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Gen AI Engineer

Lorven Technologies
17 hours ago
Full-time
On-site
Gen AI Engineer

Position: Contract

Location:

Mountain View (hybrid) - Remote also fine.

Duration: 12+ months

Job description:

Core Responsibilities

1. Evaluation & Metrics (Primary Focus) • Define and measure:

o Accuracy (primary metric)

o Precision, recall, confusion metrics

o Hallucination rate

o Faithfulness / grounding • Build ground truth datasets • Evaluate retrieval:

o Precision@k

o Recall@k • Perform:

o Prompt A/B testing

o Bias reduction

2. Evaluation Tooling • RAG / RAGAS • Databricks / MLflow • Arize, TruLens (production monitoring) • DeepEval (CI/CD integration) • LangSmith (enterprise) • LLM-as-judge frameworks

3. GenAI Workflow Orchestration • Control flow and logging • Memory management • Observability pipelines • Document comparison workflows

4. Agentic AI Evaluation • Measure:

o Tool correctness

o Agent success rate • Use:

o LLM-as-judge for agent evaluation

5. Observability • Monitor:

o Latency

o Token/cost usage

o Response quality

o Hallucination trends

o Retrieval accuracy

6. System Thinking • Structured problem-solving • Metric-driven decision making • Clear articulation of tradeoffs:

o Precision vs recall

o Cost vs performance

Engineering Requirements • Strong Python (data + evaluation focus) • Strong analytical thinking (more important than complex coding)

Nice to Have • Cost optimization awareness • Platform tradeoff understanding

Key Hiring Insight

Most candidates fail because they: • Lack depth in evaluation frameworks • Cannot clearly explain metrics or evaluation methodology