Machine Learning Engineer

Ramp; New York (NY); On-site; USD 180,000 - 240,000; Full time

Benefits offered by this job

Flexible PTO

Health and wellness stipend

Budget for intra-office travel

Weekly coffee stipend

Job summary

Ramp is seeking a lead for fraud machine learning to build core models, design data architectures, and set strategic roadmaps to mitigate fraud while minimizing friction for legitimate users.

You will partner with product and engineering on model design, implementation, execution and analysis, deploying production ML, and influencing processes and tools for scalable decisions in a fast‑paced startup environment.

Qualifications

• Bachelor’s degree in math, economics, physics, CS, or related field.
• 5+ years of industry experience as ML Engineer, Scientist, or Applied Scientist.
• Strong Python experience with numpy/pandas/sklearn/pytorch.
• Experience deploying ML models to production and backend systems.
• Strong SQL knowledge (Snowflake, Postgres).
• Familiar with AI tools for software development and data analysis.

Responsibilities

• Lead the fraud ML program, building core models and data architectures.
• Set strategic roadmaps to reduce fraud while minimizing user friction.
• Collaborate with product and engineering on model design, implementation, and analysis.
• Advocate scalable processes, tools, and practices for the ML team.

Skills

Machine Learning

Python

SQL

Production ML

Problem solving

Education

Bachelor's degree in quantitative field

PhD in quantitative field (nice to have)

Tools

Snowflake

Postgres

PyTorch

NumPy

scikit-learn

Job description

About Ramp

Ramp is building the smart infrastructure for finance teams, embedded in the transaction flow of every dollar a business spends. We automate how over $200B in annualized spend flows in and out of 70,000+ companies: authorizing payments, flagging risk, categorizing spend, and closing books.

About Ramp

Ramp is building the smart infrastructure for finance teams, embedded in the transaction flow of every dollar a business spends. We automate how over $200B in annualized spend flows in and out of 70,000+ companies: authorizing payments, flagging risk, categorizing spend, and closing books.

The problems are high-stakes, data-dense, and unforgiving.

We hire people with high agency and high urgency. We look for slope over intercept. We care less about where you trained and more about what you’ve built. At Ramp, everyone is a builder who owns problems end to end and makes consequential decisions that shape the outcome.

The median Ramp customer saves 5% and grows revenue 16% in their first year – far in excess of businesses operating without Ramp. We believe every ambitious company deserves the same.

If you want to build systems that directly shape how companies move and manage billions, Ramp is the place to do it.

About The Role

We’re seeking someone to lead the future of fraud machine learning at Ramp. In this role, you will help build core machine learning models, design data architectures, and set strategic roadmaps to help Ramp mitigate fraud-related threats while minimizing the friction experience by legitimate users. You will partner closely with product and engineering counterparts across model design, implementation, execution, and analysis.

What You’ll Do

• Employ statistical and machine learning techniques on large datasets to discover patterns of fraud, platform abuse, and identity theft
• Prototype and productionize machine learning models and rules-based systems to protect Ramp and its users from fraud
• Partner closely with Fraud Engineering and Data Platform teams to augment and leverage data across first and third party sources, ensuring we’ve added as much context as possible to every decision we make
• Contribute to the culture of Ramp’s machine learning team by influencing processes, tools, and systems that will allow us to make better decisions in a scalable way

What You Need

• Bachelor’s degree or above in Math, Economics, Physics, Computer Science, or other quantitative fields
• A minimum of 5 years of industry experience as a Machine Learning Engineer, Applied Scientist or Data Scientist
• Strong python experience (numpy, pandas, sklearn, pytorch etc.) across ML techniques and backend engineering
• Prior experience deploying Machine Learning models to production and making meaningful contribution to backend systems
• Strong knowledge of SQL (Snowflake, Postgres, etc.)
• Fluency with agentic (AI) tools for software development and data analysis
• Ability to thrive in a fast‑paced, constantly improving, start‑up environment that focuses on solving problems with iterative technical solutions

Nice-to-Haves

• PhD in Math, Economics, Physics, Computer Science, or other quantitative fields
• Context on Fraud and/or Identity Threat detection systems
• Experience at a high-growth startup
• Experience with the modern data stack ( Snowflake / Hex / dbt / RisingWave / etc )
• Strong perspective on data science + ML engineering development cycle, especially in a post‑AI setting
• Experience developing LLM-backed systems or tools

Benefits Available To All Full-time Ramp Employees (Global)

• Flexible PTO
• Centralized home‑office equipment ordering
• Health and wellness stipend
• Budget for intra‑office travel
• Weekly coffee stipend

United States

• 100% medical, dental & vision insurance coverage for you, with partial coverage for dependents
• One Medical annual membership
• 401(k), including employer match on contributions made while employed by Ramp
• Fertility HRA (up to $10,000 per year)
• Parental leave: up to 16 weeks (birthing + bonding) or 8 weeks (bonding only) at 100% pay
• Pet insurance
• In‑office perks: lunch, snacks, drinks, and more
• Relocation expense coverage to NYC or SF (if needed)

Canada

• Group medical, dental, and vision coverage through Sun Life
• Life, AD&D, and disability coverage
• Fertility drug coverage (up to $4,000 lifetime)
• Group Retirement Plan with employer match (RRSP + DPSP)
• Parental leave: up to 16 weeks (birthing + bonding) or 8 weeks (bonding only) at 100% pay, with additional time available at reduced pay
• Employee Assistance Program and virtual care through Lumino Health

United Kingdom

• Private medical insurance through Freedom Elite
• Virtual GP and at‑home care via eMed x Livi
• Workplace pension through Penfold, with salary sacrifice option
• Parental leave: up to 16 weeks (birthing + bonding) or 8 weeks (bonding only) at 100% pay with additional time available at reduced pay

Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.