Senior Software Development Engineer in Test (SDET), QA - AI Systems (Fully Remote)

Nexxa.AI; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

Nexxa.AI in the United States seeks a Senior SDET to own quality for its AI agents, blending automation with hands-on testing across ML and backend components. You will build test frameworks, evals, simulators, and CI/CD quality gates; conduct exploratory testing, trace reviews, red-teaming, and release verification to ensure robust deployments.

The ideal candidate has 5+ years in SDET/QA, strong Python, CI/CD, and API testing, plus hands-on LLM/AI agent testing and eval frameworks, thriving in

Qualifications

• 5+ years SDET/QA experience in software development or quality engineering.
• Strong Python, CI/CD and API testing skills demonstrated in complex systems.
• Hands-on testing of LLM/AI agents and evaluation frameworks.

Responsibilities

• Build test frameworks, evals, simulators, and CI/CD quality gates.
• Run exploratory testing, trace reviews, red-teaming, and release verification.

Skills

Python

CI/CD

API testing

LLM/AI testing

Exploratory testing

Job description

• Senior SDET owning quality for Nexxa's AI agents, blending automation with hands-on testing.
• Partner with ML, backend, and Forward Deployed Engineers to define 'good' agent behavior.

Key Responsibilities:

• Build test frameworks, evals, simulators, and CI/CD quality gates.
• Run exploratory testing, trace reviews, red-teaming, and release verification.

Qualifications & Fit:

• 5+ years SDET/QA with strong Python, CI/CD, and API testing.
• Hands-on LLM/AI agent testing, eval frameworks, comfort with ambiguity.

Nexxa.AI

Nexxa.AI builds AI systems for heavy industry, enabling autonomous operations across manufacturing, logistics, and infrastructure. The team values innovation, discipline, and continuous improvement, with strong growth opportunities.