Senior ML Engineer - Production-Grade AI Systems

Collectors; Alton (IL); On-site; USD 140,000 - 190,000; Full time

Job summary

Collectors is the leading creator of innovative technology that provides value-added services for collectors worldwide. We are seeking a Senior Machine Learning Engineer to join our AI/ML team and build applied machine learning systems from prototype through production.

You’ll work across computer vision, structured data, and agentic AI workflows with direct impact on products used by graders, researchers, and collectors.

Qualifications

• 5+ years of experience in machine learning or a closely related software engineering field.
• Strong hands-on experience building and shipping machine learning systems in production, including data preparation, model training, evaluation, deployment, and monitoring.
• Proficiency in Python and common ML tooling, with solid software engineering fundamentals such as testing, modular design, observability, and version control.

Responsibilities

• Design, build, and deploy end-to-end machine learning systems that support AI/ML product initiatives
• Own projects from problem framing through implementation, evaluation, launch, and post-launch monitoring, with clear accountability for outcomes
• Develop production-grade computer vision, multimodal, and agentic pipeline solutions that can ingest images and other inputs, reason over uncertainty, and return structured, reliable outputs
• Build and improve data pipelines, model evaluation frameworks, and feedback loops that ensure training and inference systems remain accurate, scalable, and maintainable over time
• Partner with annotation, operations, product, and domain experts to define data requirements, labeling standards, success metrics, and rollout plans
• Translate experimental findings into clear technical recommendations, balancing model quality, latency, cost, and operational complexity
• Contribute high-quality code, documentation, and technical design artifacts, and collaborate effectively through design reviews, code reviews, and cross-functional discussions

Skills

Machine learning

Python

Production ML

Data pipelines

Model evaluation

Job description

Collectors is the leading creator of innovative technology that provides value-added services for collectors worldwide. We are seeking a Senior Machine Learning Engineer to join our AI/ML team and build applied machine learning systems from prototype through production.

You’ll work across computer vision, structured data, and agentic AI workflows with direct impact on products used by graders, researchers, and collectors.