AI Linguist

At Sabio Group, we're dedicated to fostering an environment where employees thrive. Since 1998, we've built a dynamic culture that is both challenging and fun, driven by a team of ambitious, knowledgeable individuals who are passionate about leading the CX revolution. We're seeking creative, resourceful people to join our fast-growing organisation, where you'll have the opportunity to develop your skills and contribute to a culture of continuous learning.

We work with some of the world’s largest organisations across various industries, delivering exceptional digital customer experiences through our unique blend of expertise, technology, and insight. As one of Europe’s fastest-growing providers of CX transformation solutions, we’re committed to sustainability, diversity, and inclusion, ensuring our workforce reflects the diverse society we serve. Join us and help shape the future of customer experience.

Requirements

gathering, conversation design, development, unit & integration testing, deployment, and post‑production support . You will craft user intents, dialogue flows, prompts/guardrails, and linguistic resources; train/evaluate NLU/LLM-based components; and continuously optimize performance, accuracy, and customer experience in Spanish (and other supported languages).

Elicit business goals, user journeys, intents/entities, FAQs, and deflection targets with stakeholders (CX, Operations, Legal).

into measurable NLU/LLM specs and acceptance criteria. Conversation & Language Design Design intents, entities, dialogue flows, handoffs, error recovery, and tone of voice. Author prompts, system instructions, tool-use policies, and safety guardrails.

Create high‑quality utterance datasets, synonyms, lexical/regex patterns, and grammars. Modeling & Development Build and fine‑tune NLU/LLM components (classification, NER, summarization, RAG over knowledge bases). Configure ASR/TTS for omnichannel (voice/chat/messaging).

Implement data quality checks, PII redaction/anonymization, and prompt/content moderation. Testing & Evaluation Define and execute unit, integration, regression, A/B, and user acceptance tests. Evaluate with task metrics (containment, deflection, FCR, AHT impact, CSAT), and model metrics (precision/recall, F1, latency, hallucination rate).

Deployment & Operations Support CI/CD pipelines, release notes, and rollback plans. Monitor production with analytics dashboards, conversation reviews, error triage, and incident response. Drive continuous improvement via data‑driven tuning and content updates.

Governance & Compliance Ensure GDPR/LOPDGDD compliance, consent, data minimization, and retention policies. Apply Responsible AI practices (bias/fairness checks, safety red‑teaming, documentation). Cross‑Functional Collaboration Partner with Contact Center Ops, QA, Knowledge Management, CRM teams, and vendor partners.

Provide enablement materials and training for agents and supervisors. ) involving conversational flows, open questions, automation, NLU technologies (voice recognition, classification, voice synthesis), and generative AI.

gathering, design, validation, etc. Experience in recognition models (SST, TTS, NLU) as well as in their training or continuous improvement: Microsoft STT, MS LUIS/CLU, Google, Amazon, Nuance Recognizer. Experience in improving UX at the design, development, analysis, and continuous improvement levels of NLP associated with bots.

Experience in designing, writing, and improving AI prompting under different LLM models.