Hims And Hers
Principal Machine Learning Engineer
US - Remote. Posted 4 days ago
The role
You will define and drive the architectural vision for large-scale, foundational machine learning models and applications. This work supports care personalization, treatment intelligence, and automation at scale.
What you will do
- Define and drive the architectural vision for ML and LLM systems
- Establish foundational design patterns and infrastructure practices
- Work hands-on with Python and ML frameworks like PyTorch
- Align technical decisions with long-term product strategy
- Architect and evolve robust ML infrastructure
- Lead cross-functional initiatives to improve developer velocity
- Shape quality strategies for testing, observability, and performance
- Mentor senior and staff engineers
Required qualifications
- 10+ years of experience in Machine Learning and/or Engineering
- Strong track record of technical leadership and system architecture
- Expert-level proficiency in Python
- Expert-level proficiency in advanced ML frameworks such as PyTorch or TensorFlo
- Success in designing, scaling, and evolving ML platforms for production
- Deep experience in LLMs and NLP, including transformer models, summarization, conversational agents, and embedding-based retrieval
- Advanced understanding of ML infrastructure, including continuous training, system observability, performance optimization, and platform reliability
- Experience with ML infrastructure tools such as Databricks, MLFlow, SageMaker, or equivalent
- Exceptional communication and cross-org leadership skills
Nice to have
- A Master’s degree or PhD in Computer Science, Machine Learning, or a related field
Benefits
- Competitive salary & equity compensation
- Unlimited PTO
- Company holidays
- Quarterly mental health days
- Comprehensive health benefits including medical, dental & vision
- Parental leave
- Employee Stock Purchase Program (ESPP)
- 401k benefits with employer matching contribution
- Offsite team retreats
About the company
Hims & Hers is a health and wellness platform that provides access to personalized care. It is a public company traded on the NYSE.