Contract Sr Data Analyst (SQL,Telemetry,Browser Engine)

Responsibilities

The analyst will audit Gecko engine telemetry to identify data gaps and develop sanitization frameworks to filter bot traffic. They will also create automated dashboards and deliver behavioral inference reports to translate technical performance data into actionable product strategy.

Requirements

Candidates must possess advanced SQL skills and experience with statistical analysis, along with the ability to work independently in complex technical environments. Proficiency in AI tooling and domain knowledge of browser component interactions are highly desirable.

Skills

• SQL
• BigQuery
• Redash
• Data Visualization
• Statistical Analysis
• Rust
• C++
• Telemetry
• Data Sanitization
• Behavioral Inference
• Browser Engine
• Performance Analysis
• AI Tooling
• Claude Code
• Codex

About this role

The Gecko platform is the core engine of our product experience. To maintain competitiveness and user satisfaction, we must move beyond surface-level metrics to understand the deep correlations between engine performance and real-world user behavior. We currently face challenges with data quality, such as bot contamination in nightly telemetry, which obscures our understanding of true performance trends. A dedicated analyst is required to bridge the gap between engineering telemetry and actionable product strategy, ensuring that leadership has high-fidelity data to prioritize performance guardrails and technical budgets.
Engineering Deliverables
Automated Dashboards: Create and maintain high-level overview dashboards that translate complex performance data into consumable formats for Product Managers and leadership.
Telemetry Gap Analysis: Audit the Gecko codebase to identify missing collection points or "probes" necessary for a complete understanding of the product experience.
Data Sanitization Frameworks: Develop methodologies and tools to identify and filter data inconsistencies, specifically focusing on isolating bot traffic and hardware-specific noise from telemetry streams.
Behavioral Inference Reports: Deliver deep-dive analyses correlating technical performance shifts (e.g., LCP, eTLD+1) with user-facing pain points and engagement trends.
Scope, Skills, and Effort Estimate
Scope
The analyst will focus exclusively on Gecko engine telemetry across multiple platforms (Desktop and Android), collaborating with the Performance Team, Data Team, and Product Leadership.
Required Skills
Technical: Advanced SQL (BigQuery/Redash), proficiency in data visualization using AI tooling, and experience with statistical analysis (e.g., Pearson’s correlation, multivariate analysis). Knowledge of Rust/C++ is a strong plus. Strong proficiency with AI tools like Claude Code, Codex, or similar is highly desirable.
Domain Knowledge: Ability to understand browser component interactions and their impact on user experience.
Soft Skills: Proven ability to work independently, translating technical requirements into business insights.
Independent problem solving: Comfortable working in unfamiliar technical problem spaces and figuring out a path forward with minimal guidance, using documentation, experimentation, source code, data, and other available resources.
Hiring Ranges:
Canada Tier 1 Locations
$93,450—$124,600 CAD
Canada Tier 2 Locations
$84,600—$112,800 CAD
Hiring Ranges:
Remote Germany
€62.100—€82.800 EUR
Hiring Ranges:
Remote UK
£58,500—£78,000 GBP

About Mozilla

Software Development · 501-1,000 employees · headquartered in San Francisco, CA · founded 2005