Senior SDET Engineer Location: Mexico City, Mexico
Salary: USD $4,000/month
Role Overview We are seeking a Senior Software Development Engineer in Test (SDET) to drive quality engineering for next-generation intelligent and agentic products. This is a hands-on role combining strong software engineering and automation expertise with experience testing AI/LLM-powered applications, APIs, user journeys, and production-grade platforms.
Key Responsibilities Own end-to-end quality engineering for AI/agentic applications, APIs, UI, workflows, and platform services.

Design, develop, and maintain scalable automation frameworks for UI, API, integration, regression, and end-to-end testing.

Define testing strategies for AI/agent-based systems, including response quality, workflow validation, tool usage, guardrails, reliability, and failure scenarios.

Build automated quality gates within CI/CD pipelines to support high-confidence releases.

Develop effective test data, validate edge cases, identify defects, and drive root-cause analysis through resolution.

Evaluate performance, scalability, reliability, resilience,



and observability .

Partner with engineering, product, architecture, and AI/data teams to embed quality throughout the development lifecycle.

Drive improvements in testability, automation, developer productivity, and overall engineering quality.

Mentor team members and promote modern quality engineering and automation best practices.

Requirements Strong experience as an SDET, Software Engineer in Test, or Automation Engineer with solid software engineering fundamentals.

Hands-on expertise developing automation frameworks for UI, API, integration, and end-to-end testing .

Experience with AI/LLM-powered applications, agentic systems, or intelligent workflows is highly preferred.

Strong understanding of Agile development, CI/CD, test strategy, and continuous testing .

Experience with performance, reliability, resilience, and scalability testing.

Strong problem-solving, ownership, communication, and collaboration skills.

📌 SDET Engineer (Ciudad de México)
🏢 Hirematic Talent Solutions
📍 Ciudad de México