RefolkCandidates
JobsBuild my resume

Research Engineer, Agentic Systems

Mirage · New York, NY, USA

$175k - $275k/yrMid levelEngineeringEngineeringPosted Yesterday
Apply with a tailored resumeView the original posting

About this role

Mirage 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 (Our Models and Agents) 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 an ML Engineer to push the boundaries of large language models for multimodal creative tasks. You'll develop new approaches for building and extending agentic systems that understand and operate over complex, real-world data, particularly video. This role focuses on advancing agent capabilities, improving reasoning and control, and enabling new forms of interaction between language models and time-based media. Responsibilities - Design and build end-to-end agentic systems for creative tasks - Develop novel approaches for training and adapting the large language models that power these agents - Design new objectives, datasets, and fine-tuning strategies to improve agent behavior and reliability - Explore multimodal reasoning and structured generation for creative control - Run systematic experiments to evaluate and improve agent performance in real-world tasks - Design evaluation frameworks for agentic workflows in video analysis and editing - Analyze failure modes across the full agent loop (planning, tool use, execution) and iterate on improvements What makes you a great fit - BS/MS/PhD in CS, ML, or related field - Strong track record building production ML systems or agentic pipelines - 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 or drive tool use - Comfort owning the full stack, from model-level experiments to deployed agent systems - Strong experimental rigor and good taste for what makes agents actually work in practice 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.

Excerpt from the posting Mirage published. Read the full description on their site before applying.

Skills this posting mentions

Language ModelsResearchMachine Learning

About Mirage

Grow your brand with short-form video, powered by frontier AI research. At Mirage, we’re building full-stack foundation models and products that redefine video. Over 20 million content creators and businesses use Mirage’s products to reach their full creative and commercial potential.

All 13 openings at Mirage

Apply to this role, tailored

Queue Research Engineer, Agentic Systems at Mirage and I will read the posting, rewrite your resume against it, draft the cover letter, and score the fit before you send anything.

Applications finish as drafts. Nothing is sent until you read it and press send. New accounts start with 500 free credits.

Tailor my applicationHow it works

More roles at Mirage

See all

Similar roles elsewhere

See more

Listed from the job board Mirage publishes. Refolk is not the employer and does not handle their hiring. Applications go to Mirage directly.