Contract Senior Data Analyst (SQL,Telemetry,Browser Engine)
At a glance
Senior Data Analysis & BI role at Mozilla. Remote, United Kingdom · £58,500–£78,000 base.
remoteroles summary, based on the employer's posting.
What you'll do
- Build and maintain dashboards that make Gecko performance data usable for product managers and leaders
- Inspect Gecko source code for missing telemetry probes needed to understand the product experience
- Create ways to spot and remove bot traffic and hardware-related noise from telemetry data
- Analyze how technical shifts such as LCP and eTLD+1 relate to user pain points and engagement
What you bring
- You use advanced SQL, including BigQuery or Redash, and can apply statistical methods such as correlation analysis
- You can turn technical requirements into business insights and work through unfamiliar problems independently
- You understand how browser components affect user experience
- You can visualize data using AI tools
Who this fits
This role suits a senior analyst comfortable working independently across Gecko telemetry on desktop and Android, alongside performance, data and product teams. It is remote in the UK.
From the employer
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:
Remote UK£58,500—£78,000 GBP
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