Yahoo · 12 hours ago
Principal Machine Learning Engineer
United States
Full-time
Remote
Lead/Staff
$144K/yr - $299K/yr
8+ years expYahoo is a global email provider, known for its Yahoo Mail platform with over 220 million monthly active users. The Principal Machine Learning Engineer will develop AI/ML solutions to enhance user personalization and insights, leading a team to deliver high-quality solutions.
EmailInternetNative AdvertisingOnline PortalsSearch EngineSocial Media
Responsibilities
Contribute to Mail Intelligence Mission: Support the development of AI/ML capabilities that enhance user personalization and insights within Yahoo Mail and the broader Yahoo ecosystem
Innovate and Personalize: Assist in building scalable AI/ML solutions that identify user interests and habits, contributing to personalized user experiences
Technical Leadership: Guide and mentor a team of passionate engineers, fostering a culture of innovation and excellence. Your leadership will ensure the delivery of high-quality, user-centric solutions
Collaborative Development: Work with cross-functional teams to integrate new AI/ML features and improve existing platforms, ensuring smooth user interactions
Data-Driven Insights: Apply machine learning techniques and big data processing to derive insights from mail data, enhancing content and user knowledge
Tool and Workflow Development: Develop AI/ML tools and workflows to manage and utilize large datasets, supporting AI-based infrastructure and analytics
A/B Testing and Analysis: Run regular A/B tests, gather data, and draw conclusions on the impact of your models
Commitment to Excellence: Maintain high engineering standards, focusing on code quality and architectural skills, while delivering optimal user experiences
Feedback and Recovery: Implement feedback loops and recovery paths to handle AI failures gracefully, ensuring user satisfaction
Balance Tradeoffs: Manage cost, quality, and speed tradeoffs in AI/ML solutions to optimize performance
Qualification
Required
Bachelor's degree in Computer Science, Data Science, or a related field; a Master's degree is a plus
8+ years of experience in machine learning, data analysis, or a related field
Expertise in Python, Java, or C++ and machine learning frameworks like TensorFlow, PyTorch, and Scikit-learn
Skilled with AI tools such as Cursor, Copilot, and Claude
Proficient in big data technologies (Hadoop, Spark) and modern ML infrastructure (Airflow, MLFlow, feature stores, vector databases, CI/CD for ML)
Hands-on experience with LLMs, generative AI (prompt engineering, Agent frameworks, fine-tuning, RAG, LLMOps), and GPU optimizations
Familiar with observability, telemetry, and user feedback loops for product improvement
Solid understanding of machine learning algorithms, natural language processing, and data mining techniques
Demonstrated ability to solve complex problems and implement efficient, scalable solutions
Ability to work effectively in a team environment and collaborate with tech leads, architects, and cross-functional teams
Strong verbal and written communication skills to articulate complex technical concepts to non-technical stakeholders
Eagerness to learn and adapt to new technologies and methodologies in the AI/ML domain
Preferred
Prior experience working with email systems or related technologies is a plus
Self-driven and detail-oriented, with a passion for tackling challenges
Strong teamwork spirit, excellent communication skills, and the ability to multitask and manage expectations effectively
Experience with public cloud platforms, especially Google Cloud Platform (GCP), is preferred
Benefits
Healthcare
A great 401k
Backup childcare
Education stipends
Much (much) more
Company
Yahoo
Yahoo is a technology and media company that serves users through its portfolio of digital platforms, products, and services. It is a sub-organization of Verizon Media.
5001-10000 employees
H1B Sponsorship
Yahoo has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2023 (197)
2022 (646)
2021 (381)
2020 (463)
Funding
Current Stage
Public CompanyTotal Funding
$6.8MKey Investors
SoftBank GroupSequoia Capital
2021-05-03Acquired
1996-04-12IPO
1995-11-30Series B· $4.8M
Leadership Team
Monica Vorn Mijaleski
Chief Financial Officer
Mike Gupta
SVP Finance / Chief Treasury Officer
Recent News
MIT Technology Review
2026-01-11
2025-12-27
2025-12-23
Company data provided by crunchbase