Senior Data Scientist jobs in United States
cer-icon
Apply on Employer Site
company-logo

Toast · 1 day ago

Senior Data Scientist

Toast creates technology to help restaurants and local businesses succeed in a digital world. As a Senior Data Scientist, you’ll lead the design and development of scalable ML systems to enhance customer experience and support key business outcomes.

DeliveryPoint of SaleSaaS
check
Comp. & Benefits
check
H1B Sponsor Likelynote

Responsibilities

Own the full machine learning lifecycle—from problem framing and data exploration to modeling, deployment, and monitoring—for mission-critical initiatives
Design and implement advanced ML and statistical models that improve product performance, operational efficiency, or customer insights
Collaborate with engineers, product managers, and business stakeholders to define project scope, success metrics, and integration strategy
Guide architectural decisions, set modeling standards, and champion best practices for experimentation, validation, and productionization
Mentor other data scientists and raise the technical bar through design reviews, feedback, and sharing domain expertise
Proactively identify areas where data science can create business value and lead cross-functional efforts to drive those opportunities forward
Leverage cutting edge AI tools to enhance your development workflow, improve velocity, and help pioneer new approaches to building - contributing to a culture of innovation and productivity across the team

Qualification

Machine LearningStatistical ModelingPythonSQLML OpsCloud PlatformsA/B TestingBusiness AcumenCommunication SkillsMentoring

Required

5+ years of experience in data science with a proven track record of delivering production ML systems that drive measurable impact
Deep knowledge of statistical modeling, machine learning (e.g., tree-based models, time series, deep learning), and model evaluation
Experience working with real-world product data at scale and translating ambiguous problems into well-scoped ML solutions
Experience with distributed data processing and training, real-time inference, and ML Ops frameworks
Prior experience mentoring other data scientists or acting as a tech lead
Experience leading experimentation (e.g., A/B testing), causal inference, and real-time decision systems
Proficiency in Python and SQL, and experience with ML frameworks (e.g., scikit-learn, PyTorch, TensorFlow)
Strong grasp of software engineering principles including modular design, version control, testing, and CI/CD
Hands-on experience with cloud platforms (preferably AWS), including tools like SageMaker, Athena, Glue, DynamoDB, and Bedrock
Excellent communication skills and the ability to influence both technical and non-technical stakeholders
Strong business acumen with the ability to align technical solutions with company goals

Preferred

An advanced degree in Computer Science, Statistics, or a related STEM field is preferred
Familiarity with MLOps tooling for monitoring, drift detection, retraining, and explainability
Experience fine-tuning LLMs and applying reinforcement learning from human feedback (RLHF) to improve model performance and alignment

Benefits

Cash compensation (overtime, bonus/commissions, if eligible)
Benefits
Equity (if eligible)

Company

Toast is a point-of-sale and restaurant management platform designed for businesses in the food service and hospitality industry.

H1B Sponsorship

Toast 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
2025 (26)
2024 (32)
2023 (39)
2022 (66)
2021 (29)
2020 (17)

Funding

Current Stage
Public Company
Total Funding
$961.95M
Key Investors
12 West CapitalT. Rowe PriceBessemer Venture Partners
2021-09-22IPO
2020-11-23Secondary Market· $60M
2020-02-14Series F· $400M

Leadership Team

leader-logo
Aman Narang
CEO and Co-Founder
linkedin
leader-logo
Steve Fredette
Co-founder and President
linkedin
Company data provided by crunchbase