Performance Engineer - Backend
New
North America, Latin America, Europe, Africa, APACFull-TimeMiddle
Salary70,000 - 170,000 USD per year
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Job Details
- Required Skills
- Backend DevelopmentPHPMySQLWordPress
Requirements
- Deep hands-on experience with PHP performance (profiling, identifying hot paths, memory usage).
- Strong understanding of caching layers and strategies (e.g., Memcached).
- Experience working on high-scale systems serving millions of requests.
- Ability to instrument, measure, and prove performance improvements using profiling tools and APM systems.
- Excellent written communication skills for async-first environments.
- Self-direction and ownership of high-impact performance projects.
Responsibilities
- Identifying and eliminating backend performance bottlenecks by profiling PHP applications, analyzing MySQL/MariaDB query performance, and optimizing Memcached usage.
- Building and improving performance observability through dashboards, instrumentation, and automated detection.
- Partnering with product and platform engineers to review code and architecture through a performance lens.
- Advocating for efficient database access patterns, caching strategies, and backend design decisions.
- Documenting best practices and contributing to internal guidelines for PHP and database performance.
- Mentoring teams on writing scalable backend code.
- Proactively searching for and resolving performance issues.
- Performing deep dives on individual sites to address customer performance issues.
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