> Markdown version of [/jobs/ext/3444790-language-engineer-mexican-spanish-global-siri](https://www.wearedevelopers.com/jobs/ext/3444790-language-engineer-mexican-spanish-global-siri). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Language Engineer (Mexican Spanish), Global Siri - **Company:** Apple - **Location:** Barcelona, Spain - **Contract:** Permanent contract - **Skills:** Data Analysis, C++ (Programming Language), Machine Learning, Natural Language Processing, Object-Oriented Software Development, User Environment Management, Large Language Models, Swift (Programming Language), Siri, Information Technology, Data Analytics, Objective C++, Data Generation - **Published:** September 3, 2026 - **Apply:** https://es.indeed.com/viewjob?jk=a53515233727f2fe ## About the Role Ability to analyze data and make data-driven decisions to improve user experience for the Spanish speaking market Good understanding of Data Generation Approaches, LLM fine-tuning, and optimization Ability to formulate a research problem, design, experiment, implement and communicate solutions. Product-focused with a strong emphasis on end-user experience. Experience writing software in Swift, Objective-C, C++ or C; experience on Apple platforms preferred, Professional-level fluency in Mexican Spanish, with deep familiarity with the culture and idiom of Mexico or other Latin American Spanish-speaking regions. Proven experience in applying machine learning and NLP techniques to deliver products, with a solid understanding of ML concepts Strong skills in object-oriented software design and programming, and experience with working on large code bases M.S, Ph.D. in Computer Science or a related field, or equivalent experience