Automattic
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Remote
Performance Engineer- Backend Full Time
About This Opportunity
Automattic is looking for a Backend Performance Engineer to help optimize the performance of its large-scale backend systems powering products like WordPress.com, WooCommerce, Tumblr, Jetpack, and more.
This is a highly technical, deep-dive engineering role focused on identifying and eliminating performance bottlenecks across PHP applications, databases, and caching systems- ensuring millions of requests are served as efficiently as possible at global scale.
Company: Automattic
Accepting Applicants From: Remote from Anywhere
View the full job description and apply directly with Automattic
*Please apply if you genuinely think you meet the requirements.*
What You Will Do
- Profile and optimize PHP backend performance
- Analyze and improve MySQL/MariaDB query performance
- Optimize caching systems (e.g., Memcached) across products
- Identify and eliminate backend bottlenecks impacting scale and speed
- Build performance monitoring, dashboards, and observability tools
- Detect and prevent performance regressions before production impact
- Collaborate with engineers on performance-aware architecture and code
- Review code with a focus on efficiency and scalability
- Define and document backend performance best practices
- Investigate and resolve real-world production performance issues
Requirements
- Strong hands-on PHP performance engineering experience
- Deep understanding of backend profiling, memory, and execution optimization
- Experience with caching strategies (Memcached or similar)
- Experience working on high-scale systems with real production traffic
- Ability to instrument systems and validate performance improvements with data
- Strong analytical mindset (measure, don’t guess)
- Excellent written communication skills (async-first environment)
- Self-directed and able to prioritize high-impact work independently
- Bonus points if
Experience with WordPress and WooCommerce at scale
What You Get
- $70,000 – $170,000
- Fully remote globally
