Machine Learning Engineer III, Routing Cost

Finland · Mapbox Helsinki · 8-10 years experience · Full-time · Hybrid · Posted Oct 13, 2026

At a glance

As a Machine Learning Engineer III on the Routing Cost team, you will lead the design, development, and delivery of highly trafficked recommendation systems for our routing cost engine.
Your technical contributions will include leading the engineering team to execute end-to-end feature implementation within the larger navigation organization.

Lead the engineering team(s) to execute end-to-end feature implementation within the larger navigation organization (~80 engineers).
Design and build new ML and data pipelines, as well as optimizing existing ML and data pipelines.
Build tools for automated quality assurance and data exploration.
Leverage geospatial algorithms to optimize pipelines, as well as creating automated tuning and outlier detection algorithms.
Partner with data scientists to make improvements to our models for determining patterns in movement and/or traffic.
Mentor colleagues and participate in code and design reviews.
Participate in an on-call rotation to ensure our systems remain available to customers 24/7.

8-10+ years of backend and ML experience: Extensive hands-on experience showcasing expertise and a strong track record in the engineering field.
Technical knowledge: Extensive experience with Python, distributed processing pipelines (Hadoop, Spark, Airflow, Dask), and very large datasets – statistical analysis, data quality control, optimizing storage.
Cloud proficiency: Extensive experience with cloud and infrastructure services, including, as well as deploying and managing infrastructure in cloud environments.
Operational excellence: You drive a culture of quality and continuous improvement in your organization.
Ownership & execution: Own the technical vision, lead the strategy and guide the team to execute towards building the future of our routing cost engine.
Customer focus: You care deeply about your customers and their problems, and you work tirelessly to innovate on their behalf.
Growth mindset: Have the humility to accept mistakes, learn and grow from them.
Mentorship: Experience mentoring and leading engineering teams developing skill sets and career growth.
Strong written and vocal communication skills: You can talk and write about complex ideas concisely to a wide audience.
Data informed mindset: You believe in the value of data informed decision making and strive to measure things that are not straight forward but essential.