advantageous.