Research Engineer, Agentic Systems

About this role

Mirage is hiring a Research Engineer to develop agentic systems that use large language models for video editing and creative tasks. You'll design end-to-end agent architectures, advance LLM capabilities for multimodal reasoning, and evaluate agent performance on real-world video workflows.

What you'll do

• Design and build end-to-end agentic systems for creative video tasks
• Develop novel training and adaptation approaches for LLMs powering agents
• Create objectives, datasets, and fine-tuning strategies to improve agent behavior
• Explore multimodal reasoning and structured generation for creative control
• Run systematic experiments to evaluate and improve agent performance
• Design evaluation frameworks and analyze failure modes across agent loops

What they're looking for

• Large language models and transformer architectures
• Fine-tuning, alignment, and post-training methods
• Agentic systems and tool use design
• Multimodal reasoning and structured generation
• Production ML systems and full-stack ownership
• Experimental design and evaluation frameworks
• Video analysis and understanding
• Python and ML frameworks

Benefits

• Medical, dental, and vision insurance
• 401(k) with employer match
• Catered lunch multiple days per week
• Dinner stipend for late nights and Grubhub subscription
• Multiple team offsites and monthly team events
• Generous PTO policy