... online evaluation infrastructure -- measure the gap between them, don't assume it. • Publish ... Pandas, FastAPI, SQLAlchemy) • Strong SQL and modern data warehouse experience (BigQuery ...
... online evaluation infrastructure -- measure the gap between them, don't assume it. • Publish ... Pandas, FastAPI, SQLAlchemy) • Strong SQL and modern data warehouse experience (BigQuery ...
Stand up offline and online evaluation infrastructure - measure the gap between them, don't assume ... Strong production Python (NumPy, Pandas, FastAPI, SQLAlchemy). * Strong SQL and modern data ...
Stand up offline and online evaluation infrastructure - measure the gap between them, don't assume ... Strong production Python (NumPy, Pandas, FastAPI, SQLAlchemy). * Strong SQL and modern data ...
Sr. Lead AI Engineer
Boston, MA · On-site
... offline and online tests, and incident response for AIbacked systems; hold the bar for design ... Proficient in Python and modern backend frameworks (FastAPI, Django or similar), with experience ...
Sr. Lead AI Engineer
Boston, MA · On-site
... offline and online tests, and incident response for AIbacked systems; hold the bar for design ... Proficient in Python and modern backend frameworks (FastAPI, Django or similar), with experience ...
... online tests, and incident response for AI‑backed systems; hold the bar for design reviews and ... Proficient in Python and modern backend frameworks (FastAPI, Django or similar), with experience ...
Quick apply
... online tests, and incident response for AI‑backed systems; hold the bar for design reviews and ... Proficient in Python and modern backend frameworks (FastAPI, Django or similar), with experience ...
Sr. Lead AI Engineer
Boston, MA · On-site
... offline and online tests, and incident response for AI-backed systems; hold the bar for design ... Proficient in Python and modern backend frameworks (FastAPI, Django or similar), with experience ...
Sr. Lead AI Engineer
Boston, MA · On-site
... offline and online tests, and incident response for AI-backed systems; hold the bar for design ... Proficient in Python and modern backend frameworks (FastAPI, Django or similar), with experience ...
General Information
Boston, MA · On-site
... engineering processes. * Strong experience with Python, particularly in building REST APIs using frameworks like FastAPI. * Grounding in NLP and machine learning as they relate to building LLM ...
General Information
Boston, MA · On-site
... engineering processes. * Strong experience with Python, particularly in building REST APIs using frameworks like FastAPI. * Grounding in NLP and machine learning as they relate to building LLM ...
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Job description
Job Summary:
Onescreen is a modern platform for out-of-home advertising, focused on streamlining the planning, buying, and measuring of OOH campaigns. They are seeking a Founding Machine Learning Engineer to own the development of matching algorithms and the data platform that supports them, along with designing and shipping models that optimize OOH inventory rankings.
Responsibilities:
• Design and ship matching and ranking models for OOH inventory: candidate generation, re-ranking, geospatial-aware scoring.
• Own the data warehouse layer end to end: staging, marts, feature pipelines, freshness, lineage.
• Stand up offline and online evaluation infrastructure — measure the gap between them, don't assume it.
• Publish ranking and matching APIs for product surfaces, with latency and quality SLOs.
• Instrument model monitoring: drift detection, prediction distribution, feature freshness, retraining triggers.
Qualifications:
Required:
• you have owned a production ranking, matching, or recommendation system end-to-end
• Strong production Python (NumPy, Pandas, FastAPI, SQLAlchemy)
• Strong SQL and modern data warehouse experience (BigQuery preferred)
• Real ranking and matching modeling fluency — learning-to-rank, retrieval and re-rank patterns, not just classification
• Evaluation methodology rigor: holdouts, leakage prevention, online vs. offline gap measurement
• Comfort owning the data pipeline as well as the model
• Bias toward shipping. Clear writer. Self-directed.
Preferred:
• Geospatial data experience (H3, PostGIS, GeoPandas)
• Mobility or location data experience
• Embedding-based retrieval (pgvector, FAISS, vector databases)
• Bandits, contextual bandits, or online learning
• A/B testing infrastructure design
• Causal inference
• dbt
• Ad-tech or OOH domain familiarity
Company:
Onescreen is the modern partner for out-of-home advertising. Founded in 2020, the company is headquartered in Boston, USA, with a team of 51-200 employees. The company is currently Growth Stage.
Onescreen is a modern platform for out-of-home advertising, focused on streamlining the planning, buying, and measuring of OOH campaigns. They are seeking a Founding Machine Learning Engineer to own the development of matching algorithms and the data platform that supports them, along with designing and shipping models that optimize OOH inventory rankings.
Responsibilities:
• Design and ship matching and ranking models for OOH inventory: candidate generation, re-ranking, geospatial-aware scoring.
• Own the data warehouse layer end to end: staging, marts, feature pipelines, freshness, lineage.
• Stand up offline and online evaluation infrastructure — measure the gap between them, don't assume it.
• Publish ranking and matching APIs for product surfaces, with latency and quality SLOs.
• Instrument model monitoring: drift detection, prediction distribution, feature freshness, retraining triggers.
Qualifications:
Required:
• you have owned a production ranking, matching, or recommendation system end-to-end
• Strong production Python (NumPy, Pandas, FastAPI, SQLAlchemy)
• Strong SQL and modern data warehouse experience (BigQuery preferred)
• Real ranking and matching modeling fluency — learning-to-rank, retrieval and re-rank patterns, not just classification
• Evaluation methodology rigor: holdouts, leakage prevention, online vs. offline gap measurement
• Comfort owning the data pipeline as well as the model
• Bias toward shipping. Clear writer. Self-directed.
Preferred:
• Geospatial data experience (H3, PostGIS, GeoPandas)
• Mobility or location data experience
• Embedding-based retrieval (pgvector, FAISS, vector databases)
• Bandits, contextual bandits, or online learning
• A/B testing infrastructure design
• Causal inference
• dbt
• Ad-tech or OOH domain familiarity
Company:
Onescreen is the modern partner for out-of-home advertising. Founded in 2020, the company is headquartered in Boston, USA, with a team of 51-200 employees. The company is currently Growth Stage.