AI Tutor, Croatian - Temporary

The role

You will help train and refine Grok's voice and language capabilities in Croatian. You will annotate audio and speech samples, translate and localize English text into Croatian, and help produce accurate audio data.

What you will do

• Annotate, label, and provide feedback on multilingual audio clips, voice recordings, and speech samples using proprietary tools
• Translate and localize text (UI copy, prompts, responses, and other content) from English into Croatian
• Help produce clear, natural audio data that captures intonation, rhythm, and accent
• Collaborate with technical staff to refine annotation guidelines and tools for accents, background noise, and multilingual audio

Required qualifications

• Proficiency in Croatian at CEFR C1 level or higher
• English proficiency at CEFR B2 level or higher

Nice to have

• Native proficiency in Croatian
• English proficiency at CEFR C1 level or higher
• Advanced transcription or audio annotation experience, with attention to accents, prosody, disfluencies, and variable recording quality
• Translation or localization work between English and Croatian, especially UI, product copy, or conversational text
• Voice recording, voice acting, podcasting, or related audio production experience
• Background in linguistics, phonetics, speech sciences, or work with speech/audio datasets and AI training data

Benefits

• Health insurance (eligible US-based positions)
• 401(k) plan (eligible US-based positions)
• Paid sick leave (eligible US-based positions)
• Benefits vary by employment type, location, and jurisdiction

Before you apply

• SpaceXSI is unable to provide visa sponsorship
• Must be willing to travel to a SpaceXSI site
• US-based hiring is not possible in Wyoming and Illinois

About the company

SpaceXSI is building Super Intelligence to help humanity understand the universe, including the Colossus supercomputers, Grok models, and applications such as Grok Bot, Grok Build, Grok Imagine, Grok Voice, and X.