Lead / Senior QA Engineer – with Temporal and LLM, Langfuse

Dice is the leading career destination for tech experts at every stage of their careers. Our client, Vertical Falls LLC, is seeking the following. Apply via Dice today! • *Job Title Lead / Senior QA Engineer – Agentic AI Systems WITH Langfuse , Temporal 100% Remote Interview Mode2 Video 6-12 MONTHS CONTRACT We are looking for a highly skilled QA professional to build and scale a next-generation Agentic AI Quality Engineering function .

This role goes beyond traditional QA—focusing on validating autonomous AI systems, designing evaluation frameworks, and ensuring high-quality outputs across multiple AI-driven products. You will play a critical role in shaping how quality is defined, measured, and improved for agentic systems that operate with minimal human intervention. Key Responsibilities • Agentic QA Strategy & Scaling • Design and scale an agentic QA model for autonomous AI systems • Move QA from human-driven validation to AI-led evaluation and continuous quality monitoring • Establish best practices for testing AI agents across lifecycle stages • Product Quality Ownership Own QA for 3 core AI products • AI Contact Center solutions • AI Chat & Form-based interaction systems • AI Assistants (autonomous / semi-autonomous agents) • Define quality benchmarks, SLAs, and success metrics for each product • Proactively identify quality gaps ahead of customer impact • Metrics, Observability & Evaluation • Define and track performance outputs for agentic systems (accuracy, latency, resolution quality, hallucination rate, etc.) • Build frameworks for • Evals & graders (LLM evaluation pipelines) • Output scoring and benchmarking • Continuous feedback loops • Leverage tools like Langfuse for • LLM observability and tracing • Prompt monitoring and performance analysis • Debugging agent behavior in production • Analyze • Downstream issues • Production tickets • Failure patterns • Automation & Testing Frameworks • Build and scale automation across • Regression testing • Smoke testing • End-to-end agent workflows • Develop and maintain Playwright-based automation scripts • Integrate QA into CI/CD pipelines for continuous validation • Agentic Testing & Validation • Design testing approaches for • Multi-step agent workflows • Context retention and reasoning • Tool usage by agents • Work with orchestration frameworks like Temporal to • Validate long-running workflows • Test retries, state transitions, and failure handling in agent pipelines • Account for non-deterministic behavior in AI systems • Invest additional effort in agentic validation, recognizing higher complexity vs traditional QA • Continuous Improvement & Innovation • Define frameworks to predict and prevent failures before customer exposure • Continuously improve QA processes using AI and automation • Partner with Product, Engineering, and AI teams to improve system quality Required Skills & Experience • 5–10+ years in QA / Quality Engineering, with strong automation experience • Hands-on experience with • Test automation tools (Playwright preferred) • API and system testing • Strong understanding of • AI/ML systems (LLMs, conversational AI preferred) • Evaluation frameworks and benchmarking • Experience with • Temporal (workflow orchestration, stateful systems testing) • Langfuse (LLM observability, tracing, and evaluation) • Experience in • Building QA frameworks from scratch • Working with production data, logs, and issue triaging Good to Have • Experience with LLM eval frameworks, prompt testing, or AI red-teaming • Familiarity with agentic architectures / autonomous systems • Exposure to observability and analytics platforms Working Model • Prefer candidates with EST time zone overlap • Ability to work closely with global product and engineering teams What Success Looks Like • A scalable, automated QA system for agentic products • Measurable improvement in AI output quality and reliability • Reduced production issues and faster detection of failures QA evolving from reactive testing to proactive quality intelligence Apply tot his job