Research Scientist – LTX Model Quality
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موقع الوظيفة:
القدس الغربية - إسرائيل
الراتب شهرياً:
لم يكشف
تاريخ النشر:
نُشرت قبل 18 ساعة
عدد الوظائف الشاغرة:
1 عدد الوظائف الشاغرة
ملخص الوظيفة
Who we are
Lightricks is an AI-first company creating next-generation content creation technology for businesses enterprises and studios with a mission to bridge the gap between imagination and creation. At our core is LTX-2 an open-source generative video model built to deliver expressive high-fidelity video at unmatched speed. It powers both our own products and a growing ecosystem of partners through API integration.
The company is also known globally for pioneering consumer creativity through products like Facetune one of the worlds most recognized creative brands which helped introduce AI-powered visual expression to hundreds of millions of users worldwide. We combine deep research user-first design and end-to-end execution from concept to final render to bring the future of expression to all.
The role
Following the success of LTX-2 our widely adopted open-source text-to-audiovideo model we are expanding our efforts to develop cutting-edge audiovideo generation models and are hiring Research Scientists to join our LTX-Applications team.
As a Research Scientist in the LTX Model Quality team you will play a key role in elevating the quality controllability and alignment of our video generation model. This role focuses on the critical post-training phasedeveloping and implementing techniques such as preference optimization reward modeling and human feedback integration to refine model outputs. You will design robust evaluation frameworks define quality metrics and build systematic approaches to identify and address model failure modes. Your work will directly impact the quality of the videos we generate.
What you will be doing
- Develop and implement post-training pipelines including RLHF DPO and other preference-based optimization techniques for video generation models.
- Fine-tune and control VLLMs for video and audio understanding.
- Design and iterate on quality evaluation metrics and frameworks.
- Conduct systematic failure mode analysis and develop targeted interventions to address quality gaps.
- Build and curate high-quality preference datasets and evaluation benchmarks that capture nuanced aspects of video generation quality.
- Collaborate closely with fellow researchers to establish tight feedback loops between human judgment and model improvement.
Your skills and experience
- Experience with post-training techniques for generative or multimodal models.
- Strong understanding of evaluation methodology quality metrics and benchmark design for generative AI.
- Solid software engineering skills and comfort working with complex ML training of relevant topics in statistics experimental design and perceptual quality assessment.
- Ability to translate subjective quality assessments into measurable actionable model improvements.
- Enjoys iterative detail-oriented work and takes pride in systematically improving model outputs.
- Loves diving into the data curating filtering and specializing it for the teams tasks.
Required Experience:
IC
المهارات المطلوبة
- Laboratory Experience
- Machine Learning
- Python
- AI
- Bioinformatics
- C/C++
- R
- الكيمياء الحيوية
- Research Experience
- Natural Language Processing
- Deep Learning
- علم الأحياء الجزيئي
عن الشركة
Lightricks was founded in 2013 by five entrepreneurs from the Hebrew University of Jerusalem, four of them CS PhD students. Based in Israel with offices in London and Germany, the company has grown from five founders to a team of over 300. Lightricks is fast-becoming the go-to creat ... اعرض المزيد
