Accounting Expert - CPA Preferred

Obsidian; Greater London; On-site; GBP 70,000 - 90,000; Full time

Job summary

Mercor partners with a leading AI research organization to engage experienced accountants in a project that designs grading criteria and scoring for real-world accounting work. You will define what excellent work looks like, provide rigorous written justifications, and ensure scores are reproducible and defensible through structured feedback and iteration with senior reviewers.

You will define what excellent work looks like and provide rigorous written justifications, ensuring scores are

Qualifications

• 5+ years of professional accounting experience.
• Background in audit, assurance, or advisory at leading global firms, or in senior accounting roles at large public companies.
• CPA or equivalent professional certification strongly preferred.
• Deep fluency in the day-to-day craft: US GAAP application, month-end close, account reconciliations, financial statement preparation and disclosures, and audit-ready workpapers.
• Exceptionally strong written communication, with the ability to explain exactly why a piece of work does or does not meet professional standards.
• Detail-oriented, consistent, and comfortable having your judgment reviewed and calibrated against peers.
• Prior experience with AI training, evaluation, or human-data projects is a strong plus.

Responsibilities

• Design precise, task-specific grading criteria for real-world accounting deliverables (reconciliations, close packages, financial statements and disclosures, workpapers, technical accounting memos).
• Score AI-generated and human work samples against those criteria, with detailed written justifications for every score.
• Apply consistent, evidence-based judgment so that scores are reproducible and defensible.
• Incorporate structured feedback from senior reviewers and iterate quickly on your work.

Skills

5+ years accounting experience

US GAAP proficiency

Strong written communication

Detail-oriented

AI training/evaluation experience

Education

CPA or equivalent certification

Job description

1. Role Overview

Mercor is partnering with a leading AI research organization to engage experienced accountants for a project focused on evaluating how well AI systems perform real-world accounting work. Rather than producing deliverables yourself, you will define what excellent work looks like: designing task-specific grading criteria and scoring completed work samples with rigorous, well-reasoned written justifications.

2. Key Responsibilities

• Design precise, task-specific grading criteria for real-world accounting deliverables (reconciliations, close packages, financial statements and disclosures, workpapers, technical accounting memos)

• Score AI-generated and human work samples against those criteria, with detailed written justifications for every score

• Apply consistent, evidence-based judgment so that scores are reproducible and defensible

• Incorporate structured feedback from senior reviewers and iterate quickly on your work

3. Ideal Qualifications

• 5+ years of professional accounting experience

• Background in audit, assurance, or advisory at leading global accounting firms, or in senior accounting roles at large public companies

• CPA or equivalent professional certification strongly preferred

• Deep fluency in the day-to-day craft: US GAAP application, month-end close, account reconciliations, financial statement preparation and disclosures, and audit-ready workpapers

• Exceptionally strong written communication, with the ability to explain exactly why a piece of work does or does not meet professional standards

• Detail-oriented, consistent, and comfortable having your judgment reviewed and calibrated against peers

• Prior experience with AI training, evaluation, or human-data projects is a strong plus