Senior Machine Learning Engineer (AI Effects and Editing)

TL;DR

Senior Machine Learning Engineer (AI Effects and Editing): Design, fine-tune, and deploy machine learning models powering next-generation AI video effects and editing features at hirify.global. With an accent on integrating on-device AI capabilities and building scalable backend pipelines. Focus on prototyping novel AI effects using diffusion and computer vision, optimizing real-time rendering, and bridging research with production.

Location: Beijing, China, onsite

Company

hirify.global is a product company focused on empowering users to create compelling visual stories through intuitive design and video editing tools.

What you will do

• Design, fine-tune, and deploy ML models for AI-powered visual effects across image and video modalities.
• Build robust pipelines for LoRA-based model training, post-training quantization, and inference optimization.
• Develop and integrate on-device ML capabilities for mobile runtime efficiency.
• Scale backend services for effect model serving, asset management, and real-time rendering.
• Prototype novel AI effects using diffusion, computer vision, and shader-driven approaches.
• Collaborate closely with design and engineering teams to deliver user-facing features.

Requirements

• Location: Must be based in Beijing, China for onsite work
• Academic or practical background in computer graphics, computer vision, or computer animation with experience in numerical methods, geometric processing, physical simulation, generative models, or mobile image processing.
• Proven experience fine-tuning and deploying computer vision models for real-time or streaming use cases.
• Hands-on skills with LoRA training, model post-processing (quantization, pruning), and on-device inference optimization.
• Proficiency in backend development (Python, Go) and model-serving architectures.
• Practical knowledge of computer graphics APIs (OpenGL/OpenGLES) and shader development (GLSL/HLSL).
• Full proficiency in English communication

Nice to have

• Experience with AI effect tools, video post-production, or multimedia ML use cases.

Culture & Benefits

• Opportunity to ship creative ML features at scale impacting millions of users.
• Work in an interdisciplinary team bridging product, AI/ML, and design.
• Influence the future of intelligent creative tools at hirify.global through research and engineering.