Senior Lead ML Encoder for Customer Representations

Motion Recruitment Partners LLC; South San Francisco (CA); On-site; USD 180,000 - 240,000; Full time

Job summary

Motion Recruitment Partners LLC seeks a Senior Lead ML Encoder to drive customer representation learning. You will design pretraining objectives, train and evaluate the encoder, and produce evidence guiding project continuation.

This is a hands-on senior contractor role that spans research to production, with emphasis on durable, testable results. The role requires leading modeling objectives, robust evaluation, and the ability to present findings to senior stakeholders.

Qualifications

• Trained an encoder or embedding model; designed pretraining objective.
• Deep expertise in representation learning (self-supervised/contrastive pretraining, transformers).
• Experience modeling large, sparse, longitudinal event data (transactions, journeys, engagement histories).
• Experience building inductive representations for entities with limited history.
• Rigorous evaluation: time splits, leakage checks, cold-start, transferability, uncertainty.
• Ability to judge embedding signal quality across downstream tasks and stakeholders.

Responsibilities

• Design the pretraining objective and evaluation framework for the encoder.
• Train and evaluate the encoder; produce evidence for progress decisions.
• Write production-grade code; establish data contracts, pipelines, and monitoring.
• Demonstrate credible results to senior stakeholders and decide on go/no-go.
• Lead end-to-end development from research to production deployment.

Skills

Python

PyTorch/JAX

SQL

Large-scale data

Model deployment

Evaluation

Stakeholder comms

Job description

Motion Recruitment Partners LLC seeks a Senior Lead ML Encoder to drive customer representation learning. You will design pretraining objectives, train and evaluate the encoder, and produce evidence guiding project continuation.

This is a hands-on senior contractor role that spans research to production, with emphasis on durable, testable results. The role requires leading modeling objectives, robust evaluation, and the ability to present findings to senior stakeholders.