{"active":true,"apply_url":"https://jobs.ashbyhq.com/perplexity/b9e1ff15-d52a-46d5-abf0-26460f2a116c/application","company":{"claimed":false,"name":"Perplexity","slug":"perplexity","website":"https://www.perplexity.ai"},"countries":["DE"],"employment_type":"internship","first_seen_at":"2026-10-15T12:23:43Z","getwork_url":"https://getwork.dev/jobs/ab-perplexity-b9e1ff15-d52a-46d5-abf0-26460f2a116c/","id":"ab-perplexity-b9e1ff15-d52a-46d5-abf0-26460f2a116c","injection_flag":false,"last_seen_at":"2026-10-28T19:30:10Z","location":"Berlin; Germany","published_at":"2026-09-02T10:35:02Z","regions":["europe"],"remote":"hybrid","role_family":"ml","salary":null,"seniority":"intern","stack":["pytorch"],"stack_mentioned":[],"title":"Internship - Machine Learning Research Engineer","untrusted_description":"Internship Program Berlin\n\nInternship program: 12 - 24 weeks, full-time, in-person in the Berlin office.\n\nResponsibilities\n\n- Relentlessly push search quality forward — through models, data, tools, or any other leverage available.\n\n- Train, and optimize large-scale deep learning models using frameworks like PyTorch, leveraging distributed training (e.g., PyTorch Distributed, DeepSpeed, FSDP) and hardware acceleration, with a focus on retrieval and ranking models.\n\n- Conduct research in representation learning, including contrastive learning, multilingual, evaluation, and multimodal modeling for search and retrieval.\n\n- Build and optimize RAG pipelines for grounding and answer generation.\n\nQualifications\n\n- Understanding of search and retrieval systems, including quality evaluation principles and metrics.\n\n- Strong proficiency with PyTorch, including experience in distributed training techniques and performance optimization for large models.\n\n- Interested in representation learning, including contrastive learning, dense & sparse vector representations, representation fusion, cross-lingual representation alignment, training data optimization and robust evaluation.\n\n- Publication record in AI/ML conferences or workshops (e.g., NeurIPS, ICML, ICLR, ACL, EMNLP, SIGIR).","url":"https://jobs.ashbyhq.com/perplexity/b9e1ff15-d52a-46d5-abf0-26460f2a116c"}