Finance Data Annotation Quality Analyst

Mistral; France; Hybrid; EUR 45,000 - 60,000; Full time

Benefits offered by this job

Healthcare coverage

Relocation support

Meal and transportation allowances

Job summary

Mistral is seeking highly motivated Data Quality Analysts with strong analytical skills to join our Human Data Annotation team within the Science organisation. This is a hybrid quality reviewing and tooling role: auditing Finance annotations and improving data quality for AI models.

You’ll collaborate with annotators, program managers, and science stakeholders to refine guidelines and build internal tools, dashboards, and automation to streamline reviews and edge-case handling.

Qualifications

• Masters in Finance (or equivalent)
• 3+ years professional experience in the financial domain
• Excellent analytical and research capabilities
• Ability to read JSONL files and basic output formats
• Strong judgement with complex instructions and limited data
• Excellent communication and organizational skills
• Adaptable to changing requirements and repetitive tasks
• Professional English writing and comprehension skills

Responsibilities

• Review and audit finance annotations to meet rubrics for AI training/evaluation
• Generate and validate high-quality finance-oriented data annotations when needed
• Build and maintain internal tools and automation to streamline annotation workflows
• Troubleshoot tooling and guideline issues for annotators
• Organise annotator training and coordinate feedback between annotators and reviewers

Skills

Finance data domain

Data quality

Analytical skills

English proficiency

Education

Masters in Finance

Tools

Python

Unix

Git

Job description

About Mistral

Mistral provides full-stack AI solutions: from frontier models to developer tools, applications, and compute. We partner with enterprises tackling the hardest problems across high-stakes industries like finance, manufacturing, defense, healthcare, and the public sector, co-creating customized AI systems that they can run on their terms.

About Mistral

Mistral provides full-stack AI solutions: from frontier models to developer tools, applications, and compute. We partner with enterprises tackling the hardest problems across high-stakes industries like finance, manufacturing, defense, healthcare, and the public sector, co-creating customized AI systems that they can run on their terms.

We are a dynamic, collaborative team passionate about AI and its potential to transform society. Our diverse workforce thrives in competitive environments and is committed to driving innovation. Our teams are distributed between Europe, North America, Asia and the Middle East. We are creative, low-ego and team-spirited.

Role Summary

Skills

We’re seeking highly motivated Data Quality Analysts with strong analytical skills and a keen eye for detail to join our Human Data Annotation team within the Science organisation. This is a hybrid quality reviewing and tooling role:

• you'll spend the majority of your time reviewing and auditing Finance (any subdomain) annotations against rubrics to ensure data used for training and evaluating AI models meets the highest standards of quality and efficiency.
• and the remainder building, maintaining, and troubleshooting annotation operations.

You’ll collaborate closely with the annotators, technical program manager, and science stakeholders, and contribute to refining the guidelines and processes that shape how our data is produced.

Key Responsibilities

• In collaboration with the technical team, review/audit annotations, clarify requirements, share insights, surface systemic issues, edge cases, and gaps in guidelines, to improve annotation processes and guidelines.
• Generate and validate high-quality finance-oriented data annotations yourself when needed, based on guidelines and continuous feedback, for the development and evaluation of AI models
• Build and maintain internal tools and automation that streamline annotation or review workflows such as visualization dashboards, batch configuration scripts, output management utilities, and similar
• Troubleshoot campaign issues (e.g. tooling, guidelines) for annotators
• Organise annotator training and coordinate feedback between annotators and reviewers.

About You

• A degree (minimum Masters level) in a Finance discipline.
• At least 3 years of professional experience in the Financial domain.
• Outstanding analytical and research skills
• Some familiarity with programming languages, with the ability to read standard output formats such as .jsonl files.
• Exercises great judgement with complex instructions, limited data, and/or multiple information sources and ability to surface edge cases, ambiguities, or gaps in guidelines accordingly.
• Excellent communication, interpersonal, and organisational abilities
• Adapts easily to dynamic environments and changing requirements
• Appetite for operational work and high tolerance for repetitive tasks with a sustained focus and accuracy on detail-oriented, high-volume review work.
• Professional proficiency in English, with strong writing and comprehension skills

Nice to have

• Familiarity with rubric-based evaluation concepts, inter-annotator agreement, or quality measurement for human-labeled data
• Experience building an annotation team through interviews and training
• Proficient in at least one programming language (e.g. Python)
• Prior experience in data annotation for AI/ML, especially LLM training (SFT, RLHF, preference data), evals/benchmarks, or agentic data
• Comfortable working in a Unix-like terminal and using git workflows (branches, merges, resolving conflicts)

What We Offer

We offer a comprehensive benefits package designed to support your well-being, growth, and work-life balance.

Benefits vary by country and may include healthcare coverage, parental leave, retirement plans, relocation support, wellness programs, meal and transportation allowances, and other location-specific perks.

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