French Customer Service Specialist – AI Project

Lisbon Portugal On-site
International & Multicultural Team

Start Date: 27 August 2026

Are you fluent in French and English and passionate about technology AI and analytical work Join a global team working on an exciting Generative AI project where your language expertise and attention to detail will help improve the quality accuracy and safety of next-generation AI technologies.

As a Customer Service Specialist on an AI-focused project you will review evaluate and annotate AI-generated content while ensuring high standards of quality accuracy and compliance.

Your responsibilities will include:

• Evaluate AI-generated responses using detailed quality and annotation guidelines.

• Accurately label and annotate language model outputs with consistency and attention to detail.

• Assess content for quality relevance factual accuracy safety and policy compliance.

• Apply complex annotation guidelines across a wide range of scenarios and content types.

• Identify inconsistencies edge cases and potential issues escalating them when necessary.

• Review and analyze structured text language data and AI-generated content.

• Meet productivity accuracy and quality targets in a fast-paced environment.

• Maintain strict confidentiality and follow all project data security and quality requirements.

• Contribute to the continuous improvement of AI models through accurate evaluations annotations and actionable feedback.

• Collaborate with internal teams to continuously improve quality processes.

Native-level French both written and spoken
Good command of English (B2 or higher)
Strong understanding of Generative AI Large Language Models (LLMs) and AI evaluation/annotation platforms
Excellent analytical thinking and attention to detail
Ability to interpret and consistently apply detailed written guidelines
Strong written communication and reading comprehension
Ability to make objective evidence-based decisions
Comfortable working independently while maintaining high-quality standards
Customer-service mindset and professional communication skills

Experience in one or more of the following areas is a plus:

• AI Data Annotation

• LLM Evaluation

• RLHF (Reinforcement Learning from Human Feedback)

• SFT (Supervised Fine-Tuning)

• Quality Assurance (QA)

• Content Labeling

• Trust & Safety

• Content Moderation

• Data Analysis or similar analytical roles

• Base Salary: 930 gross/month 14 payments

• Complexity Bonus: 200 gross/month 11 payments

• Food Allowance: 7.63 per working day

• Full training and continuous support

• Career development opportunities

• Full-time employment

• International and multicultural working environment

• Opportunity to gain valuable experience in the rapidly growing AI industry

• Full-time

• 24/7 rotational shifts

• Monday to Sunday

• 2 rotational days off per week

• On-site in Lisbon

• Flexibility to work across different shifts is required.

• Start date: 27 August 2026

• No vacations planned for the next 6 months

• Full availability to work 24/7 in rotational shifts

Work on an innovative AI project shaping the future of technology

Gain hands-on experience in Generative AI and LLM evaluation

Join an international and multicultural team

Develop your analytical and language expertise

Enjoy a stable full-time opportunity in Lisbon Portugal

Benefit from training support and career development opportunities

Ready to help shape the next generation of AI experiences Apply now and become part of this exciting project!