Research engineer

Join our team as Research engineer Ljubljana, Slovenia Apply now About The Role We’re looking for a Research engineer to join Soniox and help shape the future of real-time, multilingual speech and language AI. You’ll work at the intersection of cutting-edge research and high-performance engineering, turning state-of-the-art models into scalable, production-grade systems used by developers and enterprises worldwide. This is a hands-on role where you’ll move fast, solve hard problems, and help bridge the gap between AI research and practical impact. If you’re excited about deploying LLMs, speech models, and real-time systems that power intelligent voice interfaces, Soniox is the place to make it happen. In This Role, You Will Turn research into reality: Deploy and optimize transformer-based models for real-time inference across speech recognition, translation, and language understanding.Collaborate deeply: Work alongside researchers, engineers, and product leaders to design experiments, run evaluations, and ship features that improve user experience and performance.Build and optimize pipelines: Develop robust training, fine-tuning, and evaluation pipelines to continuously improve model performance and scalability.Own the system end-to-end: From prototyping new architectures to monitoring deployed models in production, you'll be responsible for building AI that works reliably in the real world.Stay on the edge: Keep up with the latest advances in AI, experiment with novel techniques, and help Soniox stay ahead in accuracy, speed, and efficiency. You Might Thrive In This Role If You Have a strong background in deep learning, NLP, or speech technologies, and experience with transformer models (LLMs, ASR, MT, etc.).Are proficient in PyTorch and familiar with distributed training, fine-tuning techniques (LoRA, distillation, RLHF, etc.), and inference optimization.Have experience working with real-time or high-throughput systems, and care deeply about latency, reliability, and performance.Enjoy fast-paced environments where priorities evolve, and you're comfortable owning loosely scoped problems from start to finish.Have a Master’s or PhD in Computer Science, AI, or a related field—or equivalent practical experience.Bonus: Experience with ASR models, retrieval-augmented generation (RAG), or conversational reasoning systems. Why Soniox You’ll help build one of the most technically advanced AI platforms in the world — and shape how it reaches and supports users globally. You’ll work directly with a world-class team of engineers and researchers solving frontier problems in speech and language AI. You'll have a voice in how our company grows, how our customers succeed, and how AI transforms human communication. Ready to join Soniox? Apply now