Quality Control Annotator – Mathematical Reasoning Remote in UK

London - UK

Monthly Salary: Not Disclosed

Posted on: 4 hours ago

Vacancies: 1 Vacancy

Job Summary

Work Location: Anywhere in Europe Fully Remote

Estimated Weekly Workload: 10 hours

Engagement Model: Independent Contractor/Freelance

Estimated Project Duration: up to 6 months

Estimated Start Date: March 23rd 2026

At DataForce by TransPerfect we are looking for professionals with a strong background in mathematics to perform quality control on solution hints for complex mathematical problems. The problems are comparable in difficulty to those found in the International Mathematical Olympiad (IMO). Our ideal candidate has strong logical reasoning skills and advanced mathematical training with experience in competition-level mathematics academic research or mathematically intensive industry roles (e.g. professors researchers PhD students data scientists quantitative analysts or engineers).

Role Summary

Quality Control Annotators will review and evaluate hints written by another team of annotators ensuring they meet defined standards for logical reasoning mathematical correctness and quality of explanation. This role focuses exclusively on review and validation; Quality Control Annotators will not generate original hints.

Key Responsibilities

Review solution hints for advanced mathematical problems (IMO-level difficulty).

Evaluate hints using defined QC criteria including:

Logical soundness and coherence

Mathematical correctness

Adequacy of the reasoning provided

Identify and flag hints that are incorrect incomplete or weak.

Provide structured feedback following project guidelines and tools.

Communicate with the project team and client when clarification is needed.

Job Requirements

Strong logical reasoning skills.

Advanced background in mathematics ideally with experience in competition-level problem solving (e.g. Olympiad training) or mathematical research.

Ability to critically evaluate complex mathematical arguments.

Proficiency in English (native level not required).

Clear written communication skills especially for explaining mathematical reasoning.

DataForce by TransPerfect is part of the TransPerfect family of companies the worlds largest provider of language and technology solutions for global business with offices in more than 100 cities worldwide.

We offer high-quality data for Human-Machine Interaction to some of the most prestigious technology companies in the world. Our department focuses on gathering enriching and processing data for Machine Learning in different AI domains.

To learn more about DataForce please visit us at

Work Location: Anywhere in Europe Fully RemoteEstimated Weekly Workload: 10 hoursEngagement Model: Independent Contractor/FreelanceEstimated Project Duration: up to 6 monthsEstimated Start Date: March 23rd 2026At DataForce by TransPerfect we are looking for professionals with a strong background in ...