Staff Data Engineer — Search & ML Quality

United States Digital Space LLC; United States; Hybrid; USD 100,000 - 140,000; Full time

Job summary

United States Digital Space LLC is seeking an experienced analyst to help us build and improve our core search technologies. You'll work at the intersection of data analysis and engineering, designing metrics, building data pipelines, and improving the quality of our search and answer systems.

This role is hybrid in Belgrade, London or Berlin, with responsibilities including diagnosing quality issues in the search pipeline, designing metrics from scratch, building labeling pipelines using LLMs,

Qualifications

• 4+ years of experience as a data analyst or in a related role.
• Strong coding skills — expected to write production-grade code at a mid-level backend engineer level.
• Proficiency with SQL and Python.
• Demonstrated hands-on experience with at least one of the following: designing metrics from scratch, building labeling pipelines using LLM-as-a-judge, training ML models that shipped to production.

Responsibilities

• Find and diagnose quality issues in our search pipeline
• Design metrics from scratch to track and measure search quality
• Build datasets for model training, including LLM-as-a-judge labeling pipelines
• Improve search snippet quality and page selection algorithms for indexing
• Design and analyze A/B experiments to validate improvements

Skills

SQL

Python

Data analysis

Metrics design

Tools

Apache Spark

Databricks

Job description

United States Digital Space LLC is seeking an experienced analyst to help us build and improve our core search technologies. You'll work at the intersection of data analysis and engineering, designing metrics, building data pipelines, and improving the quality of our search and answer systems.

This role is hybrid in Belgrade, London or Berlin, with responsibilities including diagnosing quality issues in the search pipeline, designing metrics from scratch, building labeling pipelines using LLMs,