Are you a talented developer looking for a remote job that lets you show your skills and get decent
compensation? Join Upstaff.com, a platform
that connects you with hand-picked startups and scale-ups in the US and Europe.
What's the project about?
You'll be working with ML models for performance-based (pay-per-lead) marketing platform that relies on prediction, scoring, and ranking. You’ll work with rich tabular data, build models that power optimization loops, and collaborate closely with business and Data Engineering teams to prepare your models for production, not just notebooks.
Required Skills:
- Experience building and validating tabular ML models
- XGBoost/LightGBM/CatBoost and similar models, corresponding Python libraries
- Defining metrics and design validation setups
- Confident feature engineering and data quality/wrangling
- Data pipelines
Would be a Plus:
- Experience with model serving (FastAPI, Bento, TorchServe)
- Monitoring: drift, data checks, stability
- Background in ranking/optimization models
What will you do?
- Build predictive, scoring, and ranking models directly impacting client campaigns and ROI
- Own dataset preparation, pipelines, processes and validation strategies
- Design experiments that challenge assumptions and uncover real lift
- Collaborate with Software and Data Engineers on feature availability and consistency, packaging and preparing models for real usage in production
Who you are?
You have strong, hands-on experience with tabular ML (XGBoost, LightGBM, CatBoost), you’ve trained and validated models, and you enjoy shaping experiments that prove whether a hypothesis lives or dies. You think clearly, value clean data, honest metrics, and production impact.
Last Updated: March, 2026
