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

Mozilla; United States; Remote; USD 90,000 - 130,000; Full time

Job summary

Mozilla is seeking an analytics professional to bridge engineering telemetry and product strategy for Gecko engine data across Desktop and Android. You will deliver high-level dashboards to product leaders, audit telemetry coverage, and build data-cleaning methods to remove bot and noise from signals.

Your work will connect performance metrics like LCP to real user engagement insights. You will collaborate with Performance, Data, and Product Leadership teams to ensure high-fidelity data informs

Qualifications

• Advanced SQL and data visualization required.
• Experience with statistical analysis such as Pearson correlation recommended.
• Rust/C++ knowledge is a strong plus; browser component understanding helpful.

Responsibilities

• Automated Dashboards: create and maintain high-level dashboards for PMs and leadership.
• Telemetry Gap Analysis: audit Gecko codebase for missing probes.
• Data Sanitization Frameworks: filter bot noise from telemetry streams.
• Behavioral Inference Reports: relate performance shifts to user engagement.

Skills

SQL

Advanced SQL (BigQuery)

Redash

Data visualization with AI tools

Statistical analysis (Pearson, multiv)

Rust

C++

AI tools (Claude Code, Codex)

Domain knowledge: browser components

Independent problem solving

Tools

BigQuery

Redash

Job description

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

ScopeThe 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