Principal Machine Learning Engineer

LimeRemote - USA$240k – $330k+ Equity4d ago

Remote Principal NA Artificial Intelligence Nonprofit Machine Learning Engineer Principal SQL Python Pandas Airflow Governance

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Requirements

Background in domains relevant to Lime (e.g., forecasting, optimization, pricing, marketplace dynamics)
Prior experience building a ML platform or center of excellence through defining ML standards, governance, or shared tooling at scale

Responsibilities

Drive alignment across teams on ML strategy, standards, and long-term technical direction by serving as a technical leader for Lime’s ML Center of Excellence
Guide recommendations for ML infrastructure, tooling, and architecture (training, serving, feature stores, experimentation, monitoring)
Define and evolve ML development processes, including model review, experimentation rigor, deployment, optimization, and operations
Establish best practices for ML monitoring, observability, alerting, and model performance health in production
Drive reusable feature development patterns and shared ML capabilities that enable teams to move faster and more safely
Partner with platform, data, and product engineering teams to ensure ML systems are reliable, scalable, and cost effective
Identify and prioritize opportunities where ML will improve Lime’s product, operations, or efficiency
Act as a force multiplier by mentoring data scientists and machine learning engineers, raising the quality bar for machine learning across Lime
8+ years of professional experience in software engineering or applied ML, with a record of delivering production level systems.
Fluency in Python and experience with modern ML frameworks (e.g., PyTorch, TensorFlow) and data tools (e.g. SQL, pandas, spark, airflow)
Strong foundation in ML fundamentals, including model evaluation, experimentation, optimization, production deployment, and operations
Strong system design skills and comfort working with distributed systems
Track record of influencing ML architecture and practices across multiple teams

Benefits

$240K – $330K • Offers Equity • Offers Bonus
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