SOLR to OpenSearch migration

Responsibilities:

• Migrate full text search from SORL to OpenSearch
  Used technologies, tools and frameworks:
• CI/CD: GitLab CI
• DB: PostgreSQL
• Development languages: Kotlin, Java
• Full Text Search: OpenSearch, SOLR
• Message Brokers: Kafka, SNS, SQS
• DevOps: Helm, GKE, Terraform, K8S