> Markdown version of [/jobs/ext/3087954-language-engineer-polish-global-siri](https://www.wearedevelopers.com/jobs/ext/3087954-language-engineer-polish-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 (Polish), Global Siri - **Company:** Apple - **Location:** Barcelona, Spain - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, C++ (Programming Language), Decision Support Systems, Python (Programming Language), Performance Tuning, Software Engineering, User Environment Management, Retrieval-Augmented Generation, Transfer Learning, Large Language Models, Swift (Programming Language), Siri, Information Technology, Production Code, Machine Learning Operations, Objective C++ - **Published:** September 26, 2026 - **Apply:** https://www.buscojobs.com.es/language-engineer-polish-global-siri-en-barcelona-ID-372905711 ## About the Role Compensaciones / Beneficios * Lead design and implementation of large-scale ML and GenAI solutions for the Polish market * Serve as technical anchor for Polish localization, collaborating with Apple teams * Work across ML, data, and software engineering to deliver end-to-end systems * Apply LLMs, agentic approaches, tool calling, and retrieval-augmented generation in production * Adapt models for multilingual and cross-lingual contexts and low-resource settings * Evaluate, fine-tune, and optimize models for inference and user experience * Contribute to scalable software development on Apple platforms using Python, Swift, Objective-C, C++, or C Responsabilidades * Hands-on experience with large language models: fine-tuning, prompt/context engineering, evaluation, inference optimization * Experience with speech technologies (ASR, TTS, pronunciation modeling) * Multilingual and cross-lingual modeling, transfer learning, or low-resource adaptation * Ability to define research problems, design experiments, implement solutions, and communicate results * Strong product focus and end-user experience orientation * Proficiency in Python, Swift, Objective-C, C++ or C; Apple platforms experience preferred * MS or PhD in Computer Science or related field, or equivalent practical experience * Professional fluency in Polish with deep cultural understanding * Experience applying ML/NLP to deliver products; solid software design and production code experience * Experience handling data at scale, dataset curation, analysis, and data-driven decision making Requisitos principales * ## Description Experteer Overview You will anchor Siri's Polish market, shaping end-to-end ML and GenAI solutions that deliver native, culturally aware experiences.You'll work across ML, data, and software to deploy scalable systems, fine-tune LLMs, and adapt models for multilingual contexts.This role combines research with production impact, collaborating with global partner teams to scale a world-class voice assistant.You'll help drive meaningful user experiences for millions of customers while advancing Siri's global AI foundation.Compensaciones / Beneficios * Lead design and implementation of large-scale ML and GenAI solutions for the Polish market * Serve as technical anchor for Polish localization, collaborating with Apple teams * Work across ML, data, and software engineering to deliver end-to-end systems * Apply LLMs, agentic approaches, tool calling, and retrieval-augmented generation in production * Adapt models for multilingual and cross-lingual contexts and low-resource settings * Evaluate, fine-tune, and optimize models for inference and user experience * Contribute to scalable software development on Apple platforms using Python, Swift, Objective-C, C++, or C Responsabilidades * Hands-on experience with large language models: fine-tuning, prompt/context engineering, evaluation, inference optimization * Experience with speech technologies (ASR, TTS, pronunciation modeling) * Multilingual and cross-lingual modeling, transfer learning, or low-resource adaptation * Ability to define research problems, design experiments, implement solutions, and communicate results * Strong product focus and end-user experience orientation * Proficiency in Python, Swift, Objective-C, C++ or C; Apple platforms experience preferred * MS or PhD in Computer Science or related field, or equivalent practical experience * Professional fluency in Polish with deep cultural understanding * Experience applying ML/NLP to deliver products; solid software design and production code experience * Experience handling data at scale, dataset curation, analysis, and data-driven decision making Requisitos principales * ## Related Videos - [Designing the Future of Human<>Agent Collaboration](https://www.wearedevelopers.com/videos/1447-designing-the-future-of-human-agent-collaboration) - [An (In-)Complete Guide to C++ Object Lifetimes](https://www.wearedevelopers.com/videos/1060-an-in-complete-guide-to-c-object-lifetimes) - [Lessons from Steve Jobs - Learnings from the Past for the Future](https://www.wearedevelopers.com/videos/1021-lessons-from-steve-jobs-learnings-from-the-past-for-the-future) - [Harnessing Apple Intelligence: Live Coding with Swift for iOS](https://www.wearedevelopers.com/videos/1515-harnessing-apple-intelligence-live-coding-with-swift-for-ios) - [Dirty Tests And How To Clean Them](https://www.wearedevelopers.com/videos/515-dirty-tests-and-how-to-clean-them) - [SwiftUI In Production](https://www.wearedevelopers.com/videos/134-swiftui-in-production) ## Related Articles - [What Are Large Language Models?](https://www.wearedevelopers.com/magazine/304-what-are-large-language-models) - [MLOps And AI Driven Development](https://www.wearedevelopers.com/magazine/82-mlops-and-ai-driven-development) - [Navigating the AI Shift](https://www.wearedevelopers.com/magazine/629-navigating-the-ai-shift) - [How to Become an AI Engineer](https://www.wearedevelopers.com/magazine/331-how-to-become-an-ai-engineer) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline)