Angel Mandujano

Software Engineer

Building urbanhubtrack.com, a multi-tenant real-time GPS tracking SaaS as sole engineer across backend, frontend, infrastructure and deployment; in pilot with its first client. Wrote the route optimization module in Python with Google OR-Tools and chose Supabase for authentication and realtime subscriptions.

TypeScriptPythonReactSupabaseDrizzleZodOR ToolsDockerGitHub Actions

Associate Software Engineer

Contributed to migrating a legacy C++ trading rules engine to Java for a mission-critical securities-markets system, translating its rules and SQL query layer while preserving behavioral compatibility. Built Java and Spring Boot services for financing applications, including event-sourced flows with Akka, and wrote Cucumber (BDD) tests.

JavaSpring BootAkkaCucumberSQL ServerAzure

Software Engineer

Designed and built a Golang API Gateway providing authentication and rate limiting on Kubernetes. Built KYC integrations, wallet authentication and digital-asset purchase flows on Ethereum and Solana in TypeScript and NestJS, and designed an asset-gated ticket sales SaaS with the product owner.

TypeScriptNestJSGoJavaPub SubPostgreSQLMongoDBStripeKubernetesGCPAWS

Principal Application Engineer

Oracle Mexico

Designed ML data-preparation pipelines and REST endpoints in Python and Java for multiple internal teams, orchestrating the workloads on Kubernetes and Kubeflow in Oracle Cloud with MLflow tracking.

PythonJavaSpring BootKubernetesKubeflowMLFlowOCIOracle JET

Backend Engineer / Data Scientist

Built the backend of a real-time IoT sensor platform (Kafka ingestion, Apache Camel and Spring Boot integrations, WebSocket delivery) and architected its data lake on AWS.

JavaSpring BootApache CamelKafkaWebSocketsAWSAthenaDynamoDBSagemaker