Empowering all teams to deliver and control their software.
Staff Engineer – Experimentation Team
Location
United States
Posted
44 days ago
Salary
$182.6K - $295.4K / year
Seniority
Lead
Job Description
Staff Engineer – Experimentation Team
LaunchDarkly
• Build the experimentation statistical engine — hypothesis testing, sequential analysis, variance reduction (CUPED, Winsorization), power analysis. Ensure statistical correctness across all experiment types. • Design warehouse-native experimentation that runs analysis inside customer warehouses (Snowflake, Databricks, Redshift, BigQuery). Build modular, warehouse-agnostic abstractions for rapid new backend support. • Lead adaptive experimentation — contextual bandit systems, Bayesian optimization, automated allocation beyond simple A/B tests. • Drive the platform roadmap with product, design, and data science. Shape what we build, not just how. • Collaborate cross-functionally with Warehouse Integrations, SDK, Platform, and Data Science teams. • Mentor engineers and raise the team's bar for statistical rigor and system design. • Own operational excellence — monitoring, observability, incident response, on-call. Robust telemetry and alerting.
Job Requirements
- 10+ years building large-scale experimentation platforms, statistical analysis systems, or data-intensive backend services.
- Applied-statistics knowledge: hypothesis testing, sequential analysis, variance reduction (CUPED), power analysis, experiment design. Comfortable with frequentist vs. Bayesian trade-offs.
- Experience with adaptive experimentation ML — contextual bandits, Thompson sampling, Bayesian optimization, or RL-based allocation.
- Track record designing warehouse-agnostic systems across Snowflake, Databricks, Redshift, BigQuery, or similar.
- Expertise in Go, Python, or similar for backend services and statistical computation.
- Experience with event-driven architectures, data pipelines, and large-scale data processing.
- Cloud environments (AWS, GCP) with infrastructure-as-code.
- Technical leadership: setting direction, breaking down complex problems, influencing across teams.
- Ability to translate statistical concepts for product and engineering audiences.
Benefits
- Restricted Stock Units (RSUs)
- Health, vision, and dental insurance
- Mental health benefits
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