Remote New

Backend API Engineer

AHEAD
United States
Dec 04, 2025
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 / Node.js 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.