ML Engineer, Character Models – Diffusion

Spin Master

. Train and fine-tune diffusion models, pipelines, and adapters for characters .

Posted 10/7/2026full-timeRemote • Canada, United StatesMid-LevelSenior💰 CA$136,700 - CA$182,300 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in fine-tuning diffusion models and building training data pipelines, ensuring high-quality generative outputs. Collaborates effectively with cross-functional teams to deliver safe and approved character products for children.

Highest-signal resume keywords

Fine-Tuning Diffusion ModelsBuilding Training Data PipelinesEvaluating Generative OutputSoftware Engineering in PythonCollaboration with Brand Teams

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Fine-Tuning Diffusion ModelsBuilding Training Data PipelinesEvaluating Generative OutputSoftware Engineering in Python

Soft Skills

CuriosityCreativity

Industry Keywords

Generative Image ModelsCharacter FidelityChild Safety StandardsModel Evaluation Systems

Tech Stack

Tools & technologies

Python

About the role

Key responsibilities & impact

Train and fine-tune diffusion models, pipelines, and adapters for characters
Extend the evaluation harness to measure character fidelity alongside overall output quality
Ensure a child’s spoken request for a character reliably produces the right outputs
Work with brand teams to get characters approved and shipped
Partner with the ML Serving engineer to get new products into production
Partner with the Trust & Safety engineer to ensure products are safe for kids from day one
Build and tune models and pipelines for generating approved, on-model character stickers for Stickerbox
Build the data and evaluation systems behind the models

Requirements

What you’ll need

Hands-on experience fine-tuning diffusion or other generative image models
Experience building training data pipelines with real provenance requirements
Experience building evaluations for generative output and using them to make decisions
Strong software engineering skills in Python
Curiosity and willingness to get creative and help pioneer the future of play

Benefits

Comp & perks

Growth and Career Opportunities
Flexible Work Hours
Innovation, Collaboration and Fun
Comprehensive Benefits
Other fun Perks!
Reasonable accommodation during the hiring process