ML Engineer vs Data Scientist Salary

ML engineers earn 15-40% more. Here's exactly why — and how to decide which path is right for you.

ML Engineer
$173,500
Average base salary
+$35,500
MLE Premium
+25.7% average gap
Data Scientist
$138,000
Average base salary

Side-by-Side Comparison

MetricML EngineerData Scientist
Average Base Salary$173,500$138,000
Total Compensation$212,000$168,000
Entry Level Base$102K – $121K$85K – $105K
Senior Level Base$194K – $232K$155K – $185K
FAANG Total Comp$280K – $600K+$200K – $380K
Job Openings (2026)~45,000 US roles~62,000 US roles
Required DegreeCS/Eng preferredStats/Math/CS OK
Avg Years to Senior6-8 years5-7 years

Skills Required

SkillML EngineerData Scientist
Software engineering
Production ML systems
Distributed computing
Model optimization
Statistical analysis
Data visualization
Business communication
SQL / data querying
Experiment design

Day-to-Day Responsibilities

ML Engineer

  • Design and train production ML models
  • Build ML pipelines and infrastructure
  • Optimize model inference performance
  • Write production-grade Python/C++ code
  • Collaborate with platform and software teams
  • Own models from experiment to deployment
  • Performance engineer training loops
  • Define ML system architecture

Data Scientist

  • Analyze large datasets for business insights
  • Build statistical models and experiments
  • Create dashboards and visualizations
  • A/B test product features
  • Communicate findings to stakeholders
  • Generate business recommendations
  • Exploratory data analysis
  • Work closely with product/business teams

FAQs: MLE vs DS

Why do ML engineers earn more than data scientists?

ML engineers command higher salaries because they require strong software engineering skills on top of ML knowledge. They own the full pipeline from training to production deployment, requiring systems thinking, performance optimization, and production reliability expertise that data scientists typically don't need.

Should I become an ML engineer or data scientist?

If you enjoy coding, system design, and building production systems — go ML engineer. The pay ceiling is higher. If you prefer analysis, statistics, and business storytelling — data science may suit you better. Data scientists often transition to ML engineering roles after developing engineering skills.

Is the data science to ML engineer transition common?

Very common. Many ML engineers started as data scientists and upskilled in software engineering, distributed systems, and MLOps. The transition typically takes 1-2 years and comes with an immediate 15-25% salary bump.

MLE Salary by Level ML Specializations