Arabic Linguist AI & TTS

About Unifonic

Unifonic is an AI-native customer experience platform with over 25 years of conversational AI research and development. The company serves more than 5,000 enterprises across MENA, focusing on sovereign, agentic AI through its Agentic Studio platform. Unifonic is recognized as a Great Place to Work®.

The Engineering Team

The Engineering team at Unifonic is responsible for the design, development, and maintenance of the systems and technologies that power Unifonic’s solutions. This team collaborates with other departments to ensure products and services meet customer needs. Candidates passionate about technology and communication solutions are encouraged to apply.

Role Overview: Arabic Linguist – AI & TTS

Unifonic is seeking an Arabic Linguist to join its team in Riyadh, Riyadh Province. This part-time role supports the Text-to-Speech (TTS) team by providing linguistic analysis, Arabic dialect expertise, pronunciation and speech-quality evaluation, and assistance with voice-related projects. The position involves contributing linguistic expertise to production projects and enhancing the quality, accuracy, and naturalness of Arabic speech technology.

Key Responsibilities

• Conduct research on the phonological, morphological, and syntactic structures of Arabic, with a focus on Modern Standard Arabic (MSA) and Saudi/Gulf dialects, particularly the Najdi dialect.
• Provide linguistic guidance for the integration of Arabic linguistic structures into Sestek products.
• Act as a linguistic point of contact for the R&D / AI team.
• Translate linguistic requirements into clear, actionable input for engineers.
• Analyze and review pronunciation data, including grapheme-to-phoneme mappings, diacritization/tashkeel, and lexicons, for Arabic TTS and speech recognition systems.
• Evaluate TTS output quality in terms of pronunciation accuracy, prosody, dialect authenticity, and naturalness, with a particular focus on Saudi Arabic.
• Provide linguistic guidance and support for Arabic voice data collection and speech synthesis projects.
• Identify and onboard suitable voice talents when needed.
• Support the coordination and review of voice recording and editing processes to ensure linguistic accuracy and consistency.
• Support the onboarding and coordination of external Arabic language consultants when needed, providing guidance on linguistic requirements.
• Review and provide linguistic feedback on data annotation activities and guidelines, ensuring appropriate quality standards for Arabic and Saudi dialect data.
• Collaborate closely with the Sestek TTS and AI Research teams, providing ongoing linguistic expertise throughout projects.

Application Process

Unifonic values creativity, collaboration, and innovation. Individuals interested in this part-time Arabic Linguist role are encouraged to apply.