QA Engineer (Automation)- Dallas, TX
Photon Career Site • United States
Role & seniority: QA Automation Engineer, senior-level (10+ years in QA Automation, recent AI/ML/LLM focus)
Stack/tools: Python (expert), Pytest; AI evaluation tools (LangSmith, DeepEval, RAGAS, Promptfoo); UI/API testing (Playwright, Selenium, Cypress); data: SQL, JSON
Top 3 responsibilities
-
Design and maintain automation for probabilistic/non-deterministic AI outputs and model-based evaluation
-
Build and manage Eval pipelines and Golden Datasets to benchmark prompts/models across versions
-
Validate tool usage and API/function calls in multi-step agent workflows; monitor latency, costs, and regression effects from prompt/model changes; detect hallucinations/bias
Must-have skills
-
10+ years in QA Automation with recent AI/ML/LLM experience
-
Expert Python and Pytest; strong API/backend testing focus; UI tool experience
-
Familiarity with AI evaluation frameworks (LangSmith, DeepEval, RAGAS, Promptfoo)
-
Data validation skills (SQL, JSON) and statistical mindset for scoring metrics
Nice-to-haves
-
Experience testing Multi-Agent Systems
-
Knowledge of Prompt Engineering and its software impact
-
Background in Investment Banking/Fintech for high-stakes data accuracy
Location & work type
-
Location: not specified
-
Work type: Full-time; not available to independent contractors; benefits included (medical, vision, dental, 401k, PTO, holidays)
Full Description
We are seeking a QA Automation Engineer who is ready to move beyond traditional "Pass/Fail" testing. In this role, you will design and build automation frameworks specifically for Agentic AI products. You will focus on evaluating the performance of autonomous agents, ensuring they follow logical reasoning paths, call the correct tools, and provide accurate, safe outputs. Your mission is to build the "evaluations" (Evals) that define what high-quality AI behavior looks like, moving the needle from unpredictable experiments to production-grade software. Key Responsibilities
Non-Deterministic Testing: Develop automation strategies for probabilistic outputs, using model-based evaluation to "test the tester."
Building "Eval" Pipelines: Create and maintain "Golden Datasets" to benchmark agent performance across different versions of prompts and models.
Tool-Use Validation: Build automated tests to verify that agents call the correct functions/APIs with the right parameters in complex multi-step workflows.
Regression Testing for Prompts: Monitor how subtle changes in prompt engineering or model updates (e.g., moving from GPT-4 to Claude 3.5) affect the product’s reliability.
Latency & Token Monitoring: Integrate performance testing into the CI/CD pipeline to track agent reasoning time and cost-efficiency.
Hallucination Detection: Develop automated checks to identify and report AI hallucinations, bias, or "jailbreak" attempts.
Collaboration: Work closely with AI Engineers to translate "vague" business requirements into measurable, automated test cases. Required Skills & Qualifications
Experience: 10+ years in QA Automation, with a recent focus on AI/ML or LLM-based applications.
Python Proficiency: Expert-level Python skills (the industry standard for AI testing) and experience with testing frameworks like Pytest.
AI Testing Tools: Familiarity with AI evaluation frameworks such as LangSmith, DeepEval, RAGAS, or Promptfoo.
API & Backend Testing: Deep experience with Playwright, Selenium, or Cypress for UI, but a heavy focus on API-level testing and database validation.
Statistical Mindset: Understanding that AI testing often requires "scoring" (e.g., 85% accuracy) rather than a simple binary pass/fail.
Data Skills: Ability to work with SQL and JSON to validate data retrieved by agents during RAG (Retrieval-Augmented Generation) processes. Preferred Qualifications Experience testing Multi-Agent Systems (where one agent tests another). Knowledge of Prompt Engineering and how it influences software behavior. Background in Investment Banking or Fintech (if applicable) to understand high-stakes data accuracy. Compensation, Benefits and Duration
Minimum Compensation: USD 38,000
Maximum Compensation: USD 133,000 Compensation is based on actual experience and qualifications of the candidate. The above is a reasonable and a good faith estimate for the role. Medical, vision, and dental benefits, 401k retirement plan, variable pay/incentives, paid time off, and paid holidays are available for full time employees. This position is not available for independent contractors No applications will be considered if received more than 120 days after the date of this post