Senior Automation Tester in Python

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Description

We are looking for a Senior Automation Tester in Python to join our team and build an Enterprise Agent Development Platform — a production-grade, cloud-native ecosystem that enables engineering teams to define, orchestrate, deploy, and observe AI agents at scale. The platform standardizes agent development across the organization using LangGraph and Strands Agents on AWS AgentCore Runtime. The initiative spans agent framework design, runtime architecture, marketplace integration, CI/CD automation, and enterprise-grade observability — reducing agent development from months to days while enforcing consistent security, quality, and governance standards. You will own functional, security, and performance test suites for the agentic gateway. Responsibilities Design and execute test suites for agentic workflows, including tool discovery, tool invocation, and multi-step agent workflows Validate MCP protocol behavior, including tool list aggregation, tool call routing, and streaming response handling Verify agent authorization mechanisms, including unauthorized tool access attempts and policy enforcement validation Conduct agent performance testing covering tool discovery latency, concurrent agent sessions, and agent-to-agent latency Build Python-based test automation using pytest with async support, mock MCP servers, and agent workflow simulation Validate agentic observability, including trace completeness, agent step logging, and audit trail verification Collaborate with engineerin

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