Backend Performance Engineer

New

Skills

APM Tools Backend Architecture Caching Strategies Code Review MariaDB Memcached MySQL Performance Optimization Performance Profiling PHP

As a Backend Performance Engineer at Automattic, you will be a key player in optimizing the performance of our extensive product portfolio, which includes WordPress.com, WooCommerce, and more. Your role will focus on analyzing query plans, cache hit ratios, and PHP profiling data to enhance our backend performance, impacting tens of billions of page views each month.

Key Responsibilities
  • Identify and eliminate backend performance bottlenecks through profiling PHP applications and analyzing MySQL/MariaDB query performance.
  • Build and enhance performance observability, developing dashboards and instrumentation that highlight regressions before they reach production.
  • Collaborate with product and platform engineers to review code and architecture from a performance perspective.
  • Document best practices and mentor teams on writing scalable backend code.
  • Proactively search for performance issues and work to resolve them, conducting deep dives on individual sites.
Requirements & Qualifications
  • Deep hands-on experience with PHP performance, including profiling applications and understanding memory usage.
  • Strong knowledge of caching strategies, especially with Memcached.
  • Experience in performance work at scale, with systems handling millions of requests.
  • Ability to instrument, measure, and prove performance improvements using APM tools and dashboards.
  • Excellent written communication skills for a distributed, async-first work environment.
  • Self-direction and ownership in identifying and prioritizing performance work.
  • Bonus: Experience with WordPress and WooCommerce in high-traffic environments.

No forms. Your profile is generated instantly.

Job Type: Remote

Salary: Not Disclosed

Experience: Entry

Duration: Months

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