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Build an Evaluation Harness for an Internal LLM Assistant

FreeVerified credential3 weeksAdvanced

Overview

What this challenge is about.

You will design and implement an evaluation harness in Python that runs four test suites: (1) helpfulness (LLM-as-judge with rubric), (2) factual grounding (compare cited sources to retrieved sources), (3) refusal of harmful content (use a small public harmful-prompt benchmark), (4) prompt-injection resistance (curated attacks). Populate ~120 cases per suite. Run it against an open-weight model (e.g., Qwen2.5 14B) and a frontier-API model. Deliver: harness code, test cases, scored results, and a 4-page selection memo with caveats and re-run instructions.

CredentialBlockchain-anchored
ShareableLinkedIn-ready
LanguageEnglish
PaceSelf-paced

The Brief

What you'll do, and what you'll demonstrate.

Build a reusable LLM evaluation harness that covers helpfulness, grounding, refusal, and prompt-injection resistance, and use it to pick a base model.

Earning criteria — what you'll demonstrate

  • Design an evaluation harness that covers safety and quality dimensions
  • Apply LLM-as-judge with rubrics and inter-rater calibration
  • Test for prompt injection with a meaningful threat model
  • Communicate evaluation results as a model-selection decision

Program Fit

Where this fits in your program.

Sharpens the same skills your degree expects you to demonstrate.

Skills

Skills you'll demonstrate.

Each one shows up on your verified credential.

Careers

Roles this prepares you for.

Real titles. Real skill bridges. Pick the one closest to your trajectory.

AI Safety Researcher

Building a multi-dimensional LLM evaluation harness is core safety-research work at any enterprise-AI vendor.

This challenge sharpens

  • llm-evaluation
  • prompt-injection-testing
  • grounding-evaluation

ML Researcher

Designing test cases and judge calibration is the methodological core of LLM-as-judge research.

This challenge sharpens

  • llm-as-judge
  • benchmark-design
  • llm-evaluation

AI Engineer

Wiring a reusable evaluation harness into the engagement workflow is the AI-engineer skillset that consultancies hire for.

This challenge sharpens

  • python
  • llm-evaluation
  • benchmark-design

One more thing

You can put a credential on your CV by Friday.

Build an Evaluation Harness for an Internal LLM Assistant | Ewance Challenge