Senior Machine Learning Engineer | AI/Healthcare | $180K-$240K
Jersey City, NJ | Hybrid | Full-Time
We're working with a fast-growing technology company in the AI and healthcare space that's looking to add a Senior Machine Learning Engineer to its growing engineering team.
This is a hands-on role focused on building machine learning models that directly power a production platform and influence real-world decision-making. You'll own models throughout the lifecycle, from experimentation and feature engineering through evaluation, deployment, and production monitoring.
You'll work with complex, large-scale datasets and partner closely with engineering, data, and domain experts to develop models that are accurate, reliable, explainable, and ready for real-world use.
What You'll Do
- Design, train, evaluate, and improve production machine learning models
- Perform feature engineering across time-series, sequential, and structured data
- Own model development from experimentation through production
- Build evaluation frameworks, backtesting systems, and model regression tests
- Develop approaches for noisy or imperfect labels and ground truth
- Evaluate model performance across metrics including calibration, sensitivity, specificity, and class imbalance
- Identify and prevent issues such as temporal leakage and model degradation
- Analyze model robustness and performance across different populations and environments
- Partner with domain experts to define prediction targets and appropriate evaluation criteria
- Work closely with ML infrastructure and engineering teams on deployment and serving
- Monitor model performance in production and identify opportunities for improvement
- Clearly communicate model behavior, tradeoffs, and limitations to technical and non-technical stakeholders
What You Need
- 5+ years of experience building machine learning models that have reached production
- Strong Python
- Experience with modern deep learning frameworks
- Strong understanding of classical machine learning techniques
- Experience working with time-series or sequential data
- Strong model evaluation experience, including calibration, class imbalance, and temporal leakage
- Experience building evaluation, backtesting, or model regression infrastructure
- Strong SQL and experience working with production datasets
- Experience owning models beyond experimentation and into real-world production use
- Ability to communicate complex model behavior and limitations to non-technical stakeholders
- Bachelor's degree in Computer Science, Machine Learning, Statistics, Mathematics, or a related technical field
- Ability to work onsite in Jersey City, NJ at least 3 days per week
Nice to Have
- Experience building ML systems in healthcare or another regulated industry
- Experience with physiological, sensor, clinical, or other complex time-series data
- Experience with predictive modeling or early-warning systems
- Experience with model validation in highly regulated environments
- Experience performing subgroup, bias, or robustness analysis
- Research publications, significant open-source contributions, or a strong research or engineering background
- Startup or high-growth technology company experience
Compensation & Benefits
$180,000-$240,000 base salary + equity
- 100% company-paid medical, dental, and vision coverage
- 401(k) with company match
- Generous PTO
- Commuter stipend
Benefits