Amos Preston

Built full-stack features across Python backend services and React interfaces supporting automation tools workflows and customer-facing systems. Designed AI agent workflows including multi-step task retrieval, grounding, validation layers, monitoring, and API tool calling. Implemented RBAC-based access, logging, and safety boundaries for reliable multi-tenant deployments. Created dashboards and UI tools for configuring, observing, and debugging agent systems, and deployed containerized services on AWS using ECS Fargate with ALB, S3, and Redis. Drove reliability improvements via observability metrics, circuit breakers, and automated CI/CD pipelines with GitHub Actions. Mentored engineers on Python async design patterns and architecture.

Built backend microservices in Python and Node powering workflow automation, data processing, and asynchronous operations. Integrated external APIs and databases with consistent contract validation and error handling. Designed caching and queuing flows using Redis and event-driven work loads. Implemented OAuth 2.0/JWT-based security and RBAC for multi-tenant apps. Created internal dashboards for debugging, tracing, and monitoring distributed components. Deployed containerized services on AWS (Docker, ECS, S3) and authored engineering docs and code reviews.

Built backend logic in Python, JavaScript, and C# with clean architecture patterns and consistent API behavior. Developed full-stack features using React and server-side modules, including ETL pipelines for structured and unstructured inputs. Worked with cloud services, storage, event queues, and identity providers to enable secure deployments. Wrote onboarding guides, architecture diagrams, and testing strategies for engineering teams.