Senior Machine Learning Engineer, Pricing

Lime

22h • Remote

About The Position

Lime is the largest global shared micromobility business, operating in close to 30 countries across five continents. We’re on a mission to build a future where transportation is shared, affordable and carbon-free. Our electric bikes and scooters have powered more than one billion rides in cities around the world. Named a 2025 Time 100 Most Influential Company, Lime continues to set the pace for shared micromobility globally, spurring a new generation of clean alternatives to car ownership.

We’re looking for a Machine Learning Engineer to design, deploy, and own production machine learning models that drive Lime’s core pricing decisions. You’ll design and own production ML systems that make real-time pricing decisions under uncertainty—balancing rider demand, fleet supply, regulatory constraints, and business objectives across millions of rides. This role sits at the intersection of ML modeling, backend systems, and product decision-making, with direct ownership of models that ship, learn, and evolve in production. You’ll work on ambitious initiatives, scale successful products, and help define the future of pricing at Lime.
This is a remote position with a requirement for candidates residing in the United States to maintain effective collaboration across teams.

Requirements

• 5+ years of industry professional software engineering experience deploying machine learning methods at scale in production level systems.
• 2+ years of experience in Reinforcement Learning with expertise implementing customized reward functions, policy optimization, and multi-armed bandits.
• 2+ years of backend development experience (Ruby on Rails is a plus).
• Fluency in Python and experience with modern ML frameworks (e.g., PyTorch, TensorFlow) and data tools (e.g. SQL, pandas, spark, airflow)
• Experience with cloud computing services or platforms (preferably AWS).
• U.S Based Position

Nice To Haves

• Experience with both Snowflake and Sagemaker is a plus.

Responsibilities

• Translate complex business problems into solutions that leverage end-to-end, production-level machine learning systems
• Develop, iterate on, and productionize machine learning models, owning both model logic and supporting systems.
• Implement and own backend pricing services and APIs consumed by the Lime App.
• Architect and build scalable, reliable platforms and services that power pricing decisions and enable new product initiatives.
• Build trust with leadership to influence the company's pricing strategy through reasoning and communication of model performance and technical vision
• Collaborate with other Software Engineers and Data Scientists to raise the bar on ML standards and Engineering Excellence
• Mentor and support engineers on the team, helping grow technical depth and develop future leaders.

Benefits

• Comprehensive Health & Wellness: A choice of medical, dental, and vision plans. We also provide company-paid life and disability insurance and company-funded mental health benefits.
• Financial & Retirement Planning: 401(k) plan with both pre-tax and Roth options, and access to a Health Savings Account (HSA) with a monthly company contribution.
• Family & Fertility Support: Paid parental leave for birthing and non-birthing parents, plus fertility and family-forming benefits.
• Paid Time Off: Unlimited vacation, paid leaves, and 10 company holidays.
• Unique Lime Perks: Complimentary use of Lime vehicles in participating cities, a monthly phone allowance, dedicated learning and development days, and access to perks including One Medical, Wellhub, and Headspace.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed