Motions Technologies Canada https://motionstechnologies.com/blog A blog created by Motions Technologies en-us jawad.arif@motionstechnologies.com (Motions Technologies) jawad.arif@motionstechnologies.com (Motions Technologies) Mon, 10 Aug 2026 00:00:00 GMT https://motionstechnologies.com/blog/building-modern-marketplace-platforms Building Modern Marketplace Platforms End-to-End: Frontend, Backend, Security, Retries, and Cloud Deployment https://motionstechnologies.com/blog/building-modern-marketplace-platforms A deep dive into how we design and ship platforms like UmaMeats—Next.js and mobile clients, Spring Boot microservices on ECS, DynamoDB, Redis GEO, Kafka with DLTs and outbox, Stripe payments and identity, CORS and auth hardening, and cost-aware deployment. Mon, 10 Aug 2026 00:00:00 GMT jawad.arif@motionstechnologies.com (Motions Technologies) Software ArchitectureMicroservicesSecurityAWSECSNext.jsKafkaDynamoDBRetryDevOps https://motionstechnologies.com/blog/in-process-onnx-dynamodb-semantic-search Semantic Search Without a Second Database: In-Process ONNX and DynamoDB Vectors https://motionstechnologies.com/blog/in-process-onnx-dynamodb-semantic-search How a food-delivery catalog API on ECS adds semantic store and dish search: in-process bge-small ONNX, vectors on the same DynamoDB items, SearchVectors for retrieval, and a fail-open query parser. No embed sidecar, no second vector store. Sun, 16 Aug 2026 00:00:00 GMT jawad.arif@motionstechnologies.com (Motions Technologies) AILLMVector SearchSemantic SearchEmbeddingsONNXDynamoDBAWSECSSpring BootArchitectureCost OptimizationJavaPerformanceMobileDelivery https://motionstechnologies.com/blog/kafka-504-incident-postmortem The 60-Second Coincidence: Anatomy of a 504 That Was Never the Broker's Fault https://motionstechnologies.com/blog/kafka-504-incident-postmortem A courier taps accept, waits, and gets HTTP 504. Isolating producer vs consumer vs broker, why 60 seconds is a fingerprint, and the DynamoDB putItem pattern that can wipe credentials on a hot path. Thu, 13 Aug 2026 00:00:00 GMT jawad.arif@motionstechnologies.com (Motions Technologies) KafkaIncident ResponseSpring BootAWSECSDynamoDBObservability https://motionstechnologies.com/blog/spring-boot-4-parent-pom-migration Migrating a Fleet of Spring Boot APIs with a Shared Parent POM https://motionstechnologies.com/blog/spring-boot-4-parent-pom-migration How we migrated a dozen Spring Boot APIs to Boot 4 and a modern JDK using a bank-style parent POM, DynamoDB SDK v2 migration, and smoke tests as the promotion gate. Thu, 06 Aug 2026 00:00:00 GMT jawad.arif@motionstechnologies.com (Motions Technologies) Spring BootJavaMavenMicroservicesAWSDynamoDB