Senior Software Engineer - ML/ Fraud Prevention
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Before you apply
LocationWarsaw (PL-WAW-TFM), Warsaw, Poland
Work modeon-site
Typefull-time
SenioritySenior
Experience8+ yrs
DepartmentCSI (7LV)
Company size10,000+ people
PostedSep 21, 2026 · 1mo ago
Verified live22h ago
At a glanceSummarised by Seekless from the posting.
Bachelor's degree in Computer Science, Mathematics, Statistics, or equivalent practical experience
8+ years of software engineering experience building distributed backend systems or production ML systems (Python, Java, Kotlin, C++, Go, or similar)
Hands-on experience training, evaluating, and deploying machine learning models to production
Experience serving models or critical business logic in low-latency, high-availability production environments
Strong fundamentals in data modeling, and SQL analytics
Experience in fraud prevention, risk management, trust & safety, payments, or another adversarial domain where attackers actively adapt
Experience with graph/entity-clustering techniques, rules engines, and anomaly detection alongside traditional ML
Proven track record building feature/data pipelines and maintaining consistency between training data and real-time inference
Skills
Python
Java
Kotlin
C++
Go
SQL
Benefits
Health insurance
Dental
Vision
Life
Disability insurance
401(k)
Unlimited PTO
Sick time
Maternity leave
Baby bonding leave
Holidays
About the company
Waymo is an autonomous driving technology company with the mission to be the world’s most trusted driver. Since its start as the Google Self-Driving Car Project in 2009, Waymo has focused on building the Waymo Driver—The World’s Most Experienced Driver™—to improve access to mobility while saving thousands of lives now lost to traffic crashes. The Waymo Driver powers Waymo’s fully autonomous ride-hail service and can also be applied to a range of vehicle platforms and product use cases. The Waymo Driver has provided over ten million rider-only trips, enabled by its experience autonomously driving over 100 million miles on public roads and tens of billions in simulation across 15+ U.S. states.
You will:
•
Train, evaluate, and ship production machine learning models to score rider risk in real time, directly protecting revenue from payment fraud and reducing vehicle vandalism.
•
Engineer and maintain high-throughput, low-latency feature pipelines over payment, trip, device, and identity events, ensuring consistency between offline training and online serving.
•
Build and operate the real-time model serving infrastructure integrated into the critical trip creation and payment authorization paths under strict latency and availability budgets.
•
Design and implement safe, graduated enforcement mechanisms with full audit trails, reversibility, and support for rider appeals.
•
Partner cross-functionally with Product, Finance, and Safety to balance revenue protection, rider trust, and compliance as Waymo scales to new markets.
You have:
•
Bachelor’s degree in Computer Science, Mathematics, Statistics, or equivalent practical experience.
•
8+ years of software engineering experience building distributed backend systems or production ML systems (Python, Java, Kotlin, C++, Go, or similar).
•
Hands-on experience training, evaluating, and deploying machine learning models to production.
•
Experience serving models or critical business logic in low-latency, high-availability production environments.
•
Strong fundamentals in data modeling, and SQL analytics.
We prefer:
•
Experience in fraud prevention, risk management, trust & safety, payments, or another adversarial domain where attackers actively adapt.
•
Experience with graph/entity-clustering techniques, rules engines, and anomaly detection alongside traditional ML.
•
Proven track record building feature/data pipelines and maintaining consistency between training data and real-time inference.
•
Experience serving models or critical business logic in low-latency, high-availability production environments.
Disclosure for WA Based & Remote Roles:
In accordance with Washington state law, we are highlighting our comprehensive benefits package, which is available to all eligible US based employees. Benefits for this role include:
Health, dental, vision, life, disability insuranceRetirement Benefits: 401(k) with company matchPaid Time Off: 20 days of vacation per year, accruing at a rate of 6.15 hours per pay period for the first five years of employmentSick Time: 40 hours/year (statutory, where applicable); 5 days/event (discretionary) Maternity Leave (Short-Term Disability + Baby Bonding): 28-30 weeks Baby Bonding Leave: 18 weeks Holidays: 13 paid days per year
Legal
US Remote Only: Please note that Waymo may not be able to employ remotely in all US locations. Please speak with your recruiter about your preferred location for remote work when you begin the interview process.