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Principal Backend QA Engineer (AI)

United States🌐 Remote💼 Full-time🗓 2026-09-08 → 2026-09-29

Core

Design automated test frameworks and validate non-deterministic AI systems (agents, chatbots) using LLM-as-a-Judge techniques and API automation.

Role type

Senior IC backend QA engineer (AI validation)

Builds

Automated test suites for AI agents and backend microservices

Domain

AI/ML engineering and backend infrastructure

Deliverable

production ML models

Required skills

API test automation, Karate Framework, Postman, LLM evaluation (LLM as a Judge), non-deterministic system testing, source code analysis, microservices architecture validation, shift-left testing, OpenAPI/Swagger specification analysis

Preferred skills

Agent Development Kit (ADK), MCP applications, contract testing

Technologies

Karate, Postman, OpenAPI, Swagger, ADK, MCP

Responsibilities

Analyze OpenAPI/Swagger specs to design comprehensive test plans; Test and evaluate non-deterministic AI outputs and internal AI agents; Inspect source code and upstream services to identify critical dependencies; Configure local development environments for early-stage testing; Design scalable test automation strategies integrating AI capabilities.

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