Senior Data Scientist, Reliability at Block

Role Overview

You will join the Reliability Data Science team, leveraging observability event data and other large datasets to detect, diagnose, monitor, and measure reliability issues across the tech stacks of brands such as Square and Cash App. You will create tools and insights to help engineering & product teams improve system reliability as they release new features, OS versions, firmware, and apps.

Key Responsibilities

• Develop and maintain datasets, tools, and pipelines to expand or automate monitoring and alerting of reliability issues.

• Define KPIs and measurement systems focused on product/system reliability.

• Partner with engineering teams to use observability/event logging data for triage and diagnosis of reliability issues.

• Collaborate with engineering to design new logging/events for improved reliability monitoring.

• Evaluate and measure the business impact of reliability problems.

Requirements & Qualifications

• 8+ years of experience in data roles (data science/analytics)

• Advanced proficiency with SQL and Python.

• Experience using AI tools to accelerate development/enhance solutions.

• Experience with dashboarding tools, ETL/data engineering pipelines.

• Familiarity with machine-learning and statistical concepts.

• Familiarity with cloud engineering/infrastructure.

• Experience leading cross-functional projects and working with both technical and non-technical partners.