Research Scientist, LLMs
MirageMirage is an AI-native video platform that intelligently orchestrates production and editing through natural language. Our models leverage contextual awareness to execute the same creative decisions a professional editor would — dramatically improving productivity for experienced teams, while making video creation accessible to anyone.
We’re an interdisciplinary team addressing some of the most difficult technical and creative challenges in generative media. As an early member of our team, you’ll tackle foundational problems that remain largely unsolved across the industry, driving an outsized impact on the future of creative expression.
More about us
Product (Captions by Mirage)
Research (Seeing Voices, technical-white-paper)
Updates (Mirage on X / twitter)
TechCrunch, Forbes AI 50, Fast Company (press)
Our Investors
We’re very fortunate to have some the best investors and entrepreneurs backing us, including Index Ventures, Kleiner Perkins, Sequoia Capital, Andreessen Horowitz, General Catalyst, Uncommon Projects, Kevin Systrom, Mike Krieger, Lenny Rachitsky, Antoine Martin, Julie Zhuo, Ben Rubin, Jaren Glover, SVAngel, 20VC, Ludlow Ventures, Chapter One, and more.
Please note that all of our roles will require you to be in-person at our NYC HQ (located in Union Square)
About the Role
Mirage is seeking a Research Scientist to push the boundaries of large language models for multimodal creative tasks. You’ll develop new approaches for adapting and extending LLMs to understand and operate over complex, real-world data, particularly video
This role focuses on advancing model capabilities, improving reasoning and control, and enabling new forms of interaction between language and time-based media.
Responsibilities
Develop novel approaches for training and adapting large language models
Design new objectives, datasets, and fine-tuning strategies
Explore multimodal reasoning and structured generation
Run systematic experiments to improve model behavior and reliability
Design evaluation frameworks for complex, real-world tasks in video analysis
Analyze failure modes and iterate on model improvements
What makes you a great fit
MS/PhD in ML, CS, or related field
Strong track record in LLMs, NLP, video understanding, or multimodal learning
Deep understanding of transformers and modern LLM techniques
Experience with fine-tuning, alignment, or post-training methods, especially for adapting models to generate structured outputs
Strong experimental rigor and research taste
Benefits:
Comprehensive medical, dental, and vision plans
401K with employer match
Commuter Benefits
Catered lunch multiple days per week
Dinner stipend every night if you're working late and want a bite!
Grubhub subscription
Health & Wellness Perks
Multiple team offsites per year with team events every month
Generous PTO policy
Captions provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.
Please note benefits apply to full time employees only.