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Kimberly Sereduck

Kimberly Sereduck

Developer Productivity Engineer • Carlsbad, United States

About

Software engineer with nearly six years of experience at Mozilla building internal tools, test infrastructure, and CI automation. Proven track record of improving developer workflows and shipping high-impact performance testing solutions.

Experience

2023 — 2023

Senior Software Engineer at Mozilla

Led a three-person engineering team to build PerfCompare, an internal tool that replaced the legacy performance comparison view. Introduced sprint planning and milestone tracking to manage a multi-quarter roadmap.

2020 — 2023

Performance Test Engineer at Mozilla

Facilitated performance-culture discussions and authored developer-experience improvement plans. Rebuilt page-load performance tests and updated mitmproxy-based tooling to produce more realistic regression data.

2017 — 2020

Software Engineer in Test at Mozilla

Revived a 12-year-old crash-detection system, reducing runtime and manual work by 82%. Developed pytest fixtures to simplify accessibility testing across projects.

2017 — 2017

Test Engineering Intern at Mozilla

Created and published axe-selenium-python and pytest-axe on PyPI, enabling automated accessibility testing in CI/CD. Delivered a lightning talk on the tools to the organization.

Projects

Web Security Auditor

Built CI/CD configuration generators for GitHub Actions, GitLab CI, and Jenkins with a configurable minimum-severity gate.

Education

2008 — 2010

Coursework in Computer Engineering at University of Mississippi

Skills

PythonJavaScriptTypeScriptSQLHTML/CSSBashCI/CDGitHub ActionsTest AutomationGitpytestSeleniumReactNode.jsExpressDjangoVitemitmproxy

Awards & Recognition

2026

Google Cybersecurity Certificate from Coursera

Professional certification in cybersecurity fundamentals.