The Backend API Engineer will build the APIs and platform services that agents and the UI consume. They will also be responsible for performant, reliable, secure endpoints and real-time interfaces enabling token streaming, traces, and event-driven workflows.

Responsibilities

• Build APIs using FastAPI / Nodejs in AWS Lambda or ECS/EKS.
• Implement WebSocket support for streaming agent output.
• Manage routing, rate limits, token streaming, session management.
• Implement signed Bedrock calls through VPC endpoints.
• Partner with Front-End and Agent Engineers on schema contracts.
• Integrate EventBridge, SQS/SNS, SecretsManager.

Qualifications

• Production microservice experience.
• Bedrock API + token streaming experience.
• Secure API design competency.
• Strong performance optimization skills.
• Minimum – bachelor’s degree in computer science or software engineering.
• Preferred – AWS Developer certifications.

$170,000 – $200,000 a year