GraphRAG Developer Challenge – Legal Document Processing (Prototype)
* Role: Senior RAG Systems Developer (Contract/Freelance)
* Compensation: $600 — paid only if you pass (>95% benchmark)
* Timeline: 3–5 days from materials receipt to live demo
* Purpose: Technical evaluation for potential long-term hire
* Frontend/UI: None (backend prototype only)
* Contact: s.lilliu@revortis.com
Objective
We’re seeking an expert in graph-based retrieval (GraphRAG) to build a high-accuracy prototype for legal document reasoning. This is a paid technical test that may lead to a long-term position. The goal is a true GraphRAG system featuring explicit knowledge-graph construction and traversal, multi-hop reasoning, agentic orchestration, and strong focus on retrieval accuracy and explainability.
Materials Provided
* /docs/ → Pre-processed Markdown legal documents with metadata
* /sample_questions.json → Example question format
* /sample_answers_rag.json → Example answer format
Download materials: https://drive.google.com/drive/folders/19ZQ6cZDIe3stu0DXbXoG6p-AEQwZWdCt?usp=drive_link
(Benchmark uses unseen questions.)
Deliverable
Implement two functions in Python 3.12 (Poetry project):
def ingest(document_paths: List[str]) -> None:
"""Ingest Markdown docs and build the knowledge graph."""
def query(questions: List[str]) -> List[str]:
"""Return answers with Vancouver-style citations grounded in retrieved sources."""
Requirements: No UI, no API keys provided. Any stack may be used. query(...) must support parallel execution (~400 questions in ≤60 min) and show a progress indicator. Test thoroughly for correctness and performance before the demo.
Live Demo
In a 60-minute live session you will:
* Receive ~400 unseen questions.
* Run query(...) to produce /answers.json.
* Explain your architecture: how the graph is built, traversed, and used to generate grounded answers.
Only the developer(s) who wrote the code may present.
Evaluation
Passing requires an overall score above 95%, measured by (LLM as a judge): Faithfulness (grounded, no hallucinations), Relevance (retrieval matches intent), Completeness (covers key legal points), and Clarity (structured, legally coherent writing).
Payment & Next Steps
If you pass, you’ll receive $600 USD after verification of reproducibility and hand-over of the repo (codebase, Poetry lock, run instructions, brief tech note). Top performers may be invited to interview for a long-term paid role. Failure to pass or complete within 60 minutes = no payment (you keep your code).
Key Priorities
Parallelization, graph-based reasoning, correctness, and explainability.
Note for Agencies
We will not engage in pre-contract discussions with agencies. If an agency wishes to propose a developer, communication will proceed only after that developer passes the benchmark test. This ensures time efficiency and direct technical validation.