Mozilla

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

Canada, Germany, UK full-time Mid Salary not listed
full-time Mid level Technology & IT Curated
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About the 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

Interview prep

Walk in with sharper answers.

Use this as a quick practice sheet before you speak with the employer.

Mid
Technology & IT MySQL Remote Collaboration SQL Writing Mid level full-time

Likely questions

  1. Tell us about work you have done that is close to the Contract Sr Data Analyst (SQL,Telemetry,Browser Engine) role.
  2. How would you approach your first 30 days at Mozilla?
  3. Which of MySQL, Remote Collaboration and SQL have you used recently, and what did it help you achieve?
  4. Describe a time you solved a problem without waiting to be told exactly what to do.
  5. How do you handle busy days, changing priorities, or pressure at work?

Prepare before the call

  • A recent example that proves your experience with MySQL, Remote Collaboration and SQL.
  • One short story with a problem, your action, and the result.
  • Two examples that show the strengths listed on your CV.
  • A clear reason why this role and company interest you.
  • Your availability, preferred work style, and salary expectations.

Ask them

  • What would success look like in the first 90 days?
  • What are the main problems this hire should help solve?
  • How does the team give feedback and measure good work?
  • What does a normal working week look like for this role?
Practice line

I am interested in the Contract Sr Data Analyst (SQL,Telemetry,Browser Engine) role because I can bring practical experience in MySQL, Remote Collaboration and SQL, learn the team quickly, and contribute to the outcomes Mozilla needs from this hire.

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