Senior Quality Assurance Reviewer, Principal Consultant (Part-Time)

Be the last expert to look at a deliverable before it reaches the client. We promise our client that a senior reviewer who did not produce the work will approve every final deliverable. That reviewer needs to be someone who has seen enough analyses to know when a number looks too clean, a comparison is not fair, or a conclusion goes further than the data. You work only when there is something to review, and your sign-off carries real weight. What you'll do Review and approve final deliverables for analytical soundness, traceability to source data, material limitations, conformance with scope, and acceptance criteria. Check that findings are supported, that data gaps and uncertainty are stated, and that AI-assisted results were validated by a person. Document required corrections, confirm they were made, and record your approval. Advise Task Leads on analytical approach when asked, before work reaches final review. Stay independent: you never review work you helped produce. Required qualifications Advanced degree (master's or doctorate) in data science, statistics, economics, or a related field, or equivalent experience. At least 15 years of professional experience in analytics, data science, or applied research, including leading complex analytical engagements. A record of reviewing other people's quantitative work and giving direct, specific feedback. Experience with large datasets drawn from many sources with inconsistent definitions. Clear, concise writing, since your revi