khalil krifi

• Designed an event-driven system that translate natural-language requests into OpenSearch DSL and PromQL queries. • Built a schema-aware LangGraph pipeline, cutting invalid query executions from 20% to 7% on a 100-query evaluation set. • Implemented Redis-backed semantic caching, reaching an 80% cache hit rate and reducing repeat query latency from 3.4s to 200ms. • Deployed services to azure with Kustomize and ArgoCD; load-tested with k6 to sustain 200 req/s at p95 latency under 500ms.

• Designed a Spring Boot microservices backend split into independently deployable services, separating business domains to support independent deployment and scaling. • Developed 40+ GraphQL APIs with Apollo and Netflix DGS for vehicle telemetry, driver allocation, and trip management. • Implemented WebSocket-based vehicle tracking and real-time alerts delivered in under 250ms; integrated Keycloak for OAuth 2.0/OIDC authentication and role-based access control.

• Built a Spring Boot microservices backend for user management, image analysis, and reporting, using Spring Cloud Gateway, Eureka, and centralized configuration. • Developed an asynchronous analysis workflow integrating PyTorch inference with Kafka-based report generation and email notifications, keeping API response time under 150ms. • Implemented secure evidence storage with

Jun 2024– Aug 2024 • Developed backend services for enterprise document management, supporting hierarchical storage, metadata tracking, ver sioning, and files up to 500 MB. • Indexed 2,000+ documents with Elasticsearch, achieving average retrieval latency below 300 ms; implemented JWT au thentication and granular role-based access control.