Hieu Do Nang

Backend Engineer with 3+ years of experience building high-concurrency Go APIs, real-time WebSocket/ROS 2 streaming systems, and AWS serverless architectures. Skilled in Clean Architecture, Redis caching, and observability.

Backend Developer (Go) at HUMANOID – Viettel (2026-04 – Present)

A centralized platform for robot operations, providing secure authentication, role-based access control, and real-time observability

• Architected secure Go (Gin) REST APIs with JWT authentication, Redis blacklist caching, and granular RBAC.
• Implemented asynchronous audit logging into MongoDB for real-time user and robot traceability.
• Established centralized observability using Fluentd, Loki, and Grafana for system and log monitoring.
• Designed a Go WebSocket Broadcast Hub (/stream) for low-latency 1-to-Many telemetry distribution.
• Engineered real-time joystick teleoperation (/cmd_vel) over WebSocket with frequency safety guards.
• Developed a Python ROS 2 Bridge (roslibpy) for live discovery and diagnostics of topics, services, and nodes.

Backend Developer (Go) at KCLOUD - FPT Software (2023-04 – 2026-04)

Backend platform for remote robot operations: managing jobs/tasks, generating commands, tracking execution status, and maintaining reliable cloud-to-robot communication

• Built 35+ Go serverless REST APIs using 5-layer Clean Architecture with >90% test coverage.
• Designed DynamoDB Single Table access with GSIs, cursor pagination, and JSON Schema validation.
• Orchestrated robot workflows via DynamoDB Streams, and SQS/SNS DLQ.
• Integrated AWS IoT Core (MQTT) for real-time bidirectional telemetry tracking.
• Optimized AWS Cognito authentication and authorization flows using Redis cache-aside for high-performance session management.
• Developed Go E2E scenario test tool (37+ APIs) and enforced CI/CD security/race scanning

Bachelor of Engineering in Control Engineering and Automation – Hanoi University of Science and Technology (2018-09 – 2023-05)