Principal Machine Learning Engineer

Responsibilities

• Design, build, and operate production machine learning systems at scale
• Translate advanced models for sequential and multi-modal data into reliable products that power risk assessment, engagement, and event detection
• Partner with research, product, and platform teams to deliver measurable business impact across cloud and edge

Requirements

• Master’s degree or equivalent years of experience and/or certification in Data Science, Computer Science, Electrical Engineering, Physics, or Mathematics
• 7+ years of professional experience in AI/ML
• 3+ years of hands-on experience developing and deploying deep learning models, with a strong portfolio in generative AI for sequential or spatio-temporal data
• Strong software engineering skills in Python
• Must have at least 2 years of AWS experience, including knowledge of common AWS services such as EC2, S3, Lambda, Athena, Redshift, etc.
• Must have at least 2 years of professional experience with computer languages such as Python, C++, Scala, etc.
• Strong knowledge of SQL, including the ability to comprehend and write complex SQL statements
• Excellent problem solving, communication, and cross-functional collaboration

Technologies

• Python, C++, Scala, AWS, EC2, S3, Lambda, Athena, Redshift, SQL

Benefits

• Annual performance bonus
• Equity may be awarded as RSUs (Restricted Stock Units)
• Medical, Dental, Vision and Life Insurance
• Matching 401k
• Short-term & long-term disability
• Parental leave
• Unlimited Paid Time Off including vacation, sick days & public holidays
• Flexible scheduling
• Work from home policy depending on role and responsibilities

Nice to Haves

• Ph.D. in a relevant field
• Hands-on experience with time-series or multi-modal architectures for sensor fusion and behavioral modeling
• Background in self-supervised learning on real-world sensor data and physics-informed modeling
• Experience building large-scale data processing and orchestration: Spark or Beam, Airflow, Kafka or Pub/Sub, Docker, and Kubernetes on AWS, GCP, or Azure
• Publications in strong AI or ML venues

Additional Perks and Culture

• Work on a mission with real impact: crashes prevented, injuries avoided, lives protected around the world
• Join an industry leader supporting 65 million drivers protected and powering 140+ programs across 25 countries
• Move fast and own outcomes with high ownership, small teams, and direct access to leadership
• Summer Fridays provide half days to recharge
• Employee resource groups: Black, AAPI, LGBTQIA+, Women, Book Club, and Health & Wellness
• Comprehensive wellness, education, and employee assistance programs

Diversity and Inclusion

CMT is an equal-opportunity employer committed to a workplace and culture where everyone feels valued, respected, and empowered to contribute unique talents and perspectives. CMT does not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability state. CMT is headquartered in Cambridge, MA.

About Cambridge Mobile Telematics

Cambridge Mobile Telematics (CMT) is the world’s largest telematics and AI company for safer mobility. Its mission is to make the world’s roads and drivers safer. The company’s AI-driven platform, DriveWell Fusion®, proactively identifies and reduces driving risk, leading to fewer crashes and injuries. CMT enables partners to measure risk, detect crashes, provide life-saving assistance, and streamline claims, operating globally with offices in Budapest, Hungary; Chennai, India; Seattle, Washington; Tokyo, Japan; and Zagreb, Croatia.